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Provide restricted earth fault protection
Apply high impedance principles for transformer windings, reactors and stator windings to ensure dependable operation.
Why Reyrolle 7PG23?
Reyrolle 7PG23 delivers high-impedance restricted earth fault protection for transformers, reactors and large machine windings. Its robust design ensures sensitive fault detection and stability during external disturbances.
- Single-phase voltage-operated relay for high impedance schemes
- User-selectable voltage settings from 15 V to 270 V
- Integral non-linear resistor for overvoltage limitation
Key benefits
Improve fault security with high sensitivity
Detect internal earth faults quickly while maintaining stability under through-fault conditions to protect critical assets.
Simplify configuration with flexible settings
Select operating voltage easily using DIL switches and optional resistors for tailored protection across diverse applications.
Extend equipment life with robust design
Benefit from proven electro-mechanical construction and integral voltage limiting to withstand harsh electrical conditions.
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Configure voltage settings with precision
Adjust settings from 15 V to 270 V in 5 V steps using front-mounted switches for accurate scheme calibration.
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Limit overvoltages during system faults
Use integral non-linear resistors to protect CT insulation and secondary wiring from transient overvoltages.
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High impedance restricted earth fault
The 7PG23 electro-mechanical single-phase circulating current relay detects earth faults in high impedance protection schemes. It's commonly used in transformer protection for restricted earth fault protection.