Transducing electrical quantities Iskra MIS d.d. Measuring Transducers. Features

Transcription

1 Measuring Transducers Transducing electrical quantities Iskra MIS d.d. Measuring Transducers Features AC, DC POWER SYSTEM MEASUREMENT MICROPROCESSOR CONTROL HOUSING FOR DIN RAIL MOUNTING IN COMPLIANCE WITH EN PROGRAMMABLE VOLTAGE RANGE PROGRAMMABLE CURRENT RANGE PROGRAMMABLE ANALOGUE SERIAL COMMUNICATION RS232/RS485 (OPTION) UP TO THREE ELECTRICALLY ISOLATED ANALOGUE S UNIVERSAL AUXILIARY POWER SUPPLY (OPTION) ACCURACY CLASS 0.5 (FREQUENCY TRANSDUCER 0.2) CURRENT S ELECTRICALLY ISOLATED FROM THE SYSTEM S, SERIAL COMMUNICATION, AUXILIARY POWER SUPPLY, CURRENT AND VOLTAGE S GALVANICALLY SEPARATED (SOME MODELS)

2 Description Digital technology, on which measuring transducers are built, enables them, with corresponding software, to adapt to different input and output quantities. Input quantities, for energy measuring transducers, of phase voltage can be set within the range from 50 to 500 V and currents from 0.2 to 5 A. Values of analogue outputs can also be set within the range from 1 to 20 ma for current and from 1 to 10 V for voltage. Input-output characteristics can be created with five breaking spots for unipolar and bipolar output signals. The accuracy class of measuring transducers is 0.5, except for frequency, where accuracy class is 0.2. MISET Software / Features - Configuring and setting software - Full instrument setup capability - Displays data in real time - Windows compatible - User friendly The above stated versions of measuring transducers can be provided with the RS232 or RS485 communication for connection to the network. The MODBUS communication protocol is used with bit rate from 1,200 to 115,200 bit/s. A measuring transducer with three electrically isolated bipolar analogue outputs (MI400) is the most capable version. Outputs can be software adapted to any measured quantity (voltage, current, power, power factor, frequency) for a phase or for a complete system value. The transducer is supplied with a universal supply module within the range from 24 to 300 V DC or 40 to 276 V AC voltage. Beside AC measuring transducers we produce also DC programmable measuring transducers for conversion of DC current and voltage, resistance and temperature into appropirate DC current or voltage signals. Their analogue output signal is proportional to the measured value and it is appropriate for regulation of analogue and digital devices. Input quantities for DC measuring transducers can vary from 50 mv to 300 V for voltage and from 1 ma to 1 A (up to 7.5 A as special version) for current. Output values are similar to output values of AC measuring transducers. Accuracy class for both (current and voltage) DC measuring transducer is 0.5. MISET Software / Application MISET software is created for configuring and setting of all the instruments with serial communication port (RS232 or RS485) connected in your power network. Devices must be connected to the computer via RS232 communication port (one device, or up to 32 devices connected in network via RS485/RS232 communication converter). With MISET software you can set any parameter of your device, such as input values and transformer ratios, type and value of output and its characteristic, address, communication speed. It also displays measured values in numerical format and in table form. PC software MISET is user friendly and involves help function to simplify the work. MISET Software / System requirements - Windows 95, 98, Millennium, 2000, XP, NT MB available disk space - VGA monitor - Min. 32 MB of RAM - CD drive - RS232 communication port Measuring quantities - AC voltage and current - RMS AC voltage and current - Active and reactive power - Frequency - Power factor - Resistance - DC voltage and current - Temperature - TAP position

