Safety grounding all-purpose online detector
A technology for safe grounding and detectors, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problem of difficult insertion of test pens or multimeter needles, lack of simple and effective means and methods, lack of common sense of safe electricity use, etc. problems, to achieve the effect of low cost, convenient operation and easy installation
Active Publication Date: 2013-08-28
张振汉
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However, some people think that the 380/220 volt low-voltage power supply voltage is not high, the safety awareness is not strong, and the common sense of safe use of electricity is lacking. The use of electrical equipment is intrinsically safe, such as randomly pulling wires to connect to electricity, connecting wrong ground wires, and leaking ground wires. Hidden dangers, so accidents of personal electric shock mostly occur in this field
How to find out the potential safety hazards of testing electrical equipment, there is currently a la
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[0014] Safety grounding universal online detector includes safety ground leakage protection control universal online detector, safety grounding intelligent digital display universal online detector, safety grounding relay control universal online detector, which can be used in various For the housing or various existing plug-in board housings, the specific circuit structure is implemented as follows:
[0015] figure 1 It is a schematic diagram of the circuit principle of a safety ground leakage protection control universal online detector. The circuit implementation is that the ground wire PE2 of the single-phase three-pole plug CHT1 is connected to the test hole CS1, the ground wire PE3 of the ordinary single-phase three-pole socket CHZ2, and the potentiometer WR1 And the transfer switch contact a1 of the transfer switch ZK1 through the zero sequence transformer BL2, the transfer switch contact a0 is connected to the secondary winding BL4 of the transformer BT and the relay J3 co...
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The invention relates to the field of low-voltage power supply system grounding detection. Ensuring safety grounding of equipment is an important technical measure to ensure safety in utilization of electric power. The invention aims at providing a safety grounding all-purpose online detector. The safety grounding all-purpose online detector is characterized in that a low voltage is applied to safety grounding through utilization of a transformer secondary winding, the safety grounding all-purpose online detector and user earth leakage protection are combined to form composite dual earth leakage protection to be used for detecting a safety grounding effect of a user ground lead in a comprehensive mode, the safety grounding all-purpose online detector has a comprehensive detection function of detecting a correct connection method, a grounding current, a grounding resistor and the like of safety grounding, the safety grounding all-purpose online detector can detect the safety grounding of electricity supplying, electricity utilization, commercial residential buildings, residence communities, independent residents and the like, and can detect the safety grounding of lightning protection equipment, electric equipment and the like, and the safety utilization of the electric power is guaranteed. The safety grounding all-purpose online detector has the advantages of being simple in circuit, low in cost, easy to install and convenient to operate, and has much practical value.
Description
technical field [0001] The invention relates to the field of grounding detection of low-voltage power supply systems, in particular to a universal online detector for safe grounding. Background technique [0002] The low-voltage power supply system covers all areas of electricity consumption. It is extremely important to do a good job in safe power supply, and the safe grounding of electrical equipment is an important technical measure to ensure safe electricity use. However, some people think that the 380 / 220 volt low-voltage power supply voltage is not high, the safety awareness is not strong, and the common sense of safe use of electricity is lacking. The use of electrical equipment is intrinsically safe, such as randomly pulling wires to connect to electricity, connecting wrong ground wires, and leaking ground wires. Hidden dangers, so most of the accidents of personal electric shock occurred in this field. How to find out the potential safety hazards of testing electri...
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Inventor 陈可张振汉吴辉陈肖粟介国安
Owner 张振汉
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