1、安全指導在安裝、操作和運行本溫控器前,請仔細閱讀本說明書,并妥善保管。! 警告 !注意 一、產品概述本儀器是為干式變壓器設計的新一代電腦溫度控制器,它采用先進的計算機控制技術和數據存貯技術設計而成,且在設計中采用了硬件和軟件相結合的抗干擾措施,使產品具有了極強的抗干擾能力。本儀器能保證干式變壓器在正常的溫度范圍內安全地工作,是保護干式變壓器的重要裝置。溫控器的各種控制參數只需通過面板上幾個按鍵的設置就可實現,而且設定的參數在停電后永不丟失。本儀器還具有“黑匣子”功能,可記錄變壓器掉電時刻三個繞組的溫度,以供查詢。在使用方面,本儀器具有操作簡單、安裝方便、維護容易的特點。本產品符合JB/T761

2、3-1994變壓器用電阻溫度計標準本產品生產體系通過ISO9001質量體系認證。二、產品型號:BWDK系列電阻溫控器產品型號如下表: 三、技術參數1.測溫范圍:00C2000C2. 測溫精度:±1%FS3. 分辨率:0.10C4. 工作電壓:AC220V±10%(50Hz5. 功耗:5V A6. 傳感器:三支Pt100鉑熱電阻,三支PTC熱電阻(選件7.繼電器觸點容量:10A/250V AC8. 儀表重量:<3Kg9. 外形尺寸:260×200×80(mm10. 模擬量輸出:三路4-20mA電流,或三路1-5V電壓11. 數字量輸出:RS232或R

3、S485串行通信接口四、產品功能介紹1、具有三相繞組溫度的巡回溫度顯示或最高溫度顯示功能。2、可根據設定的開風機溫度和關風機溫度自動控制風機的開啟和關閉,保證干式變壓器在正常溫度下安全地工作。當三相繞組溫度中的最高一相溫度超過開風機的設定溫度或在手動開風機的情況下,風機會開啟。2.1 . 變壓器可配用2臺、4臺、6臺風機或不接風機。接有風機時,當風機開啟,則溫控器面板上相應編號的“風機”工作指示燈變為綠色。2.2 . 若某風機出現斷相故障時,則溫控器面板上該相風機工作指示燈變為紅色,同時發出蜂鳴報警聲。3、具有超溫報警功能。當三相繞組溫度中的最高一相溫度超溫時,溫控器內發出蜂鳴報警聲,同時面板

4、上“超溫”燈亮,“超溫”輸出端子(13、15端輸出一個閉合開關信號。4、具有自動跳閘功能。當三相繞組溫度中的最高一相溫度達到跳閘溫度時,溫控器內發出蜂鳴報警聲,同時面板上“跳閘”燈亮,“跳閘”輸出端子(11、12端輸出一個閉合開關信號。5、具有傳感器故障報警功能。傳感器故障時,溫控器面板上的“故障”指示燈亮,溫控器內發出蜂鳴報警聲,“故障”輸出端子(14、15端輸出一個閉合開關信號。5.1 指示燈不同顏色代表不同相傳感器故障:黃色代表A相,綠色代表B相,紅色代表C相,不亮時,代表傳感器工作正常。5.2 通過溫度顯示區顯示不同的代碼來區分傳感器短路和開路故障:在溫度顯示區顯示H表示開路,顯示L表

5、示短路。5.3 傳感器一相或兩相故障時,只根據未故障傳感器的溫度信號控制風機,三路傳感器同時故障時立即開啟風機。6、具有參數設置功能。可通過溫控器面板上的按鍵直接設定關閉風機溫度、開啟風機溫度、超溫報警溫度、超高溫跳閘溫度、定時開風機時間、本機通信編號及所控制風機的臺數。在停電后設置數據不丟失。7、具有手動控制風機功能。可通過溫控器面板上的“手動風機”鍵手動開啟風機。此功能也可作為測試風機功能使用。8、風機控制型溫控器具有定時開啟風機的功能,用戶可在面板上進行0255個小時任意設置(當設置為0時,表示取消此項功能,定時時間到達后,風機自動運行1分鐘后停止。出廠時設置在24小時。9、具有“黑匣子

