DC CIRCUITS Part I of III Parts. Part II installation. Part III troubleshooting

Size: px
Start display at page:

Download "DC CIRCUITS Part I of III Parts. Part II installation. Part III troubleshooting"

Transcription

1 DC CIRCUITS Part I of III Parts Part II installation Part III troubleshooting

2

3

4

5 Trane ComfortSite is a user-friendly Internet site designed to save you time and it s FREE for Trane Customers. Order Equipment, Parts, Literature and track Order Status Register for Training Programs Complete Warranty requirements online Search for specific Product Information Use interactive Product Support functions View account history and print invoices through Account Track Online And More! Make every business day more productive by using Trane ComfortSite. ComfortSite website: Not a registered user and want to learn more? Contact your local Trane Parts Distributor at (800) Need help locating your distributor? us at: support@comfortsite.com Class information available at:

6 What is a Variable Frequency Drive? A Variable Frequency Drive is an electronic device designed to vary the speed of a motor while maintaining power factors that are comparable to that of the motor at it s synchronous speed

7 VFD Cooling Tower Fan Control ALTIVAR 66 VLT 6000 Dan Foss ALTIVAR 58 Adjustable Speed Drives

8 HVAC Applications - Trane Equipment M Series Air Handlers T Series Air Handlers Orderable with Factory Mounted & Commissioned VFDs IntelliPak Rooftops Commercial Self-Contained Voyager III Rooftops CenTraVac Chillers Have VFDs installed and commissioned right at the Trane factory

9 HVAC Applications - Field Applied Cooling Towers Primary & Secondary Pumping Applications General Purpose HVAC Fans Special Purpose such as Parking Garage Fans Buildings are rich with Field Applied VFD opportunities

10 Simplified Operation TR1 TR200 Larger, easier-to-read display graphs Plain text Icons Up to 5 data items displayed Real Time Clock Free text displays Redesigned intuitive keypad LEDs indicate Hand/Off/Auto Mode One-touch alarm log key Usability enhanced with the TR200 local control panel

11 Read The Tag!

12 The VFD

13 Benefits of VFD Efficient means of modulating the output of conventional induction motors and synchronous motors. Make it practical to use precise motor speed in a wide variety of applications. VFDs offer the best turndown ratio. Some of the new models approach the near-zero-speed capability of DC drives. Low maintenance no moving parts other than push-buttons. Ease of installation and retrofit. Improved power factor Better control of variables

14 Limitations VFDs waste more energy as heat, particularly when there is significant speed reduction. The VFD does not deliver a true sine wave voltage to the motor. Harmonics may be an issue. VFDs increase losses in the transformers that feed them because of distortion of the input waveform. Some VFDs may cause existing motors to run substantially hotter. Not usable with conventional ac motors in applications where the motor must maintain high torque as the speed is reduced. Conventional motors lose their ability to get rid of heat as speed is reduced (limitation of the motor rather than a limitation of the drive.) Motors need to have cooling independent of motor speed, which is typically a special requirement. Overall system efficiency of modern dc drive systems and variable-pulley drives can be higher than the system efficiency of VFDs on induction or synchronous motors. Can lead to system power problems Can lead to system component or equipment failures Will not fix system problems More complexity more problems Need for qualified people to install, maintain and service

15 Types of VFD s Variable Voltage Input (VVI) This is the simplest type of VFD. The output switching devices approximate a sine wave voltage for the motor by a series of square waves at different voltages. VVI drives use a large capacitor in the DC link to provide a relatively constant DC voltage to the inverter. Current Source Input (CSI) Similar to a VVI, the main difference with CSI is that the CSI drive is able to force a square wave of current, rather than voltage, through the motor. CSI drives use a large inductor to keep the DC current relatively constant. Pulse Width Modulated (PWM) This is the most complex VFD design, but also offers the most potential for increasing motor efficiency. The PWM inverter uses transistors to switch the direct current at high frequency to deliver a series of voltage pulses to the motor. The width of each pulse is tailored so that the voltage pulses interact with the reactance of the motor windings to produce current flow in the motor that approximates a sine wave. Vector Drives-(VVFD)-- Vector drive is like an inverter drive except the Vector drive has feedback on rotor position. Feedback includes motor speed, current and back EMF. This takes place with open or closed loop control.

16 Control Analog Inputs Analog Outputs Part II installation Binary Inputs Binary Outputs Communicating system interfaces

17 Control Testing

18 TR-1 Control

19 TR-200 Control

20

21 Safety Stop

22 Control MCB 101 General Purpose MCB 105 Relay On-Board: Modbus RTU Johnso N2 Siemens FLN BACnet MS/TP (2Q 2009) MCB 115 Analog I/O Optional Modules: LonWorks FTP BACnet MS/TP DeviceNet (future) PROFIBUS DP (future) BACnet will be offered on-board as standard Easy-to-install, plug-in optional I/O

23 Magic Component's Regulator Electronic controls Filters Lots of Magic in the boxes which in realty is just electronics switching between 0 and 1.

24 VFD sections Regulator Controls the rectifier and inverter to produce the desired ac frequency and voltage. Rectifier Converts the fixed 60 Hz ac voltage input to dc. Inverter Switches the rectified dc voltage to ac, creating variable ac frequency (and controlling current flow, if desired).

