Handheld type power frequency high-voltage electroscope tester
A power-frequency high-voltage, hand-held technology, applied in the direction of instruments, measuring electrical variables, measuring devices, etc., can solve the problem of inability to determine whether the power-frequency high-voltage electroscope is good or not, and achieves simple structure, low production cost, and easy portability. Effect
Inactive Publication Date: 2013-02-13
LUZHOU POWER SUPPLY COMPANY OF SICHUAN ELECTRIC POWER +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a hand-held power frequency high-voltage electroscope tester to solve the problem that it is impossible to determine whether the power frequency high-voltage electroscope is good or not
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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0020] In the following, the power frequency high voltage electroscope used for the most user lines and the most frequently used high voltage electroscope for 10KV lines is taken as the tested object:
[0021] figure 1 An embodiment of the hand-held power frequency high-voltage electroscope tester of the present invention is shown: a hand-held power frequency high-voltage electroscope tester, comprising
[0022] The circuit board installed in the main body is composed of a DC power supply E, a bridge oscillator circuit, an amplifier circuit, a differential circuit, a push-pull power amplifier circ...
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The invention discloses power system maintaining and detecting equipment and particularly relates to a handheld type power frequency high-voltage electroscope tester which is mounted in a circuit board of a main body, wherein the circuit board is formed by a direct-current power supply (E), a bridge type oscillating circuit, an amplifying circuit, a difference circuit, a push-pull power amplifying circuit and an output transformer (B); the bridge type oscillating circuit, the amplifying circuit, the difference circuit and the push-pull power amplifying circuit are connected between primary edges of the power supply and the output transformer (B) in parallel; the handheld type power frequency high-voltage electroscope tester further comprises a switch, an adjusting knob, a voltmeter and an output contact metal head, wherein the switch is arranged on a main body panel and is used for controlling the power supply, the adjusting knob is used for controlling the amplitude value of the output transformer, the voltmeter is used for displaying the secondary edge voltage of the transformer, and the output contact metal head is connected with the output transformer (B). The handheld type power frequency high-voltage electroscope tester has the effects of being very convenient to carry and being operated in a handheld manner; simple in structure and low in production cost and particularly suitable for testing a 10kV high-voltage electroscope outdoors or in the field.
Description
technical field [0001] The invention relates to a power system maintenance and testing device, in particular to a hand-held power frequency high-voltage electroscope tester. Background technique [0002] In the power system, when the power transmission line and electrical equipment are out of power for maintenance, the power test must be done first, and the specific work can only be carried out after confirming that there is no dangerous power supply. The high-voltage electroscope for detection must be pre-tested on the same level of electrified body before use. After confirming that the electroscope is normal, it can be transferred to the power-off body for testing experiments to determine whether there is still dangerous electricity in the power-off body. . [0003] However, in the field, when the front-end line is overhauled or tripped due to a fault, the follow-up circuit has no high voltage for testing, including some closed cables, and there is no exposed point for te...
Claims
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IPC IPC(8): G01R35/00
Inventor 吴光灿钱牛牛尧广
Owner LUZHOU POWER SUPPLY COMPANY OF SICHUAN ELECTRIC POWER