故障仪说明书Word.doc

Electrocircuit earth fault fleetness testing instrumentOperating instruction manualOctober 18 , 2010Catalogue1. Deeply touched state . . . . . . . . . . . . . . . . 2 2. Technology parameter . . . . . . . . . . . . . . 3 3. Instrument face ply, . . . . . . . . . . . . . . . .3 4、Usage, . . . . . . . . . . . . . . . . . . . . . . 4 5、Service conditions. . . . . . . . . . . . . . . . . .5 6、Defend . . . . . . . . . . . . . . . . . . 6 7、Follow machine accessories . . . . . . . . . . . . . . 6 8、Follow machine technology document . . . . . . . . . . . . . . 71. SummarizeThe electric accessory and circuit ground connection are one kind of common malfunction, electric accessory once but the earth fault appears to if is necessary to stop working (except the water and electricity factory rotator is to some extent grounded), after debugging immediately , then it is possible, throw into operation. Malfunction point seeking and confirmation are that very strenuous time-consuming one job , stoppage time are increasingly long , its economic losses is increasingly big, correct greatly medium-sized generating set word, that discontinuous operation returns back to method that can weigh to electrified wire netting load , use one kind of rapid precise of energy to seek a malfunction therefore is an instrument key technology.Receive place malfunction seeking and decide a sort using direct-current electric resistance law, be to measure electrocircuit direct-current electric resistance, according to the size that the person hinders value, range ascertaining the malfunction point basically, since heavy current equipment winding direct-current electric resistance is writing brush Europe level or tiny Europe level, whose measurement error is bigger , impossibly accurate ascertain the malfunction location. Can only use manpower to chase conducting wire go over consuming time, generating set there being no elicitation line to the neuter, where this method can not judge the malfunction point in. The instrument adopt a differential to protect principle , point , practice designing that the peculiar detecting circuit can trace a malfunction rapidly accurately out prove that, that the differential protects principle law is an extremely effective in the problem resolving reality. This instrument applies to the generating set stater , the rotator; Cable; Vicinity nothing disturbance feeder line; 220 V direct-current system , 48 V know the equal electrocircuit of fast power source system earth fault fleetness testing. The instrument adopt the computer-controlled technology in miniature to handle the testing data , large screen liquid crystal display, with superordination PC machine computer communication, have data memory and history data inquiry, malfunction remote control warning waits for a function. Differential protection ground connection trouble shoot principle: 2. The technology is parametric 1. Power source: AC 380 V (A-B) 50-60Hz 2. Output voltage: AC 0-50 (in a row adjustable) 3. Export electric current: 2 As 4. The phase measures range: 0-180 5. Display: 240 X 128 liquid crystal holds 6. Power dissipation: 115 W 7. External form dimension: 438 X 325 X 218 mms 8. Mass: 18 kgs 3 .Instrument face plyFour. Usage 1. If install a driver first please having selected and matched a laptop: 1.1 puts subsidiary CD Rom of random inside CD-ROM drive: RS232-USB drives 1.1.1 installation: Open USB 2.0 TO RS232 Cable/driver, choice opens up the folder consistent with computery , the strike opens up the installation document setup 1.1.2 installation instruments driver: The strike opens the installation document setup 2. The mains switch is put in closing location , the output voltage adjusting a knob being put in zero position. 3. Adjust instrument initial state: 3.1 presses down picture connection: 3.2 on power sources, open up a mains switch , liquid crystal display is bright and the guiding lights demonstrating the INIT interface , zero position is bright, (then, be an output voltage adjust absent zero position of knob , protect circuit mutually lock , the instrument refusal to start if zero position guiding lights is not bright,invite the knob an output voltage is adjusted being put in zero position, zero position guiding lights is bright). 