Cov ntsiab lus rau kev saib xyuas hauv Kev Tshawb Fawb Kev Siv Hluav Taws Xob Hluav Taws Xob

The DC circuit breaker can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., connect and disconnect circuits under normal conditions, and can also be used to cut short-circuit fault currents, that is to say, it is also responsible for The dual task of control and protection. However, in recent years, circuit breaker accidents have occurred together. Common breaker failures, overheating, excessive noise, and more serious accidents include sudden burning and explosion of circuit breakers. The following editor will summarize the reasons for the explosion accident and the corresponding solutions for everyone.　

Before installing the DC circuit breaker, strictly check its performance indicators to meet the technical requirements. Because if the maintenance quality does not meet the requirements. If you randomly change the opening and closing speeds during the maintenance, and randomly change the arcing distance of the circuit breaker, the breaking capacity of the circuit breaker will be reduced. If the breaking capacity of the circuit breaker is too small; when a short circuit occurs, the circuit breaker cannot cut off the short circuit current, causing the circuit breaker to explode and catch fire.　

Improper operation and maintenance. After the DC circuit breaker cuts off the short-circuit current for many times, if the maintenance is not arranged in time, it will force the power supply many times, so that the circuit breaker is affected by the short-circuit current many times. These all reduce the breaking capacity of the circuit breaker and cause the circuit breaker to explode and catch fire. Therefore, it is necessary to strengthen operation, maintenance and management. When the circuit breaker is in operation, patrol inspection should be done, and the normal operation of the circuit breaker and the number of fault trips should be counted so as to arrange the maintenance time.　

Cov roj insulating tsis huv. Ib tug loj npaum li cas ntawm dawb carbonization ntawm cov roj ntawm lub Circuit Court breaker, ib tug loj npaum li cas ntawm aging, noo noo thiab dej nyob rau hauv cov roj, uas ua rau impure roj zoo, yuav flashover nyob rau hauv lub Circuit Court breaker thiab ua rau tawg. Qhov no yuav tsum muaj kev ntsuam xyuas tsis tu ncua. Tshwj xeeb tshaj yog kev tiv thaiv kev sim ua ntej lub caij ntuj nag xob nag cua.

Tsis tas li ntawd, kev tshuaj xyuas thiab kho yuav tsum tau ua nyob rau tib lub sijhawm los xyuas kom meej qhov zoo ntawm kev tshuaj xyuas thiab kho. Ua ib txoj haujlwm zoo ntawm kev tiv thaiv kev ya raws, xau thiab muaj kuab paug ntawm DC Circuit Court breaker los tiv thaiv lub Circuit Court breaker los ntawm dej thiab damp. Rau cov khoom siv hluav taws xob no, xws li cov contactors, nws yog ib qho tseem ceeb uas yuav tau xaiv cov khoom zoo tshaj -, tab sis kev saib xyuas thiab kev tiv thaiv kev kub ntxhov thaum ua haujlwm yog qhov tseem ceeb dua.

Muab cov ntsiab lus hauv qab no kom nco ntsoov: qhov ntsuas hluav taws xob ntawm DC Circuit Court breaker yog ntau dua lossis sib npaug ntawm qhov ntsuas hluav taws xob ntawm kab; qhov ntsuas hluav taws xob ntawm lub undervoltage tso tawm ntawm Circuit Court breaker yog sib npaug rau qhov ntsuas hluav taws xob ntawm kab; qhov ntsuas hluav taws xob ntawm lub Circuit Court breaker shunt tso tawm yog sib npaug rau qhov voltage ntawm kev tswj fais fab mov; lub thav duab ntawm DC Circuit Court breaker Qhov ntsuas tam sim no ntawm qib siab dua lossis sib npaug ntawm qhov ntsuas tam sim no ntawm kab; qhov ntsuas tam sim no ntawm Circuit Court breaker yog ntau dua lossis sib npaug rau qhov ntsuas tam sim no ntawm kab; qhov ntsuas luv luv- Circuit Court ua thiab tawg lub peev xwm ntawm lub Circuit Court breaker yog ntau dua lossis sib npaug rau qhov luv luv -circuit tam sim no hauv kab; ib zaug -theem-rau- hauv av luv- tam sim no ntawm qhov kawg ntawm kab yog ntau dua lossis sib npaug rau 1.5 npaug ntawm qhov nrawm nrawm (lossis luv luv) tripping tam sim no ntawm Circuit Court breaker; hom Circuit Court breaker yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm kev teeb tsa, kev tiv thaiv kev ua haujlwm thiab kev ua haujlwm.

Cov lus qhia hauv qab no:

(1) Qhov ntsuas tam sim no ntawm Circuit Court breaker yog txiav txim siab los ntawm kev ntsuas tam sim no ntawm lub Circuit Court;

(2) Qhov luv luv -circuit teem tam sim no ntawm lub Circuit Court breaker yuav tsum zam qhov pib ua hauj lwm tam sim no ntawm Circuit Court.

(3) Txheeb xyuas qhov muaj peev xwm tawg ntawm qhov qis -voltage circuit breaker raws li qhov luv luv -circuit tam sim no ntawm kab;

(4) Txheeb xyuas qhov rhiab heev ntawm Circuit Court breaker raws li qhov me me luv -circuit tam sim no ntawm kab, uas yog, luv luv me me -circuit tam sim no ntawm kab yuav tsum tsis pub tsawg tshaj 1.3 npaug ntawm luv luv-circuit teem tam sim no ntawm Circuit Court breaker;

(5) Txheeb xyuas qhov luv luv- Circuit Court ua peev xwm (kwv yees tus nqi siab tshaj ntawm cov tam sim no loj) ntawm Circuit Court breaker raws li luv luv -circuit impulse tam sim no ntawm kab (uas yog, qhov loj tam sim no tus nqi ntawm luv luv -circuit tam sim no), uas yog, tom kawg yuav tsum ntau dua qhov qub.