220kV power grid protection and comprehensive solution

(Fire and Explosion-Proof Capacitors)

ZF28-420 type GIS is composed of standard modules through flanged joint, which can meet the demand for substation optimization design through the flexible combination between modules.

Description

Proposition/Advantages

Application Scenarios

Description

Petrochemical enterprises have numerous motor loads and vast oilfield areas, necessitating additional equipment to enhance power quality. Reactive power compensation equipment, by compensating inductive reactive power with its own capacitive reactive power system, can improve power factor, increase motor output, and reduce grid losses.

Proposition/Advantages

01

Outstanding GIS Layout

The GIS phase spacing is 670mm and the standard spacing width is 2050mm (see layout). The whole interval of three-phase integrated transportation, its technological innovation level is domestic leading, international advanced level.
02

Convenient Maintenance

Arrangement of circuit breaker is horizontal, it’s convenient for overhauling and emergency maintenance; it also will make lighter impact to the ground.
03

Low Insulation Discharge Level

Excellent insulation level and low partial discharge. The only company in the industry that can achieve: under 1.2 times phase voltage (1.2×420/√3 = 291kV), the partial discharge of intervals is lower than 5pC, the partial discharge of the insulator is lower than 3pC.
04

Flange Double Ring Sealing

Flange surface adopts double sealing ring structure, inner ring sealing gas, and its gas leakage rate is lower than IEC standard. Its outer ring prevents water and impurities from getting inside thus to improve safety and reliability.