language

Product Center

The company is committed to providing all-round, whole-process “one-stop” solutions to meet the different needs of customers in the fields of electric power system, industry and new energy power station.

Home

ZW20-12 outdoor column mounted vacuum circuit breaker

ZW20-12 outdoor high-voltage vacuum circuit breaker is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. Vacuum arc extinguishing and SF6 gas are used as insulation media. It is mainly used to disconnect and close the load current, overload current, and short-circuit current of rural power grids, urban power grids, and small power systems.

Category:

High Voltage Switchgear

WhatsApp:

E-mail:

Description:

Product Overview
ZW20-12 outdoor high-voltage vacuum circuit breaker is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. Vacuum arc extinguishing and SF6 gas are used as insulation media. It is mainly used to disconnect and close the load current, overload current, and short-circuit current of rural power grids, urban power grids, and small power systems. The overall structure of this product is a three-phase common box, with a three-phase vacuum arc extinguishing chamber placed inside a metal box. The transformer performance is reliable and the insulation strength is high.

Working Conditions
Altitude: not exceeding 2000m; Wind speed: not exceeding 35m/s;
Surrounding air temperature: -40°C~+40°C, daily temperature difference: daily temperature variation not exceeding 25°C;
Places without flammable, explosive hazards, strong chemical corrosives (such as various acids, alkalis, or thick smoke), and severe vibrations.

Model Meaning

ZW	Outdoor pole mounted vacuum circuit breaker
20	Design number: 20 (Box type)
12	Rated voltage: 12kV
T	Spring operating mechanism
630	Rated current:630A
25	Short time withstand current: 25kV

Technical Parameter

Project		Value
Rated voltage		12kV
Rated frequency		50Hz
Rated current		630A
Temperature rise test current		1.1lr
Rated power frequency 1-minute withstand current (relative)		42kV
Rated power frequency 1-minute withstand current (fracture)		48kV
Peak rated lightning impulse withstand voltage (relative)		75kV
Peak rated lightning impulse withstand voltage (fracture)		85kV
Rated short-time withstand current		25kV
Rated short-time withstand current duration		4s
Rated peak withstand current		63kV
Loop resistance		≤120uΩ
Mechanical life		10000
Partial discharge (1.1Ur)		≤10pc
Protection grade		IP67
Rated pressure of SF6 gas (20°C gauge pressure)		OMpa
Annual leakage rate of SF6 gas		≤0.1%

Parameters

Key words:

ZW20-12 outdoor column mounted vacuum circuit breaker

HTN-12 environmental protection gas ring network cabinet

HRW12-12 outdoor high-voltage drop out fuse

Application description:

The company has a diverse, high-performance product portfolio, backed by cutting-edge technology and stringent quality standards, to meet the needs of the domestic and international markets. The products include 12-72.5 kV gas insulated switchgear, 12-40.5 kV switchgear, Ring Main Units (RMUs), Mobile Substations, Column Mounted Switchgear and Integrated Primary and Secondary Switchgear. Its flagship products, such as the NISELA series of environmentally friendly gas-insulated RMUs and the GISELA series of SF6 gas-insulated RMUs, integrate cutting-edge technologies such as solid insulation, vacuum interrupting and modular plug-in design to ensure high reliability, environmental friendliness and adaptability to different scenarios (indoor/outdoor, basement, etc.). These products are widely used in urban power distribution networks, rail transportation, new energy and industry, etc. The market share of RMUs in China's railroad sector reaches 30%. The company prioritizes product innovation and continues to strengthen its R&D capabilities in 40.5kV environmentally friendly gas insulation, SF6 breaking technology and multi-field coupling simulation. This commitment ensures that our products not only meet current industry standards, but also lead the way in technological advancement, providing future-proof solutions for our customers. In addition, they products are exported to Singapore, South America, Southeast Asia, Korea, the Middle East and other international markets.

Infrastructure Projects

Renewable Energy Integration

Commercial Building Electrification

Grid Application Solutions

Why Choose Us?

Huatuo Power Equipment Group

HUATUO Power Equipment Group Co., Ltd. has six subsidiaries and possesses strong R&D capabilities. Since its establishment, the company has published 45 papers and applied for 124 patents, including 64 invention patents. The company has been awarded titles such as ‘4A-level Credit Enterprise,’ ‘Henan Province High-Quality Medium-Sized Enterprise,’ and ‘Mayor's Quality Award,’ fully demonstrating its excellence in technology, quality, and credibility. The company employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 sets of various ring main units and an annual output value of approximately 1.58 billion RMB. The company is equipped with comprehensive testing facilities, including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

2007 year

Company establishment

50000 m²

Equipped Warehouse

30000 Sets

Annual production of various ring main units

124 +

Patent Certificate

Shipping Site

Huatou Power Equipment Group Co., Ltd. consistently adheres to the principle of ‘pursuing high quality and customer satisfaction,’ upholding the principles of ‘the most competitive prices, the most considerate service, and the most reliable product quality.’ The company focuses on long-term customer satisfaction, offering timely after-sales service, including on-site commissioning, maintenance guidance, and technical consultation. Its comprehensive logistics and response system ensures rapid access to spare parts and professional support. We welcome you to contact us.

FAQ

Can your factory guarantee both delivery speed and quality?

No problem. Our company currently employs over 300 staff members and possesses advanced manufacturing capabilities, with an annual production capacity exceeding 30,000 units of various ring main units and an annual output value of approximately RMB 1.58 billion. The enterprise is equipped with comprehensive testing facilities including a 200kV partial discharge measurement system and a ±900kV lightning impulse test system, ensuring strict quality control throughout the entire production process.

Are you a trading company or a manufacturer?

We are a manufacturer at the source. Our company is dedicated to providing comprehensive, end-to-end “one-stop” solutions for clients in the power systems, industrial, and new energy power plant sectors, meeting their diverse needs.

The company is committed to providing all-round, whole-process “one-stop” solutions to meet the different needs of customers in the fields of electric power system, industry and new energy power station.

ZW20-12 outdoor column mounted vacuum circuit breaker

Sorry，当前栏目暂无内容!

Sorry，The current column has no content!