The automatic capacitance and inductance tester 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.
Due to the adoption of synchronous sampling technology for standard capacitors and capacitors under test, it is not affected by power supply voltage fluctuations; moreover, the measurement process is fully automatic
, avoiding errors caused by manual operation, thus it has the characteristics of good stability, good repeatability, accuracy and reliability.
Main Functions
“Technical Measures for Preventing Capacitor Device Accidents” stipulates: For high-voltage shunt capacitor sections, the capacitance of individual capacitors in capacitor banks should be measured regularly, and it is recommended to use a measurement method without disconnecting the connecting wires to avoid faults such as oil leakage from the bushing due to stress caused by disassembling and assembling connecting wires.
It is specially developed for the problems existing when measuring the capacitance value of individual capacitors in shunt capacitor banks and SCV devices at substation sites. It has the following functions:
* Measure the capacitance of individual or entire bank of shunt and collective capacitors without disconnecting wires.
* Measure the inductance of reactors and line traps without disconnecting wires.
* Measure the entrance capacitance of transformers and generator entrance capacitance without disconnecting wires.
* Has the function of measuring parallel (discharge) resistance value.
* Can compensate for the problem of low fault detection rate caused by low output voltage of capacitance meters.
* Simultaneously display voltage and current waveforms and phase, and calculate the power loss of the capacitor under test.
Working Principle
The automatic capacitance and inductance tester, due to the adoption of synchronous sampling technology for standard capacitors and capacitors under test, is not affected by power supply voltage fluctuations; in addition, the measurement process is fully automatic, avoiding errors caused by manual operation, thus it has the characteristics of good stability, good repeatability, accuracy and reliability.
