Medium Voltage Switchboard, Electric Switch, 27.5V Outdoor Air Insulated Switchgear for Power Grid/ Subway

Medium Voltage Switchboard, Electric Switch, 27.5V Outdoor Air Insulated Switchgear for Power Grid/ Subway image

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Basic Info.

Number of Poles

Three Pole

Grounding

Single Ground

Series

Two

Run

Vertical Rotation

Switching Mode

Single Throw-in

Common Model

Structure of Operating

Electric

Certification

ISO, GS, RoHS, CE, IS9001, ISO9001, ISO9002

Brand

Cpepe, Tungwell

Transport Package

Standard Export Package

Trademark

CPEPE, TUNGWELL

Origin

China

Production Capacity

50000PCS/Year

Product Description

Important Features

Product, supportor and other exposed metals adopt hot galvanizing and epoxy powder coating treatment for outdoor use. The product has superior anti-corrosion and can be used for a long time at outside.
Cylindrical poles of CB adopt design of solid insulation. After cleaning and dryness, vacuum interrupters should be poured into silicone rubber as a buffer layer, and then solidified with epoxy resin through pressure, and finally poured with hydrophobic silicone rubber with umbrella skirt from outside. This design can make that cylindrical poles have excellent ability to withstand short-circuit and strong bending resistance.
Creepage distance of cylindrical poles: 1450mm (to earth), 1650mm (between the top terminal and bottom terminal), have strong ability to resist dirtiness.
The circuit breaker uses long-run validation operation mechanism with frequent operation, and electrical life is more than 20000 times.
Breaking capacity of circuit breaker is strong, short-circuit breaking current is 31.5A (30 times).
Insulation degree is high, and the product can adapt to 3000 meters above sea level.

Technical Specification

ZW-1X27.5, 2X27.5kV Outdoor VCB

No.	Item		Unit	Specification
1	Rated Voltage		Kv	2×27.5				27.5
2	Rated Insulation Level		Kv	Between Phase	Phase To Earth	Isolation Across	Isolation Across
		1min Power Frequency Withstand Voltage		180	122	95	95
		Lighting Impulse Withstand Voltage (Peak)		420	260	200	200
3	Rated Frequency		Hz	50				50
4	Rated Current		A	1250, 1600, 2000, 2500				1250,1600 2000,2500
5	Rated Short–Circuit Breaking Current (Effective Value)		kA	25, 31.5				25, 31.5
6	DC Component Of Rated Short–Circuit Breaking Current (Percentage)			≤42%				≤42%
7	Rated Short-Circuit Making Current (Peak)		kA	63, 80				63,80
8	Rated Peak Withstand Current		kA	80				80
9	Rated Short-Time Withstand Current			31.5				31.5
10	Duration Of Rated Short-Circuit Current		s	4				4
11	Rated Short-Circuit Breaking Current Breaking Times		times	30				30
12	Braking Time		ms	≤50				≤50
13	Arcing Time			≤15				≤15
14	Mechanical Life		times	20000				20000
15	Rated Operating Sequence			O-0.3s -CO-180s-CO				O-0.3s -CO-180s-CO
16	Magnitude Of Partial Discharge (Applied Voltage 52.6kv, Measuring Voltage 44.6kv)		pC	<10
17	Degree Of Protection			IP45				IP45

Changzhou Pacific Electric Power Equipment (Group) Co., Ltd is a high-tech enterprise in research, design, manufacture, market and service in High Voltage and Low Voltage power transmission and distribution industry.

Established in 1989 and organized as a comprehensive power solution group company in 1997. The company has a registered capital over USD 20 million and fixed assets over USD 100 million. The company is located in the center manufacturing zone of China, near to Shanghai city, occupies a total area of 240,000 square meters. The annual production capacity is over 20,000 sets of high and low voltage switchgears and 3,000MVA different kinds of transformers. The products are widely used in the area of high-speed railways, subway, city tram, petrochemical, metallurgy, power substation, power plants, high-rise buildings etc.

With the strong manufacturing backgrounds over the decades, Changzhou Pacific Electric Power Engineering Co., Ltd (hereinafter CPEPE/TUNGWELL) was founded for group oversea’ market, as well as supply chain management services. Now, CPEPE/TUNGWELL is a leading distributor of China famous power components, equipment and materials. We serve the construction industries, the commercial, and government market, and utility markets. CPEPE/TUNGWELL products and services support constructions, infrastructures, building renovation, facility maintenance, repair and operations, and original equipment manufacturing.

Today, CPEPE/TUNGWELL stands as a large supplier of power equipment and engineering, target for one stop solutions for power industries.

Workshops & Production Lines

Subway Industry
Typical Projects: Shenzhen Metro, Changsha Metro, Nanning Metro, Changsha Metro, Foshan Metro, Shijiazhuang Metro, Hefei Metro, Xi’an Metro, Chengdu Metro, Nanjing Metro, Chongqing Metro, Tianjin Metro, Changzhou Metro, Xuzhou Metro, Suzhou Metro, etc.

Petrochemical Industry
Typical Projects: Jiangsu Hengli Chemical Fiber, Jiangsu Jurong Petrochemical, Hengli Petrochemical, Juxian Synthetic Materials, Juhua Group, Qinghai Salt Lake Haina Chemical Industry, Tianjin Bohai Chemical Industry, Tianjin Bohua Chemical Industry, etc.

Power Grid
Thermal power plant
Typical Projects: Harbin Thermal Power, Tianjin Junliangcheng Power Generation, Jiangxi Jingdezhen Power Generation, Guizhou Panxian Power Plant, Tianjin Wuqing Thermal Power, Jiangsu Qinli Thermal Power, Tianjin Dagang Power Plant, etc.
Other power plants (wind power, hydropower, photovoltaics)
Typical Projects: Weng’an 110kV Yinzhan Substation, Naqu High Altitude Test Wind Power Plant in Tibet, Qinxi 220kV Substation, Ningxia Datang International 100MW Wind Farm, China Resources Guangxi Cangwu Liubao Phase I 50MW Wind Power, Qianzhi Changji Mulei Laojunmiao Wind Farm 150MW, Nanchuan Phase II Wind Power, Dongdongtan 50MW Photovoltaic Power Generation, etc.

Metallurgy Industry
Typical Projects: China National Nonferrous Metals Construction Group, Beijing Iron and Steel Group, Baosteel, Nanjing Iron and Steel, Shanghai Meishan Iron and Steel, Jinan Iron and Steel, Northeast Special Steel, Northeast Special Steel , Zhongtian Iron and Steel, Jiuquan Iron and Steel , etc.

Cement Industry
Typical Projects: Anhui Conch, Binhai Renzhou Cement, TCC, Guangan Changxing Cement

Oversea Projects
Projects in oversea markets: Indonesia, Sudan, Zambia, Ethiopia, Myanmar, Russia, Kuwait, Malaysia, Iraq, Cambodia, Mozambique, Vietnam, Japan, Pakistan, Laos, Philippines, Montenegro, South Africa, Cuba, Yemen, Ghana, Senegal, Congo, Mexico, etc.

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