Temperature Rise Tests
|
|
- Arron Clark
- 6 years ago
- Views:
Transcription
1 Temperature Rise Tests Centre for Power Transformer Monitoring, Diagnostics and Life Management (transformerlife) Monash University, Australia Oleg Roizman IntellPower, Australia Valery Davydov Monash University Spring 2009 IEEE Transformers Committee Meeting Miami FL, 21 April 2009
2 Special Test Transformer Nameplate Data Year of Manufacture 2006 Rated Power HV/MV for ONAN, kva 468/468 Rated Voltage HV/MV/LV, kv 22/4.5/0.415 Rated Current HV/MV Amp 12.3/60.0 Cooling Types ONAN, ONAF, OFAF Number of Phases 3 Vector Symbol YNyn0yn0 Mass Untanking, kg 2420 Mass Each Cooler (excluding oil), kg 115 Mass Total (including oil), kg 6850 Insulating Oil Each Cooler, l 43 Insulating Oil Total, litre 2650 Oil Circulation, l/min 1200
3 Temperature Sensors and DAQ System 16 Fiber Optic sensors 24 Thermocouples, including magnetic and thermal ribbon types 9 RTDs, including those of moisture/temperature transmitters More than 60 channels of information stored at 1 min interval
4 Location of Thermocouples and RTDs in Test Transformer Top Oil Temperatures Top Core Yoke Temperatures Top Rings Temp Top Radiator Bottom Radiator
5 Location of Fibre Optic Probes and Core Thermocouples
6 Fibre Optic Probe Installation in MV Winding, Phase B
7 Fibre Optic Probe Installation in HV Winding
8 Effect of Measuring Instrumentation In the following 4 slides, comparisons are made for the two windings of Phase B (OFAF) MV (layer type) HV (disc type) The comparisons are made for results obtained during the Temperature Rise Tests conducted at Monash using two different instrumentation sets for winding resistance measurement
9 Comparison of Tavr and FO for MV OFAF Phase B, 100A 1st set of winding resistance measurement instrumentation was used Top wnd. temp Mid wnd. temp 55 T, deg C Avr wnd. T Bot wnd. T t, min FO12 MV top FO13 MV middle FO14 MV bottom θwm(i) as measured θw(i) as calculated
10 Comparison of Tavr and FO for HV OFAF Phase B, 100A 1st set of winding resistance measurement instrumentation was used Tawr 45 T, deg C t, min FO7 HV top FO9 HV middle FO11 HV bottom Measured average winding temperature Calculated average winding temperature
11 OFAF (100A) HV Phase B 2 nd set of winding resistance measurement instrumentation was used :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 0:20:10 0:23:02 Twarm Twarm fitted IEC 20mins Twarm fitted IEC 15mins Twarm fitted IEC 5mins Twarm fitted exp 5mins FO7 FO1 FO9
12 OFAF(100 A) MV Phase B 2 nd set of winding resistance measurement instrumentation was used T, deg C :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 0:20:10 0:23:02 Time since shut down (mins) Twarm Twarm fitted IEC 20mins Twarm fitted IEC 15mins Twarm fitted IEC 5mins Twarm fitted exp 5mins FO13 FO12 FO14 It could be seen that depending on duration of test variations in Twnd (R) is ~10 ºC
13 Blocked Coolers: 60A 90 Blocked Coolers 60 A Phase A Phase C Phase B T, degc ~4 hours! 70 7:12 8:24 9:36 10:48 12:00 13:12 14:24 15:36 16:48 18:00 19:12 FO6 FO15 FO16
14 Blocked Coolers: 60 A 2 nd set of winding resistance measurement instrumentation was used Ph A Blocked Cooling Tw = 5.521* exp(-time/ 4.331) * time Ph C Ph B T, degc :00 2:24 4:48 7:12 9:36 12:00 14:24 16:48 19:12 21:36 Twarm A Twarm fitted IEC (A) Twarm C Twarm fitted IEC Twarm B Twarm fitted IEC (B)
15 Blocked Coolers HV Phase B 60A hottest measured temp mid measured temp T, deg C Winding temp by resistance bottom measured temp :00 2:24 4:48 7:12 9:36 12:00 14:24 16:48 19:12 21:36 Time since shutdown (mins) Twarm FO7 FO9 FO11 (TV4+TV5)/2
16 ONAN(60A) HV phase B 2 nd set of winding resistance measurement instrumentation was used T, deg C :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 Time since shutdown (mins) Twarm Twarm fitted IEC 15mins Twarm fitted IEC 5mins Twarm fitted exp 5mins FO9 FO3 FO11
17 ONAN(60A) MV phase B 2 nd set of winding resistance measurement instrumentation was used T, deg C :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 Time since shutdown (mins) Twarm Twarm fitted IEC 15mins Twarm fitted IEC 5mins Twarm fitted exp 5mins FO12 FO13 FO14
18 Comparison of FO Data for Phases A, B & C In the following slide a comparison is made for Phases A, B and C for the HV (disc type) winding for the OFAF cooling mode The comparison is made for the measurements obtained during the Temperature Rise Tests conducted at Monash for the FO probes installed in the 2 nd top disc of Phases A, B & C The differences in the FO measurement results were observed due to the following reasons: Phase A is the most remote phase from the oil inlet pipe; the velocity of oil flow through the winding ducts of Phase A is the lowest Phase C is the closest phase to the oil inlet pipe; the velocity of oil flow through the winding ducts of Phase C is the highest Phase B is in the middle between the inlet pipe and Phase A
