5X00230G01 模块备件

5X00230G01 

电压互感器
使用电压互感器进行相同极性测试或贴片测试。区别在于
电池连接到二次侧和模拟直流测试仪器
连接到电压互感器的初级线圈。
检查核心的测试设置如下图所示。
五、
+
–N
A
n
e
n
+
–
图17：电压互感器的极性测试
每个核心都必须在这里测试。
如果电流互感器部分中描述的用于记录磁化特性的变量具有足够高的输出电压（例如500V），则它也可以是
用于运行电压互感器变比的定性测试。这个
可变电压施加到电压互感器的初级侧，电压表用于测量相应变压器或保护柜端子处的次级电压。
5.5.3电流传感器
由于电流传感器Rogowski线圈是一个空心线圈，因此必须对其进行与电流互感器相同的极性测试。
测试设计如下图所示。电池可能需要更高的电压值。
+
–
P2
P1
五、
+
–S2
S1
图18：电流传感器（罗戈夫斯基线圈）的极性测试
变换比的测试与电流互感器完全相同。显示在
也可以同时检查REF542保护和控制单元。不是
必须记录Rogowski线圈的磁化特性，因为：
无饱和特性的空心线圈。
REF 542plus开关间保护和控制单元
手册第3部分：安装和调试
1VTA10004 en DMS，2001-10-04参考542 Plus：安装和调试37/80
5.5.4电压传感器
电压传感器是电阻式精密分压器，其极性为
如下图所示进行检查。电压的正确极性为：
通过向次级施加适当的直流电压（例如24V/DC）进行测量
终端。如果变比为：
非常高。同时检查电阻分压器的变比
时间
+
–
N
A.
五、
+
–n
一
图19：电压传感器的极性测试（电阻分离器）
5.6测试测量值记录
变压器和传感器的正常工作对于正常工作非常重要
REF542plus的。为此，必须测试机组的测量值处理和设定的额定值。
相电流和相电压必须作为测量输入量。
所有其他测量值均为从中得出的量。
测试如下：
检查设置的额定值是否与用户要求的额定值匹配（在
订单文档）。
如有必要，从REF542plus将应用程序加载到PC中。
在中选择菜单项主菜单/设置/连接/模拟输入
配置程序。额定值显示在出现的对话框窗口中，如有必要，可进行更改。
测试变压器或传感器的接线
从REF542plus断开传感器或传感器。
电流互感器必须短路，组合传感器必须断开。
将测试集连接到REF542plus。相关的电流和电压信号为：
应用于模拟输入。
在测试装置上设置所需的额定值
表11：电流和电压信号的额定值
传感器/传感器额定值
电流互感器1A或5A
电压互感器100V
罗戈夫斯基线圈150 mV
电压传感器2V
REF 542plus开关间保护和控制单元
手册第3部分：In

5X00230G01 

5X00230G01 

 Voltage transformer
The same polarity test or patch test is run with voltage transformers. The difference is
that the battery is connected to the secondary side and the analog DC test instrument
to the primary coil of the voltage transformer.
The test setup for checking a core is shown in the following figure.
V
+
– N
A a
n
e
n
+
–
Figure 17: Polarity test of voltage transformers
Every core must be tested here.
If the Variac described in the current transformer section for recording the magnetizing characteristic has a sufficiently high output voltage (e.g. 500 V), it can also be
used to run a qualitative test of the voltage transformer transformation ratio. The
Variac voltage is applied to the primary side of the voltage transformer and a voltmeter is used to measure the secondary voltage at the corresponding transformer or protective cabinet terminals.
5.5.3 Current sensor
Because the current sensor, the Rogowski coil, is an air-core coil, it must be subjected to the same polarity test as the current transformers.
The test design is shown in the following diagram. A higher voltage value may be required for the battery.
+
–
P2
P1
V
+
– S2
S1
Figure 18: Polarity test of current sensors (Rogowski coil)
The transformation ratio is tested exactly as with a current transformer. The display in
the REF542 protection and control unit can also be checked at the same time. It is not
necessary to record a magnetizing characteristic with the Rogowski coil, because it is
an air-core coil with no saturation characteristics. 
REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 37 / 80
5.5.4 Voltage sensor
The polarity of the voltage sensor, which is a resistive precision voltage divider, is
checked as shown in the following diagram. The correct polarity of the voltage is
measured by applying an appropriate DC voltage (e.g. 24V/DC) to the secondary
terminals. The auxiliary voltage source can also be used if the transformation ratio is
very high. The transformation ratio of the resistive divider is checked at the same
time.
+
–
N
A
V
+
– n
a
Figure 19: Polarity test of voltage sensors (resistive splitter)
5.6 Testing the measured value recording
Proper functioning of the transformers and sensors is important for proper functioning
of the REF542plus. The measured-value processing of the unit and the set rated values must be tested for this reason.
The phase currents and phase voltages must be taken as measured input quantities.
All other measured values are quantities derived from them.
Test as follows:
Check whether the set rated values match the rated values required by the user (in
the order documentation).
If necessary, load the application into the PC from the REF542plus.
Select the menu item Main Menu/Settings/Connections/Analog Inputs in
the configuration program. The rated values are shown in the dialog window that appears and, if necessary, changed.
Test the wiring of the transformers or sensors
Disconnect the transducers or sensors from the REF542plus.
The current transformers must be short-circuited, combination sensors disconnected.
Connect the test set to the REF542plus. The relevant current and voltage signals are
applied to the analog inputs.
Set the required rated values on the test set
Table 11: Rated values of the current and voltage signals
Transducer/sensor Rated value
Current transformer 1A or 5A
Voltage Transformer 100V
Rogowski coil 150 mV
Voltage sensor 2V 
REF 542plus switchbay protection and control unit
Manual Part 3: In