3.3 presses down starting Niu , starts guiding lights light, the slow whorl of clockwise sense moves an output voltage adjusting a knob , zero position guiding lights put out , the instrument have voltage to output, liquid crystal display has voltage , electric current , phase value shows, while electric current value reaches 1 A retinue, the instrument enters regular duty.3.4 opens the malfunction give an alarm receiver power source , the then voltaic sensor is received on the contrary, with the person if its sound production and lamp light flickers, changing direction, the malfunction give an alarm receiver stops sound production sum lamp light flickering , the phase instructs to be controlled by 0 degree and. 3.5 uses conducting wire to link 2 oclock according to what initial state connection diagram dotted line shows, (, malfunction give an alarm receiver sound production sum lamp light flickers be to simulate centre having an earth fault) , the phase instructs to be controlled by 180 degree and. The malfunction give an alarm receiver has an effect to work from .50 ms 3.6 opens a computer with computer connection , strike the testing picture bid opening 3.6.1 instrument job interface strikes initial interpose but interpose time. The data 3.6.2 striking the real time data but demonstrating voltage , electric current , phase synchroly with the instrument , the data having three respectively corresponding voltage of curve , electric current , phases are continuous changes at the same time. 3.6.3 strike the history data that history data already stores up carrying out inquiry. 3.7 instruments can not link with the computer the single-handed job. 3.8 adjust the instrument initial state job be over , close a mains switch. Dismantle what dotted line shows the conducting wire linking up. 4. Test 4.1 pushes down the instrument face ply function and what connection diagram shows links conducting wire. 4.2 pushes down 3.2 3.6 operation , carries out the regular testing. 4.3 jobs be over, close a mains switch , dismantle the conducting wire linking up. 5、 tests an exampleLeakage is partial to big cause seeking and selling the stater winding at reduced prices to divulge electric current and direct-current being able to bear pressure testing that the edge being able to become damp reaching loose fracture of part , be insulated in the inside of keen reaction china quality insulation crack , interlayer insulation carbonizes face to face and so on when 5.1 generator stater direct-current are able to bear pressure , telos and hand guarantee that the insulation part defect will be very keen to discovering the stater winding. Direct-current is disclosed being partial to big main cause for the telos insulation box or the hand bag insulation part has the part defect. The tradition method is surface electric potential law , test the hydraulic generator telos insulation box and hand guaranteeing that insulation surface electric potential, but existence will be safe snaking in the grass, equipment is without exception insecure to support of the people. Differential available principle follows 5.1.1 here testing connection 5.1.2 testings method- Bao Hao generator upper part (or the experiment circuit joining the actors headgear,- working a telephone switchboard as above , having been equipped with an electricity , adjusting regards on lower part) is voltaic. - use grounded stick of displacement to contact what be wrapped up the electric conduction body, the condition observing electric current and CT angle change, but the weak point being insulated conveniently for sure.5.2 Straight ground connection of winding seeks staters (or determinant electric motor) winding ground connection is that common one kind of malfunction of generator , single-phase among them determinant winding earth fault are especially common. To greatly medium-sized generator, the neuter counts the determinant winding non-earthing or going through high impedance ground connection, because the single-phase earth fault does not produce bigger malfunction electric current , determinant single-phase winding ground relaying sends out the signal or deferred tripping operation generally only. . Only respond to paying attention to arriving at the single-phase earth fault of generator sometimes is to alternate or the circle thins out the short circuit foreboding, therefore, the aircraft crew who sends a signal to determinant grounded winding god of the earth responds to the treatment informing the department concerned of closing down immediately , the generating set to deferred tripping operation should be able to throw luck after making a thorough investigation of the malfunction and trouble shooting immediately. 