MSXB-F-1000kVA 500kVVariable frequency resonance

This device is primarily designed and manufactured for AC withstand voltage testing of 35kV, 110kV, and 220kV cables, 110kV and 220kV switches, transformers, insulators, and the neutral point of 220kV main transformers and the line ends of 110kV main transformers.

It has a wide range of applications and is an ideal withstand voltage testing equipment for high-voltage testing departments at the provincial, municipal, and county levels, as well as power installation and maintenance engineering units. The device mainly consists of a variable frequency power supply, excitation transformer, reactor, capacitive voltage divider, and compensation capacitor.
1. 220kV and below circuit breakers, PTs, CTs, and insulators: Test frequency 30-300Hz, test voltage 500kV, test time 1min
2. 110kV/630mm² cable 1km ≤0.201uF: Test frequency 30-300Hz, test voltage 128kV, test time 60min
3. 110kV and below circuit breakers, PTs, CTs, and insulators: Test frequency 30-300Hz, test voltage 270kV, test time 1min
4. 110kV main transformer line end, capacitance ≤0.015uF: Test frequency 45-65Hz, test voltage 160kV, test time 1min
5. 220kV/300mm² cable 0.5km, capacitance ≤0.086uF: Test frequency 30-300Hz, test time 60min
6. 35kV/630mm² cable 3km, capacitance ≤0.76uF: Test frequency 30-300Hz, test voltage 52kV, test time 60min
1. It has protection functions such as overvoltage, overcurrent, zero-position start, and system detuning (flashover).
2. The weight and volume of the equipment are 1/30 of ordinary testing devices. The power required for testing is only 1/Q of the test capacity. 3. The device has three operating modes: fully automatic mode, manual mode, and automatic tuning manual boost mode.
4. Data storage and printing: Stored data is numbered digitally, making it easy for users to identify and retrieve.
5. When the device performs automatic frequency sweeping, the starting frequency can be set arbitrarily within the specified range.
6. DSP platform technology: Functions can be added or removed and upgraded according to user needs, resulting in a more user-friendly human-machine interface.
7. Improved output voltage waveform.
8. Prevents large short-circuit currents from damaging fault points.
9. No recovery overvoltage will occur.