9. 使用和维护/ Application & Maintenance
9.1 运行前检查和准备
运行前应检查以下各项
(1)核对接线是否正确,见第 7 点接线方式图。
(2)确认端子间或暴露的带电部分没有短路或对地短路情况。
(3)确认端子连接和固定螺钉均应紧固无松动
(4)断路器带有欠电压脱扣器,应使脱扣器先通电,断路器才允许合闸。
9.1 Examination and preparation before working
The following items should be examined before working
(1)Check whether wiring is right; see the seventh wiring diagram.
(2)Make sure that there is no short circuit on the part between every two terminals or on exposed
electrified parts or no short circuit. to earth.。
(3)Make sure terminal connection and fixing screw are fastened.
(4)If the breaker has an undervoltage tripper, the breaker is allowed to close only when the
undervoltage tripper is electrified.
9.2 试运行 Pilot run
按 9.1 条各项全部确认无异常情况后,可以进行试运行。
(1) 扳动操作手柄,投入电源。
(2) 断路器主电路带电后,按紧急脱扣按钮,断路器应脱扣,操作手柄处于脱扣位置。如果试运行都能
满足,可投入运行。
Carry out pilot run after all items in rule 9.1 are assured normal.
(1) Pull the operating handle and switch power supply on.
(2)Press emergency release button after main circuit of the breaker is electrified. Then, the breaker
should be released and the operating handle is at released position.Operation can be carried out if pilot
run successes.
9.3 维护 Maintenance
维护检查必须有专业技术人员负责。
用户如需选用内、外附件,按所订型号由本公司提供,以保证质量。如用户自行选购或改装,本公司
不能负责。
在执行维护操作前,必须先完成下列操作:
(1)使断路器分闸;
(2)断开电源与断路器的连接(包括主电路、辅助电路)
(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)。
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:
(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;
地址:上海市浦东新区申江南路 2000 号
文件编号:NDT2920003
邮编:201315
第 22 页 共 25 页
文件版本:6
电话:(021)68586699
传真:(021)23025796
Need help?
Do you have a question about the NDM3 Series and is the answer not in the manual?
Questions and answers