文件编号
Doc. No.
NDT2920257
版次
Edition
第
2
版
Version 2
实施日期
Implementation date
2019-08-19
13
司不能负责。
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；
(1) Open the breaker;
（
2
）断开电源与断路器的连接（包括主电路、辅助电路）；
(2) 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，固定式推荐也如此）。
(3) 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；
(1) Re-trip the breaker, close and open the breaker, use trip 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
）清除断路器表面及连接处的灰尘（用清洁、干燥的抹布擦拭）；
(2) Clean dust on breaker surface and connections (wipe with clean and dry cloth);
（
3
）清洁隔弧板，如必要则需要更换隔弧板；
(3) Clean the flash barrier; replace it if necessary;
（
4
）绝缘测试（见
6.1
）
;
(4) Carry out insulation test (see Section 6.1);
（
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；
(5) Check condition of all connections. Wipe away oxidations with abrasive cloth and clean with
soluble agent. Screw bolts and nuts tight;
（
6
）控制器整定值与报警故障灯显示功能测试：应使用我公司的
NDM3
EU
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；
(6) Test of controller setting values: use a tester specialized for NDM3
EU
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;
（
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
7
附件说明
详细内容进行测试）
(7) If other internal or external accessories are installed in the breaker, check them one by
2019.12.31
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