Industrial Switch Socket Change Over Contactor 50 Amp 80 Amp

Industrial Switch Socket Change Over Contactor 50 Amp 80 Amp

Description:

As it is known, when the capacitor starts to operate, they cause a high frequency between 1~15kHz. And a current that is 180time higher than rated current for very short time period. Shock inductance is to be fixed to each phase to limit this current. But practically this type of operation is difficult. That's why capacitor switching contactors are used and for this reason the life-time of contactors increase 100% in comparision with normal contactor. Example: if electrical life of normal contactor is 100,000times in max load, electrical life of capacitor switching contactor is 200,000times.

While Switching on a capacitive circuit, a high frequency (1...15kHz) and large transient current Peaks are produced. Switching of capacitor for a single or one of the capacitor banks are different from each other. Step by step "switching on" operation is more difficult for contactor than capacitor bank. Because during this operation for capacitor bank, compensated current occurs. For this reason selecting of a suitable contactors the compensating current must be take into consideration for 50kVAr and above, and for less than 50kVAr can be ommitted.

Operating Principle: When coil of contactor is energized, first contact of passing block is closed, starting current of contactor is passed through this contact, approximately after 3-5 ms contacts of passing blocks are opened and rated current of contactor is carried on main contacts.

Specifications:

Operation Condition:

1. When the switch is closed condenser must be discharged before recharged.

(Maximum residual voltage at terminals ≤ 50V)

2. In working voltage 500V (Ue=500V), 100,000 times for UKC1(D)-9C~40C and 80,000 times for UKC(D)1-50C~85C

3. To prevent short current, gG type Fuse must be 1.5~2 times than rated current.

4. It must be separated from resistant wire

5. The average temperature over a 24-hour period, in accordance with standards IEC70 and 831 is 45 degree

External dimensions:

Zhejiang Kripal Electric Co.,Ltd is one of the national new high-tech enterprises integrated of researching, producing and selling water-proof electric, low-voltage electric and new energy electric products.

Established in 1992, Kripal now is gradually becoming the influential electric manufacturer in China after many years well development.

With a great brand effect , Kripal has the completed sales and service network with its products been exported to all over the world like Europe,Australia, American,Africa, Oceania, Southeast of Asia, and district of HongKong, Macaw and Taiwan. Kripal is awarded the title of “Famous Export Brand”.

Kripal now has the factory area 12000 m2 and workers more than 500, including over 10 senior engineers, 30 professional technicists and 30 senior executives. Products pass the certification of CE, CB, UL, VDE, TUV, KEMA, SAA, SEMKO, RoHS, and China CCC as well as quality management system such as ISO9001.

Cooperated with domestic and foreign R&D institutions, Kripal successively developed more than 100 independent intellectual properties; some of them were successfully awarded the national patent for invention and utility models as its well performance. Kripal now has been selected as provincial technical research and development center and patent demonstration enterprise by government.

Kripal always adheres to the enterprise principle of “Scientific management, Independent Innovation, Coordinating Collaboration and Cultural Brand”, keep faith of “moral first”, and fulfill the core value of “double-win cooperation with customers, creating profit for company owners, getting rich together with workers, building harmony for society” and fight for the mission of “make the dream of world famous electrical brand come true”.

Workers: 650 (including workers in Taizhou factory)

Engineers: more than 30

QA/QC: more than 20

Certificate: CQC, CB, CE,VDE,UL, TUV, Semko, KEMA, SAA, ISO9001

The land space of the company: amounts to 25000m2

What we do: products’ design, mold building, production of parts (injection & punching), assembling,
products’ inspection, testing and etc

KRIPAL adheres to the belief - "scientific management, independent innovation, coordinating collaboration, and cultural brand" and the enterprise principle - "we are advancing every day".