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Capacitor Switching Contactor (CJ19 Series)
- 10000 Unit / Units per Month
- Ningbo or Shanghai
- T/T D/P D/A Credit Card
Product Details
Place of Origin: | Zhejiang, China | Brand Name: | Dixsen | Model Number: | CJ19 Series |
Electricity Type: | AC | Number of Pole: | 3 | Phase: | 3 |
Main Circuit Rating Voltage: | Other, 380V AC | Main Circuit Rating Current: | Other, None |
Product Description
Application
Contactors provide remote control of primarily electric motors and compensation & heating systems by cable. They protect the instruments and equipments against overload currents by using thermal relays, for Capacitor switching contactor: While switching on a capacitive circuit, a high frequency (1~15Hz) 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 suitable contactors the compensating current must be taken into consideration for 50KVAR and above, and for less than 50KVAR can be omitted. Dixsen offer complete range of contactors for most kinds of applications.
Why Capacitor switching contactor?
As it is known, when the capacitor starts to operate, they cause a high frequency between 1-15 kHz. And a current that is 180 time 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 is why capacitor switching contactors are used and for this reason the ife-time of contactors increase 100% in comparision with normal contactor.
Fulfill following Standard
IEC60947-4-1, EN60947-4-1
Contact material
Silver cadmium oxide
Contact
Main and auxiliary contact, coil and auxiliary contact blocks are easily installed and removed. The coils of contactors are safely controlled between 0.8 and 1.1 times of their rated coil voltage. They operate at full performance in the ambient temperature of -5 and +55. The ability of assembling contactors to rails provides a great facility during installation. The ingredient of the material provides a resistance to an insulation voltage of 1000V.
Contactors damages and repairs
Contactor damages and effects of these damages
There can be damages when the contactors are not used according to technical datas and then failures begin to occur at the feeding system. Reasons of probable cancellation of Contactors. Generally, contactors are the devices, which do not damage easily. If the selection is made correctly and operating conditions are not out of order, contactor can make millions times opening and closing safely. The reasons of the cancellation and their solutions are given below.
Excessive length of cable of command circuit (coil) can cause some problems. Voltage is low during the long cables and this reason makes the closing difficultly and over big cross-sectioned cable capacitance obstruct opening. Generally advised cable cross-selection and length are mentioned in catalogues. If the command circuit is longer than the advised value, higher contactor and more lower coil voltage, resistance or inductive impedance connection should be used.
Dirt or foreign particles in the contactor, hard atmosphere conditions and corrosion can obstruct the closing operation of contactor. If we face a problem like this, contactor should be cleaned, appropriately. Then the circuit should be checked and modified for a more protective environment for the contactor. If there is a factor damaging the conduction, it should be removed.
Events that can cause the contactors, noisy operation is dust and having foreign particles in the air space etc, unsuitable voltage and frequency. Also defect of the nucleus surface because of long time operation. To obstruct all these, we should provide the clearness of the nucleus face and (if needed) coil changing should be made for voltage and frequency.
Changing the coil
New coil is put on by pulling up screws, which are taking place on both sides of the contactor, separating the upper parts and taking the coil out off its socket. Much attention should be paid to placing on its spring that at the bottom side, during re-assembling.
Type | Control Capacity | Rated Current @ 380V(AC3) | PCS./CTN. |
CJ19-25 | 18KW | 12A | 40 |
CJ19-32 | 23KW | 18A | 32 |
CJ19-43 | 29KW | 20A | 32 |
CJ19-63 | 43KW | 30A | 20 |
CJ19-95 | 63KW | 40A | 20 |
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Contact Us
- Zhejiang Dixsen Electrical Co., Ltd.
- Contact nameJane Zheng
- Phone86-577-62865113
- AddressChang Jiang Road, Daqiao Industrial Zone Wenzhou,Zhejiang
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