nader NDM3E Series Operating Instructions Manual page 33

文件编号
Doc.No.
导线相连）与外壳之间（外壳用金属箔覆盖）分别进行。
（3）对接至主电路的欠电压脱扣器，在进线与断路器外壳间。
（4）绝缘电阻不小于 20MΩ。
(1)Use a 500VDC megameter.
(2)Place the breaker in open status, carry out test between 1 -2, 3-4 and 5-6 connection boards, as
well as between the 1, 3 and 5 connection boards (connected with wires) and the breaker shell
(covered by metal foil).
(3)Test should be done in position between incoming wire and breaker shell to test Under -voltage
release in the main circuit.
(4)Insulation resistance should not be lower than 20MΩ.
注: 也可分离电子线路板后进行绝缘测试。Notes: Insulation test can also be done after separation of PCBs.
8.2 安装 Installation
请安装于金属等阻燃物上。断路器可垂直安装，也可以水平安装。Please install the breaker on
flame retardants such as metal, etc. It can be installed vertically or horizontally.
产品垂直安装时，安装面与垂直面的倾斜角度≤±22.5°。When the product is installed vertically,
the angle of inclination between the installation surface and vertical surface shall be ≤±22.5°.
Fig.14.1 Vertical installation
9、附件说明 Accessory
9.1 欠压脱扣器 Under-voltage release
断路器带有欠压脱扣器时，应使欠电脱扣器先通电，断路器才允许合闸。
If the breaker has the Under-voltage release, the Under-voltage release should be electrified
before breakers can be closed.
(1)根据外挂欠电压模块上的接线端子编号接入电源（直流电源不必区分正负极） 。
(2)在额定控制电源电压的 35%-70%时，欠压脱扣器应可靠使断路器脱扣；
(3)在额定控制电源电压的 85%-110%时，欠压脱扣器应保证断路器能合闸；
(4)在额定控制电源电压低于 35%时，欠压脱扣器应防止断路器合闸。
(1)Power supply is connected to the release according to wiring terminal nu mber of the add-on
Under-voltage module (no need to distinguish positive and negative for direct current).
NDT2920002
图 14.1：垂直安装
版次 第 5 版
Edition V ersion5
图 14.2：水平安装
Fig.14.2 Horizontal installation
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实施日期
Implementation date
20181213