25 Components Rectifier Inverter Power Quality

26 Input Drive Layout PWR Quality Output

27 TR200 Layout

28 TR-1

29 The Value of a Drive Return on investment 1. Drive Horsepower 746 watts equals 1 horsepower Horsepower Srpm = synchronous revolutions per minute. 120 = constant F = supply frequency (in cycles/sec) P = number of motor winding poles» Srpm = 120 x F P» HP = Torque x rpm Power Factor 3. Performance

30 TR-200

31

32 Safety Stop

33 An adjustable frequency drive converts AC to DC and then back to AC. AC DC AC Rectifier Inverter

34 AC PWM Drive: Diode Bridge Rectifier Rectifier DC

35

36

37

38

39

40 Rectifier

41 Half-Wave Rectifier

42 The Full Wave Rectifier

43

44 The Full Wave Rectifier

45

46

47

48 Period, range of q Diode Pair in conduction 30 o to 90 o D 1 and D 6 90 o to 150 o D 1 and D o to 210 o D 2 and D o to 270 o D 3 and D o to 330 o D 4 and D o to 360 o and 0 o to 30 o D 5 and D 6

49

50 CAPACITOR A capacitor is an electronic device which consists of two plates separated by some type of insulator. A capacitor's value is commonly referred to in microfarads, one millionth of a farad. It is expressed in micro farads because the farad is such a large value of capacitance. When a DC voltage source is applied to the capacitor there is an initial surge of current, then the current stops. When the current stops flowing, the capacitor is in a charged state. If the DC source is removed from the capacitor, the capacitor will retain a voltage across its terminals. This charge can be discharged by connecting the plates together. Generally, if an AC voltage source is connected across the capacitor, the current will flow through the capacitor until the source is removed. The exceptions to the situation, where an AC voltage is applied to a capacitor, are going to be explained later.

51

52 DC BUSS CAPACITORS: THE GOOD, THE BAD, AND THE UGLY!

53

54 Inductors (Chokes) Inductors are simple coils of wire Stores energy in the form of magnetic fields Unit of measure is Henries Used to delay and reshape alternating currents

55

56 An inductor stores energy in the magnetic field created by the current. When the current through a coil changes and an induced voltage is created as a result of the changing magnetic field, the direction of the induced voltage is such that it always opposes the change in current.

57 What reactions do you see in AC or DC. DC current Back EMF present during DC turn-on until stabilized, Back EMF present with polarity reversed during DC turn-off until decay is complete. AC current Back EMF present alternating in each direction due to on off action of AC

58 Inductor Applications Coils resist rapid changes in the current flowing through them. Inductors freely pass steady dc current.

59 The Inverter Section Controls the frequency applied to the motor. Controls the speed of the motor.

60 A/C Power

61

62

63 Position A B C T T T T T T T

64

65

66

67

68

69 VFD Introduction How they do it: Change the frequency of the electricity to the AC motor to change its speed Change the voltage to the AC motor as appropriate for the frequency and load Voltage High Speed Frequency Voltage Low Speed Frequency Half the Frequency, Half the Synchronous Motor Speed

70

71 Input Harmonics VFD meets IEEE harmonic distortion voltage and current limits. VFD is supplied with a minimum 18 pulse input. VFD manufacturer guarantees compliance to IEEE by offering on-site testing. Institute of Electrical Engineers L'institut des ingénieurs électroniciens et électriques, inc..

72 If a drive must be supplied with an input harmonic filter to meet IEEE , the drive manufacturer must address if filter must be modified if the user: a. moves the VFD to a different power system, b. changes the present power system (e.g. changes upstream transformers, cables, etc.) or c. operates the VFD on two different power sources (e.g. normal operation and generator operation).

73 VFD system efficiency shall be a minimum of 96%. VFD system efficiency includes losses in: power conversion equipment input transformers output transformers (if needed) power factor correction (if needed) harmonic filters (if needed). VFD system efficiency value is guaranteed by vendor.

74 A drive should have an efficiency rating of 95% or better at full load. Variable frequency drives should also offer a true system power factor of 95% or better across the operational speed range, to avoid penalties from the power utility, save on energy bills, and to protect you equipment (especially motors).

75 Motor Issues Standard AC induction motors can be operated by the VFD system without motor de-rating. VFD system is supplied with input transformer to protect motor from common mode voltages. VFD systems using an input line reactor in lieu of an input transformer are unacceptable. All output voltage harmonics in the motor waveform up to the 200th harmonic are less than 10% of the fundamental. The motor voltage maximum step size is less than 1200V in order to reduce reflected wave insulation stress associated with long motor cables. All current harmonics in the motor waveform up to the 200th harmonic are less than 3% of the fundamental at full load. VFD system can produce at least 100% full load torque at locked rotor conditions

76 Input Power Ridethrough Capabilities VFD can ride through a 5 cycle loss of input power without tripping. VFD can ride through a 30% voltage dip indefinitely without tripping. A decrease in output speed and power is allowable.

77 Power Component Replacement/Repair Since minimizing drive down-time is essential to maximizing the user s profits, the time required to replace a failed power component or cell is critical. The drive vendor shall provide a timed demonstration of the replacement of a failed power module. Power module replacement time shall be less than fifteen (15) minutes. Rear or side access to the equipment is NOT required for troubleshooting or periodic maintenance

78 Operating Experience The VFD vendor shall provide a users list of operating units in the field. This list shall only include those units that are similar in power circuit topology to those being proposed for the present project. VFD vendor shall have units of similar power circuit technology operating in the field for at least two (2) years

Understanding Electronic Controls Diagrams

Understanding Electronic Controls Diagrams Understanding Electronic Controls Diagrams 1 DC Circuit Rules 2 Inputs VS outputs Micro processors 3 Troubleshooting Tools Jumper Wires Circuit Breaker Diode 50 KΩ potentiometer 500 Ω Resistor 9 VDC battery

More information

Adjustable Frequency Drive Fundamentals By Rick Porembski Of The Sandberg Div. of Bornquist.