19 FO Sensors Data for Phases A, B and C OFAF (100A) 95 Phase A Phase B Temperature, deg C Phase C Cooling curves FO6 FO15 FO :24 9:36 10:48 12:00 13:12 14:24 15:36 16:48 18:00 Time, h:mm
20 Cooling Curves for A, B and C Phases, OFAF (100A), HV 90 2 nd set of winding resistance measurement instrumentation was used Phase B Phase C Phase A 85 Winding temperautre by R, deg C :00 2:24 4:48 7:12 9:36 12:00 14:24 16:48 19:12 21:36 Time since shutdown, min
21 Effect of first valid time point for MV in OFAF :45 min T, deg C :00 min :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 0:20:10 0:23:02 Time since shutdown (mins) Twarm Twarm fitted IEC 20mins (from 1m45s) Twarm fitted IEC 20mins (from 4m)
22 Factors Affecting Winding Temperature Rise Winding resistance measuring equipment Ambient temperature determination Inadequate calculation of the average oil temperature (leads to wrong g factor) Accuracy of Load Loss measurement Assumed total loss as sum of NL + LL Effect of the Core temperature dynamics Cold resistance measurement errors Not reaching steady state before shutdown
23 Factors Affecting Winding Temperature Rise (cont d) Connection circuit (two windings at a time) Time interval first and last data point resistance measurement Fitting curve method Ambient oil temperature consideration
24 Conclusions Depending on winding time constant taking first resistance measurement at 4 min may be too long wait and could lead to significant error in determination of winding temperature at shutdown 10 min cooling curve period could be well justified for small and medium distribution transformers, but does not seem to be adequate for large power transformers, where 20 min should be considered as more appropriate 15 sec acquisition rate was found to be easily achievable with the modern acquisition systems and is recommended, especially for a winding with a short time constant
25 Conclusions (Cont d) Considerations should be given to the following recommendations when FO sensors are used: a. Number and locations of FO temperature probes should be determined on the basis of analysis of heat and mass transfer with assistance of numerical methods such as FEM and CFD; b. Hot-spot temperature should be continuously measured by FO sensors installed in each winding of each phase and verified by calculations in accordance with the latest relevant standards and/or more detailed inhouse thermo-hydraulic models; c. Average winding temperature rise by resistance should be measured only in the winding of the phase with the highest hot-spot temperature found in b) unless the difference between that temperature and the average of all phases exceeds agreed value (e.g. 3 ºC).
Winding Temperature Measurement in a 154 kv Transformer Filled with Natural Ester Fluid
J Electr Eng Technol Vol. 8, No. 1: 156-162, 2013 http://dx.doi.org/10.5370/jeet.2013.8.1.156 ISSN(Print) 1975-0102 ISSN(Online) 2093-7423 Winding Temperature Measurement in a 154 kv Transformer Filled
More informationSiemens Transformer Technology Seminar Insulation & Thermal Design
Customer Technical Meeting Pomona, CA May 24 25, 2016 Siemens Transformer Technology Seminar Insulation & Thermal Design Siemens AG Transformers siemens.com/answers Winding Selection Windings: Page 2 Winding
More informationCurve accuracy (enough data points to be statistically significant): See Attachment B.
Curve accuracy (enough data points to be statistically significant): See Attachment B. /11.0 proposals Mar 2006.doc /11.0 proposals Mar 2006.doc ATTACHMENT A New Business By Subhash Tuli Waukesha Electric
More informationHOT SPOT STUDIES FOR SHEET WOUND TRANSFORMER WINDINGS
HOT SPOT STUDIES FOR SHEET WOUND TRANSFORMER WINDINGS Sheldon P. Kennedy, Thomas Gordner Niagara Transformer Jean-Noel Bérubé Qualitrol / Neoptix Robert Ringlee, Jacques Aubin Consultant ABSTRACT Application
More informationTransformer Winding Design. The Design and Performance of Circular Disc, Helical and Layer Windings for Power Transformer Applications
The Design and Performance of Circular Disc, Helical and Layer Windings for Power Transformer Applications Minnesota Power Systems Conference November 3 5, 2009 Earl Brown Heritage Center University of
More informationTransformer Technology Seminar What to consider at Design Reviews
Pomona CA, May 24-25, 2016 Transformer Technology Seminar Siemens AG Transformers siemens.com/answers Why to perform Design Review Meetings? To ensure both parties having the same understanding of the
More informationABB Power Products Service
Raben Naidoo, Technology days, May 21-22th, 2014, Cape Town, South Africa, Enhanced availability of transformers via transformer remote monitoring - TEC ABB Power Products Service Why a session on availability?
