作為一名電氣成套維修人員來說，在遇到電氣故障時(shí)，能準(zhǔn)確查明故障原因，合理正確地排除故障，對(duì)提高勞動(dòng)生產(chǎn)率，減少經(jīng)濟(jì)損失和生產(chǎn)都具有重大意義。下面來講解幾種排除故障的方式：

As a complete set of electrical maintenance personnel, it is of great significance for improving labor productivity, reducing economic losses and safe production to be able to accurately identify the cause of the failure and reasonably and correctly remove the failure when encountering electrical failure. Here are some troubleshooting methods:

一、電阻測試法

1、 Resistance test method

電阻測試法是一種常用的測量方法。通常是指利用萬用表的電阻檔，測量電機(jī)、線路、觸頭等是否符合使用標(biāo)稱值以及是否通斷的一種方法，或用兆歐表測量相與相、相與地之間的絕緣電阻等。測量時(shí)，注意選擇所使用的量程與校對(duì)表的準(zhǔn)確性，一般使用電阻法測量時(shí)通用做法是先選用低檔，同時(shí)要注意被測線路是否有回路，并嚴(yán)禁帶電測量。

The resistance test method is a common measurement method. It usually refers to a method of measuring whether the motor, line, contact, etc. conform to the nominal value of use and whether they are on or off by using the resistance range of a multimeter, or measuring the insulation resistance between phases and between phases and between phases and ground with a megohmmeter. When measuring, pay attention to the accuracy of the range used and the calibration meter. Generally, when using the resistance method to measure, the general practice is to select the low gear first, and at the same time, pay attention to whether the measured line has a circuit, and live measurement is strictly prohibited.

二、電壓測試法

2、 Voltage test method

電壓測試法是指利用萬用表相應(yīng)的電壓檔，測量電路中電壓值的一種方法。通常測量時(shí)，有時(shí)測量電源、負(fù)載的電壓，有時(shí)也測量開路電壓，以判斷線路是否正常。測量時(shí)應(yīng)注意表的檔位，選擇合適的量程，一般測量未知交流或開路電壓時(shí)通常選用電壓的高檔，以確保不于在高電壓低量程下進(jìn)行操作，以免把表損壞；同時(shí)測量直流時(shí)，要注意正負(fù)極性。

Voltage test method refers to a method of measuring the voltage value in the circuit by using the corresponding voltage range of the multimeter. Usually, the voltage of power supply and load is measured sometimes, and the open-circuit voltage is also measured sometimes to judge whether the circuit is normal. When measuring, pay attention to the gear position of the meter and select the appropriate range. Generally, when measuring unknown AC or open-circuit voltage, the high range of voltage is usually selected to ensure that the operation is not carried out under high voltage and low range, so as to avoid damaging the meter; When measuring DC at the same time, pay attention to the positive and negative polarity.

三、電流測試法

3、 Current test method

電流測試法是通常測量線路中的電流是否符合正常值，以判斷故障原因的一種方法。對(duì)弱電回路，常采用將電流表或萬用表電流檔串接在電路中進(jìn)行測量；對(duì)強(qiáng)電回路，常采用鉗形電流表檢測。

The current test method is usually used to measure whether the current in the circuit conforms to the normal value to determine the cause of the fault. For the weak current circuit, the ammeter or multimeter current range is often connected in series in the circuit for measurement; Clamp ammeter is often used for detection of strong current circuit.

四、儀器測試法

4、 Instrument test method

借助各種儀器儀表測量各種參數(shù)，如用示波器觀察波形及參數(shù)的變化，以便分析故障的原因，多用于弱電線路中。

Measure various parameters with the help of various instruments and meters, such as observing the waveform and parameter changes with an oscilloscope, so as to analyze the cause of the fault, which is mostly used in weak current lines.

五、常規(guī)檢查法

5、 Routine inspection method

依靠人的感覺器官(如：有的電氣設(shè)備在使用中有燒焦的糊味，打火、放電的現(xiàn)象等)并借助于～些簡單的儀器(如：萬用表)來尋找故障原因。這種方法在維修中常用，也是采用的。

Find out the cause of failure by relying on human sense organs (such as some electrical equipment with burnt smell, ignition, discharge, etc.) and some simple instruments (such as multimeter). This method is commonly used in maintenance and is also the first one to be used.

六、更換原配件法

6、 Replacement of original parts

即在懷疑某個(gè)器件或電路板有故障，但不能確定，且有代用件時(shí)，可替換試驗(yàn)，看故障是否消失，恢復(fù)正常。

That is, when a certain device or circuit board is suspected to have a fault, but cannot be determined, and there are substitute parts, the test can be replaced to see whether the fault disappears and returns to normal.

在實(shí)際工作中，排除故障的方法及方式只能根據(jù)故障的具體情況而定，也沒有什么嚴(yán)格的模式及方法，對(duì)部分維修人員來說會(huì)感到困難，在排除故障的過程中，往往會(huì)走不少彎路，甚造成較大損失。以上方式希望給您幫助，更多事項(xiàng)就來我們網(wǎng)站http://nmnewnet.cn咨詢吧！

In actual work, the method and method of troubleshooting can only be determined according to the specific situation of the fault, and there is no strict mode and method, which will be difficult for some maintenance personnel. In the process of troubleshooting, there are often many detours, and even large losses. We hope to help you with the above methods. Please come to our website for more matters http://nmnewnet.cn Ask!