6、”功能。溫控器自動將斷電時刻三相繞組的溫度記錄在內存中,以備查詢。為了避免再次通電后斷電而改變記憶數據,規定溫度低于800C 時,不刷新原來記錄的溫度。五、產品操作說明 圖1 面板圖1. 首次上電:當溫控器一接上電源,就處于巡回溫度顯示狀態。巡回顯示A、B、C三相繞組溫度(字母D代表環境溫度。2.最高溫度顯示狀態與巡回溫度顯示狀態切換:面板上有一個“最高/+”鍵,在巡回溫度顯示狀態按一下“最高/+”鍵,則溫控器面板上的“最高”燈亮,溫控器進入最高溫度顯示狀態,固定顯示三相繞組中的最高相溫度;再按一下“最高/+”鍵,則溫控器面板上的“最高”燈滅,此時溫控器切換回巡回溫度顯示狀態。3.手動開風機:

7、面板上有一個“手動風機”鍵,在溫度顯示狀態按一下“手動風機”鍵,則強制開啟風機,同時溫控器面板上的“手動”燈及相應編號的“風機”工作指示燈亮;再按一下“手動風機”鍵,則取消手動開啟風機功能,同時溫控器面板上的“手動”燈及相應編號的“風機”工作指示燈滅。4. 掉電數據查詢功能:面板上有一個“查詢”鍵,在溫度顯示狀態連續“查詢”鍵則依次顯示上次掉電時A、B、C三相繞組溫度。5.控制參數的查詢 六、控制參數的修改 關風機溫度,且最小間隔為5 0C。七、BWDK-3208B/C型溫控器使用說明如下: 圖22.BWDK3208C型溫控器:是將BWDK3208B型溫控器三路420mA模擬電流終端分別串25

8、0電阻而轉化為三路15V模擬電壓輸出。3.BWDK-3208D/3208E型溫控器,帶有RS232/RS485計算機串行通信接口,其中RS485通過電源板上31、32接線端輸出,31端為正端、32端為負端。RS232通過電源板上31為數據接收端,32為數據發送端,33為地線。八.產品電氣接線 (圖3 圖31、傳感器連接:插入繞組的PT100鉑電阻傳感器和PTC傳感器(選件通過15針插座,將傳感器信號輸入到本儀器內。2、風機連接:可接2臺風機(接入1、2端 、4臺風機(接入1、2 、3 、4端 、6臺風機(接入1、2、3、4、5、6端 。當選擇2臺或4臺風機時,風機接線端子不能接錯,否則報警。3

9、、跳閘、超溫、故障輸出端連接如圖3所示,11、12端;13、15端;14、15端在溫控器內部是分別接3個繼電器常開觸點。11、12端輸出跳閘信號,13、15端報警信號,14、15端輸出故障信號。當出現跳閘、超溫或傳感器故障時,相應的繼電器觸點吸合(接通,輸出跳閘、超溫報警或傳感器故障信號。4、用戶接線區:如圖3所示,2126六個雙向空接線端是預留給用戶使用。5、溫控器總電源:通過16、17接線端從外部接入AC220V 交流電。九,產品外形與安裝:產品外形圖見圖4: 安裝形式有以下兩種:1、支架式安裝(圖5 1.1支架上;1. 2.用M10螺栓將支架固定在變壓器夾件或其他所需地方(見圖5。 2、

10、嵌入式安裝BWDK Series Temperature ControllerUsers GuideThis Guide contains important safety and operating instructions for the BWDK Series Temperature Controller. It is intended for a skilled electrician or technician who needs to install, operate or maintain the BWDK Series Temperature Controller. Insta

