CN206421021U

CN206421021U - transformer detector

Info

Publication number: CN206421021U
Application number: CN201720112749.4U
Authority: CN
Inventors: 刘虎
Original assignee: Guangzhou Dian'an Electric Power Service Co Ltd
Current assignee: Guangzhou Dian'an Electric Power Service Co Ltd
Priority date: 2017-02-07
Filing date: 2017-02-07
Publication date: 2017-08-18
Anticipated expiration: 2027-02-07

Abstract

The utility model discloses a kind of transformer detector, including test plate body, selecting switch, LVPS, high-voltage power supply, diode, bulb, resistance, first test side, second test side, 3rd test side, 4th test side and the 5th test side, wherein selecting switch, LVPS, high-voltage power supply, diode, bulb and resistance are fixedly mounted on test plate body, one end of LVPS and high-voltage power supply is electrically connected with selecting switch respectively, the other end of LVPS is connected with the second test side, the other end of high-voltage power supply is connected with the 3rd test side, selecting switch is connected with the first test side, one end of diode, one end of bulb and resistance is electrically connected with successively, the other end of diode is connected with the 4th test side, the other end of resistance is connected with the 5th test side.Because lighting for bulb is difficult affected by environment, and fast response time, display is obvious, and user can rapidly and accurately judge the polarity of transformer.

Description

Transformer detector

Technical field

The utility model is related to design of testing device field, more particularly to a kind of transformer detector.

Background technology

Transformer is also known as instrument transformer, is the general designation of current transformer and voltage transformer.Can by high-voltage variable into Low-voltage, high current become low current, for measuring or protecting system.Now it is widely used in various electric fields.

In actual use, in order to ensure transformer energy normal work, it usually needs transformer is detected, wherein, mutually The Check up polarity of sensor is to ensure the accurate important indicator of transformer line.It is typically to the Check up polarity of transformer at present Three people are needed to coordinate experiment, a people takes dry cell, battery plus-negative plate is connected to the two ends of current transformer primary side, the second people The secondary side of current transformer is connect by milliammeter, the polarity of transformer is judged by observing the deflection situation of milliammeter.

But, this test form is, it is necessary to which many people could complete test, and efficiency is low, and the sensitivity of milliammeter is high, holds Easily deflected by ectocine, and deflection speed is fast, user easily neglects deflected situation, generally requires repeatedly test Just dare test result certainly, waste time and energy.Simultaneously as the selection of power supply is fixed, be not suitable for the various transformers of matching, versatility It is low.

Utility model content

The purpose of this utility model is to provide a kind of transformer detector, can solved in above-mentioned prior art problem It is one or more.

Opened according to one side of the present utility model there is provided a kind of transformer detector, including test plate body, selection Pass, LVPS, high-voltage power supply, diode, bulb, resistance, the first test side, the second test side, the 3rd test side, Four test sides and the 5th test side, wherein selecting switch, LVPS, high-voltage power supply, diode, bulb and resistance are solid Dingan County is on test plate body, and one end of LVPS and high-voltage power supply is electrically connected with selecting switch respectively, low-voltage The other end of power supply is connected with the second test side, and the other end of high-voltage power supply is connected with the 3rd test side, selecting switch and the One test side is connected, and one end of one end of diode, bulb and resistance is electrically connected with successively, and the other end of diode is examined with the 4th End connection is surveyed, the other end of resistance is connected with the 5th test side.

The beneficial effects of the utility model are：The utility model can select the electricity detected by selecting switch Source so that the utility model can be adapted to the detection of the transformer of different voltage requirements, and be selected by the first test side and correspondence The second test side or the 3rd test side selected to be connected with the first coil of transformer, and the second coil of transformer can be with Four test sides and the connection of the 5th test side, thus the second coil can induce phase induced current, and partly be led because diode has Property, thus user can judge the polarity of the second coil by observing bulb and whether lighting.Because lighting for bulb is difficult by ring Border influences, and whether lights fast response time, and display is obvious, and user can rapidly and accurately judge the polarity of transformer, without Repeatedly test, efficiency high is highly reliable.In addition, the setting of resistance can prevent bulb from burning out, safety of the present utility model is improved Property.

In some embodiments, the utility model also include safety switch, wherein selecting switch by safety switch with First test side is connected.Setting for safety switch can be switched as the totality of the utility model whole system, further improve this The security of utility model.

In some embodiments, safety switch is a dynamic formula normal open switch.Thus, user can be prevented after use, forgotten Remember disconnecting circuit, cause damage of the present utility model, improve security of the present utility model.

In some embodiments, selecting switch includes the first contact, the second contact, the 3rd contact, centering block and base, its In the first contact, the second contact, the 3rd contact and centering block be installed on base, one end of the second contact and LVPS electricity Property connection, one end of the 3rd contact and high-voltage power supply is electrically connected with.Multiconductor sets and can guarantee that selecting switch selection function Realize, centering block can prevent multiconductor from connecting simultaneously, it is ensured that the functional reliability of selecting switch.

In some embodiments, the first test side, the second test side, the 3rd test side, the 4th test side and the 5th inspection Survey on end and be equipped with fixture block.The setting of fixture block can facilitate the first test side, the second test side, the 3rd test side, the 4th test side Or the 5th clamping of the test side to the coil of transformer, it is ensured that the reliability of detection.

Brief description of the drawings

Fig. 1 is a kind of structural representation of the transformer detector of embodiment of the present utility model.

