nader NDM3E Series Operating Instructions Manual page 38

文件编号
Doc.No.
User should use internal and external accessories provided by Nader so as to endure their
quality; Nader should not be held reliable for purchase of accessories from other companies or
authorized modifications.
在执行维护操作前，必须先完成下列操作：
Follow following steps before conducting maintenance:
（1）使断路器分闸；
Open the breaker;
（2）断开电源与断路器的连接（包括主电路、辅助电路） ；
Disconnect power supply and breaker (including main circuit and auxiliary circuits)
（3）将断路器从安装位置上卸下（一般用于插入式，固定式最好也如此）
Remove the breaker from its installation position (normally for plug-in installation; it is
recommended to
do so for a fixing one).
断路器维护在正常操作条件下每年一次，在非正常条件下每半年一次，以下为维护内容：
Maintenance of breaker is carried out yearly under normal use and every six months under
abnormal use. The maintenance includes following procedures:
（1）再扣断路器，合、分断路器，在断路器合闸时用脱扣按钮使断路器脱扣，往复操作 5 次，断路器
应能可靠进行再扣、合、分、脱扣动作；
（2）清除断路器表面及连接处的灰尘（用清洁、干燥的抹布擦拭） ；
（3）清洁隔弧板，如必要则需要更换隔弧板；
（4）绝缘测试（见 7.1）
（5）检查所有连接情况，用砂布擦除氧化物，用可溶解剂清洁，拧紧螺栓和螺母；
（6）控制器整定值测试：应使用我公司的 NDM3E 专用测试仪器与断路器的 TEST 端口连接，检验各
个设定参数，以保证参数设定与旋钮指示一致；
（7）如果断路器还装有其它内、外部附件，应逐一检查各个附件，以确保其处于正常工作状态。
（按照 8 附件说明 详细内容进行测试）
(1) Re-trip the breaker, close and open the breaker, use tripping button to trip the breaker when it is
closed;
repeat for 5 times to check that the breaker can reliably re-trip, open, close and trip.
(2)Clean dust on breaker surface and connections (wipe with clean and dry cloth).
(3)Clean the flash barrier; replace it if necessary.
(4)Carry out insulation test (see Section 7.1).
(5)Check condition of all connections. Wipe away oxidations with abrasive cloth a nd clean with
soluble agent
. Screw bolts and nuts tight.
(6)Test of controller setting values: use a tester specialized for NDM3E provided by Nader to
connect with TEST terminal of the breaker. Check setting of each parameter to ensure that
parameter setting is consistent with knob indication.
NDT2920002
版次 第 5 版
Edition V ersion5
38
实施日期
Implementation date
20181213