11、llers should be certified and familiar with all local and national codes regarding electrical installations of this nature.Read this manual thoroughly and be sure you understand it before attempting to use the BWDK Series Temperature Controller and use the BWDK Series Temperature Controller correctl

12、y according to the information provided. Keep this manual in a safe place for easy reference.WARNING:1.Only qualified personnel should install, operate, inspect and maintain this controller.2.Input power supply: 220V AC(±10%, 50Hz3.Ensure all electric parts are properly connected and fastened.4

13、.Do not touch any exposed live parts when the controller is powered on.5.Terminal 1, 2, 3, 4, 5, 6, 7, 16 and 17 are connected to dangerous voltages.6.Do not short-circuit the fan-output terminal 1, 2, 3, 4, 5, 6 and7.7.Disconnect the controller from the power transformer before making any tests. Fa

14、ilure todo so could cause damage to the controller.CAUTION:1.The controller can only be used for the specified purpose. Unauthorized modification orusing unauthorized accessories may cause malfunction.2.Do not expose the controller to corrosive gases, such as SO2 or H2S.3.Make sure the controller is

15、 connected properly before power on.4.Do not burn the sensor probe with a lighter for test. The temperature of the flame isaround 800°C.5.Do not energize contacts with voltage or current exceeding the rated values.The BWDK Series Temperature Controller is a precision tool. Please handle it with

16、 care, and store it in a dry and clean environment while not in use. Failure to do so may cause controller failure.Meanings of Abbreviations and Acronyms:Controller: the BWDK Series Temperature Controller.LED: Light Emitting Diode, the indicating lamps on the front panel.SSR: Solid-State Relay1.Intr

17、oductionThe controller is designed to monitor and control the coil temperatures of a three-phasedry-type electrical transformer.Base on microcomputer, the controller uses both hardware and software anti-inference technology to ensure that it can work under severe environment.The control parameters c

18、an be entered through the keypad on the front panel. They will not be lost during a power outage.The coil temperatures would be recorded in a device called black-box before the power cutting out.The controller functions as a black box during a power outage. It records the coil temperatures before th

19、e power outage for future reference.The controller is ease to install, operate, and maintain.The BWDK Series Temperature Controller is manufactured under the standard requirements of JB/T7631-1994 Resistance Thermometer for Transformer. It has passed the comprehensive and strict tests by government-

20、authorized testing institution. The manufacturer has passed the ISO9001 International Quality System audit. Every unit of the products is guaranteed qualified under various rigorous operating environments.2.Configuration Table 3.Technical Parameters1.Temperature Measure Range: 0°C 200°C2.T

21、emperature Measure Accuracy: 0.5%FS±0.1°C3.Resolution: 0.1°C4.Power Supply: Single phase 220V AC±10% (50Hz5.Capacity: 5VA6.Sensor: 3 PT100 thermistor, and 3 PTC thermistor(optional7.Relay Contact Capacity: 10A/250V AC8.Ambient temperature: -20°C +50°C9.Relative humidity

22、: 90%10.Weight: 2.5kg11.Outline Dimension: 260×200×87(mm12.Simulative Analog Data Outputs: 3 outputs of 4-20mA or 1-5V13.Digital Data Outputs: standard communication interface RS232 or RS4854.Function Features1.The controller is able to circularly display the coil temperatures of a three-p

23、hase transformeror to display the highest coil temperature among the three phases.2.The user can set both fan starting and stopping temperatures so the transformer can work in asafe atmosphere. The fans will start when the highest coil temperature is above the fan starting temperature and stop when

24、all coil temperatures are below the fan stopping temperature. The fans can also be operated manually.corresponding fan LEDs on the front panel will turn green when fans are started.alarm will sound.3.Over-Temperature Alarm: When the highest coil temperature exceeds the upper limittemperature T3, the

