Reactive power compensation capacitors are important devices that satisfy the reactive power balance of the power system. In recent years, the issue of reactive Power Supplies has received universal attention from the electric power industry. Reactive power compensation equipment has been put into distribution network operations. Power Supply requires real-time balance of active and reactive power in the system. Therefore, the reactive power compensation device should meet the requirements of automatic tracking and real-time compensation, which inevitably requires frequent casting and cutting of reactive power compensation capacitor banks. The investment and cutting operations of the capacitor bank will produce over-current and over-voltage surges, causing damage to the capacitors.
In order to ensure the reliability of the equipment, early detection of capacitor defects, to avoid the expansion of the fault, the need for regular testing. In the field, the capacitors are grouped in parallel. The traditional method is to remove the capacitor bus, and then use an old capacitor meter to measure. Since the capacitor bank is composed of dozens to hundreds of small capacitors, it is necessary to remove the line to measure the capacitance. A large amount, and often stitches will make the screw slippery or not tight and leave security risks, but also easily lead to secondary damage to the capacitor. Therefore, it is very desirable to have a test apparatus that can measure the capacitance of each small capacitor without disconnecting wires, reduce the burden on maintenance personnel, improve the efficiency of maintenance work, and improve the safety of distribution network operation.
It is possible to measure the single-phase capacitance of a group of shunt capacitors or three-phase capacitors of various combinations and types while measuring the inductance of various reactors without disconnecting the wire. The instrument can also measure the power frequency. Current, the instrument is easy to connect, simple operation, reducing the workload of maintenance personnel, greatly improving the efficiency of the test site, providing security for the normal operation of the power grid.
Features
1. The three-phase capacitance inductance tester can test three-phase capacitors at the same time when measuring three-phase capacitors, which eliminates the cumbersome process of repeatedly removing wires and wiring.
2. The instrument can measure the single-phase capacitance of the shunt capacitor and measure the three-phase capacitance of various connection types without removing the wire. At the same time, the instrument can also measure the inductance of various reactors. It can also be done. It is used for the power frequency current tester. It can be used for one machine, and it can meet the multiple use of the site.
3. When measuring, the instrument can display the measured voltage, current, power, frequency, impedance, phase angle and other data while measuring the capacitance or inductance value, so as to better analyze the quality of the test sample;
4, the instrument uses a 240 × 128 large screen with backlight LCD display, day and night can be clearly observed, the Chinese menu prompts, easy to operate;
5, comes with high-speed micro thermal printer: printable measurement and historical data;
6, the instrument built-in large-capacity non-volatile memory: can store 50 sets of measurement data;
7, the instrument built-in high-precision real-time clock function: date and time calibration;
Technical Parameters
1, the output voltage: ~ 2V, ~ 20V
2, measuring range: capacitance: 2uF ~ 2000uF
Inductance: 1mH～10H
Current: 50mA-～10A
Voltage: 0-～25V
3, measurement accuracy: capacitance: ± (1% + 2 words)
Inductance: ± (1% + 5 words)
Current: ± (1% + 2 words)
Voltage: ± (1% + 2 words)
4、Working power: AC220V±10%
5, the power frequency: 50 ± 1Hz
6, the instrument power: 200W
7, the ambient temperature: -10 °C ~ 50 °C
8, the ambient humidity: ≤ 85% RH
9, the instrument weight: 8kg
10, external dimensions: 350mm × 230mm × 190mm
November 19, 2020
