Automatic Capacitance and Inductance Tester
DARUI Electric recommends
Adopting a bridge circuit structure, the standard capacitor and the tested capacitor serve as the two arms of the bridge circuit. When measuring the capacitance value of a capacitor, close the test switch K, and the test voltage is applied to both the standard capacitor and the tested capacitor simultaneously. The processor collects the current signals flowing through both via sensors and processes them to obtain the capacitance value and resistive component of the tested capacitor.
Product Application:
It is specially developed under the guidance of the expert group of reactive power compensation devices, targeting the problems existing in on-site measurement of the capacitance value of individual capacitors in shunt capacitor banks. It focuses on solving the following problems:
(1) On-site measurement of a single capacitor requires removing connecting wires, which is not only heavy workload but also easy to damage the capacitor;
(2) The low output voltage of the capacitance meter leads to low fault detection rate.
(3) Measuring the inductance of reactors. This instrument has the characteristics of small measurement workload, fast 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 lightning arresters, providing multi-functionality in one device.
Automatic Capacitance and Inductance Tester Main Features
(1) Automatic range conversion;
(2) Storage of 2000 test data;
(3) Large screen LCD (320×240 LCD) display, Chinese menu operation prompts;
(4) Realize simultaneous display of waveform and measurement processing data on the same screen, making the test process more intuitive;
(5) With setting, calibration, and debugging functions.
It has the characteristics of small measurement workload, fast 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 with printing.
Due to the adoption of synchronous sampling technology for standard capacitors and tested capacitors, it 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
Automatic Capacitance and Inductance Tester Working Principle:
Due to the adoption of synchronous sampling technology for standard capacitors and tested capacitors, it 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.
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 mode: Large screen LCD display with full Chinese output, TPμp-40 panel-type thermal printer
5. Dimensions and weight: 370×370×220 mm/ 8 kg
6. Working conditions:
Ambient temperature: 0℃ ~+40℃, relative humidity: ≤90%
Power supply: AC 220V±10%; 50Hz;
Note: The above information and technical parameters are compiled and released by Yangzhou DARUI Electric Co., Ltd.