Adjustable Frequency Drive Fundamentals By Rick Porembski Of The Sandberg Div. of Bornquist. Adjustable Frequency Drive Fundamentals By Rick Porembski Of. Why do we want to do variable speed pumping? Flow Control HVAC systems are designed for worst case situations. Most of the time they have excess

More information

E3 Adjustable Speed Drive Engineering Specification

E3 Adjustable Speed Drive Engineering Specification E3 Adjustable Speed Drive Engineering Specification PART 1 - GENERAL 1.0 Scope This specification shall cover Toshiba E3 AC Variable Frequency Drives, 6 pulse for 230V and 460V. 1.1 References A. National

More information

VARIABLE FREQUENCY DRIVE

VARIABLE FREQUENCY DRIVE VARIABLE FREQUENCY DRIVE Yatindra Lohomi 1, Nishank Nama 2, Umesh Kumar 3, Nosheen aara 4, Uday Raj 5 (Assistant Professor in Department of Electrical Engineering GIET Kota2) (Department of Electrical

More information

S11 Adjustable Speed Drive Engineering Specification

S11 Adjustable Speed Drive Engineering Specification PART 1 - GENERAL 1.0 Scope This specification shall cover Toshiba S11 AC Variable Frequency Drives, 6 pulse for 3- phase 200-240VAC, 380-500VAC and single phase 200V to 240VAC. 1.1 References A. National

More information

VFDs and Harmonics in HVAC Applications

VFDs and Harmonics in HVAC Applications VFDs and Harmonics in HVAC Applications Larry Gardner Product Marketing Manager Yaskawa America, Inc. Jeff Grant Senior Sales Engineer LONG Building Technologies October 20, 2016 2016 Yaskawa America,

More information

Drives 101 Lesson 3. Parts of a Variable Frequency Drive (VFD)

Drives 101 Lesson 3. Parts of a Variable Frequency Drive (VFD) Drives 101 Lesson 3 Parts of a Variable Frequency Drive (VFD) This lesson covers the parts that make up the Variable Frequency Drive (VFD) and describes the basic operation of each part. Here is the basics

More information

Harmonics and Their Impact on Power Quality. Wayne Walcott Application Engineering Manager June, 2017

Harmonics and Their Impact on Power Quality. Wayne Walcott Application Engineering Manager June, 2017 Harmonics and Their Impact on Power Quality Wayne Walcott Application Engineering Manager June, 2017 Presentation Overview A little about harmonics What are harmonics What are NOT harmonics What creates

More information

Index 2. G Gain settings 4 31 Glossary of terms A 2 Grommets 2 13

Index 2. G Gain settings 4 31 Glossary of terms A 2 Grommets 2 13 Index A A Group functions 3 9 AC reactors 5 3 Acceleration 1 15, 3 8 characteristic curves 3 26 second function 3 24 two-stage 4 19 Acceleration stop function 3 21 Access levels 3 5, 3 36, 4 25 Access

More information

Variable Frequency Drive Packages with Harmonic Mitigation. Low Harmonic Drive Packages Engineered by Rockwell Automation

Variable Frequency Drive Packages with Harmonic Mitigation. Low Harmonic Drive Packages Engineered by Rockwell Automation Variable Frequency Drive Packages with Harmonic Mitigation Low Harmonic Drive Packages Engineered by Rockwell Automation What Do I Need to know About Harmonics? What are Harmonics? Harmonics are deviations

More information

Harmonics White Paper

Harmonics White Paper Harmonics White Paper New Breakthrough In PWM Drives Technology Reduces Input Line Harmonics Without the Use of Filtering Devices Harmonic Distortion Damages Equipment and Creates a Host of Other Problems

More information

TMdrive -XL Series Family Product Application Guide. solar inverters. power generation

TMdrive -XL Series Family Product Application Guide. solar inverters. power generation TMdrive -XL Series Family Product Application Guide metals cranes mining testing oil & gas solar inverters power generation cement TMdrive-XL Series 8 MVA 15 MVA 20 MVA 30 MVA The TMdrive XL series family

More information

VF-nC1 Adjustable Speed Drive Engineering Specification

VF-nC1 Adjustable Speed Drive Engineering Specification PART 1 - GENERAL 1.0 Scope This specification shall cover Toshiba VF-nC1 AC Variable Frequency Drives, 6 pulse for 100V single-phase 0.1 to 0.75kW, 200V single-phase 0.2 to 2.2kW and 200V threephase 0.1

More information

CEU Certification Test Drive Road Show: TRM040-DrivesRoadShow-CEU

CEU Certification Test Drive Road Show: TRM040-DrivesRoadShow-CEU Taking the Certification Test Please record all answers on this answer sheet. The total number of points possible on this test is 35. A passing score is 80% or better (no more than 7 wrong). Returning

More information

Frequently Asked Questions (FAQs) MV1000 Drive

Frequently Asked Questions (FAQs) MV1000 Drive QUESTION 1. What is a conventional PWM Inverter? 2. What is a medium voltage inverter? 3. Are all MV inverters Voltage Source (VSI) design? 4. What is a Current Source Inverter (CSI)? 5. What output power

More information

CHAPTER 6 THREE-LEVEL INVERTER WITH LC FILTER

CHAPTER 6 THREE-LEVEL INVERTER WITH LC FILTER 97 CHAPTER 6 THREE-LEVEL INVERTER WITH LC FILTER 6.1 INTRODUCTION Multi level inverters are proven to be an ideal technique for improving the voltage and current profile to closely match with the sinusoidal

More information

Harmonic Solutions. Clean Power Drive Solution to Harmonic Distortion

Harmonic Solutions. Clean Power Drive Solution to Harmonic Distortion Harmonic Solutions Clean Power Drive Solution to Harmonic Distortion UTILITY GRID UTILITY SWITCH YARD IN THE FACILITY IEEE-519 POINT OF COMMON COUPLING POWER PLANT GENERATION TRANSMISSION MEDIUM VOLTAGE

More information

Reducing Total Harmonic Distortion with Variable Frequency Drives

Reducing Total Harmonic Distortion with Variable Frequency Drives Reducing Total Harmonic Distortion with Variable Frequency Drives Low Harmonic Technology in Optidrive Eco Overview Overview Both AC line chokes and DC link chokes have historically been used with Variable

More information

VARIABLE FREQUENCY DRIVE OPERATION AND APPLICATION OF VARIABLE FREQUENCY DRIVE (VFD) TECHNOLOGY

VARIABLE FREQUENCY DRIVE OPERATION AND APPLICATION OF VARIABLE FREQUENCY DRIVE (VFD) TECHNOLOGY VARIABLE FREQUENCY DRIVE OPERATION AND APPLICATION OF VARIABLE FREQUENCY DRIVE (VFD) TECHNOLOGY Carrier Corporation Syracuse, New York October 2005 TABLE OF CONTENTS INTRODUCTION... 2 Common VFD Terms

More information

CoolBLUE Inductive Absorbers NaLA Noise Line Absorbers

CoolBLUE Inductive Absorbers NaLA Noise Line Absorbers CoolBLUE Inductive Absorbers NaLA Noise Line Absorbers Motor Bearing Solution from MH&W International Corp. http://www.coolblue-mhw.com Variable Frequency Motor Drive Systems 1. What is the problem 2.

