Yueqing Grace and Electric Co., Ltd. to provide you JCZ8-160 / 7.2KV AC vacuum contactor has connected, breaking capacity, electrical and mechanical long life and high reliability in harsh conditions, particularly suitable for use in basic industries , metallurgy, petroleum, chemical, mining and container terminal departments. It applies to AC 50HZ / 60Hz, rated working voltage to 7.2KV, 160A rated operating electric power system, for far, close and breaking the circuit under heavy duty conditions and frequent starting and controlling AC motor, and with a variety of protection devices composed of electromagnetic starter. The vacuum contactor has more advantages over conventional air exchanges and contacts, longer life and higher reliability, and having an electronic device with a compatible auxiliary switch, therefore, can replace the traditional exchanges and contacts in all conditions is CJ12 and CJ20 series, in all important occasions, to better reflect its characteristics and economy. Product use, methods of operation; preparation and examination before 5.1; 5.1.1 should check the product before the connection is loose, shedding phenomenon; 5.1.2 Power line and the terminal is firmly secured, and keeping a specified clearances and creepage distance; 5.2 with the operating methods; 5.2.1 Environment installed contactors; 5.2.2 the nominal control voltage is directly connected to the terminal contacts the power supply board (has left). 6.1 6 Parameter Settings and check the voltage level debugging and related technical parameters are correct, we can send electricity to debug; 6.2 contactors factory fine, generally do not need to mobilize, as a result of replacing the vacuum switch when the need to mobilize follow To adjust: 1) Loosen the soft coupling screws, lock nut, unscrew the lever, and then release the vacuum fixing screws, remove the damaged pipe, then in reverse order to put the new models of vacuum tubes of the same size; 2) opening distance adjustment method, rotating adjustment rod (clockwise), available vernier caliper, make contact opening distance meet the technical requirements specified value, and a three-phase synchronized date, then you can lock; 3) replacement of the new vacuum switch, Examine the available frequency voltage vacuum, it requires open from 1:00 withstand 10kV lasted 1min, after the test, should be no breakdown flashover continued, no such conditions are available 500V megger pipe insulation resistance, new vacuum switch tube insulation resistance should be greater than 100MΩ. 7 Fault analysis and troubleshooting Symptom Cause Analysis contactor may appear poor contact Remedy Check whether the connection is no reliable fixed firmly secured to keep the provisions in the tightening clearances and creepage distances contacts might not sound spring loose view of the spring, and make appropriate adjustments to electricity may not respond Check the control circuit board burned out if there is sealing off the board, measuring rectifier bridge is intact there are phase behavior may be a burned out replace vacuum tubes only 8 transport, storage requirements should be kept in ventilated, dry place to prevent corrosion. 9 9.1 Unpacking and checking the check box and box items and information: Important files out of the box should be checked whether the product is ordered by the user matches the product, product certification, manual, etc; 9.2 checking Appearance: after checking out of the box the appearance of the product during transport if there are obvious cracks or damage. 10 Precautions before use, check the voltage and the actual use of products manufactured in line voltage, and check the other main technical parameters. JCZ8 main models 160 250 400 630 [A] coil voltage 110v 220v 380v rated voltage main line 12KV- [10kv] 7.2KV maintain Electromagnetic holding mechanical interlocking mechanical holding