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Stator Earth Fault Protection For Generators By 20HZ Injection Method
Specifications
| Alarm | PFC contact |
|---|---|
| Cooling | Passively Cooled |
| Output Current | 5A continuously |
| Output Frequency | 20Hz +5% |
Key Features
- Detectsstator earth faults when the generator is offline
- Low-cost unit with high performance
Product Description
Stator Earth Fault Protection For Generators By 20HZ Injection Method is based on a sub-harmonic injection principle. To implement a 100 % stator earth fault protection system a 20Hz current is injected into the generator star point. The 20Hz generator SGEN-1001 is used in combination with the Band Pass Filter SBPF-1001 in the Stator Earth fault protection. The injection can be performed by connecting the SGEN-1001 and the SBPF-1001 to the load resistor of an earthing or neutral transformer. If an earth fault occurs in the generator star point, the 20Hz current flows through the fault resistance. From the driving voltage and the fault current, the protective relay determines the fault resistance.
- Plug and Play System
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Frequently Asked Questions
The output frequency is 20Hz with a tolerance of +5%.
It can output a continuous current of 5A.
It operates by injecting a 20Hz current into the generator star point, allowing the protective relay to determine fault resistance during an earth fault.
This model is passively cooled.
The unit features a PFC contact alarm.
The injection can be performed by connecting the SGEN-1001 and the SBPF-1001 to the load resistor of an earthing or neutral transformer.
It is based on a sub-harmonic injection principle.
Yes, it is designed as a plug and play system.
The protection system requires the SGEN-1001 generator and the SBPF-1001 band pass filter.
It is intended for detecting stator earth faults when the generator is offline.
The 20Hz injection method is used for implementing a 100% stator earth fault protection system.
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