Fig. 2 is the structural representation of Fig. 1 selecting switch.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

With reference to Fig. 1 and Fig. 2, transformer detector, including test plate body 1, selecting switch 2, LVPS 3, high voltage Power supply 4, diode 5, bulb 6, resistance 7, safety switch 8, the first test side 10, the second test side 20, the 3rd test side 30, Four test sides 40 and the 5th test side 50.Selecting switch 2, LVPS 3, high-voltage power supply 4, diode 5, bulb 6 and electricity Resistance 7 can be screwed on test plate body 1.

The transformer selection that the voltage of LVPS 3 and high-voltage power supply 4 can be tested as needed, herein, low electricity The dry cell series connection that the selection of voltage source 3 two saves 5V is obtained, and the dry cell series connection that the selection of high-voltage power supply 4 three saves 5V is obtained.

Selecting switch 2 includes the first contact 21, the second contact 22, the 3rd contact 23, centering block 24 and base 25.First contact 21st, the second contact 22, the 3rd contact 23 and centering block 24 are arranged on base 25 by screw, the second contact 22 and low-voltage electricity The negative pole one end in source 3 is electrically connected with by wire, and the 3rd contact 23 and negative pole one end of high-voltage power supply 4 are electrically connected by wire Connect, and the first contact 21 is connected with centering block 24, and centering block 24 can swing to select and the second contact 22 or the 3rd contact 23 Whether connect.In addition, the first contact 21 is also electrically connected with by wire with safety switch 8, safety switch 8 is commercially available point dynamic formula Normal open switch.

Diode 5 selects commercially available common diode 5, and electric current may only flow to negative pole, and the positive pole of diode 5 from positive pole One end of one end, bulb and resistance 7 is electrically connected with successively by wire.

And the first test side 10, the second test side 20, the 3rd test side 30, the 4th test side 40 and the 5th test side 50 are equal Can be wire, safety switch 8 is connected with the first test side 10, positive pole one end of LVPS 3 and the second test side 20 It is connected, positive pole one end of high-voltage power supply 4 is connected with the 3rd test side 30, negative pole one end of diode 5 and the 4th detection End 40 is connected, and the other end of resistance 7 is connected with the 5th test side 50.

On the other hand, clamping for convenience to the coil of transformer, the first test side 10, the second test side the 20, the 3rd Fixture block 9 is equipped with the end of test side 30, the 4th test side 40 and the 5th test side 50.

During utility model works, one end of the first coil of transformer can be connected by user with the first test side 10, and The operating voltage needed according to first coil, is selected corresponding voltage, is such as tested using LVPS 3, then by first coil The other end is connected with the second test side 20, is such as tested using high-voltage power supply 4, then is detected the other end of first coil and the 3rd End 30 is connected.And centering block 24 is swung to the contact of the power supply of corresponding selection.Meanwhile, by one end of the second coil of transformer It is connected with the 4th test side 40, the other end is connected with the 5th test side 50.

Press safety switch 8, if now bulb 6 is bright, that is, illustrate the first coil of transformer and the second test side 20 or One end of the test side 30 of person the 3rd connection and the second coil are identical with the polarity of one end that the 4th test side 40 is connected.That is transformer One end for being connected with the first test side 10 of first coil and one end polarity for being connected with the 5th test side 50 of the second coil also phase Together.

If now bulb 6 does not work, that is, illustrate first coil and the second test side 20 or the 3rd test side of transformer The opposite polarity of one end that one end of 30 connections and the second coil are connected with the 4th test side 40.I.e. the first coil of transformer with One end of first test side 10 connection and the second coil are also opposite with the 5th test side 50 one end polarity connected.

Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art, On the premise of the utility model creation design is not departed from, various modifications and improvements can be made, these belong to this practicality New protection domain.

Claims

1. transformer detector, it is characterised in that including test plate body (1), selecting switch (2), LVPS (3), high electricity Voltage source (4), diode (5), bulb (6), resistance (7), the first test side (10), the second test side (20), the 3rd test side (30), the 4th test side (40) and the 5th test side (50), the selecting switch (2), LVPS (3), high-voltage power supply (4), diode (5), bulb (6) and resistance (7) are fixedly mounted on test plate body (1), the LVPS (3) and height One end of voltage source (4) is electrically connected with selecting switch (2) respectively, the other end of the LVPS (3) and the second inspection Survey end (20) connection, the other end of the high-voltage power supply (4) is connected with the 3rd test side (30), the selecting switch (2) and First test side (10) is connected, and one end of one end of the diode (5), bulb (6) and resistance (7) is electrically connected with successively, institute The other end for stating diode (5) is connected with the 4th test side (40), and the other end of the resistance (7) and the 5th test side (50) are even Connect.

2. transformer detector according to claim 1, it is characterised in that also including safety switch (8), the selection is opened (2) are closed to be connected with the first test side (10) by safety switch (8).

3. transformer detector according to claim 2, it is characterised in that the safety switch (8) is normally opened for a dynamic formula Switch.

4. transformer detector according to claim 1, it is characterised in that the selecting switch (2) includes the first contact (21), the second contact (22), the 3rd contact (23), centering block (24) and base (25), first contact (21), the second contact (22), the 3rd contact (23) and centering block (24) are installed on base (25), second contact (22) and LVPS (3) One end be electrically connected with, one end of the 3rd contact (23) and high-voltage power supply (4) is electrically connected with.

5. transformer detector according to claim 1, it is characterised in that first test side (10), the second detection Fixture block (9) is equipped with end (20), the 3rd test side (30), the 4th test side (40) and the 5th test side (50).