Indoor Power ZN85 40.5KV High Voltage Vacuum Circuit Breaker IEC56

Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker

General

VT12(ZN85)-40.5 Series indoor AC HV vacuum breaker is mainly used in three phase AC 50Hz, rated voltage 40.5kV power system as opening and closing the load current, overload current as well as short-circuit current. It is suitable for protecting and controlling electric appliances for industrial and mining enterprise, power plant and substation in places with different load and frequency operation.

1. Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker  Environmental Condition

• Altitude:not exceed 1000m
• Ambient temperature:not higher than +40°C, not less than -15°C
• Relative humidity:daily average relative humidity:≤95%;monthly average relative humidity≤90%;daily average saturated vapor pressure ≤2.2KPa;monthly average value ≤1.8KPa
• Earthquake intensity:≤8 degree
• The installation should be free from fire,explosion,severe vibration,chemical corrosion and serious pollution

2. Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker Technical Data

3. Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker  Application

35 kv 36kv 33kv zn85 vacuum circuit breaker , three phase AC 50HZ. Apply to industrial and mining enterprises, power plants and substations as the division and load current, overload current fault current purposes, particularly suitable for occasions of frequent operation.

4. Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker Advantages

• Adopt the most advanced and effetive arc extinguishing principle, has strong breaking capability and long service life.
• The electric circuit and operating mechanism for the upper and lower layout, the integration and modular design make the structure more compact.
• Reliable interlock function will prevent various kinds of misoperation effectively.
• With composite insulation, is not affected by the external environment, and insulation level is high.

5. Indoor Power Zn85 40.5kv High Voltage Vacuum Circuit Breaker Iec56 Structure Introduction

Circuit breaker at upper and composite insulation structure, effectively reducing the size of the circuit breaker. The main part of the circuit breaker (ie leading electrical circuit section) using closed structure, the main circuit components are mounted on a tubular insulating tube, insulation tube using an epoxy resin APG process from casting, so it is particularly anti-creepage.

This design greatly reduces dust accumulation in the surface of the interrupter, not only to prevent a vacuum interrupter receive the impact of external factors, but also to ensure that even under severe hot and humid and dirty environment, but also on the effect of showing a high voltage impedance state.