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Handheld on-load tap-changer gear shifting device

An on-load tap, hand-held technology, applied in the field of power transformers, can solve the problems of slow adjustment rate, time-consuming and laborious manual gear adjustment, and unfavorable rapid test progress, and achieves the effect of rapid gear adjustment and reduction of physical exertion.

Active Publication Date: 2021-06-15
STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual gear adjustment is time-consuming and labor-intensive and the adjustment speed is slow, which is not conducive to the rapid progress of the test

Method used

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  • Handheld on-load tap-changer gear shifting device
  • Handheld on-load tap-changer gear shifting device
  • Handheld on-load tap-changer gear shifting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Figure 1-Figure 3 It is an embodiment of the hand-held on-load tap changer shifting device of the present invention. The hand-held on-load tap changer shifting device is used to reduce the physical exertion of the staff and realize the quick shifting of the transformer.

[0044] Such as Figure 1-Figure 3 As shown, the hand-held on-load tap changer shifting device includes a sleeve 1, a housing 6, a controller 9, a motor 7 with a no-load speed of 3700 rpm, a reducer with a reduction ratio of 45:1, A power supply 10 for providing power to the controller 9, a power switch 8 for controlling the on-off of the power supply 10, and a forward and reverse switch 12 for forward and reverse control of the rotation of the motor 7;

[0045] The housing 6 has a handle 6.1;

[0046] The power supply 10, the controller 9, the motor 7 and the speed reducer 13 are installed in the casing 6;

[0047] The forward and reverse switch 12 and the power switch 8 are integrated on the hous...

Embodiment 2

[0075] Compared with Embodiment 1, the difference is that the hand-held on-load tap changer shifting device in this embodiment has a turn threshold display interface 17 on its touch screen 11; There are four digital display digits, the four digit display digits from left to right are thousands digit 18, hundreds digit 19, tens digit 20 and units digit 21, the thousands digit 18, hundreds digit 19 , the tens digit 20 and the ones digit 21 are separated by a decimal point 24 in sequence, and the above-mentioned preset circle number threshold value is displayed through the above-mentioned four digital display digits.

[0076] The touch display screen 11 is provided with a + / R key 22 and an M key 23 for resetting the threshold value of the number of turns, which is convenient for the staff to modify the threshold value of the number of turns according to actual needs, and is flexible to use. Figure 4 It is a schematic structural diagram of the touch display screen 11 in this embo...

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PUM

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Abstract

The invention provides a handheld on-load tap-changer gear shifting device. The handheld on-load tap-changer gear shifting device comprises a sleeve, a shell, a controller, a motor with the no-load rotation speed being 3700 revolutions per minute, a speed reducer with the reduction ratio being 45: 1, a positive and negative rotation switch used for positive and negative control over rotation of the motor and an electronic counting unit used for recording the number of rotation turns of the sleeve, wherein the shell is provided with a handheld part; the power supply, the controller, the motor and the speed reducer are arranged in the shell; the positive and negative rotation switch and the power switch are integrated on the shell; the sleeve is located outside the shell and coaxially and fixedly connected with an output shaft of the speed reducer; a first positioning pin used for being matched with a mechanical transmission part of the on-load tap-changer for use is integrated in the sleeve; an output shaft of the motor is coaxially connected with an input shaft of the speed reducer; the signal output end of the electronic counting unit is in signal connection with the controller; and the controller is used for controlling the device. The gear shifting device is used for reducing physical exhaustion of workers and improving the gear shifting speed.

Description

technical field [0001] The invention relates to the field of power transformers, in particular to a hand-held on-load tap changer shifting device. Background technique [0002] Tap changers are used for tap change and connection of coil equipment. The power transformer changes the connection of the tap through the tap changer to change the number of turns of the high voltage coil, thereby adjusting the output voltage of the transformer. Tap-changers are divided into off-excitation tap-changers and on-load tap-changers. [0003] In recent years, more and more on-load tap-changers have been applied to transformers of 110KV and below. When performing some tests on the transformer, such as the DC resistance test of the transformer, it is necessary to adjust the gear position of the transformer through the on-load tap changer. In general, the transformer can realize the automatic adjustment of the gear. However, in some cases, such as when the entire substation is powered off...

Claims

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Application Information

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IPC IPC(8): H01H9/02H01F29/04
CPCH01H9/02H01F29/04
Inventor 高彬王永军张跃勇丛文益高萌钟海涛王环崔超李孝朋曾芳段继来孔令京王雪梅徐有利程泽群孙浩李丰硕孙华忠文向东张郅业郝建园葛亮彭鹏刘静赵爽徐子华王斐凯公政张吉春李霖贾克军类金
Owner STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO
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