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A telescopic mutual inductance current polarity test device

A technology of polarity testing and inductive current, applied in measuring devices, electrical winding testing, measuring electrical variables, etc., can solve the problems of time-consuming and laborious, safety cannot be guaranteed, and falling, etc. Easy-to-use effects

Active Publication Date: 2022-07-29
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the power grid configuration is accepted for new, rebuilt and expanded intervals, it is necessary to conduct a polarity test on the secondary circuit of the current transformer to ensure that the wiring is correct. At present, the commonly used method is for the staff to climb onto the transformer and overlap the wires respectively. To the primary winding P1 and P2 side of the transformer, and then connect the wires to the dry battery pack for flashing and co-current, and then confirm the direction of the secondary current at the interval terminal box with a pin-type multimeter, and the staff climbs to the transformer It is time-consuming and labor-intensive, and there is a risk of falling, and high-altitude wire bonding is required, so safety cannot be guaranteed

Method used

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  • A telescopic mutual inductance current polarity test device
  • A telescopic mutual inductance current polarity test device
  • A telescopic mutual inductance current polarity test device

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of the present invention.

[0024] As shown in the figure, the present invention discloses a telescopic mutual inductance current polarity test device, which is characterized in that it includes: a lap arm 1 and a battery box 2, and the lap arm 1 is fixed by a telescopic rod 11 and a gripper 12 The telescopic rod 11 is connected with a wire, and the two ends of the wire are electrically connected to the gripper 12 and the battery box 2 respectively. The gripper 12 includes: a first connection ...

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Abstract

The invention relates to the technical field of current mutual inductance polarity testing, in particular to a telescopic mutual inductance current polarity testing device, comprising: a lap joint arm and a battery box, wherein the lap joint arm is fixedly connected by a telescopic rod and a gripper, so A wire is passed through the telescopic rod, and both ends of the wire are electrically connected with the gripper and the battery box, respectively. The gripper includes: a first connecting part, a second connecting part and a fixing head. The first connection part is rotatably connected with the second connection part, the second connection part is rotatably connected with the fixed head, the bottom of the fixed head is electrically connected with the wire, the first connection part, the second connection part and The fixed head forms a ring structure. It solves the problem that the staff is time-consuming and laborious to climb on the transformer, there is a risk of falling, and the safety cannot be guaranteed when the wires are overlapped at high altitude.

Description

technical field [0001] The invention relates to the technical field of current mutual inductance polarity testing, in particular to a telescopic mutual inductance current polarity testing device. Background technique [0002] When the power grid configuration is accepted in the new, renovated and expanded interval, the polarity test of the secondary circuit of the current transformer needs to be carried out to ensure the correct wiring. Go to the P1 and P2 sides of the primary windings of the transformer, and then connect the wires to the dry battery pack for flashing and co-current, and then use a pin multimeter to confirm the direction of the secondary current at the interval terminal box, and the staff climbs to the transformer. It is time-consuming and labor-intensive, and there is a risk of falling. It also requires high-altitude wire laps, and safety cannot be guaranteed. SUMMARY OF THE INVENTION [0003] In order to solve the above deficiencies in the prior art, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/72G01R35/02
CPCG01R35/02
Inventor 张茂铧周斌杨万锦郑海涯杨程封杰周立波吴育腾何承涛钱程金贵红丁志敏
Owner GUIZHOU POWER GRID CO LTD
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