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3 Poles Zw7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker Recloser Structure

Shandong Weiteri Electric Co., Ltd.

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Address: Yangliu Town Industrial Park, Xintai City, Tai′an, Shandong, China

Contact name:Zhu

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Shandong Weiteri Electric Co., Ltd.

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3 Poles Zw7-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker Recloser Structure

Country/Region china
City & Province shandong
Categories Connectors & Terminals
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Product Details

Basic Info.

Model NO.
ZW7-40.5
Breaking Capacity
High Voltage Circuit Breakers
Operation
Electric Type
Speed
Normal Type Circuit Breaker
Arc-extinguishing Medium
Vacuum
Installation
Fixed
Structure
Recloser
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000, CCC
Trademark
Witry OEM
Transport Package
Export Standard Wooden Case
Origin
Shandong China
HS Code
8535210000

Product Description

Product overview
ZW7-40.5
LW7-40.5 outdoor high voltage vacuum circuit breaker is used for switching load current, overload current and short circuit current of AC 50Hz three-phase power systems. It is mainly composed of vacuum arc extinguisher, CT and driving mechanism. The overall structure is pole-mounted type. The three-phase shares the same mechanism box which is water proof. This circuit breaker is equipped with spring operating mechanism or electric operating mechanism.
Service environmental conditions
Ambient temperature:   -30°C~+40 º C (special circumstances of -40°C~+40°C);
Altitude :                          ≤2500m
Relative humidity:          Daily average of no more than 95%
                                  Monthly average of no more than 90% (25°C)
Saturated vapor pressure:  Daily average of no more than 2.2kPa
Monthly average of no more than 1.8kPa
Wind speed:                 No more than 34m/s(equal to cylinder surface 700Pa)
Ice coating thickness:   10mm
Seismic intensity:        Horizontal acceleration: ≤0.3g
Vertical acceleration      ≤0.15g
 
Sunlight strength:        0.1W/cm2 (at wind speed of 0.5m/s)
Maximum daily temperature difference: 25ºC
Nominal creepage distance:      31mm/kV
In places free from free from flammables, explosives, chemical corrosion and violent vibration.
Technical specification
 No.Technical requirementsUnitParameters
1Rated voltagekV40.5
21min power frequency withstand voltage(dry type)kV95
3Wet type (external insulation to ground)kV80
4Lightning impulse withstand voltage(peak)kV185
5Rated currentA1600,2500
6Rated short circuit breaking currentkA25,31.5
7Rated operating sequence Open-0.3s-close-open-180s- close-open
8Rated capacitor bank breaking currentA400
9Breaking times of rated short circuit currentTimes12
10Rated short circuit closing current (peak)kA63,80
11Rated short-time withstand currentkA25,31.5
12Rated short circuit durationS4
13Full-open short circuit timems80
14Mechanical lifeTimes10000




About Our Company

Shandong Witry Electric Co., Ltd. is a professional electrical equipment enterprise located in Shandong province east of China, integrating R&D, design, manufacture, supply and export.

The main products are high-voltage transmission and transformation equipment, high and low-voltage switchgear, cable tray. the products are widely used in power, metallurgy, chemical industry, machinery, medicine, mining, textile and other industries.
 
 
Mission & Vision
Thinking and doing more,  make customers do less.
Being more efficient,  make customers more beneficial.
Represent with quality,  make reputation with service.
Sincerely treat guests,  make friends in business.

We are committed to producing only the highest quality products that meet or exceed our customers' expectations and requirements. Our goal is to achieve 100% customer satisfaction by delivering the best products and services on time and defect free. We will achieve this individually and corporately through tested and proven processes and controls in our Quality System, and with a constant focus and effort on continuous improvement.
 
 
Our Employees
Our employees consists of experienced, well-motivated and dedicated team of engineers, technicians, sales executives and management staff.

Our company has a strong technical team, all-weather provide convenient fast pre-sale and after-sale service and detailed engineering technical solutions.
 
Our Equipment and Management
Our factory covers an area of 100,000 square meters and has 18 workshops. The main equipment includes laser cutting machine, Shearing Machine, automatic ladder edge production line, high-voltage electrostatic powder spraying production line, etc. It has more than 100 sets of imported CNC processing equipment and precision testing equipment.

Each process has strict quality control and processing technology, and the products fully comply with national standards and IEC (International Electrotechnical Commission)standards. The company has successfully obtained ISO9001:2008 quality management system, ISO14001:2004 environmental management system and OHSAS18001:2007 occupational health and safety management system certification.
 





































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