More information

OBICON. Perfect Harmony. Short overview. ROBICON Perfect Harmony. System Overview. The Topology. The System. ProToPS. Motors.

OBICON. Perfect Harmony. Short overview. ROBICON Perfect Harmony. System Overview. The Topology. The System. ProToPS. Motors. and Drives Control R Interface OBICON Perfect Harmony Short overview 14.03.2007 1 System overview Product features Truly Scaleable Technology 300 kw to 30 MW (Single Channel) Large Number of Framesizes

More information

ADJUSTABLE SPEED DRIVES. HX7 Series. 18 Pulse. Phone: Fax: Web: -

ADJUSTABLE SPEED DRIVES. HX7 Series. 18 Pulse. Phone: Fax: Web:  - ADJUSTABLE SPEED DRIVES HX7 Series 18 Pulse Toshiba HX7 In some industrial applications, users need reliable and efficient adjustable speed drives that do not contribute significant harmonic distortion

More information

Electromechanical Technology /Electromechanical Engineering Technology CIP Task Grid

Electromechanical Technology /Electromechanical Engineering Technology CIP Task Grid 1 Secondary Task List 100 DEMONSTRATE KNOWLEDGE OF TECHNICAL REPORTS 101 Identify components of technical reports. 102 Demonstrate knowledge of the common components of technical documents. 103 Maintain

More information

Generator Advanced Concepts

Generator Advanced Concepts Generator Advanced Concepts Common Topics, The Practical Side Machine Output Voltage Equation Pitch Harmonics Circulating Currents when Paralleling Reactances and Time Constants Three Generator Curves

More information

ADJUSTABLE SPEED DRIVES FS1

ADJUSTABLE SPEED DRIVES FS1 ADJUSTABLE SPEED DRIVES FS1 Now Available With LonWorks BACnet & MetasysN2 FS1 Model FLA & Dimensions (in.)/ Weight (lbs.) VOLTAGE HP MODEL NUMBER FLA FRAME Dimensions (in.) SHIPPING H W D WEIGHT (lbs.)

More information

ECET Industrial Motor Control. Variable Frequency Drives. Electronic Motor Drives

ECET Industrial Motor Control. Variable Frequency Drives. Electronic Motor Drives ECET 4530 Industrial Motor Control Variable Frequency Drives Electronic Motor Drives Electronic motor drives are devices that control the speed, torque and/or rotational direction of electric motors. Electronic

More information

Open-Delta Systems Affect Variable Frequency Drives

Open-Delta Systems Affect Variable Frequency Drives Open-Delta Systems Affect Variable Frequency Drives To avoid premature drive failure, proper precautions must be taken when installing VFDs on open-delta supplies. Written by: Dan Peters, Yaskawa America,

More information

FUJI Inverter. Standard Specifications

FUJI Inverter. Standard Specifications FUJI Inverter o Standard Specifications Norminal applied motor The rated output of a general-purpose motor, stated in kw. That is used as a standard motor. Rated capacity The rating of an output capacity,

More information

Technical Paper. Harmonic Distortion in Data Centers

Technical Paper. Harmonic Distortion in Data Centers Technical Paper Harmonic in Data Centers Written By: Ian Wallace Summary Power quality and power reliability are critical to data center operation. As strides have been made to improve energy efficiency

More information

1. Institute of Electrical and Electronic Engineers (IEEE) a. Standard , IEEE Guide for Harmonic Content and Control.

1. Institute of Electrical and Electronic Engineers (IEEE) a. Standard , IEEE Guide for Harmonic Content and Control. Section 16680 VARIABLE SPEED DRIVE SYSTEMS OR AFD Part I - GENERAL I.01 Description A. This specification is to cover a complete adjustable frequency motor drive consisting of a pulse width modulated (PWM)

More information

P2 Power Solutions Pvt. Ltd. P2 Power Magnetics. Quality Power within your Reach. An ISO 9001:2008 Company

P2 Power Solutions Pvt. Ltd. P2 Power Magnetics. Quality Power within your Reach. An ISO 9001:2008 Company P2 Power Solutions Pvt. Ltd. An ISO 9001:2008 Company Quality Power within your Reach P2 Power Magnetics P2 Power Solutions Pvt. Ltd. P2 Power Solutions Pvt. Ltd. provides EMC and power quality solutions,

More information

L E C T U R E R, E L E C T R I C A L A N D M I C R O E L E C T R O N I C E N G I N E E R I N G

L E C T U R E R, E L E C T R I C A L A N D M I C R O E L E C T R O N I C E N G I N E E R I N G P R O F. S L A C K L E C T U R E R, E L E C T R I C A L A N D M I C R O E L E C T R O N I C E N G I N E E R I N G G B S E E E @ R I T. E D U B L D I N G 9, O F F I C E 0 9-3 1 8 9 ( 5 8 5 ) 4 7 5-5 1 0

More information

AC Drive Technology. An Overview for the Converting Industry. Siemens Industry, Inc All rights reserved.