More informationPES & IAS NY Chapter And NY LMAG June 23 rd, 2015
PES & IAS NY Chapter And NY LMAG June 23 rd, 2015 High Temperature Insulation Systems and their use in Mobile Transformers Myron B. Bell, PE mbell@deltastar.com Delta Star, Inc. June 23 rd 2015 Introduction
More informationPower Transformers Basics
Power Transformers Basics Transformer Basic Objective Introduce Basic Transformer Theory as it Relates to Diagnostics Provide a Better Understanding of the Diagnostic Test Environment Identify Important
More informationProlific Systems & Technologies Pvt. Ltd. CORE DETAILS. CENTRE Figure - II L-2 X Y Wt-2
Plot No. A-267, MIDC, Road No. 6A, Opp. ESIS Hospital, Wagle Industrial Estate, Thane (West) - 400 604 CORE DETAILS Date: 4/2/206 Design No. mahati Step No. SIDES Figure - I B L- Wt- CENTRE Figure - II
More informationSUMMARY. PALAVRAS CHAVE Power Transformer, CFD, Hot spot, Winding, Temperature
VII WORKSPOT- International workshop on power transformers, equipment, substations and materials RIO DE JANEIRO, RJ NOVEMBER, 23-26, 2014 Hot Spot Determination in Transformer Windings through CFD Analysis
More informationDATA SHEET FOR LIGHTING TRANSFORMER APPD. BY VDV PROJECT NO
PART - A : SPECIFIC REQUIREMENTS THIS DATA SHEET IS APPLICABLE FOR IN BOILER A CLIMATIC CONDITIONS PACKAGE 1 DESIGN AMBIENT TEMPERATURE 45 C 2 ALTITUDE ( ABOVE MSL ) 6.71 MTRS. 3 RELATIVE HUMIDITY 74 %
More information1. Introduction. 3. Reasons for Investing in Dynamic Rating Dynamic rating is touted as a transformer management feature of value. Let us examine why.
Transformer Asset Management-Life Extension, Real Time Status and Enhanced Loading Potential Using State of the Art Monitoring Control and Communications. Author & Presenter: SL Braver BSc MBA Pr Eng-General
More informationTransformer Factory Testing
Transformer Factory Testing John J. Foschia Test Engineer John.Foschia@spx.com September 2018 Reasons for Testing Compliance with user specifications Assessment of quality and reliability Verification
More informationPCS Working Group on General Requirements C
WG Item 82 C57.12.00-2000 Section 7.1.4.4 Stabilizing windings Change Requested by : V. Sankar 5/07/2005 & 10/23/2006 Requested Change : Request to form a task force to discuss the following on buried
More informationKNOW MORE ABOUT THE TRANSFORMERS. Glossary Transformers
KNOW MORE ABOUT THE TRANSFORMERS Glossary Transformers Ambient temperature The existing temperature of the atmosphere surrounding a transformer installation. Ampere The practical unit of electric current.
More informationAS/NZS :2013 (IEC , , MOD)
AS/NZS 60076.7:2013 (IEC 60076-7, Ed. 1.0 2005, MOD) Australian/New Zealand Standard Power transformers Part 7: Loading guide for oil-immersed power transformers AS/NZS 60076.7:2013 AS/NZS 60076.7:2013
More informationThermal simulation of the Effect of Windings Arrangement in a Cooled Power Transformer
Thermal simulation of the Effect of Windings Arrangement in a Cooled Power Transformer 1ALEJANDRO ROBERTO TELLO CAMPOS, 1 WILLIAM VICENTE RODRÍGUEZ, 1 JOSÉ LUIS FERNÁNDEZ ZAYAS 1Instituto de Ingeniería
More informationOptimization of power transformers based on operative service conditions for improved performance
21, rue d Artois, F-75008 PARIS A2-207 CIGRE 2012 http : //www.cigre.org SUMMARY Optimization of power transformers based on operative service conditions for improved performance A.Prieto, M.Cuesto, P.Pacheco,
