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广东瑞智电气有限公司
  【广东瑞智电气有限公司】
广州 广高电气有限公司
  【广州 广高电气有限公司】
 
LW-TPCS变压器试验测控系统 中英文介绍
LW-TPCS变压器试验测控系统
(变压器特性试验台)
 
注:标准型介绍,对于110kV级以上变压器试验站需要单独设计。
 
Note: this is a information for our standard production, for more than 110 kv transformer experiment stations need separate design.
 
(一)、“系统”的组成 System composition
“系统”主要由以下几部分组成:this system are consisted by following units:
1、自动、手动、现场监控三合一操作台:包括工控机、激光打印机、液晶显示器、液晶数字仪表、控制按钮、过流保护、过压保护、数据锁定、现场视频监控等。
1. Automatic, manual and on-site monitoring three-in-one work console:Including industrial computer, laser printers, LCD, LCD digital instrumentation, control button, over-current protection, over-voltage protection, data lock, the scene video monitoring, etc.
 
2、低压控制柜:包括继电器、接触器、低压电压互感器、低压电流互感器等。
2. Low voltage control cabinet: including relays, contactor, low voltage transformer (low voltage PT), low voltage current transformer(low voltage CT), etc.
 
 
3、配套仪器:10A电阻仪、变比仪、8路温度巡检仪
3. Auxiliary instrument: 10A resistance meter, transformer ratio tester, 8 lines of temperature inspection instrument
 
 
(二)、“系统”的主要功能:System main functions:
 
“系统”能按国家标准,对电力变压器(干变、油变、非晶合金、特种变等)进行部分出厂试验和型式试验。具体试验项目包括:
This system can run the products inspection tests and type tests for power transformer (dry type,oil type and special type). The detail test items as  following:
 
1、空载试验:空载损耗的测量及空载电流的百分数的测量及换算。
No-load test: no-load loss measurements and the percentage of idle current measurement and conversion
2、负载试验:负载损耗的测量及阻抗电压的测量及换算至参考温度。
Load test: load loss measurement and impedance voltage measurement and conversion to reference temperature.
 
3、感应耐压试验:可绘制过程电压、电流曲线(放电现象、击穿现象一目了然)。
Induction withstand voltage test: it can draws process voltage, current curve (discharge phenomena, flashover breakdown phenomenon be clear at a glance
4、空载电流谐波分析:到19次谐波,并计算出失真度。
No-load current harmonic analysis: can be analyzed to 19 times harmonics, and calculates the distortion degree.
 
5、试验电源频率、环境温度及发电机励磁电压、励磁电流的测量。
The measurement of Test power frequency, environmental temperature and generator excitation voltage, excitation current.
 
6、辅助功能:工频耐压、绝缘电阻、雷电冲击、油化验、局放等试验数据的输入,以使挡案数据及试验报告之完整。
auxiliary function:The data input of industrial frequency voltage, insulation resistance, lightning shock, oil test, partial discharge test, etc, to complete the file data and test report .
 
7、建立试品档案库。Establish tested object archive
 
8、档案库管理:包括浏览、查询、修改、打印等。
Archive management: including browse, search, modification and printing, etc.
 
9、打印试验报告和试验纪录。Printing test reports and test record.
 
10、试验现场视频监控。Testing site video monitoring.
 
11、电压、电流六通道模拟示波器显示。
     six channesl of analog oscilloscope display for voltage and current.
 
12、主回路计算机模拟屏显示:直观的显示电送到何处。
      The main circuit computer simulation screen: it is a intuitive display for where electricity to be sent.
 
 
13、直流电阻测量。Dc resistance measurements
14、变比测量。transformer ratio measurement.
15、温升试验。Temperature-rise test
16、过流、过压保护;声、光报警;急停按钮保护。
Over-current, over-voltage protection; Sound and light alarm; Abrupt stop button protection.
 
(三)、“系统”的技术参数: System technical parameters:
1、多功能电压表:Multifunction voltage meter:
        量程:Range: 0-100V,根据互感器倍率最大可显示99999V。
        It can displays to 99999V according to the transformer magnification
        分辨率:Resolution: 0.001V
        精度 Accuracy:0.2 class 级
2、真有效值电流表:True effective value current meter
        量程 Range:0-5A,根据互感器倍率最大可显示99999A。
         It can displays to 99999A according to the transformer magnification
        分辨率:Resolution:0.001A
        精度Accuracy:0.2 class级
3、低功率因数功率表: power meter of low power factor
        量程Range :电压for voltage: 0-100V,电流for current:0-5A,根据互感器倍率最大可显示99999W。
It can displays to 99999W according to the transformer magnification
 