25、 “Over-temperature” LED on the front panel will turn on and an alarm will sound. Meanwhile, the micro-switch between terminal 13 and 15 will be closed.4.Trip Alarm: When the highest coil temperature exceeds the uppermost limit temperature T4,the “T rip” LED on the front panel will turn on and an ala

26、rm will sound. Meanwhile, the relay between terminal 11 and 12 would be closed.5.Sensor Failure Alarm: If a sensor malfunction occurs, the “M alfunction” LED on the frontpanel will turn on and an alarm will sound. Meanwhile, the relay between terminal 14 and 15 would be closed.5.1Different color LED

27、s indicate the phase of sensor malfunction: yellow for phase A, greenfor phase B and red for phase C. The sensors are working normally when all the LEDs are off.5.2Different letters on the front panel display indicate the type of sensor malfunction: Hindicates sensor disconnection while L indicates

28、sensor short circuit.5.3When one or two sensors malfunction, the controller will operate the fans base on thesensor that runs normally. If all 3 sensors malfunction at same time, the fans will startimmediately.6.The user can set the temperatures and other parameters by pressing the keypad on the fro

29、ntpanel:6.1Temperature T1: when one temperature rises to T1, the fans will start to cool thetransformer.6.2Temperature T2: when all temperatures fall below T2 after the fans cooling thetransformer, the fans will switch off.6.3Temperature T3 (Over temperature: when the highest coil temperature exceed

30、s T3, thealarm will sound and the relative relay will be closed.6.4Temperature T4 (Trip temperature: when the highest coil temperature exceeds T4, thealarm will sound and the relative relay will be closed.6.5Fan start time: set the time for the fans to start.6.6Number of fans: set the number of fans

31、 that should control.6.7Saved data: set if the data should be stored when the power is cut off.7.Manual Control: The fans can be controlled manually by pressing the “Manual” key on thefront panel. This function can also be used for testing the fans.8.Fan Auto-Starting: the user can set the time inte

32、rval (0255 hours to start the fansautomatically for one minute. This function can be used to check the fans periodically. The default value for fan to start automatically is every 24 hours. A setting of 0 hours will not start fans.9.Black Box: The controller will record the coil temperatures automat

33、ically during a powercut-off. These data can be used for analysis purpose later. To avoid the recorded data to be changed when power supply is back on, the controller was designed not to update therecorded data until when the temperature is over 80°C.5.Operation Instructions Figure 1: Front Pan

34、el1.Power on for the first time: mount the controller on the transformer properly and connect it to220V AC power supply. By default, the controller will display the coil temperatures of phase A, B, and C circularly. D indicates atmosphere temperature.2.Switching between displaying the highest coil t

35、emperature only and displaying all three coiltemperatures and atmosphere temperature: the user can choose to display the highest coiltemperature only or all three coil temperatures and atmosphere temperature by pressing the “High/+” key on the front panel. The Highest LED on the front panel will ind

36、icate when only the highest temperature is displayed.3.Fans manual control: the user can start the fans by pressing the “Manu al” key on the frontpanel. At the same time, both the “Manual” LED and “Fan” LED will turn on. Press the“Manu al”key again, the fans will stop and both the “Manual” LED and “

37、Fan” LED will turn off.4.Temperature data inquiry: When the controller loses the power and be powered on again, theuser can check the coil temperatures in turn by pressing the “Inqu/-” key in succession. The temperatures were stored automatically when the power supply was cut off.5.Control parameter

38、s inquiry: 6.Control Parameter Settings 7.Additional Functionstemperatures of phase A, B and C through terminal 3134, 3234 and 3334 respectively. The relation between the output and the temperature is: 420mA corresponds to 0200°C. Every ° output by connecting a 250 resistor in series respe

39、cti vely.The interface can be used for remote communication with other automation system. Theconnecting terminals are 31(+ and 32(.8.Electric Circuitry Figure 3: Electric Circuitry1.Sensor connection: Insert the external 15-pin plug which connects to PT100 and PTC(optional thermistor into the 15-pin socket. The socket can be provided by thema