AC Drive Technology. An Overview for the Converting Industry.  Siemens Industry, Inc All rights reserved. AC Drive Technology An Overview for the Converting Industry www.usa.siemens.com/converting Siemens Industry, Inc. 2016 All rights reserved. Answers for industry. AC Drive Technology Drive Systems AC Motors

More information

2.10. Adjustable Frequency Drives. Clean Power Drives. Clean Power Drives

2.10. Adjustable Frequency Drives. Clean Power Drives. Clean Power Drives .0 Volume 6 Solid-State Control CA0800007E March 05 www.eaton.com V6-T-47 .0 Adjustable Frequency Drives Overview What Are Harmonics? Take a perfect wave with a fundamental frequency of 60 Hz, which is

More information

ADJUSTABLE SPEED DRIVES. W7 Series. 18 Pulse

ADJUSTABLE SPEED DRIVES. W7 Series. 18 Pulse ADJUSTABLE SPEED DRIVES W7 Series 18 Pulse Meets or Exceeds Your Specifications Standard Specifications Item Voltage Class 460V Maximum HP 60 75 100 125 150 200 250 300 400 500 600 700 800 Drive Rating

More information

SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 12 BASIC ELECTRICITY AND MAGNETISM. Unit Objectives. Unit Objectives 2/29/2012

SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 12 BASIC ELECTRICITY AND MAGNETISM. Unit Objectives. Unit Objectives 2/29/2012 SECTION 3 BASIC AUTOMATIC CONTROLS UNIT 12 BASIC ELECTRICITY AND MAGNETISM Unit Objectives Describe the structure of an atom. Identify atoms with a positive charge and atoms with a negative charge. Explain

More information

Phoenix DX Clean Power (18 Pulse) AC Drive

Phoenix DX Clean Power (18 Pulse) AC Drive PHOENIX DX Phoenix DX Clean Power (18 Pulse) AC Drive Poor power quality can be costly. Nonlinear loads, including AC Drives, introduce undesirable harmonic currents into the power system that can damage

More information

Meduim Voltage Drives

Meduim Voltage Drives YANTRA HARVEST Meduim Voltage Drives YANTRA HARVEST ENERGY PVT. LTD. Office No. 101, 102, 103, Plot No. 84, Survey No. 40, Ambedkar Road, Sangamwadi, Near RTO Office, Pune - 411001 (India) Tel / Fax :

More information

Harmonic Distortion and Variable Frequency Drives

Harmonic Distortion and Variable Frequency Drives Harmonic Distortion and Variable Frequency Drives Definitions Variable Frequency Drives (VFDs); sometimes referred to as variable speed drives. Harmonic Distortion is a measure of the amount of deviation

More information

SECTIONS , (15040, 15767, 15950, 16269) Guide Specification for VARIABLE SPEED DRIVES with Optional Bypass

SECTIONS , (15040, 15767, 15950, 16269) Guide Specification for VARIABLE SPEED DRIVES with Optional Bypass PART 1: GENERAL 1.01 SCOPE A. This specification describes the electrical, mechanical, environmental, agency and reliability requirements for three phase, variable speed drives as specified herein and

More information

General Purpose Drives

General Purpose Drives AC Variable Speed Drive General Purpose Drives Dedicated to Low Power Applications 0.37kW 11kW / 0.5HP 15HP 200 480V 3 Phase Input AC Variable Speed Drive 0.37kW 11kW / 0.5HP 15HP 110 480V Single & 3 Phase

More information

MEDIUM & HIGH VOLTAGE

MEDIUM & HIGH VOLTAGE MEDIUM & HIGH VOLTAGE TESTING EQUIPMENT VOLTAGE WITHSTAND SGM Series Resonant Systems The SGM series are used for generating high AC voltages at a fixed frequency (mainly 50 or 60 Hz) by means of an excited

More information

Analysis of Advanced Techniques to Eliminate Harmonics in AC Drives

Analysis of Advanced Techniques to Eliminate Harmonics in AC Drives Analysis of Advanced Techniques to Eliminate Harmonics in AC Drives Amit P. Wankhade 1, Prof. C. Veeresh 2 2 Assistant Professor, MIT mandsour E-mail- amitwankhade03@gmail.com Abstract Variable speed AC

More information

Calhoon MEBA Engineering School. Study Guide for Proficiency Testing Industrial Electronics

Calhoon MEBA Engineering School. Study Guide for Proficiency Testing Industrial Electronics Calhoon MEBA Engineering School Study Guide for Proficiency Testing Industrial Electronics January 0. Which factors affect the end-to-end resistance of a metallic conductor?. A waveform shows three complete

More information

PowerFlex Medium Voltage Drives with Direct-to-Drive Technology Eliminating the Isolation Transformer

PowerFlex Medium Voltage Drives with Direct-to-Drive Technology Eliminating the Isolation Transformer PowerFlex Medium Voltage Drives with Direct-to-Drive Technology Eliminating the Isolation Transformer Transformerless drives help industry reduce the cost of motor control while using standard motors.

More information

ADJUSTABLE SPEED DRIVES. HX7 Series. 18-Pulse

ADJUSTABLE SPEED DRIVES. HX7 Series. 18-Pulse ADJUSTABLE SPEED DRIVES HX7 Series 18-Pulse Toshiba HX7 In some industrial applications, users need reliable and efficient adjustable speed drives that do not contribute significant harmonic distortion

More information

Pulse Width Modulated Motor Drive Fault Detection Using Electrical Signature Analysis

Pulse Width Modulated Motor Drive Fault Detection Using Electrical Signature Analysis Pulse Width Modulated Motor Drive Fault Detection Using Electrical Signature Analysis By ALL-TEST Pro, LLC & EMA Inc. Industry s use of Motor Drives for AC motors continues to grow and the Pulse-Width

More information

FINAL - ET 60 - Electrician Theory Examination Marking Schedule

FINAL - ET 60 - Electrician Theory Examination Marking Schedule FINAL - ET 60 - Electrician Theory Examination Marking Schedule Notes:1. means that the preceding statement/answer earns 1 mark. 2. This schedule sets out the accepted answers to the examination questions.