More informationThis document is a preview generated by EVS
IEC 60076-7 Edition 2.0 2018-01 REDLINE VERSION colour inside Power transformers Part 7: Loading guide for mineral-oil-immersed power transformers IEC 60076-7:2018-01 RLV(en) THIS PUBLICATION IS COPYRIGHT
More informationArild Furnes,ATPA OGP/Petrobras workshop, Dry type transformers-ideal for FPSO - Transformers for electrical and drive systems
Arild Furnes,ATPA OGP/Petrobras workshop, 22.09.09 Dry type transformers-ideal for FPSO - Transformers for electrical and drive systems September 24, 2009 Slide 1 Transformers for Ships and Offshore -
More informationCritical Conductor Temperatures in Submarine Cables Equipped with Protection Pipes
24 th Nordic Insulation Symposium on Materials, Components and Diagnostics 128 Critical Conductor Temperatures in Submarine Cables Equipped with Protection Pipes Rógvi Østerø, Joachim Holbøll Technical
More informationSOFT SENSOR FOR DISTRIBUTION TRANSFORMERS: THERMAL AND ELECTRICAL MODELS
SOFT SENSOR FOR DISTRIBUTION TRANSFORMERS: THERMAL AND ELECTRICAL MODELS Sami NAJAR Jean François TISSIER ITRON France sami.najar@itron.com jean-francois.tissier@itron.com Erik ETIEN Sébastien CAUET University
More informationOn-Load Tap Changer Type M
On-Load Tap Changer Type M OLTC type model M III 500 Y, U m = 123 Kv, 500A, ± 9 steps The type M On Load tap changers are used to vary the ratio of oil-immersed transformers under load.in general they
More informationMathematical Modeling of Disc Type Winding Of Transformer
Mathematical Modeling of Disc Type Winding Of Transformer Sandeep Patel R.G.P.V. BHOPAL ABSTRACT Power transformers are heart of electrical system network. Reliability and serviceability of power transformers
More informationSOUTHERN ELECTRICITY SUPPLY COMPANY OF ODISHA LIMITED (SOUTHCO UTILITY)
E -Tender Notice No. Annexure - VII SOUTHCO/DEPOSIT/3.15 & 5 MVA Power Transformer /02/2015 16 Dt. 02.03.2016 NAME OF THE WORK PROCUREMENT OF33/11 KV, 3.15 MVA & 5 MVA Power Transformer SUPPLIER INFORMATION
More informationNew prospects for power transformer winding thermal design optimisation using THNM and CFD simulations
21, rue d Artois, F-75008 PARIS http : //www.cigre.org Crowne-Plaza Le Palace Brussels, Belgium March 12-14, 2014 New prospects for power transformer winding thermal design optimisation using THNM and
More informationNUMERICAL STUDY ON MIXED CONVECTION AND THERMAL STREAKING IN POWER TRANSFORMER WINDINGS
NUMERICAL STUDY ON MIXED CONVECTION AND THERMAL STREAKING IN POWER TRANSFORMER WINDINGS Abstract E. J. Kranenborg 1, C. O. Olsson 1, B. R. Samuelsson 1, L-Å. Lundin 2, R. M. Missing 2 1 ABB Corporate Research,
More informationTESTING AND MEASURING EQUIPMENT/ALLOWED SUBCONTRACTING
IEC SYSTEM FO CONFOMITY TESTING AND CETIFICATION OF ELECTICAL COMMITTEE OF TESTING LABOATOIES TESTING AND MEASUING /ALLOWED SUBCONTACTING = equired by Lab S = May be subcontracted 10.1 Visual inspection
More informationRitz Instrument Transformers GmbH. Welcome
Ritz Instrument Transformers GmbH Welcome About Ritz together with over 200 years of experience in instrument transformer production since 1945 since 1945 since 1945 since 1904 RITZ Group - Organization
More informationIntroduction To Temperature Controllers
Introduction To Temperature Controllers The Miniature CN77000 is a full featured microprocessor-based controller in a 1/16 DIN package. How Can I Control My Process Temperature Accurately and Reliably?