3 Differences between measuring transducers Our measuring transducers can be divided into two groups: MI400 multifunctional measuring transducer and all the others. MI400 is the most powerful multifunctional measuring transducer. It supervises simultaneously any 3 values of an electrical system. It has the capability of measuring more than 50 different electrical quantities such as: TRMS values of voltage, current, kw, kvar, kva, PF, Hz, MD, THD etc in one instrument. All values are available via communication port for monitoring on the PC. It can have up to three configurable analogue outputs, which are programmable. Programmable are also CT and VT ratios. All the other measuring transducers compose group MI4xx (4xx greater than 400). Each measuring transducer in this group is tailored for measuring one electrical quantity. In the table below you can see which functionality is covered by which instrument and instrument's input and output values. Input quantity Programmable Active power Reactive power Power factor transducer transducer transducer measuring TYPE MI400 MI413 MI414 MI421 Class With auxiliary power supply Measuring principle Microprocessor control Measuring range -Pn Pn -Pn Pn -Qn Qn Cap Ind. -Qn Qn 0...Pn 0...Qn Sn Sn Cap Ind Hz Un In Input voltage Un V Nominal voltage Programmable range Input current In A Nominal current Programmable range Nominal frequency 50/60 Hz Consumption/Input Voltage circuit: U 2 /3 MΩ Current circuit: Ι 2 x 0.01 Ω resistance Overload capability Range selection Numbers of analogue outputs Current nominal values 1.5 Un; 2 In 57, 100, 110, 230, 400, 500 V AC, ± 20%, Hz 3 VA Universal auxiliary power supply V DC V AC Programmable range over communication, at placing order 0, 1, 2 and ma...0 (0.2)...1 ma -5 ma...0 (1)...5 ma -10 ma...0 (2)...10 ma -20 ma...0 (4)...20 ma -1 V V, -10 V V Yes (Optional)- Voltage nom. values Harmonic analysis Maximum Demand Yes - Communication RS232 or RS485 RS232, RS485 (optional) Residual ripple < 1 % p.p. on nominal current Response time < 300 ms Burden max. I output 5 ma 3 kω, 10 ma 1.5 kω, min. U output 20 ma 750 Ω, 10 V 500 Ω Working temperature C Storage temperature C Climatic class 3 according to EN General technical data Protection system: IP 50, terminals IP20, according to EN 60529, 1989 Characteristic curves Dimensions A, B, C, D A = 100 mm, B = 75 mm, C = mm

4 Input quantity 3 x AC - 3 x AC - Frequency Voltage Current TYPE MI436 MI438 MI420 Class With auxiliary power supply Measuring principle Microprocessor control Measuring range V to V 0..6 A, 1 A, 5 A 40 to 70 Hz Input voltage 500 V programmable, V Nominal voltage 57.74, 63.5, 100, 110, 230, 250, 400, 500 V fixed configuration Input current Nominal current Nominal frequency 50/60 Hz 6 A programmable 1 A, 5 A fixed configuration Hz Hz Hz Hz Consumption / Input U 2 / 3 MΩ I Ω < 0.5 VA resistance Overload capability 1.2 Un 2 In 1.2 Un Universal auxiliary power supply 57, 100, 110, 230, 400, V DC, V AC, Hz, < 3 VA 500 V AC, ±20%, Universal auxiliary power supply V DC V AC Range selection Programmable range over communication, at placing order Number of analogue outputs 3 1 Current nominal values 0 (0.2)...1 ma 5 ma, 20 ma 0 (1)...5 ma programmable 10 ma fixed configuration 5 ma, 10 ma, 20 ma, 0 (4)...20 ma ma fixed ma fixed configuration Voltage nom. values V to V 10 V programmable, fixed Harmonic analysis Yes (Optional)- Maximum Demand - Yes (thermal function)- Communication RS232, RS485 (optional) Residual ripple on < 1% p.p. nominal current Response time < 300 ms Burden max. I output 5 ma 3 kω, 10 ma 1.5 kω, 20 ma 750 Ω, 10 V 500 Ω min. U output Working temperature C C Storage temperature -40 to +70 C C Climatic class 3 according to EN according to EN General technical data Protection system: IP 50, terminals IP20, according to EN 60529, 1989 Characteristic curves A, B A, B, D Dimensions A = 100 mm, B = 75 mm, A = 44.8 mm, B = 75 mm, C = mm C = mm

5 Input quantity AC - Voltage AC - Current RMS RMS AC - Voltage AC - Current TYPE MI406 MI408 MI416 MI418 Class 0.5 Without auxiliary power supply With auxiliary power supply Measuring principle Rectifier method Microprocessor control Measuring range Un 0...In Un In Input voltage Un to V Un V to V programmable range Nominal voltage 57.74, 63.5, 100, 57.74, 63.5, 100, 110, 250, 500 V 110, 230, 250, 400, 500 V Input current In A to A In 0..6 A programmable range Nominal current 1 A, 5 A In 1 A, 5 A fixed configuration Nominal frequency 50/60 Hz Consumption / Input < 2 VA < 2 VA < 0.5 VA < 0.5 VA resistance Overload capability 1.2 Un 2 In 1.2 Un 2 In 57, 100, 110, 230, 400, 500 V AC, ± 20 %, from measuring circuit Hz 3 VA Universal auxiliary power supply V DC, V AC Range selection At placing order Programmable range over communication, at placing order Number of analogue outputs 1 Current nominal values ma 0 (0.2)...1 ma ma 0 (1)...5 ma ma 0 (2)...10 ma 0 (4)...20 ma Voltage nom. values V, V Harmonic analysis - Yes (Optional) Maximum Demand - Communication - RS232, RS485 (optional) Residual ripple on nominal current < 1% p.p. Response time < 300 ms Burden max. I output 5 ma 3 kω, 10 ma 1.5 kω, 5 ma 3 kω, 10 ma 1.5 kω, min. U output 20 ma 750 Ω 20 ma 750 Ω, 10 V 500 Ω Working temperature C Storage temperature C Climatic class 3 according to EN General technical data Protection system: IP 50, terminals IP20, according to EN 60529, 1989 Characteristic curves A A, B, D Dimensions A = 44.8 mm, B = 75 mm, C = mm

