Gw8 Series High Voltage 72.5kv 126kv Outdoor Neutral Point Isolating Switch

Product Description

Company Profile

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.

Product Description

The isolation switch is composed of a pillar insulator, an insulating insulator insulator and a conductive part. The upper part of the pillar insulator is provided with a static contact and a connecting plate connecting a bus bar. A metal base, an operating crank arm and an operating insulator are arranged between the supporting insulator and the insulating bottle base. The base is equipped with a knife, CS8-5 manual operating mechanism through the connecting rod, operating insulators, crutches and inter-million connection, can also be equipped with CJ6 electric mechanism.

 

Product Parameters

Item			Unit	GW8-72.5                                               GW8-126
Rated voltage			KV	72.5			126
Rated current			A	400, 630, 1250			400, 630, 1250
Rated short-time withstand current			KA	8, 20, 31.5			8, 20, 31.5
Rated peak withstand current			KA	20, 50, 80			20, 50, 80
1min power frequency withstand voltage(valid)			KV	140			230
Lightning impulse withstand voltage (peak)			KV	325			450
Mechanical life			Time	2000			2000
Min. insulation gap after switching			mm	>675			>1050
Main circuit resistance			fxQ	<180			<200
Equipped mechanism				Cs17 (or) CJ6, CK7, Cs14
Unpolar weight			Kg	160			200

Structure Diagram

GW8

1. GW8 Isolating Switch       2. Joint            3. 32 water gas pipe  
4. Insulation rod                    5. Joint            6. CJ6 electric operating mechanism

 

Service Environment

1. Altitude: below 2000m;
2. Ambient air temperature :-25ºC~+40ºC;
3. Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%;
4. The surrounding air should be free from corrosive or flammable gases, water vapor and other obvious pollution;
5. No frequent violent shaking.

Main Features

1. The isolation switch adopts the double-column center opening and contact turn-in structure, which has the ability of self-cleaning contacts and improves the contact reliability;
2. The rotating part of the isolation switch is designed to be maintenance-free. The rotating seat is designed as a sealed structure, water vapor, dust, harmful gases can not enter, so that the bearing, the second molybdenum lithium base lithium base grease will always work in a good environment, the shaft garlic does not rust, the grease can not be lost, never dry solid, so that the kneading torque after long-term operation of the isolation switch will not increase. Stainless steel shaft pin and oil-free self-lubricating bearing matching structure;
3. The steel parts are hot-dip galvanized to ensure that the isolation switch is flexible, lightweight, reliable and never rusted.

Packaging & Shipping

Certifications