5.2.1 tests connection 5.2.2 testings method- work a telephone switchboard as above , having been equipped with an electricity, adjust electric current easy to test a circuit. - move electric current according to dichotomy or gold division follow principle testing a detector So-called dichotomy is that 1/2 place looking at and appraising tests electric current wind on the malfunction each other , which halves to judges that malfunctioning burns first in , continues using dichotomy to seek the malfunction point again , getting down always being able to the malfunction point be found ultimately like this; Gold division law: 0.618 times places looking at and appraising the winding overall length in malfunction tests electric current , which halves to judges that malfunctioning burns first in , continues using this law to seek the malfunction point again. 5.3 protruding pole machine rotator ground connection 5.3.1 experiments connection 5.3.2 tests method and Identical 5.2.2 5.4 cable 5.4.1 multicore cores cable5.4.2 multicore cable push down single core way, one core one core seeking. 5.4.3 tests that method is the same as 5.2.2 5.5、Nothings disturbance feeder lines method uses nothing disturbance feeder line to go ahead only , complicated circuit having disturbance with regard to, in order swear to test safety , suggest not adopting, voltage comes into being if being able to affirm the circuit nothing disturbance, this method also available. 5.5.1 tests connection5.5.2 tests method tests method with 5.2.26. Service conditions 6.1 environments temperature- 25 40 C. 6.2 altitudes do not exceed 3000 meters. 6.3 humidity: The wettest monthly average humidity is 90% , is the monthly average minimum temperatures turn to be 25 C at the same time. 6.4 uses lieu to should there be no deposition , dust affecting the gas , steam , chemistry being insulated gravely , dirt and other explosive property corrodes medium. 6.5 uses lieu to should there be no grave vibration and jolt. 7、Be maintained 8. Follow machine accessories1. 1 two core feed cable , 10 long ms 2. Voltage exports a connecting line , 5 long ms 4 (make red, green every 2 root) 3. 2 ground connection connecting lines , 5 long ms (black) 4. Direct first 3 of connecting line document (is red , green, black every 1 document) 5. Fork (6 6 pieces of mms including connection: Red , green, black every 1 document, 8 mms are red , green, black every 1 document) 6. 2 pieces of electric current sensors 7. 1 remote control receiver 8. 1 RS232-USB connecting line 9. The driver checks 1 only 10. 1 aluminium alloy aviation tool case 11. The laptop 1 (chooses an accessory , demands to deploy according to the customer)9、Follow machine technology document1. Two operating instruction manuals. 2. Electricity principle pursues two share. 3. Delivery test written report portion. 4. Product certification portion. 5. The consumer idea couples back book portion. 6. Packing list portion.JDSC-01电气回路接地故障快速测试仪使用说明书二一年十二月十八日目 录一.慨述.2二.技术参数.3三.仪器面板.3四.使用方法.4五.使用条件.6六.维护.6七.随机附件.6八.随机技术文件.7 -1-一.概述 电气设备及回路接地是一种常见的故障，电气设备一但出现接地故障都必须立即停止运行（水电厂转子一点接地除外），排除故障后，才能投入运行。故障点的查找与确认是一项十分费力费时的工作，停止时间越长，其经济损失越大，对大中型发电机组言，停止运行还会对电网负荷产生影响，因此用一种能快捷精确查找故障的方法是本仪器关键技术。接地点故障的查找与判定一般用直流电阻法，即测量电气回路的直流电阻，根据其阻值的大小，大致确定故障点的范围，由于大电流设备的绕组直流电阻为毫欧级或微欧级，其测量误差较大，不可能准确确定故障位置。只能用人工逐根导线检查耗费时间，对于中性点无引出线的发电机组，此方法不能判断故障点在何处。本仪器采用差动保护原理，设计出特殊的检测电路能快速准确地查出故障点，实践证明，差动保护原理法在解决实际问题中是极为有效的。本仪器适用于发电机组定子、转子； 电缆； 周围无干扰的馈线；220V直流系统，48V通迅电源系统等电气回路的接地故障快速测试。本仪器采用微型计算机控制技术处理测试数据,大屏幕液晶显示,与上位PC机电脑通讯,有数据存储与历史数据查询,故障遥控报警等功能。差动保护接地故障查找原理： -2-二.技术参数 1.电源:AC 380V(A-B) 50-60Hz 2.输出电压:AC 0-50(连续可调) 3.输出电流:2A 4.相位测量范围:0-180 5.显示器:240128液晶屏 6.功耗:115W 7.外形尺寸:438325218mm8.质量:18kg三.仪器面板 -3-四.使用方法 1.如果选配了笔记本电脑,请先安装驱动程序: 1.1将随机附带的光盘放入光驱: 1.1.1安装RS232-USB驱动: 打开USB 2.0 TO RS232 Cable/driver,选择打开与电脑系统一致的文件夹, 点击打开安装文件setup 1.1.2安装仪器驱动程序: 点击打开安装文件setup 2.电源开关置于关闭位置,输出电压调整旋钮置于零位。 3.调整仪器的初始状态:3.1按下图接线: -4-3.2接通电源,打开电源开关,液晶显示屏亮并显示初始化界面,零位指示灯亮,(若零位指示灯不亮,则是输出电压调整旋钮不在零位,保护电路互锁,仪器不能启动,请将输出电压调整旋钮置于零位, 零位指示灯亮)。3.3按下启动钮, 启动指示灯亮,顺时针方向缓慢旋动输出电压调整旋钮, 零位指示灯熄灭,仪器有电压输出, 液晶显示屏有电压、电流、相位值显示,当电流值达到1A左右时,仪器进入正常工作状态。3.4将故障报警接收器电源打开,若其发声并且灯光闪动,则电流传感器反接,将其转换方向, 故障报警接收器停止发声和灯光闪动,且相位指示为0度左右。3.5按初始状态接线图虚线所示,用导线连接两点,(即模拟中间有接地故障) 故障报警接收器发声和灯光闪动, 且相位指示为180度左右。 故障报警接收器有效工作距离50m。3.6与电脑连接开启电脑,点击测试图标打开仪器工作界面3.6.1点击“初始设置”可设置时间。 3.6.2 点击“实时数据”可与仪器同步显示电压、电流、相位数据,同时有三条曲线分