More informationWDG 71 - Technical Data Sheet
HV 804 R WDG 71 - Technical Data Sheet FRAME HV 804 R SPECIFICATIONS & OPTIONS STANDARDS Cummins Generator Technologies industrial generators meet the requirements of BS EN 60034 and the relevant sections
More informationWDG 61 - Technical Data Sheet
HV 804 W WDG 61 - Technical Data Sheet FRAME HV 804 W SPECIFICATIONS & OPTIONS STANDARDS STAMFORD AC generators are designed to meet the performance requirements of IEC EN 60034-1. Other international
More informationINTERNATIONAL STANDARD
INTERNATIONAL STANDARD IEC 60076-7 First edition 2005-12 Power transformers Part 7: Loading guide for oil-immersed power transformers IEC 2005 Copyright - all rights reserved No part of this publication
More informationPower transformers for Network, Rectifiers, Furnace
E N G L I S H OTN, OTR, OTF Transformers Power transformers for Network, Rectifiers, Furnace TTR TTO OTN, OTR, OTF reactors TTH OTN, OTR, OTF Transformers Technology Design Our designers experience combined
More informationGroup F : Sl. No. - 1) 33/0.403 KV, 100 KVA Station Transformer GUARANTEED & OTHER TECHNICAL PARTICULARS. Table : A
Group F : No. - 1) 33/0.403 KV, 100 KVA Station Transformer GUARANTEED & OTHER TECHNICAL PARTICULARS Table : A No. Description 1. Make & Manufacturer 2. Place of Manufacturer 3. Voltage Ratio 4. Rating
More informationMiniature substations: What they are really capable of delivering
Miniature substations: What they are really capable of delivering by Rhett Kelly and Greg Whyte, ACTOM Medium Voltage Switchgear The latest edition of the South African national standard for miniature
More informationOvercurrent and Overload Protection of AC Machines and Power Transformers
Exercise 2 Overcurrent and Overload Protection of AC Machines and Power Transformers EXERCISE OBJECTIVE When you have completed this exercise, you will understand the relationship between the power rating
More informationWDG 13 - Technical Data Sheet
LV 804 T WDG 13 - Technical Data Sheet FRAME LV 804 T SPECIFICATIONS & OPTIONS STANDARDS Cummins Generator Technologies industrial generators meet the requirements of BS EN 60034 and the relevant sections
More informationPublished in: Proceedings of 3rd IEEE Conference on Industrial Electronics and Applications
Aalborg Universitet Investigation of Transformer Cooling Improvement Utilizing Online Monitoring System Shabazi, Bahie; Savaghebi, Mehdi; Ashouri, Mohammad; Vadiati, Maryam Published in: Proceedings of
More informationPI734F - Winding 07. Technical Data Sheet APPROVED DOCUMENT
- Winding 07 Technical Data Sheet SPECIFICATIONS & OPTIONS STANDARDS Stamford industrial generators meet the requirements of BS EN 34 and the relevant sections of other national and international standards
More informationElectrical Design Process
Electrical Design Process Jason Varnell Lead Design Engineer Jason.Varnell@spx.com SPX Transformer Solutions, Inc. September 26, 2018 Agenda 1. Bid Design Process Parameters Affecting Bid Design 2. Final
More informationWDG 83 - Technical Data Sheet
HV 804 R WDG 83 - Technical Data Sheet FRAME HV 804 R SPECIFICATIONS & OPTIONS STANDARDS STAMFORD AC generators are designed to meet the performance requirements of IEC EN 60034-1. Other international
More informationWDG 51 - Technical Data Sheet
MV 804 S WDG 51 - Technical Data Sheet FRAME MV 804 S SPECIFICATIONS & OPTIONS STANDARDS STAMFORD AC generators are designed to meet the performance requirements of IEC EN 60034-1. Other international
More information51-SDMS-04 SPECIFICATIONS FOR. DISTRIBUTION TRANSFORMERS UP TO 36 kv WITH ALUMINUM WINDINGS FOR DUAL SECONDARY 400/230 V AND 230/133 V
SPECIFICATIONS FOR DISTRIBUTION TRANSFORMERS UP TO 36 kv WITH ALUMINUM WINDINGS FOR DUAL SECONDARY 400/230 V AND 230/133 V This specification is property of SEC and subject to change or modification without
More informationPI734F - Winding 28. Technical Data Sheet APPROVED DOCUMENT
- Winding 28 Technical Data Sheet SPECIFICATIONS & OPTIONS STANDARDS Stamford industrial generators meet the requirements of BS EN 60034 and the relevant sections of other national and international standards
More informationPOWER SYSTEM ANALYSIS TADP 641 SETTING OF OVERCURRENT RELAYS
POWER SYSTEM ANALYSIS TADP 641 SETTING OF OVERCURRENT RELAYS Juan Manuel Gers, PhD Protection coordination principles Relay coordination is the process of selecting settings that will assure that the relays
More informationPI734E - Winding 312. Technical Data Sheet APPROVED DOCUMENT
- Winding 312 Technical Data Sheet SPECIFICATIONS & OPTIONS STANDARDS Stamford industrial generators meet the requirements of BS EN 60034 and the relevant sections of other national and international standards
More informationPI734C - Winding 312. Technical Data Sheet APPROVED DOCUMENT
- Winding 312 Technical Data Sheet SPECIFICATIONS & OPTIONS STANDARDS Stamford industrial generators meet the requirements of BS EN 60034 and the relevant sections of other national and international standards
More informationPI734B - Winding 312. Technical Data Sheet APPROVED DOCUMENT
- Winding 312 Technical Data Sheet SPECIFICATIONS & OPTIONS STANDARDS Stamford industrial generators meet the requirements of BS EN 60034 and the relevant sections of other national and international standards
More informationTechnical recommendation for the purchase of Real Time Thermal Rating for transformers
Version: 1.0 Date of Issue: December 2014 1 Technical recommendation for the purchase of Real Time Thermal Rating for transformers 1 Purpose The purpose of this document is to set out and describe the
More informationTransformer Protection Principles
Transformer Protection Principles 1. Introduction Transformers are a critical and expensive component of the power system. Due to the long lead time for repair of and replacement of transformers, a major
More informationNo. COA/BHL/2018/293 Dated: REQUEST FOR QUOTATIONS
College of Agriculture, Maharana Pratap University of Agriculture & Technology, Bhilwara-311001 (Rajasthan) Phone: 01482-246118 (O), Email: coabhilwara@gmail.com, No. COA/BHL/2018/293 Dated: 07.06.2018
More informationPOWER TRANSFORMER SPECIFICATION, DESIGN, QUALITY CONTROL AND TESTING 18 MARCH 2009
POWER TRANSFORMER SPECIFICATION, DESIGN, QUALITY CONTROL AND TESTING 18 MARCH 2009 Nkosinathi Buthelezi Senior Consultant: Power Transformers and Reactors Presentation Content Standardization of Power
More informationOutput performance: Analogue output accuracy check. Pulse output accuracy check.
