Hv Transformer Neutral Grounding Protection Single Grounding Fault Compensation System

Arc Suppression Coil

Arc suppression coils are used for capacitive current compensation during earth faults in electric networks. They are to be connected between the transformer neutral point and the ground.

There are six parameters needed to specify if inquiry arc suppression coil
1. Rated voltage line to neutral or system voltage.
2. Rated capacity or power of arc suppression coil and grounding transformer(if required)
Formula: ASC capacity+ (secondary capacity of grounding transformer)=Primary capacity of grounding transformer
3. Rated "duration time", 2 hours max.
4. Compensation current range
5. Quantity of zero-sequency CT
5. Application environment, indoor or outdoor.
6. Enclosure material (only for dry type), ss plate or normal cold rolled sheet

Adjust range: 0~100% rated current
Voltage range: 6~66KV
Duration time: 2 hours Max.

All Mingrui arc suppression coil are designed, rated, manufactured and tested in strict compliance with IEEC60076-6. Routine tests performed on each arc suppression coil are insulation resistance test, winding resistance measurement, applied voltage test, transformer oil withstanding voltage test and HV characteristic test. Mingrui's internal quality system has been developed and certified under ISO 9001 quality system

1. IPC system, multilayer PCB, stable system operation
2. Color LCD with data display, set and query function
3. Auto measure system voltage and displacement voltage etc, Auto
Trace and compensate
4. Compensate range: 0~100% of rated current
5. Inside inserted grounding fault detector and the fault feeder could
Be detected and switched off quickly
6. RS232 & RS485 communication interface
7. With standard printing interface and print timely and grounding
Information
8. Grounding wave is recorded and could display on any other
Computer without driver installation
9. Max. 1000 grounding information could be stored