6 Input quantity Temperature Resistance Potenciometer & Pt 100 TAP position TYPE MI450 MI452 MI454 Class 0.5 With auxiliary power supply Measuring principle Microprocessor control Measuring range Ω to kω 0...Rn Ω to kΩ Un < 2.2 V R0 Rn...R0 Un < 2.2 V Input value -200 C +850 C for Pt Rn Ω - 50 kω Rn 100 Ω to 500 kω -60 C +250 C for Ni Ω kω programmable 20 Ω to 10 kω for programmable polinom programmable Nominal value 0 to 100, 0 to 250, Rn 100, 1 k, 2 k, 5 k, Rn 100, 1 k, 2 k, 5 k, 10 k -100 to 800 C for Pt 10 k, 20 k, 50 kω fixed 20 k, 50 k, 100 k, 200 k, 0 to 100, 0 to 180, Rn 5 k, 10 k, 50 k, 100 k, 500 kω 0-linear -50 to 150 C for Ni 200 k, 500 kω fixed Rn 300, 1 k, 2 k, 5 k, 10 k, fixed configuration 20 k, 50 k, 100 k, 200 k, 500 kω 10 steps (both fixed configuartion) Nominal frequency - Consumption / Input resistance < 0.5 VA 57, 100, 110, 230, 400, 500 V AC, ± 20 %, Universal auxiliary power supply: V DC, V AC Range selection Programmable range over communication, at placing order Number of analogue 1 outputs Current nominal (0.2)...1 ma 0 (0.2)...1 ma values (1)...5 ma 0 (1)...5 ma (4)...20 ma 0 (4)...20 ma Voltage nom. values V, V V, V Harmonic analysis - Maximum Demand - Communication RS232, RS485 (optional) Residual ripple on < 1 % p.p. nominal current Response time Programmable 0.5 s to 60 s Burden max. I output min. U output 5 ma 3 kω, 10 ma 1.5 kω, 20 ma 750 Ω, 10 V 500 Ω Working temperature C Storage temperature C Climatic class 2 according to EN General technical Protection system: IP 50, terminals IP20, according to EN 60529, 1989 data Characteristic curves A, B, C, D A Dimensions A = 44.8 mm, B = 75 mm, C = mm

7 Input quantity DC - DC - RS232 to Voltage Current RS485 TYPE MI456 MI458 MI485 Class With auxiliary power supply Measuring principle Microprocessor control - Measuring range 0...Un 0...In RS485 -Un 0...Un -In 0...In Bit rate to bit/s Input value Un mv 1 V In ma V ma V programmable programmable Nominal input Un 50, 100, 500 mv, In 1, 1.5, 2, 2.5, 4, 5, 6, 1 V fixed 10 ma fixed 1.5, 2, 2.5, 4, 5, 6, In 15, 20, 25, 40, 50, 10, 15, 20, 25, 40, 60, 100 ma fixed 50 V fixed 60, 100, 150, 200, 250, 400 V fixed Nominal frequency DC - Consumption / < 0.5 VA < 0.5 VA Input resistance Overload capability 1.2 Un 2 In - 57, 100, 110, 230, 400, 500 V AC, ± 20 %, Hz 3 VA Universal auxiliary power supply V DC V AC Range selection Programmable range over communication RS232 at placing order Electrically isolated Number of analogue 1 Terminals or SUB D outputs connector Current nominal -1 ma...0 (0.2)...1 ma Indication values -5 ma...0 (1)...5 ma communication with -20 ma...0 (4)...20 ma LED Diode Voltage nom. values -1V V, -10V V Harmonic analysis - Maximum Demand - Communication RS232, RS485 (optional)- Residual ripple on < 1% p.p. - nominal current Response time Programmable 0.5s to 3s - Burden max. I output min. U output 5 ma 3 kω, 10 ma 1.5 kω, 20 ma 750 Ω, 10 V 500 Ω - Working temperature C Storage temperature C Climatic class 3 according to EN General technical data Protection system: IP50, terminals IP20, according to EN 60529, 1989 Characteristic curves A, B, C, D - Dimensions A = 44.8 mm, B = 75 mm, C = mm Note: Transducers according to EN , EN

8 Characteristic curves a) linear characteristic b) up to 5 break points c) zoom absolute value d) zoom Case dimensions Ordering info Ordering informations for each transducer are available in technical leaflets. Version 2, September 2004