Transformer Tester / Inductance Tester Parameters Automatic Capacitance Bridge / Inductance Tester Parameters



Product Application:



It is specially developed under the guidance of the expert working group for reactive power compensation devices, aiming at the problems existing in on-site measurement of individual capacitor capacitance in shunt capacitor banks at substations. It focuses on solving the following problems:



(1) On-site measurement of individual capacitors requires removing connecting wires, which not only increases workload but also easily damages capacitors;



(2) The low output voltage of capacitance meters leads to low fault detection rate.



(3) Measuring the inductance of reactors. This instrument features small measurement workload, quick and simple operation, stable performance, accurate measurement, and high fault detection rate.



In addition, its current measurement unit can also be used for measuring electrical equipment such as CVT and surge arresters, providing multi-functionality in one instrument.



Technical Parameters:



1. Capacitance range: 0.2μF~2,000μF;



Capacity range: 5~20,000 kvar;



Measurement accuracy: ±1.5%×reading ±2 digits;



Resolution: ±1.0%rdg;



2. Inductance range: 1mH~9.99H; Measurement accuracy: ±1.5%±2 digits



3. Output measurement voltage: AC 26V/500VA; 50Hz;



4. Display: Large-screen LCD with full Chinese output, TPμp-40 panel-type thermal printer



5. Dimensions and weight: 370×370×220 mm / 8 kg



6. Operating conditions:



Ambient temperature: 0℃ ~ +40℃, Relative humidity: ≤90%



Power supply: AC 220V±10%; 50Hz;



Measurement range, resolution, and error values































Capacitance measurement range:

Error value:

0.020μF ~ 0.200μF

±0.5%

0.200μF ~ 2.000μF

±0.5%

2.000μF ~ 20.00μF

±0.5%

20.00μF ~ 200.0μF

±0.5%

200.0μF ~ 2000.μF

±0.5%






























Capacitor reactive power

0 ~ 20.00Mvar

Error value

±1%

Capacitor active power

0 ~ 20.00kW

Error value

±1%

Capacitor dissipation factor

0 ~ 20.00%

Error value

±1%

Capacitor resistance component

0 ~ 10.00MΩ

Error value

±1%


























Inductance measurement range

Error value

0.10mH ~ 0.200H

±0.5%

2.000H ~ 20.00H

±0.5%

20.00H ~ 200.0H

±0.5%

200.0H ~ 2000.H

±0.5%






























Inductor reactive power

0 ~ 20.00Mvar

Error value

±1%

Inductor active power

0 ~ 20.00kW

Error value

±1%

Inductor dissipation factor

0 ~ 20.00%

Error value

±1%

Inductor resistance component

0 ~ 10.00MΩ

Error value

±1%


Clamp sensor measurement range and error (component)















Current measurement range (AC)

Error value

0.000mA ~ 50.00A

±0.2%



 


Product Features:



(1) Automatic range conversion;



(2) Stores 2000 test data;



(3) Large-screen LCD (320×240 LCD) display, Chinese menu operation prompts;



(4) Realizes simultaneous display of waveform and measurement data on the same screen, making the test process more intuitive;



(5) Has setting, calibration, and debugging functions.



 It features small measurement workload, quick and simple operation, stable performance, accurate measurement, and high fault detection rate; it can also measure the inductance of reactors, discharge resistance measurement function, measure the current and capacitance of coupling capacitors under live conditions, calculate the capacity of the measured capacitance; simultaneously display voltage and current waveforms and phase; automatic range conversion, data storage; large-screen LCD display, Chinese output, and printing capability.



Working Principle:



Due to the use of synchronous sampling technology for standard capacitors and tested capacitors, it is not affected by power supply voltage fluctuations; moreover, the measurement process is fully automatic, avoiding errors caused by manual operation, thus featuring good stability, repeatability, accuracy, and reliability.