More information

Inductance, capacitance and resistance

Inductance, capacitance and resistance Inductance, capacitance and resistance As previously discussed inductors and capacitors create loads on a circuit. This is called reactance. It varies depending on current and frequency. At no frequency,

More information

Distributed Energy Engineering

Distributed Energy Engineering Distributed Energy Engineering (IKE1002) Part5: Frequency Converter Energy growth 2007-2030 by IEA World average Energy efficiency potential Electrical energy needed to produce 1 USD in GNP Midle-East

More information

Economical Solutions to Meet Harmonic Distortion Limits[4]

Economical Solutions to Meet Harmonic Distortion Limits[4] Economical Solutions to Meet Harmonic Distortion Limits[4] Abstract: The widespread adoption of variable frequency drive technology is allowing electricity to be utilized more efficiently throughout most

More information

Perkins Statewide Articulation Agreement. Documentation item: Secondary Competency Task List Coversheet

Perkins Statewide Articulation Agreement. Documentation item: Secondary Competency Task List Coversheet Perkins Statewide Articulation Agreement Documentation item: Secondary Task List Coversheet The Secondary School agrees to: A. Implement the approved PDE Program(s) of Study. B. Provide assessment of student

More information

Reduce harmonics in HVAC&R inverters through C-Less technology

Reduce harmonics in HVAC&R inverters through C-Less technology Reduce harmonics in HVAC&R inverters through C-Less technology Karim Lamrabtine Global Product Manager VSD 14-15 SEPTEMBER 2011, MUNICH Agenda www.infoplc.net What are Harmonics? Standards Compliance How

More information

ECET 211 Electric Machines & Controls Lecture 9-1 Adjustable-Speed Drives and PLC Installations (1 of 2)

ECET 211 Electric Machines & Controls Lecture 9-1 Adjustable-Speed Drives and PLC Installations (1 of 2) ECET 211 Electric Machines & Controls Lecture 9-1 Adjustable-Speed Drives (1 of 2) Text Book: Electric Motors and Control Systems, by Frank D. Petruzella, published by McGraw Hill, 2015. Paul I-Hai Lin,

More information

International Journal of Advance Engineering and Research Development

International Journal of Advance Engineering and Research Development Scientific Journal of Impact Factor (SJIF): 4.14 International Journal of Advance Engineering and Research Development Volume 3, Issue 10, October -2016 e-issn (O): 2348-4470 p-issn (P): 2348-6406 Single

More information

Nicolò Antonante Kristian Bergaplass Mumba Collins

Nicolò Antonante Kristian Bergaplass Mumba Collins Norwegian University of Science and Technology TET4190 Power Electronics for Renewable Energy Mini-project 19 Power Electronics in Motor Drive Application Nicolò Antonante Kristian Bergaplass Mumba Collins

More information

Low Pass Harmonic Filters

Low Pass Harmonic Filters Exclusive e-rated Provider PRODUCT SHEET HARMITIGATOR TM Low Pass Harmonic Filters A solution for electrical distribution systems that require stable, reliable power, characterized by unparalleled power

More information

CHAPTER 6 BRIDGELESS PFC CUK CONVERTER FED PMBLDC MOTOR

CHAPTER 6 BRIDGELESS PFC CUK CONVERTER FED PMBLDC MOTOR 105 CHAPTER 6 BRIDGELESS PFC CUK CONVERTER FED PMBLDC MOTOR 6.1 GENERAL The line current drawn by the conventional diode rectifier filter capacitor is peaked pulse current. This results in utility line

More information

Reliable power onboard and offshore

Reliable power onboard and offshore Reliable power onboard and offshore AccuSine PCS+ Active Harmonic Filters For electrical network reliability and quality in Marine 2 What causes harmonics in Marine applications? Power electronics with

More information

( ) ON s inductance of 10 mh. The motor draws an average current of 20A at a constant back emf of 80 V, under steady state.

( ) ON s inductance of 10 mh. The motor draws an average current of 20A at a constant back emf of 80 V, under steady state. 1991 1.12 The operating state that distinguishes a silicon controlled rectifier (SCR) from a diode is (a) forward conduction state (b) forward blocking state (c) reverse conduction state (d) reverse blocking

More information

13. DC to AC Converters

13. DC to AC Converters 13. DC to AC Converters Inverters Inverter is a device which converts DC voltages (or current) to AC voltages (or current).inverter converting voltage is called VOLTAGE SOURCE INVERTER (VSI), while inverter

More information

Unit 3 Magnetism...21 Introduction The Natural Magnet Magnetic Polarities Magnetic Compass...21

Unit 3 Magnetism...21 Introduction The Natural Magnet Magnetic Polarities Magnetic Compass...21 Chapter 1 Electrical Fundamentals Unit 1 Matter...3 Introduction...3 1.1 Matter...3 1.2 Atomic Theory...3 1.3 Law of Electrical Charges...4 1.4 Law of Atomic Charges...4 Negative Atomic Charge...4 Positive

More information

Speed Control Of Transformer Cooler Control By Using PWM

Speed Control Of Transformer Cooler Control By Using PWM Speed Control Of Transformer Cooler Control By Using PWM Bhushan Rakhonde 1, Santosh V. Shinde 2, Swapnil R. Unhone 3 1 (assistant professor,department Electrical Egg.(E&P), Des s Coet / S.G.B.A.University,

More information

PowerFlex 400 AC Drive Guide Specification

PowerFlex 400 AC Drive Guide Specification PowerFlex 400 AC Drive Guide Specification Adjustable Frequency Drives 3.0 50HP @ 200 to 240V AC 3.0 350HP @ 380 to 480V AC PART 1 GENERAL 1.01 Quality Assurance A. The manufacturer shall have minimum

More information

Preface...x Chapter 1 Electrical Fundamentals

Preface...x Chapter 1 Electrical Fundamentals Preface...x Chapter 1 Electrical Fundamentals Unit 1 Matter...3 Introduction...3 1.1 Matter...3 1.2 Atomic Theory...3 1.3 Law of Electrical Charges...4 1.4 Law of Atomic Charges...5 Negative Atomic Charge...5

More information

Excitation Systems THYRIPART. Compound-Excitation System for Synchronous Generators. Power Generation

Excitation Systems THYRIPART. Compound-Excitation System for Synchronous Generators. Power Generation Excitation Systems Compound-Excitation System for Synchronous Generators Power Generation Operating Characteristics Load dependent Short circuit supporting Low voltage gradient dv/dt Black start capability

More information

Learning Module 20: Adjustable Frequency Drives. 101 Basic Series

Learning Module 20: Adjustable Frequency Drives. 101 Basic Series Learning Module 20: Adjustable Frequency Drives 101 Basic Series What You Will Learn We ll step through each of these topics in detail: Importance of Motor Speed Control 5 How Can Motor Speed Be Controlled?