        分辨率Resolution:0.1W
        精度accuracy :0.2class 级(功率因数power factor :0.1)
4、多功能表:Multi-functional meter
    ⑴频率:frequency:
            量程Range:0-500Hz。
            分辨率Resolution:0.01Hz
            精度Accuracy:0.5class 级
    ⑵环境温度:Environment temperature
            量程Range :0-200℃。
            分辨率Resolution :0.1℃
            精度Accuracy:0.5 class 级
    ⑶发电机励磁电压、励磁电流: Excitation voltage, excitation current of generator :
 
            量程Range :based on the parameters of generator 根据发电机参数。
            分辨率Resolution:0.1
            精度Accuracy :0.5class 级
 
 
(四)、“系统”的技术特点:System technical characteristics:
    1、“系统”采用手动、自动双系统工作方式。
 
System are double way to work:manual and  automatic
   
相互独立的两套测量和保护系统,在一套有问题时可用另一套继续工作。
              System has independent of each other two sets of measurement and protection units, one set of unit can works right along when another set of unit  in questions.
 
自动方式可完成从升压、采集、计算、降压、存档、打印整个过程的全自动化操作。手动方式与传统方式相似,但操作更方便,仪表显示参数多,调节便利,并设有数据锁定功能。
Automatic mode can completes from step up voltage, collection, calculation, step-down, file and print all of the whole process automation.
 
    2、低功率因数测量Low power factor measurement
 
“系统”采用高性能DSP技术,纯电阻取样,与进口功率分析仪原理相同,可用于低功率因数试验场合的测量。
This System adopts high performance DSP technology to take sample of pure resistance, it has the same working principle with advanced power analyzer in the world. can be used for low power factor test occasions measurement. It can be used for low power factor test measurement.
 
 
    3、双重、快速过流保护、过压保护
Double way and rapid over-current protection, over-voltage protection
一个周波内(20ms)开始动作,反应快速;并且为手动测量、自动测量双重保护;能显示过流、过压相。
It can begin to action in one cycle wave with a quick response; And it is also double way protection for manual measuring and automatic measurement ; it can display over current, over voltage phase.
 
4、仪表读数直读 the meter reading can be read directly
自动识别电压互感器、电流互感器倍率,所有读数均为直读。(需提供各档位置信号)
Automatic identification the rate of voltage transformer  and  current transformer,all meter reading can be read directly.  ( but the signal of each gear should be supplied) 
 
5、仪表采用带橘黄色背光的液晶屏 Instrument used the LCD backlight with orange
适用于强光、弱光、逆光等各种现场环境。
Suitable for such as highlight, weak light,backlight,Various kinds of  environments.
 
6、读数准确Meter reading is accurate
所有读数来自同一周波,读数准确迅捷,对调压器刹车无要求
All meter reading from the same cycle wave, readings are quick and accurate . And no requirement for pressure regulator brake.
 
7、模块化设计、接口简单;关键模块均有备件,维护简单快捷;系统对试验线路各个开关点均有监测并带有自检功能及零位启动等多种保护功能;增加了试验安全性。
Modular design, connector is simple;
all Key module have spare parts.simple maintenance  is simple and fast;
 System with monitoring for each switch of testing lines , and also with self-check function , zero start-up and various protecting function;
Increased test security.
 
 
8、大大降低了温升试验的工作强度;配备专为油变、干变温升试验定制的多种温度探头;温升过程监测、热电阻测量、打印热电阻曲线(如下图所示)、温升计算全自动。
(转下页)
 
Greatly reduces the working strength;
various specially designed temperature probe (sensor) for temperature rise test of oil transformer,dry transformer be equipped on system.;
Temperature rising process monitoring, thermal resistance measurements, printing thermal resistance curve (shown below), normal temperature calculation are all automatically.
 
9、显示的参数全   All the parameters displayed. Following data can  be displayed.
      均值线电压Mean line voltage:UAB,UBC,UCA,(UAB+UBC+UCA)/3
    有效值线电压RMS line voltage:UAB,UBC,UCA,(UAB+UBC+UCA)/3
      均值相电压Mean phase voltage:UAO,UBO,UCO,(UAO+UBO+UCO)/3
    有效值相电压RMS phase voltage:UAO,UBO,UCO,(UAO+UBO+UCO)/3
  真有效值相电流real RMS phase voltage:IA,IB,IC,(IA+IB+IC)/3
            损耗 loss:PA,PB,PC,∑P
        其他参数others parameter :环境温度,电源频率,发电机励磁电压、励磁电流。Environmental temperature, power frequency, generator excitation voltage, excitation current.
       除以上参数外,计算机还可显示功率因数、视在功率。
     Except above, The computer can also display power factor,apparent power
  10、数据传送采用RS-485接口,传输距离远,抗干扰能力强。
Data transfer adopts RS - 485 interface,it has long distance transmission, strong anti-jamming capability
  11、系统供电采用带保护功能的隔离电源,防止过电压冲击对系统的损坏。
System power supply is isolated source with  protection function to prevent the damage of overvoltage impact.
 
