Main technical parameters and combination switch selection

According to the combination switch model for more technical parameters,combination switch performance of main technical parameters are 1) the rated voltage of rated voltage is refers to under prescribed conditions,switch in the long-term work under high voltage. 2) electric motor 12v 500w rated current rated current is refers to under generator stator prescribed conditions,the switch in the closing position allowed by the maximum working current for a long time. 3) on and off On-off ability under prescribed conditions,can reliably connected under rated voltage and breaking the maximum current value. 4) mechanical life Refers to the need to repair or replacement under the mechanical parts of no load operation.

5) electric life means under the mini electric motor condition of the normal work of the regulations,does not require repair or replacement parts,the number of times the load operation.Combination switch used for isolating switch,the rated current shall be the is less than the sum of the load current in isolating circuit; Used to wholesalemotor.blogspot.com control the motor,the rated current generally take 1.5 ~ 2.5 times rated current of the motor. Shall be determined according to actual needs in the electrical control circuit,the connection mode of automobile combination switch,correct selection to meet the requirements of wiring combination switch specification.

Methods for searching the artificial

If not installed within substation grounding line selection device,also is not installed on line

grounding fault indicator or short circuit in one fault indicator,also does not have good grounding fault detector,it had to adopt artificial find stupid way.To find the steps as follows:(1) by hand (or scheduling,same below) switch,in order to know which article for grounding transformer

substation,by www.facebook.com/guohong.trading scheduling which to know.2 there are two ways to find the next point of failure: one is cascade line segments,or will often have a fault line,with 2.5 kV shaking table test grounding relatively insulation,insulation resistance small during the fault period,reduce search range (of course,in the transformer substation outlet side must be hanging safety protection measures such as grounding line);The second is the line segment as far as possible,and then try step by step and sending,and scheduling stator winding machine

interactive coordination,with zero sequence voltage alarm when the segment for fault section.Methods for searching the artificial operation very troublesome,if the line length,branch number,switch section,that is not good operation,coupled with the sky and the weather,that would be much bad treatment.Suggest or some less investment in equipment technology is used to cooperate with artificial search,can get ac alternators 220vtwice the result with half the effort,both provides the power supply reliability and the social efficiency,also created economic benefits.