More information

A Subsidiary of Regal-Beloit Corporation. AC Inverter Terminology

A Subsidiary of Regal-Beloit Corporation. AC Inverter Terminology AP200-9/01 Acceleration The rate of change in velocity as a function of time. Acceleration usually refers to increasing velocity and deceleration to decreasing velocity. Acceleration Boost During acceleration,

More information

Application Note. Applicable Product: AC Drives

Application Note. Applicable Product: AC Drives Application Note Application Note Guidelines For The Use Of 400-600 Volt AC Drives In Medium Voltage Applications Applicable Product: AC Drives 4kV Step-down Transformer AC Drive 400-600V Output Filter

More information

Thyristorised Automatic Power Factor

Thyristorised Automatic Power Factor Thyristorised Automatic Power Factor Correction with 7% D Tune Harmonics Suppression (Reactor/Filtering) System Power quality? In the present Low voltage (LV) industrial distribution system the power factor

More information

P-SERIES VFD 1-40HP (200~230VAC), 1-400HP (380~480VAC),3Ø Dual Rated for Constant & Variable Torque Integrated PID Control

P-SERIES VFD 1-40HP (200~230VAC), 1-400HP (380~480VAC),3Ø Dual Rated for Constant & Variable Torque Integrated PID Control P-SERIES VFD 1-40HP (200~230VAC), 1-400HP (380~480VAC),3Ø Dual Rated for Constant & Variable Torque Integrated PID Control NEW FIRMWARE MAKES SETUP A SNAP Application based commissioning allows parameters

More information

COOPERATIVE PATENT CLASSIFICATION

COOPERATIVE PATENT CLASSIFICATION CPC H H02 COOPERATIVE PATENT CLASSIFICATION ELECTRICITY (NOTE omitted) GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN

More information

AF91 Adjustable Frequency Drives Series B

AF91 Adjustable Frequency Drives Series B Effective: January, 00 Page New Information AF9 Adjustable Model AF9 Description Model AF9 Adjustable Frequency AC Drives are designed to provide adjustable speed control of -phase motors. These microprocessor-based

More information

Conventional Paper-II-2011 Part-1A

Conventional Paper-II-2011 Part-1A Conventional Paper-II-2011 Part-1A 1(a) (b) (c) (d) (e) (f) (g) (h) The purpose of providing dummy coils in the armature of a DC machine is to: (A) Increase voltage induced (B) Decrease the armature resistance

More information

SECTION LOW VOLTAGE ACTIVE HARMONIC FILTER SYSTEM NEMA 1 ENCLOSED

SECTION LOW VOLTAGE ACTIVE HARMONIC FILTER SYSTEM NEMA 1 ENCLOSED SECTION 16280 LOW VOLTAGE ACTIVE HARMONIC FILTER SYSTEM NEMA 1 ENCLOSED PART 1 - GENERAL 1.1 SUMMARY This specification defines the requirements for active harmonic filter systems in order to meet IEEE-519-2014

More information

Placement Paper For Electrical

Placement Paper For Electrical Placement Paper For Electrical Q.1 The two windings of a transformer is (A) conductively linked. (B) inductively linked. (C) not linked at all. (D) electrically linked. Ans : B Q.2 A salient pole synchronous

More information

MV VFD Discussion MIA Detroit 2016

MV VFD Discussion MIA Detroit 2016 MV VFD Discussion MIA Detroit 2016 Tommy Eitenmiller Business Developer MV Drives Siemens Industry, Inc. Siemens Industry, Inc. 2016 All rights reserved. 1 Why VFDs According to the U.S. Department of

More information

ADJUSTABLE SPEED DRIVES VF-S11 Sords Electric

ADJUSTABLE SPEED DRIVES VF-S11 Sords Electric ADJUSTABLE SPEED DRIVES VF-S11 The Next Generation of Micro Inverters is Here. The S11 provides maximum torque with precise speed control. It features an easy-to-use, quiet and compact design. In addition,

More information

Lecture 19 - Single-phase square-wave inverter

Lecture 19 - Single-phase square-wave inverter Lecture 19 - Single-phase square-wave inverter 1. Introduction Inverter circuits supply AC voltage or current to a load from a DC supply. A DC source, often obtained from an AC-DC rectifier, is converted

More information

UNIT-III STATOR SIDE CONTROLLED INDUCTION MOTOR DRIVE

UNIT-III STATOR SIDE CONTROLLED INDUCTION MOTOR DRIVE UNIT-III STATOR SIDE CONTROLLED INDUCTION MOTOR DRIVE 3.1 STATOR VOLTAGE CONTROL The induction motor 'speed can be controlled by varying the stator voltage. This method of speed control is known as stator

More information

EE171. H.H. Sheikh Sultan Tower (0) Floor Corniche Street Abu Dhabi U.A.E

EE171. H.H. Sheikh Sultan Tower (0) Floor Corniche Street Abu Dhabi U.A.E EE171 Electrical Equipment & Control System: Electrical Maintenance Transformers, Motors, Variable Speed Drives, Generators, Circuit Breakers, Switchgears & Protective Systems H.H. Sheikh Sultan Tower

More information

User Guide Introduction. IRMCS3043 System Overview/Guide. International Rectifier s imotion Team. Table of Contents

User Guide Introduction. IRMCS3043 System Overview/Guide. International Rectifier s imotion Team. Table of Contents User Guide 08092 IRMCS3043 System Overview/Guide By International Rectifier s imotion Team Table of Contents IRMCS3043 System Overview/Guide... 1 Introduction... 1 IRMCF343 Application Circuit... 2 Power

More information

Variable Frequency Drive / Inverter (0.4 ~ 280kW)

Variable Frequency Drive / Inverter (0.4 ~ 280kW) Variable Frequency Drive / Inverter (0.4 ~ 280kW) & Standard Features Configuration Comparison Comparison Table Enclosure IP00 IP20 NEMA 1 Rating Single phase 0.4 2.2kW 0.4 1.5kW Three phase 0.4 4kW Constant

