5X00286H13 模块备件

5X00286H13 

为额定值的电流和电压生成一个对称系统。
检查计算值。建议使用三相电流和电压测试仪测试电源。通过改变电流和
电压系统：无功和有效值以及cosБ的计算可为：
选中的。
5.7测试保护功能
确保运输或安装不会造成任何损坏
在REF542plus上运行保护设备和系统的二次测试
具有配置的保护功能的保护和控制单元。
警告使用适当的测试装置进行二次测试时，务必遵守适用的安全规定。
注意：测试时，确保不超过测量输入和辅助电压电源的极限值。
建议在保护装置调试期间进行二次功能测试
功能。
激活和配置的自动重合闸以及
应测试整个系统和电源断路器，以确保这些功能的安全运行。
以下几点对于必须工作的保护功能特别重要：
与设定的方向或能量流动量相关。
检查传感器和变压器连接，并检查电站电路图的接线
确定变压器方向
测试集的连接和文档
测量值记录的测试和记录
保护功能的设置参数
记录测试设置
监测特定保护功能的正确方向测试，并与测量的功率和功率因数进行比较，以防发生后一次初级故障
测试时，应在二次测试中记录以下信息：
测试集的方向设置
有效功率和无功功率的测量以及cosБ因子的测量
测量和保护功能的方向设置
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39/80
6.故障排除
在本章中，您将找到以下信息：
中央单元自检
人机界面自检
通过自检，可以检查REF542plus的正确功能。它是
建议在REF542plus的卸载条件下进行自检。
至少不应保留与主系统的连接。除此之外，升级
还将描述固件。
6.1安全信息
如果对邮件的处理有任何疑问，请与我们联系
服务代表。
6.2所需设备和设施
6.2.1正弦发电机
如果使用模拟输入，发电机必须具有以下功能：
带有电流和电压互感器的REF542plus：
精度等级：0.5

电流输出：1个相应的5A 50Hz交流小值

电压输出：小100 V 50 Hz交流

电压输出：2 VRMS 50 Hz交流
如果使用模拟输入，发电机必须具有以下功能：
带有电流和电压传感器的REF542plus：
精度等级：0.5

电流输出：小150 mV 50 Hz交流

电压输出：小2 VRMS 50 Hz交流
6.2.2可调电源
具有以下特征：

电压输出：30–240 V直流
功率：500 VA
精度等级：5，<12%纹波
6.2.3个人计算机
PC（通常为笔记本电脑）必须至少提供一个RS232端口，用于串行通信
分别用于通信和数据传输。两个RS232端口将提供更好的操作
条件因此，必须安装以下软件：
•REF542plus官方发布的配置软件（例如V4B01）
•Tera Term Pro软件
6.2.4 Tera Term Pro
Tera Term Pro是一个用于PC之间通信的免费终端程序
以及REF542plus的硬件

5X00286H13 

5X00286H13 

Generate one symmetrical system each for current and voltage with the rated values.
Check the calculated values. A three-phase current and voltage tester is recommended to test the power. By changing the phase angle between the current and the
voltage system the calculation of reactive and effective values and of cos ϕ can be
checked.
5.7 Testing the protective functions
To ensure that no damage has been caused by transport or setup and installation of
the protection equipment and systems, secondary tests are run on the REF542plus
protection and control unit with the configured protective functions.

Warning! Always observe the applicable safety regulations when conducting the secondary test with an appropriate test set.

Caution When testing ensure that the limit values of the measuring inputs and the auxiliary voltage supply are not exceeded.
Secondary function tests are recommended during commissioning of the protective
functions.
The activated and configured automatic auto reclosure and also other functions of the
complete system and the power circuit-breaker should be tested to ensure safe operation of these functions.
The following points are particularly important for protective functions that must work
in connection with a set direction or energy flow quantity.
Checking the sensor and transformer connections and wiring check of the station circuit diagram
Determining the transformer direction
Connection and documentation of the test set
Testing and documentation of the measured value recording
Setting parameters for the protective functions
Recording the test settings
To monitor the test of the correct direction of the specific protective functions in comparison with the measured power and power factors in the event of a later primary
test, the following information should be documented in the secondary tests:
Directional setting of the test set
Measurement of the effective and reactive power and of the cos ϕ factor
Directional setting of the measurement and protective functions 
REF 542plus switchbay protection and control unit
Manual Part 3: Installation and Commissioning
1VTA100004-en DMS,2001-10-04 REF542plus: Installation and Commissioning 39 / 80
6 Troubleshooting
In this chapter you will find information on
Self test of the Central unit
Self test of the HMI
By means of the self test the proper function of the REF542plus can be checked. It is
to be recommended that the self test is done in uninstall condition of the REF542plus.
At least no connection to the primary system should be left. Beside that, the upgrade
the firmware will also be described.
6.1 Safety Information
If there is any doubt regarding the treatment of a message, please check with our
service representative.
6.2 Required devices and facilities
6.2.1 Sinusoidal generator
The generator must have the following features in case of using the analog inputs of
the REF542plus with current and voltage transformers:

Accuracy class: 0.5

Current output : 1 respective 5 A 50 Hz AC minimum

Voltage output: 100 V 50 Hz AC minimum

Voltage output: 2 VRMS 50 Hz AC
The generator must have the following features in case of using the analog inputs of
the REF542plus with current and voltage sensors:

Accuracy class: 0.5

Current output : 150 mV 50 Hz AC minimum

Voltage output: 2 VRMS 50 Hz AC minimum
6.2.2 Adjustable power supply
with the following features:

Voltage output: 30 – 240 V DC

Power : 500 VA

Accuracy class: 5, <12% ripple
6.2.3 Personal computer
The PC (usually laptop) must be provided with at least one RS232 port for serial
communication respectively data transfer. Two RS232 ports will give better operation
condition. Thereby, the following software must be installed:
• REF542plus official released configuration software (example V4B01)
• Tera Term Pro software
6.2.4 Tera Term Pro
Tera Term Pro is a freeware terminal program for communication between the PC
and the hardware of the REF542plus, the Central