電阻測試法 ：

　　Resistance testing method:

　　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。

　　Use the resistance range of a multimeter to measure whether the motor, circuit, contacts, etc. meet the nominal values and whether they are open or closed.

　　使用兆歐表測量相與相、相與地之間的絕緣電阻，確保絕緣性能良好。

　　Use a megohmmeter to measure the insulation resistance between phases and ground to ensure good insulation performance.

　　電壓測試法 ：

　　Voltage testing method:

　　利用萬用表測量電路中的電壓值，包括電源電壓、負(fù)載電壓及開路電壓，以判斷電路是否正常。

　　Use a multimeter to measure the voltage values in the circuit, including power supply voltage, load voltage, and open circuit voltage, to determine if the circuit is functioning properly.

　　機(jī)械檢測 ：

　　Mechanical inspection:

　　通過觸摸電氣設(shè)備外殼的振動和溫度，粗略判斷設(shè)備的運行工況是否正常。

　　Roughly determine whether the operating conditions of the equipment are normal by touching the vibration and temperature of the electrical equipment casing.

　　檢查機(jī)械部件的安裝牢固性、螺絲緊固情況以及外觀，確保機(jī)械系統(tǒng)無故障。

　　Check the installation firmness, screw fastening, and appearance of mechanical components to ensure that the mechanical system is fault free.

　　靜態(tài)與動態(tài)檢測 ：

　　Static and dynamic detection:

　　靜態(tài)檢測：在設(shè)備不通電的情況下，檢查外部部件如開關(guān)、按鈕、插口及指示燈的工作情況。

　　Static detection: Check the working condition of external components such as switches, buttons, sockets, and indicator lights when the device is not powered on.

　　動態(tài)檢測：在設(shè)備通電后，進(jìn)行各項功能的調(diào)試和檢查，觀察是否有異?，F(xiàn)象。

　　Dynamic detection: After the device is powered on, perform debugging and inspection of various functions, and observe whether there are any abnormal phenomena.

　　先簡單后復(fù)雜 ：

　　Simple first, then complex:

　　先處理簡單、直觀、常見的故障，再處理復(fù)雜、難度較高的故障，以提高維修效率。

　　First deal with simple, intuitive, and common faults, and then deal with complex and difficult faults to improve maintenance efficiency.

　　先外部后內(nèi)部 ：

　　First external, then internal:

　　先檢查外部部件，如開關(guān)、按鈕等，再拆卸內(nèi)部設(shè)備進(jìn)行檢修，以減少不必要的拆卸。

　　First inspect external components such as switches, buttons, etc., and then disassemble internal equipment for maintenance to reduce unnecessary disassembly.

　　接地檢查 ：

　　Grounding inspection:

　　檢查主要元器件的接地情況，確保斷路器、真空接觸器、電容器、電抗器等設(shè)備的接地良好。

　　Check the grounding status of the main components to ensure good grounding of equipment such as circuit breakers, vacuum contactors, capacitors, and reactors.

　　元器件檢查 ：

　　Component inspection:

　　檢查各元器件的安裝牢固性、螺絲緊固情況以及外觀，確保無損壞或老化現(xiàn)象。

　　Check the installation firmness, screw fastening, and appearance of each component to ensure no damage or aging.

　　短路檢查 ：

　　Short circuit inspection:

　　檢查電路中是否存在短路現(xiàn)象，確保接線正確、無裸露導(dǎo)線。

　　Check for short circuits in the circuit, ensuring correct wiring and no exposed wires.

　　功能測試 ：

　　Functional testing:

　　按照圖紙及說明書進(jìn)行各項操作，行正常啟停機(jī)操作，再觀察各項故障保護(hù)動作是否正常。

　　Perform various operations according to the drawings and instructions, first perform normal start stop operations, and then observe whether various fault protection actions are normal.

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