The Integrated Over-Voltage Protector is a new type of protection device designed for electrical equipment in power systems up to 35kV, including transformers, switches, and shunt compensation capacitors. It effectively limits over-voltage caused by atmospheric conditions and vacuum circuit breaker operations, providing protection against both phase-to-phase and phase-to-earth over-voltages.
This protector consists of four surge arresters, enabling comprehensive protection between phases and ground. Through the clever integration of six arresters into a single unit, it overcomes the limitation of traditional designs—where simply connecting three arresters together fails to protect against single-phase over-voltage.
TBP-O Series (Electromotor Neutral point Type)
| Rated voltage of protector (rms)(kV) | Rated voltage of electromotor (rms)(kV) | Residual voltage of 8/20μs lightning impulse current (Peak)(kV) | DC(U1mA)Ref.voltage (Peak)(kV) |
|---|---|---|---|
| 4.8 | 6.3 | 12 | 6.8 |
| 8 | 10.5 | 19 | 11.4 |
TBP-A Series (Motor Type) 10kV
| Electromotor Rated voltage(kV) (Virtual Value) | Virtual value | 6.3 | 10.5 |
| Protector Rated voltage(kV) | 7.6 | 12.7 | |
| Power frequency discharge voltage (≥kV) | 15.0 | 25.0 | |
| DC(U1mA) Ref.Voltage (≥kV) | Peak | 11.2 | 29.0 |
| 1.2/50μs impulse discharge voltage (≤kV) | 17.0 | 18.6 | |
| Residual voltage of 100A operating impulse current (≤kV) | 13.6 | 29.0 | |
| Residual voltage of 500A lightning impulse current (≤kV) | 17.0 | 23.0 | |
| Square wave impulse current (A) | 400 | 400.0 | |
| Safe net distance (≥mm) | 95 | 120.0 | |
| Surface creepage distance (≥mm) | 140 | 235.0 | |
| Min.phase to phase distance (mm) | 115 | 145.0 | |
TBP-B Series (Vacuum circuit breaker, switch Type)
TBP-C Series (Capacitor Type)
Operating Conditions
Suitable for both indoor and outdoor;
Ambient temperature is -40°C to 40°C;
Altitude: ≤ 2500m;
Power frequency: between 48Hz and 62Hz;
Wind speed: ≤ 35m/s;
Earthquake intensity does not exceed 7 degrees;
Long-term operation voltage should not exceed the continuous operation voltage.
