2014年12月24日星期三

The choice of motor with contactor


full load 75% load 50%load three phase induction electric motor Y series B35

Specifications
-One year warranty 
-Within 25 days delivery 

-Life: 5-7 years
4.1 the selection of contactor principle (1) by using the category selection: electric motors in the actual production, the vast majority of cage motor use, basic belongs to the category is diesel engine chosen according to diesel generator AC - 3 use. (2) to determine the level of capacity: the capacity of the contactor or main contactor under rated voltage and other technical conditions, the determination of the rated current, attention should be paid to the following points: 1) the influence of duty and working frequency: when choosing contactor, attention auto spare parts 3 phase induction motor should be paid to the control object is a long-term work week, or repeat short work. In the operating frequency is high, but also increase the contactor of the rated current capacity must be considered. Should as far as possible choose silver, silver or silver contact contactor, such as the KSDZ - U series products. 2) the influence of environmental conditions: production www.dongfeng-motor.com process environment is bad, dust pollution is serious, poor ventilation, and higher temperature in the workplace. To the choice of contactor should be taken down, let the use of technical measures. 4.2 contact rated current to the table of water pump price quick: a Y180L - 4, 2 kW motor, for example, from a quick table should check with U60 type contactor. The motor rated current 60 a, rated current 60 a contactor, according to the general AC - 3 work category, the contactor acmotor2.blogspot.com to control power of 30 kw magnetic generator 380 v motor, control 380 v 22 kw motor, now belongs to let use reduction.

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