系统的保护 System protection
保护分人身保护和设备保护两类
System Protection contains personal protection and equipment protection:
(一)、人身保护 for personal protection:
1、急停按钮 Scram button
为了在试验过程中发现紧急情况时快速断开电源,系统分别在操作台、控制设备上设有急停按钮,以备急用。
In order to cut the power in emergency of test process ,  the scram buttons are equipped on  operator console and control device for urgent need.
2、警灯、警铃、及监视系统 Lights, sirens, and monitoring system
    系统设置警灯、警铃按钮,监视系统,以示提醒。
The alarm system setup lights, alarm bell and monitor system to remind operator.
 
(二)、设备保护Equipment protection
为了保护设备运行安全,系统设有四级保护,输入级保护、输出级保护、测量级保护,试品级保护,以保证试验过程中在试品故障或其他不正常时能及时报警并迅速做出处理;同时锁定故障瞬时电流电压值,以便分析故障类型,保护动作后,系统会给出相应的提示,以便确定故障位置。
In order to protect the equipment safety operation, the system has 4 level protection: input level protection, output level protection, measuring level protection, tested object level protection to make sure display an alarm and make rapid action under tested object breakdown and other abnormal; Meanwhile locking fault instantaneous current voltage values so that easy for  failure analysis.
 after proctection action,the system will display corresponding prompting  so as to determine the fault location.
1、输入级保护 About input level protection:
在调压器和电动机的输入端设置空气断路器,以保护调压器和电动机输入端不过电流,并可作为输出级保护的后备保护。
an air circuit breaker are set at input end of motor and  regulator to protect the input end ofregulator and motor no current , and at the same time, it also can be used as the standby protection of output level protection.
 
2、输出级保护 About output level protection:
在调压器和发电机的输出端设置过电压、过电流保护,依据调压器和发电机输出额定电压、电流整定。属于在计算机程序内设置的保护。主要保护调压器和发电机过电流、过电压,兼做为中间变压器的过电流、过电压保护。
In a pressure regulator and generator set the output terminal overvoltage, over current protection, according to pressure regulator and generator output rated voltage, current setting. In a computer program belongs to set within protection. The main protection regulator and generator over-current, over-voltage, and as the intermediate transformer over current, over voltage protection.
 
An over voltage and over current protection device is set at the output terminal of regulator and motor, its adjusting based on the output voltage and current of regulator and motor.
 
It belongs a protection of computer program.
 
Its function is to protect the over voltage and over current of regulator and motor, at the same time, it also has a function to protect the over voltage and over current of intermediate transformer.
 
3、测量级保护 measuring level protection:
测量级保护还可依据测量用电流、电压互感器的额定值设置保护,以保护电流、电压互感器安全运行并作为下级保护的备用保护。
Measuring level protection can also be set based on the rating data of PT of measuring voltage or CT of measuring current ,so as to protect the safe operation of PT and CT, and also can be used as backup protection of lower stage .
 
4、试品级保护 Tested object level protection
在被试变压器的输入端设置过电压、过电流保护,依据被试变压器试验所用的电压、电流整定。属于在计算机程序内设置的保护。特别在小型变压器故障但有达不到上级保护定值时保护被试变压器的有效手段。
By trying in the input voltage transformer, over-current protection setting, according to the subjects were used in the transformer test voltage, current, setting. In a computer program belongs to set within protection. Especially in small transformer fault but could not reach superior protection when subjects were fixed value of transformer protection effective means.
To set an over voltage and over current protection device at input terminal of tested transformer,its adjusting based on the testing used voltage and current of tested transformer.
 
It belongs a protection of computer program.
 
It's a kind of effective protection especially once the fault arising in a less capacity / voltage grade transformer and the setting protective limits is not reached.
 
5、调压器零位保护Regulator zero protection
    为保证系统送电时调压器处在低电压位置,系统设有调压器自动回零及调压器零位启动功能。
 
 
 
In order to ensure the regulator voltage at a low voltage when power supply to the system, it has regulator automatic back to zero and regulator zero start function.
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