Gis High Voltage 72.5kv Gas Insulated Switchgear Outdoor Equipment

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.

New generation of GIS which is equipped with spring operated

mechanism was developed in 1998. Its arc extinguishing chamber adopts the semi-self energized interrupting principle, adapting gas blast pressure to GIS's breaking current.

 

In 2001, ZF23-126 type GIS equipped with a complete spring operated mechanism was developed, using dual gas chambers to extinguish the arc by way of self -energization.

In 2005, the equipment passed all required type tests and the national-level appraisals.

 

1. Indoor/outdoor ;
2. Ambient air temperature :-30ºC~+40ºC;
3. Altitude: does not exceed 1000m;
4. Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;
5. The magnitude of the earthquake was no more than 8 degrees;
6. No fire, explosion, serious pollution, chemical corrosion and violent vibration.
7. Wind speed: no more than 35m/s.

1. Small unit size, light weight, excellent anti-seismic performance;
2. Reliable conductivity;
3. High reliability of insulation;
4. Excellent SF6 gas systems and sealing technology;
5. High breaking capacity;
6. Satisfying the needs of smart grid;
7. Use of standardized, modular design and production.

The GIS is featured by three-pole-in-one enclosure (except incoming line bushing and and outgoing line bushing). The main components include the Circuit Breaker(CB), three-position Disconnector/ Earthing Switch(DES), Fault-making Earthing Switch, Current Transformer(CT), Voltage Transformer(VT), Lightning Arrestor(LA), incoming/outgoing components( Gas-Air Bushing(BSG), Cable Sealing End(CSE), Oil-Gas Bushing (Oil-Gas BSG), Busbar (BUS)(includes main busbar and branch busbar), Local Control Panel (LCP), etc. All bays can be arranged with the standard components. In power circuit, the conductors for CB are arranged in shape of "straight line", the conductors of other components are arranged in the shape of"regular triangle" in the enclosure. Spring contact is used between conductors for transitting connection.