An insight into the reasons for verification: Confidence in ongoing performance, regulatory requirements, maintaining process quality. Calibration: The comparison of measurement values delivered by a device
More informationManual Supplement. This supplement contains information necessary to ensure the accuracy of the above manual.
Manual Title: 5502E Getting Started Supplement Issue: 3 Part Number: 4155211 Issue Date: 9/18 Print Date: November 2012 Page Count: 12 Revision/Date: This supplement contains information necessary to ensure
More informationPhase Shifting Transformers. Presented by
Phase Shifting Transformers Presented by Phase Shifting Transformers (PST s) (a.k.a. Phase Angle Regulators) VS φ S P V V S = X L L X L sin( φ φ ) L S VL φ L PST s are power flow control devices between
More informationThe Effect of PV on Transformer Ageing: University of Queensland s Experience
Australasian Universities Power Engineering Conference, AUPEC 214, Perth, WA, Australia, 28 September 1 October 214 1 The Effect of PV on Transformer Ageing: University of Queensland s Experience D. Martin,
More informationRegional Technical Seminar SHORT CIRCUIT FORCES
Regional Technical Seminar SHORT CIRCUIT FORCES Short Circuit Forces Wallace Exum Electrical Design Engineer wallace.exum@spx.com Agenda 1. What is Short Circuit 2. Types of Faults 3. How to Calculate
More informationS4L1S-D4 Wdg.17 - Technical Data Sheet
- Technical Data Sheet Standards STAMFORD industrial alternators meet the requirements of the relevant parts of the BS EN 60034 and the relevant section of other international standards such as BS5000,
More informationWDG 12 - Technical Data Sheet
LV 804 T WDG 12 - Technical Data Sheet FRAME LV 804 T SPECIFICATIONS & OPTIONS STANDARDS Cummins Generator Technologies industrial generators meet the requirements of BS EN 60034 and the relevant sections
More informationS4L1D-G41 Wdg Technical Data Sheet
- Technical Data Sheet Standards Stamford industrial alternators meet the requirements of the relevant parts of the BS EN 60034 and the relevant section of other international standards such as BS5000,
More informationUse of fibre sensors for temperature measurement in subsea infrastructure to monitor flow-loop cooldown
Journal of Physics: Conference Series Use of fibre sensors for temperature measurement in subsea infrastructure to monitor flow-loop cooldown To cite this article: D M Faichnie et al 2009 J. Phys.: Conf.
More informationAutomatic Transformer Winding Analyser
2293 Automatic Transformer Winding Analyser The 2293 is an automatic winding analyser, optimized for three phase power and distribution transformer measurements. It uniquely combines winding resistance
More informationLSA R & LSA H 49.1 Low Voltage Alternators - 4 pole
LSA R & LSA H 49.1 Low Voltage Alternators - 4 pole 30 to 30 kva - 0 Hz / 420 to 63 kva - 60 Hz Electrical and mechanical data Adapted to applications LSA R and LSA H alternators are enclosed alternators
More informationDirect Measurement of Transformer Winding Hot Spot Temperature and its Significance
Direct Measurement of Transformer Winding Hot Spot Temperature and its Significance Binaya Kumar Sahoo Department of Electrical, Fluor Daniel India Pvt Limited, Gurgaon, India ABSTRACT: One of the most
More informationChapter 3. Experimental set up. 3.1 General
Chapter 3 Experimental set up 3.1 General Experimental set up and various swirl flow generators such as full length twisted tapes, increasing and decreasing order of twist ratio sets and full length screw
More informationWDG 12 - Technical Data Sheet
LV 804 S WDG 12 - Technical Data Sheet FRAME LV 804 S SPECIFICATIONS & OPTIONS STANDARDS Cummins Generator Technologies industrial generators meet the requirements of BS EN 60034 and the relevant sections
More informationMotor Protection. May 31, Tom Ernst GE Grid Solutions
Motor Protection May 31, 2017 Tom Ernst GE Grid Solutions Motor Relay Zone of Protection -Electrical Faults -Abnormal Conditions -Thermal Overloads -Mechanical Failure 2 Setting of the motor protection
More informationAPPENDIX 4 TYPICAL LAYOUT, VALUES AND CONSTANTS
109 APPENDIX 4 TYPICAL LAYOUT, VALUES AND CONSTANTS TYPICAL LAYOUT The purpose of a transformer is to transfer energy from the input to the output through the magnetic field. The layout of a partial typical
More informationManual Supplement. This supplement contains information necessary to ensure the accuracy of the above manual.
