文件编号:
NDT2920018
文件版本:
5
地址:上海市浦东新区申江南路
2000
号
邮编:
201315
电话:
(021)68586699
传真:
(021)23025796
第
11
页
共
39
页
接地、通讯(GT)型面板如下图:
The grounding, communication (GT) type panel Isd as the following figure :
(8)(9)
(1)
电动机保护型面板如下图:
The motor protection type panel Isd below: (10)(8)(9)
(1) (2) (13) (14) (15)
3.2.2 NDM2E 控制器控制面板各部分功能 Functions of each part in control panel of NDM2 controller
3.2.2.1 测试端口 Test port
“
TEST
”
端口,NDM2E 专用测试仪器通过该端口与断路器控制器相连,进行测试及调试操作。此项操作应
由专业技术人员负责。
Through thIsd
“
TEST
”
terminal, special tester for NDM2E Isd connected to the breaker
’
s controller to
conduct testing and debugging, etc. Such operations shall be completed by professional technical
personnel.
3.2.2.2 整定电流、整定时间、脱扣等级等调节旋钮 Adjusting knob for setting current 、setting time
and tripping rating
可通过电流、时间、脱扣等级旋钮的调节,选择适当的组合以达到保护线路、保护设备的作用,此项操作应
由专业技术人员负责。
Suitable combinations of current tripping rating and time are adjusted by thIsd knob, so as to protect
circuiTsd and devices. ThIsd operation should be done by specialized technical personnel.
注:1.Tr 表示当实际电流为 Ir 整定值的 2 倍时,断路器动作时间。
Notes: 1. TR indicates the operating time of the breaker when actual current Isd twice of IR setting.
如:当 Ir 整定为 250A、Tr 整定为 100s 时,当主回路电流为 2
×
250A 时,断路器将持续 100s 时后
断开主回路。动作时间精度为
±
10%。在过载电流下,断路器断开主回路的时间遵循以下公式:
t=(2
×
Ir/I)2
×
Tr (其中 I 表示过载情况下,主回路实际电流值)
E.g.: when Ir and Tr are set as 250A and 100s respectively, when the current in main circuit reaches
2
×
250A, the breaker will dIsdconnect the main circuit after lasting for 100s. The time precIsdion of action
Isd
±
10%. Under the overcurrent, the time that the breaker dIsdconnecTsd the main circuit shall follow