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    电气成套设备越级跳闸的主要情况如何?

    发布时间:2022-04-25 来源:/ 浏览量:

      电气成套设备的使用避免不了问题的出现,提前做好预防工作有利于减少问题的出现,我们需要知道有哪些故障问题会出现,比如电气成套设备越级跳闸的主要情况如何?
      The use of electrical complete equipment can not avoid the emergence of problems, do a good job of prevention in advance to reduce the emergence of problems, we need to know what fault problems will appear, such as the main situation of electrical complete equipment trip?
      主开关负载容量小于分开关负载总和的容量;主开关有漏电保护装置然而分开关没有,当用电器漏电大于等于30毫安时主开关跳闸;两级电气成套设备保护不匹配,尽量使用同的电气成套设备;经常带负荷操作主开关导致触电碳化接触不良后电阻增大电流升高发热跳闸;下级电气成套设备配置的保护无法正确判断故障;电气成套设备老化导致分励脱扣时间变长,要更换一个分励脱扣时间小于上一级开关的分开关。
      The load capacity of the main switch is less than the total load capacity of the separate switches. The main switch has leakage protection device but not separated off, when the use of electrical leakage is greater than or equal to 30 ma when the main switch trip; Two levels of complete electrical equipment protection does not match, try to use the same brand of complete electrical equipment; Often with load operation of the main switch lead to electric carbonization contact poor resistance increases current increases heat trip; Failure can not be correctly judged by the protection of subordinate complete electrical equipment configuration; The aging of the complete electrical equipment causes the shunt trip time to be longer. Replace a shunt trip whose time is shorter than the split switch of the previous level.
      如发生上级电气成套设备越级跳闸,若查明有分路保护动作,但该分路电气成套设备未跳闸,则分断该级电气成套设备,然后恢复上级电气成套设备;若查明各分路保护均未动作,则应检查停电范围内设备有无故障,若无故障可合上上级电气成套设备,并逐一试送各分路电气成套设备。当送到某一分路时电源电气成套设备又再跳闸,则可判明该电气成套设备为故障电气成套设备,可对该线路进行隔离维修更换。
      In case of grade-exceeding trip of superior complete electrical equipment, if it is found that there is shunt protection action, but the shunt complete electrical equipment does not trip, the electrical complete set of the same level shall be cut off, and then the superior complete electrical equipment shall be restored; If it is found that none of the shunt protection works, it should be checked that there is no fault within the scope of power failure. If there is no fault, the superior electrical complete set of equipment can be closed and each shunt complete set of electrical equipment can be tried one by one. When the power electrical complete set of equipment is sent to a branch and then trips again, it can be determined that the electrical complete set of equipment is faulty electrical complete set of equipment, and the line can be isolated, repaired and replaced.
      电气成套设备要跳闸须符合两个条件,一是故障电流大小达到设定值,二是故障电流持续时间达到设定的时间长度,所以要确保电气成套设备不越级跳闸须在电流设定值和时间设定值上配合好。要确保不越级跳闸须用继保设备测试电气成套设备的实际动作时间总长,用实际试验结果的时间长度来确保配合的正确。
      Tripping of complete electrical equipment must meet two conditions, one is the fault current reaches the set value, the other is the fault current duration reaches the set time length, so to ensure that the complete electrical equipment does not skip the trip, it must cooperate well in the current set value and time set value. To ensure that there is no leap-step trip, it is necessary to test the total actual operation time of complete electrical equipment with follow-up equipment, and ensure the correct coordination with the time length of actual test results.
      电气成套设备越级跳闸的主要情况如何?以上便是问题的相关解答了,如果您对此有疑问的话可以通过网站www.sxbaojia.com联系到我们,人员在线为您解惑!
      What is the main situation of grade-jumping trip of complete electrical equipment? The above is the relevant answer to the question, if you have any questions about this, you can contact us through the website www.sxbaojia.com, professional online for you to solve the doubts!
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