ZN85-40.5 Indoor high voltage vacuum circuit breaker
ZN85-40.5 series indoor high-voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is suitable for three-phase AC 50Hz, rated voltage 40.5kV power system, can be used by industrial and mining enterprises, power plants and substations as a load current, overload current, fault current.
The circuit breaker and the operating mechanism adopt the upper and lower arrangement structure, which effectively reduces the depth of the circuit breaker.
The three-phase interrupter and the connected charged body are isolated by three independent epoxy resin insulating cylinders to form a composite insulation structure, and the circuit breaker meets the requirements of air distance and creepage distance under normal operating conditions, and effectively reduces the volume of the circuit breaker. The vacuum interrupter of the main electrical circuit and the dynamic and static conductive connection are installed in the insulating cylinder, so that the phase spacing is only 300mm. The electrical connections of the main circuit are all fixed connections, which have high reliability. The insulating tube is installed above the circuit breaker frame.
The spring operating mechanism specially designed for this new type of circuit breaker is installed in the circuit breaker frame, and its structural characteristics are more suitable for the upper and lower arrangement of the circuit breaker, and become an inseparable part of the overall structure of the circuit breaker. The mechanism design is simple, and the output curve and its performance are more suitable for the characteristics and requirements of 40.5kV vacuum circuit breaker.
The overall layout is reasonable, beautiful and concise. It is compact in size, flexible in operation, reliable in electrical performance, long in service life, easy in maintenance, and maintenance-free in mechanism.
The circuit breaker is suitable for frequent operation and a variety of occasions and places with harsh operating conditions.
ZN 85 - 40.5 / X - X
1 2 3 4 5
| 1:Indoor Vacuum Circuit Breaker |
| 5.Rated short-circuit interrupting current(kA) |
| Attribute |
Unit |
Data |
| Rated voltage |
kV |
40.5 |
| 1min power frequency withstand voltage (effective value) |
kV |
95 |
| Lightning impulse withstand voltage (peak value) |
kV |
185 |
| Rated frequency |
Hz |
50 |
| Rated current |
A |
630 , 1250 , 1600 , 2000 |
| Rated short-time withstand current |
KA |
25,31.5 |
| Rated peak withstand current |
KA |
63,80 |
| Rated short circuit duration |
s |
4 |
| Rated short-circuit breaking current |
KA |
25,31.5 |
| Rated short-circuit making current |
KA |
63,80 |
| Rated operating sequence |
|
O-0.3S-CO-180s-CO |
| Breaking time |
ms |
<80 |
| Rated short-circuit breaking current breaking times |
times |
30 |
| Rated operating voltage |
V |
AC110,220,DC110,220 |
| Mechanical life |
times |
10000 |
Wenzhou Naisite Electric Co., Ltd is a technology oriented transmission and distribution equipment manufacturing enterprises, since its establishment in 2011, focus on transmission and distribution equipment technology progress, advocating technological innovation, introduce new energy prefabricated, a secondary fusion ring cage, environmental protection cabinet,Transformers, cable branch box, box type substation such as intelligent high and low voltage transmission and distribution equipment. Applicable to electric power, railway, petrochemical, subway, municipal construction, steel, coal and other industries. The company's products have achieved a number of technological breakthroughs in environmental protection, miniaturization, intelligence, maintenance free and other aspects. The headquarters of Wenzhou Naisi Electric Co., Ltd is located in the core area of Wenzhou Yueqing Economic Development Zone, "the capital of Electrical appliances in China". Has an excellent domestic intelligent distribution network products assembly line.
The company has a vacuum box helium leak detection system, local discharge test laboratory and other advanced inspection and test equipment system. With the basic experimental facilities and research environment needed for advanced technology development and scientific research, the products are tested according to the international IEC standards. The enterprise has passed the IS09001 quality system certification, IS014001 environmental system certification and OHSAS18001 occupational health and safety management system certification, the products have been obtained the CNAS national accreditation laboratory certification report.
| Q: Are you a trading company or manufacturer ? |
| A: We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.Our factory is the excellent supplier of State Grid Corporation of China . |
| Q: Do you accept customized serveice ? |
| A: We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters . |
| Q:How long is your delivery lead time ? |
| A: It depends on your product requirement and quantity . Generally , 5~10 working days is available . |
| Q: How do you solve quality problems? |
| A: Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days. |
| Q: What is your payment terms ? |
| A: 30%T/T in advance,70% before shipment . West union , L/C are also acceptable . |
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