Zw7-40.5 High Voltage 3 Phase Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: ZW7
• Arc-extinguishing Medium: Vacuum
• Installation: Open Frame
• Structure: MCCB
• Poles Number: 2
• Type: Circuit Breaker
• Function: Overcurrent Protection
• Certification: ISO9001-2000, CE, CCC
• Nominal Voltage: 40.5kv
• Rated Current: 1250A
• Rated Short-Circuit Breaking Current: 20ka
• Peak Value of Rated Closing Current: 50ka
• Rated Dynamic Stable Current Value: 20ka
• Transport Package: Wooden Box
• Specification: Three-phase common box type
• Trademark: CHSH
• Origin: China
• HS Code: 8504401990
• Production Capacity: 1000PCS/Years
• Package Size: 25.00cm * 50.00cm * 24.00cm
• Package Gross Weight: 800.000kg

Product Description

Product Description

 

ZW7-40.5 type outdoor high voltage vacuum circuit breaker is used for AC 50Hz, voltage 40.5KV three-phase power system, as breaking, closing load current, overload current and short circuit current.

Product Parameters

Main function

 

1. Vacuum arc extinguishing, strong breaking ability, long electrical life, mechanical life 10000 times;

2. Simple structure, maintenance-free, long cycle without maintenance;

 

3. Good insulation performance, strong anti-pollution ability;

 

4. Can be equipped with spring or electromagnetic operating mechanism, mechanical performance is reliable, can be frequently operated; No fire and explosion hazards;

5. Built-in current transformer, lecturer accuracy of 0.2, can achieve three-phase interactive protection;

 

6. The inner condensation controller can keep the circuit breaker running reliably at a certain temperature and humidity.

Environmental conditions of use
 

1. Ambient air temperature: upper limit +40C, lower limit -30C;
 

2. Altitude :≤2000m(if it is necessary to increase the altitude, the rated insulation level will be increased accordingly);

3. Wind pressure: not more than 700Pa(equivalent to 34m/s wind speed);
 

4. Amplitude: earthquake intensity 8 degrees;
 

5. Pollution level: Level 3;
 

6. Maximum daily temperature difference: no more than 25C.

Technical Parameters

 

Item			Unit	Parameter
Nominal voltage				40.5
Rated insulation level	Power frequency withstand voltage	Dry		95
		Visco		80
	Lightning impulse withstand voltage			185
Rated Current			A	1250,1600,2000
Rated short-circuit breaking current			KA	20,25,31.5
Rated operating sequence				-0.3s,-180s
The number of times the rated short circuit current is broken			Timcs	12
Rated short-circuit closing current (peak)			KA	50,63,80
Rated peak withstand current
Rated short time current				20,25,31.5
Rated short-break continuous current			S	4
Average opening speed			M/S	1.5±0.2
Average closing speed				1.7±0.2
Contact closing bounce time			S	≤2
Triphase (split) gate synchronous time difference				≤2
Closing time				≤150
Opening time				≤60
Mechanical life			Timces	10000
Rated operating voltage and rated voltage of auxiliary circuit			V	DC220,110,24
Dc resistance per phase loop (without transformer)			μΩ	≤100
Allowable wear thickness of dynamic and static contacts			MM	3
Weight			KG	800

Company Profile

ABOUTUS
Shenheng Power Equipment CO.,LTD is a company specializing in the production of high and low voltage switch power transmission and distribution equipment and high, low voltage electrical components, one of the professional production enterprises, the production of all fully insulated and fully sealed inflatable cabinet intelligent solid insulation ring main unit,outdoor high voltage cable branch box,box-type substation, etc. Product quality is stable, reliable, It is deeply trusted and approved by the customers.

Manufacturing of the main products are YBW box-type substation KYN61-40.5,KYN28A-24,KYN28A-12,XGN2-10,HXGN-10 high voltage switch gear,XGN ring net cabinet SHSRM inflatable ring main unit,SHSG solid ring main unit,MNS.GCS,GCS,GGD,XL low voltage switch gear,vacuum circuit breaker,oil immersed transformer,dry type transformer current /potential transformer,load break switch and other power transmission and distribution equipment.

For a long time also for all kinds of metallurgy,ship building,electric power,mining, and intelligent buildings. high-rise buildings, hospitals, schools and other industries to provide high quality power transmission and distribution of complete sets of equipment and electrical control equipment.The company has a strong technical force, sophisticated technology and sophisticated testing methods, and the products sell well across the country.

Packaging & Shipping

Certifications

 

FAQ

1.Are you a trading company or a manufacturer?
We are a professional factory with 10 years of experience in the field of high and low voltage switch gear and substation. Transformers, cables, distribution boxes and various electrical equipment, such as vacuum circuit breakers, load breaking switches, etc. Our factory is an excellent supplier of the State Grid Corporation of China.

2.Do you accept custom service?
We provide OEM/ODM services, according to your drawings and parameters, our professional technical and national team can provide satisfactory solutions.

3.What is your minimum order quantity?
Our minimum order quantity is 1 piece.

4.What is your lead time?
It depends on your product requirements and quantity. It usually takes 5-10 working days.

5.How do you solve quality problems?
Please provide detailed photos of the quality problem. Our technical and quality inspection departments have done a good analysis. We'll come up with a satisfactory solution within two days.

6.What are your terms of payment?
T/T payment can negotiate the balance of deposit.Western Union, letter of credit is also acceptable.