Manual Title: 550A Getting Started Supplement Issue: Part Number: 415509 Issue Date: 9/18 Print Date: November 01 Page Count: 19 Revision/Date: This supplement contains information necessary to ensure
More informationElectrical Description
History of this Document Rev. no.: Date: Description of change 0 First edition 2 2003-10-08 Section 3: The rated power of the transformer can be increased by 40% if they are equipped with 6 fans for forced
More informationProtecting power transformers from common adverse conditions
Protecting power transformers from common adverse conditions by Ali Kazemi, and Casper Labuschagne, Schweitzer Engineering Laboratories Power transformers of various size and configuration are used throughout
More informationANALYSIS OF OIL FLOW DISTRIBUTION IN POWER TRANSFORMER WINDING COOLING DUCTS USING TEMPERATURE MEASUREMENTS
HEFAT2012 9 th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics 16 18 July 2012 Malta ANALYSIS OF OIL FLOW DISTRIBUTION IN POWER TRANSFORMER WINDING COOLING DUCTS USING TEMPERATURE
More informationWDG 07 - Technical Data Sheet
LV 804 S WDG 07 - Technical Data Sheet FRAME LV 804 S SPECIFICATIONS & OPTIONS STANDARDS Cummins Generator Technologies industrial generators meet the requirements of BS EN 60034 and the relevant sections
More informationPUBLIC POWER CORPORATION ENGINEERING & CONSTRUCTION OF TRANSMISSION PROJECTS DEPARTMENT
PUBLIC POWER CORPORATION ENGINEERING & CONSTRUCTION OF TRANSMISSION PROJECTS DEPARTMENT SPECIFICATION SS-25 / 14 POWER TRANSFORMERS 150/15.75-21kV, 40/50 MVA WITH AUTOMATIC LOAD-RATIO CONTROL CONNECTION
More informationWDG 12 - Technical Data Sheet
LV 804 R WDG 12 - Technical Data Sheet FRAME LV 804 R SPECIFICATIONS & OPTIONS STANDARDS STAMFORD AC generators are designed to meet the performance requirements of IEC EN 60034-1. Other international
More informationWDG 12 - Technical Data Sheet
LV 804 W WDG 12 - Technical Data Sheet FRAME LV 804 W SPECIFICATIONS & OPTIONS STANDARDS STAMFORD AC generators are designed to meet the performance requirements of IEC EN 60034-1. Other international
More informationsave energy, it is precious SYNERGY transformers Mfg. of all types of Distribution / Power & Furnace Transformers
save energy, it is precious Mfg. of all types of Distribution / Power & Furnace Transformers SYNERGY transformers SAFETY AND EFFICIENCY, COMBINED WITH LONG-TERM RELIABILITY, ARE THE HALLMARKS OF WORLD-RENOWNED
More informationSKS C 120 GDD 69/11 A3A MA B1C
SKS C 12 GDD 69/11 A3A MA B1C Absolute maximum ratings 1) Symbol Conditions Values Unit I IN MAX Maximum permanent input current (4Q only) 1 2 A RMS I OUT MAX Maximum permanent output current 2 4 A RMS
More informationEffects of Harmonic Distortion I
Effects of Harmonic Distortion I Harmonic currents produced by nonlinear loads are injected back into the supply systems. These currents can interact adversely with a wide range of power system equipment,
More informationSPECIFICATION FOR STEP UP TRANSFORMER 0.415/11Kv and (630KVA & 1000KVA)
SPECIFICATION FOR STEP UP TRANSFORMER 0.415/11Kv and (630KVA & 1000KVA) 0.415/33kV DESIGN AND CONSTRUCTION General 1. The transformer shall be three phase, oil immersed type, air cooled, core type, outdoor
More informationSKS B2 120 GDD 69/11 - A11 MA PB
Absolute maximum ratings 1) Symbol Conditions Values Unit I IN/OUT MAX Maximum permanent input/output current 1 2 A RMS V IN/OUT MAX Maximum output voltage 76 V AC V BUS MAX Maximum DC Bus voltage 1 2
More informationR&D TECHNICAL SPECIFI
INTRODUCTION Present document defines technical specs of a three phase UPS covering the power range from 20 to 30 kva ON-LINE DOUBLE CONVERSION Uninterruptible Power Supply Systems with forced ventilation
More informationSMART TEMPERATURE TRANSMITTERS. smar
SMART TEMPERATURE TRANSMITTERS FEATURES Single unit accepts signal from: - Standart RTDs and Thermocouples - Single ended or differential sensing - mv signals from radiation pyrometers, load cells, etc.
