High -voltage electrical appliances are mainly used to check the equipment with high voltage equipment above 1000V.High -voltage electrical appliances are generally composed of three parts: the detection part (indicator part or windmill), the insulation part, and the handshake part.The insulation part refers to the part from the metal connecting screw from the lower metal of the indicator to the part of the cover.The length of the insulation part and the handshake is different according to the different voltage levels.
Principles of high -voltage electrical appliances
One of the equipment in high -voltage appliances is a metal ball, and some electrical appliances are equipped with metal pieces. In fact, the principle is the same. Metal balls or metal pieces are connected to another device metal pole in high -voltage appliances.The metal rod is then specially processed and manufactured to make it passing through the rubber plug of high -voltage appliances. The lower end of the rubber plug is fixed with two very thin and thin metal foil. These two metal smalls are used to test the voltage current.During the test, first contact the measuring object with the contacts of high -voltage appliances. At this time, if the object is charged, the high -voltage appliance can pass the voltage to the two metal foil. According to the voltage, the two thin slices of tensor can be passed.The angle of the opening will be different. Generally, the larger the angle of the opening, the stronger the voltage, the smaller the open angle, and the weaker the voltage; if the measured object does not charge, the metal foil will not move.After that, the high -voltage electrical appliances are transformed into values ??from the angle of opening, displaying on the screen of high -voltage electrical appliances.
How to use high -voltage electrical appliances
When checking the electricity, the operator must wear insulating gloves and insulating boots to prevent the damage to the human body from step voltage or contact voltage.The operator should be checked on the electrical equipment below the handling ring below the hood.During the inspection, it should be gradually moved near the band -mounted equipment until it glows or sounds to verify the integrity of electrical appliances.Then detect on the equipment that requires electricity checking.When the multi -layer lines are checked in the same rod rack, the low pressure should be verified first, the high pressure is tested, and the lower layer should be verified.
High -voltage appliance price
Brand: Jin Miao Model: GDY-II Price: 50 yuan/alone Display form: voice type measurement range: 0.4kv-110kvv brand: Sutter model: ST price: 120.00 yuan Type: pointer voltage measurement instrument chart

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