More information

TDE MACNO Spa. AC&DC Drives, Servos and Drive System. AFE converters for Renewable Energies Regenerative (active) power supply (Active Front End)

TDE MACNO Spa. AC&DC Drives, Servos and Drive System. AFE converters for Renewable Energies Regenerative (active) power supply (Active Front End) TDE MACNO Spa AC&DC Drives, Servos and Drive System AFE converters for Renewable Energies Regenerative (active) power supply (Active Front End) Automation and Control Systems OPENDRIVE EXP MINI OPENDRIVE

More information

The new Yaskawa Varispeed G7 Inverter

The new Yaskawa Varispeed G7 Inverter The new Yaskawa Varispeed G7 Inverter Unique new 3-level PWM flux vector Constant or variable torque applications control method 0.4 kw to 300 kw power range Exceptional low speed/high torque control Quick

More information

Development of Transformerless Multi-Level Medium Voltage Inverters

Development of Transformerless Multi-Level Medium Voltage Inverters New Technologies Development of Transformerless Multi-Level Medium Voltage Inverters Isamu Hasegawa, Shizunori Hamada, Kenji Kobori, Yutaka Shoji Keywords Multi-level inverter, PWM, Transformerless Abstract

More information

An induced emf is the negative of a changing magnetic field. Similarly, a self-induced emf would be found by

An induced emf is the negative of a changing magnetic field. Similarly, a self-induced emf would be found by This is a study guide for Exam 4. You are expected to understand and be able to answer mathematical questions on the following topics. Chapter 32 Self-Induction and Induction While a battery creates an

More information

APPLICATION GUIDE. Harmonics in HVAC applications

APPLICATION GUIDE. Harmonics in HVAC applications APPLICATION GUIDE Harmonics in HVAC applications Table of contents 4 Harmonics in general and why we should care 4 Introduction 4 Basics of harmonics 5 Causes of harmonic distortion 5 Problems caused

More information

Frequency Inverters. VF-nC3 VF-S11 VF-FS1 VF-PS1 VF-AS1

Frequency Inverters. VF-nC3 VF-S11 VF-FS1 VF-PS1 VF-AS1 Frequency Inverters VF-nC3 VF-S11 VF-FS1 VF-PS1 VF-AS1 VF-nC3 NanoDrive The compact class Toshiba frequency inverters are designed for the global market and are manufactured with the newest production

More information

PROGRAMMABLE AC POWER SOURCE MODEL 6500 SERIES MODEL 6500 SERIES. Programmable AC Power Source. Key Features:

PROGRAMMABLE AC POWER SOURCE MODEL 6500 SERIES MODEL 6500 SERIES. Programmable AC Power Source. Key Features: Programmable AC Power Source MODEL 6500 SERIES Key Features: PROGRAMMABLE AC POWER SOURCE MODEL 6500 SERIES The global AC power testing requirements demand more sophisticated AC Power Source that is capable

More information

How adjustable speed drives affect power distribution

How adjustable speed drives affect power distribution How adjustable speed drives affect power distribution Application Note Adjustable speed drives (ASDs) can be both a source and a victim of poor power quality. ASDs as victim loads Although ASDs are usually

More information

High Technology Control

High Technology Control High Technology Control Michael Linden ABB National Drives Manager for High Technology Control Pty Ltd High Technology Control Variable Frequency Drives Variable Voltage Variable Frequency Drives Variable

More information

Inverter Drive /Vector Drive Motors & Controls

Inverter Drive /Vector Drive Motors & Controls H2 Inverter/ Encoderless Vector Inverter Drive /Vector Drive & Controls 3/4 thru 50 180-264 VAC 3 Phase - 50/60 Hz 3/4 thru 60 340-528 VAC 3 Phase - 50/60 Hz 3/4 thru 60 515-660 VAC 3 Phase - 60 Hz HVAC

More information

Entry Level Assessment Blueprint Electronics Technology

Entry Level Assessment Blueprint Electronics Technology Blueprint Test Code: 4135 / Version: 01 Specific Competencies and Skills Tested in this Assessment: Safety Practices Demonstrate safe working procedures Explain the purpose of OSHA and how it promotes

More information

The SI unit of inductance is the henry, defined as:

The SI unit of inductance is the henry, defined as: Inductors A coil of wire, or solenoid, can be used in a circuit to store energy in the magnetic field. We define the inductance of a solenoid having N turns, length l and cross-section area A as: The SI

More information

CHAPTER-III MODELING AND IMPLEMENTATION OF PMBLDC MOTOR DRIVE

CHAPTER-III MODELING AND IMPLEMENTATION OF PMBLDC MOTOR DRIVE CHAPTER-III MODELING AND IMPLEMENTATION OF PMBLDC MOTOR DRIVE 3.1 GENERAL The PMBLDC motors used in low power applications (up to 5kW) are fed from a single-phase AC source through a diode bridge rectifier

More information

Power Quality Solutions

Power Quality Solutions Power Quality Solutions What is Power Quality? For electrical systems to function in their intended manner without significant loss of performance or life, they require a supply of electricity that is

More information

A NEW C-DUMP CONVERTER WITH POWER FACTOR CORRECTION FEATURE FOR BLDC DRIVE

A NEW C-DUMP CONVERTER WITH POWER FACTOR CORRECTION FEATURE FOR BLDC DRIVE International Journal of Electrical and Electronics Engineering Research (IJEEER) ISSN 2250-155X Vol. 3, Issue 3, Aug 2013, 59-70 TJPRC Pvt. Ltd. A NEW C-DUMP CONVERTER WITH POWER FACTOR CORRECTION FEATURE

More information

QUASAR PP & PPR RECTIFIERS

QUASAR PP & PPR RECTIFIERS 1 9 is a line of switch-mode rectifiers for surface treatment processes, electro-winning and water treatment, that adopts pulse width modulation (PWM) technique for the controlling of current amplitude.

More information