More informationPM734D - Winding 312. Technical Data Sheet APPROVED DOCUMENT. Generator Solutions AS
PM734D - Winding 312 Technical Data Sheet PM734D SPECIFICATIONS & OPTIONS STANDARDS Marine generators may be certified to Lloyds, DnV, Bureau Veritas, ABS, Germanischer-Lloyd or RINA. Other standards and
More informationPM734F - Winding 312. Technical Data Sheet APPROVED DOCUMENT
PM734F - Winding 312 Technical Data Sheet PM734F SPECIFICATIONS & OPTIONS STANDARDS Marine generators may be certified to Lloyds, DnV, Bureau Veritas, ABS, Germanischer-Lloyd or RINA. Other standards and
More informationSirius 250/350 Watts, Single / Multi output AC-DC, modular power solution
Up to 350W Up to 6 outputs Voltages up to 28V, Current up to 50 mps Fast-on output connection Worldwide approvals 3 Year Warranty Sirius 250/350 Watts, Single / Multi output C-DC, modular power solution
More informationBasic principles and operation of a transformer
Basic principles and operation of a transformer Seminar paper for course Distribution and industrial networks Andrea Ljubljanac Mentor: professor Grega Bizjak Ljubljana, March 2018 TABLE OF CONTENTS 1
More informationSKS C 240 GDD 69/11 A6A MA B1C
Absolute maximum ratings Symbol Conditions Values Unit I IN MAX Maximum permanent input current 2 4 A RMS I OUT MAX Maximum permanent output current 2 4 A RMS V IN MAX Maximum input voltage 76 V AC VOUT
More informationDatasheet (Preliminary) Modular Inverter System VARIS XT Datasheet VARIS XT
Datasheet (Preliminary) Modular Inverter System VARIS XT-14-12 Individual circuit arrangement Hard- and soft paralleling possible Water cooling 24150µF capacitance per module Current, voltage and temperature
More information51-SDMS-02 SPECIFICATIONS FOR DISTRIBUTION TRANSFORMERS UP TO 36KV 400/230 VOLTS
SPECIFICATIONS FOR DISTRIBUTION TRANSFORMERS UP TO 36KV 400/230 VOLTS This specification is property of SEC and Subject to change or modification without any notice Table of Contents Clause Page 1.0 SCOPE
More informationTransformer Monitoring Module
B025D201-00.INDD Edition 07/2005 a-eberle Transformer Monitoring Module Software-Version 2.07 A. Eberle GmbH & Co. KG A. Eberle GmbH & Co. KG 2 Contents 1 Basics of the Transformer Monitoring Module...
More informationDatasheet. Modular Inverter System VARIS Datasheet VARIS
Datasheet Modular Inverter System VARIS -10-17 Individual circuit arrangement Water or forced air cooled 2740µF capacitance per module Optical or electrical signal transmission Current and temperature
More informationALTERNATOR TECHNICAL DESCRIPTION 1. LSA 53.2 XL13 / 4p. Chargé d'affaire : Karthikeyan GN 1 Moteurs Leroy-Somer +33 (0) xx
ALTERNATOR TECHNICAL DESCRIPTION LSA 53.2 XL3 / 4p LS Reference: 3_66 Date: 426 V4.5G 9/26 Chargé d'affaire : Karthikeyan GN Moteurs LeroySomer +33 ()2 38 6 42 xx Electric Power Generation Orleans prenom.nom@leroysomer.com
More informationImprove asset protection and utilization
QUALITROL 509 ITM Intelligent transformer monitor Improve asset protection and utilization Immediately know your transformer health with TransLife Optimize loading and equipment life Simplify root cause
More informationParasitically Powered Digital Input
EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. General Description The is an IEC 61131-2 compliant, industrial digital input (DI) device that translates a 24V digital
More informationPI734C - Technical Data Sheet
PI734C - Technical Data Sheet PI734C SPECIFICATIONS & OPTIONS STANDARDS Newage Stamford industrial generators meet the requirements of BS EN 60034 and the relevant sections of other national and international
More informationCompact Substation or Prefabricated Substation Inside Totally Enclosed Weatherproof Enclosure COPYRIGHT REGISTERED
Dial : (033)2677-5835 & 2667-8358 Tele Fax : (033)2667-8358 Manufacturer of Dry Type Transformers E-mail : unimag111@gmail.com Office & Factory : 26/5, Sarat Chatterjee Road, Howrah 711 104, West Bengal,
More information