Handheld Three-Phase Capacitance Inductance Tester

Handheld three-phase capacitor and inductance testers are crucial equipment for achieving reactive power balance in power systems. Their widespread deployment in distribution networks ensures real-time balance between active and reactive power. These testers must meet the requirements of automatic tracking and real-time compensation, inevitably necessitating frequent switching on and off . This switching generates overcurrent and overvoltage surges, potentially damaging capacitors. To ensure equipment reliability, detect capacitor defects early, and prevent escalation, regular inspections are necessary. The capacitor and inductance tester is specifically designed for measuring capacitors and reactors in reactive power compensation systems.
This instrument uses a high-precision, large-aperture clamp-on current transformer for current measurement and employs a heterogeneous anti-interference power supply output. It boasts high testing accuracy and stable data , making it a high-performance dedicated compensation capacitor and inductance tester.

Technical parameters

Resolution: 4 significant digits.
Main unit dimensions: 235mm × 165mm × 75mm
Main unit weight: 1.6kg

Usage conditions

• It features a high-brightness 7-inch color LCD screen with clear display, a user-friendly interface, and good visibility in sunlight.
• The instrument can measure the capacitors of a three-phase capacitor bank with a single connection without disconnecting the wiring.
• The instrument also has inductance, resistance and current measurement functions.
• The instrument has comprehensive overcurrent protection.
• It has a built-in large-capacity non-volatile memory that can store 512 sets of data , and supports retrieval and export .
• It has a built-in high-precision clock that displays the time in real time.
• It has USB flash drive storage function.
• Equipped with a built-in thermal printer , users can print measurement results themselves using the print button, and historical test data can also be printed using the printer.
• It integrates an RS232 interface and Bluetooth for convenient data uploading and control.
• Variable frequency power supply output (55Hz) : The instrument uses a variable frequency power supply output for testing, which greatly improves the anti-interference capability on site and allows testing in high-intensity magnetic fields without affecting accuracy. The variable frequency power supply adopts advanced inverter technology and has soft start and soft stop functions, which greatly reduces the impact on the test sample and better protects the test sample. At the same time, the power supply output adopts an advanced PID regulation algorithm for constant current and voltage limiting output, which further enhances the accuracy and stability of the measurement, and the output short circuit will not damage the instrument.

The reactive power compensation equipment testing in the distribution network is used for the periodic inspection of capacitor banks and reactors in the distribution network to detect equipment defects in advance and avoid the expansion of faults caused by switching shocks.
On-site live/online testing of power facilities can complete the measurement of three-phase capacitor banks without disconnecting the wires, making it suitable for strong electromagnetic interference environments such as substations and power distribution rooms.
Three-phase/single-phase electrical component testing covers three-phase Y/△/YN/III type wiring test samples, as well as precise measurement of single-phase capacitance, inductance, resistance, and current.
Current quality analysis involves separately detecting the fundamental frequency, total harmonic distortion, and harmonic content of the current to perform a simplified power quality analysis.
The power equipment operation and maintenance archive supports data storage, export, and printing, meeting the needs of substation equipment operation and maintenance and test data retention.