CN216848057U - Starter protector detection device - Google Patents

Abstract

The utility model provides a starter protector detection device, which comprises a housin, the inside of casing is equipped with test circuit, the outside of casing is equipped with functional test button group, test parameter adjustment button and the test plug group of being connected with the starter protector, test circuit includes digital circuit and analog circuit, digital circuit's one end with functional test button electricity is connected, digital circuit's the other end with test plug electricity is connected, analog circuit's one end with test parameter adjustment button electricity is connected, analog circuit's the other end with test plug electricity is connected. Implement the utility model discloses, realize carrying out functional test to the starter protector that awaits measuring, improve the accuracy that detects, reduce the cost of overhaul.

Description

Starter protector detection device

Technical Field

The utility model relates to the field of electromechanical technology, especially, relate to a starter protector detection device.

Background

Currently, in the field of coal mine electromechanical technology, a mining explosion-proof and intrinsically safe vacuum electromagnetic starter (hereinafter referred to as a magnetic starter) is used in a mine with explosive hazardous gas and coal dust, and is mainly used for start-stop control of a three-phase squirrel-cage asynchronous motor and protection of the motor and related circuits. The PIB comprehensive protector used by the magnetic starter has Chinese liquid crystal display and can display parameters such as voltage, current, resistance, working state, fault type and the like. The protector can realize the functions of short circuit, overload, phase loss, undervoltage, overvoltage, leakage locking, wind power locking, vacuum tube protection and the like, has the function of automatically controlling the water level, and can realize the unattended automatic work of the water pump.

The PIB integrated protector is a core component of the magnetic starter, is an operation brain of the magnetic starter, is an important key component, has very high requirements on working performance, and mainly structurally comprises a central processing unit, a memory, an input/output module and a display screen.

At present, in the use process of equipment, due to reasons such as working conditions and electronic element aging, after the protector breaks down, visual inspection mode maintenance and computer test are mainly adopted, the visual inspection mode maintenance is used for inspecting the peripheral interface circuit and the appearance of related elements of the protector, the computer test is carried out on the whole protector which is not abnormally replaced through visual inspection, and the whole protector which is replaced when the function of the PIB protector is not in accordance with the requirement after the test.

However, the inventor finds that the existing protector detection method has the following defects in the process of realizing the invention:

(1) visual inspection type maintenance can only observe parts and devices with obvious damage, parts with unobvious damage and internal damage can not be observed, and damaged parts can not determine the damage reason, so the maintenance success rate is extremely low.

(2) In the on-board test, the electronic circuit of the magnetic starter cannot be detected relatively due to space limitation and safety factors of the magnetic starter, and finally the PIB protector with a fault can only be replaced, so that the overhaul cost of the magnetic starter is increased, and the normal overhaul period and the production operation of equipment are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a starter protector detection device, improve the accuracy that detects, reduce the cost of overhaul.

The technical scheme of the utility model a starter protector detection device is provided, which comprises a housin, the inside of casing is equipped with test circuit, the outside of casing is equipped with functional test button group, test parameter adjustment button and the test plug group of being connected with the starter protector, test circuit includes digital circuit and analog circuit, digital circuit's one end with functional test button electricity is organized and is connected, digital circuit's the other end with test plug electricity is organized and is connected, analog circuit's one end with test parameter adjustment button electricity is connected, analog circuit's the other end with test plug electricity is organized and is connected.

Further, the functional test button group comprises a far start test button, a far stop test button, a near start test button, a near stop test button, a high water level test button, a low water level test button, a leakage protection test button, a leakage test button, an open-phase test button, an overcurrent test button, a set up test button, a set down test button, a confirm test button and a reset test button.

Further, the test plug group comprises a first plug, a second plug and a third plug corresponding to the starter protector.

Further, the test circuit further comprises a transformer and a contactor which are electrically connected with an external power supply, the first plug comprises a first contact pin and a second contact pin which are electrically connected with a power end of the starter protector, a third contact pin which is electrically connected with one end of a closing circuit of the starter protector, and a fourth contact pin which is electrically connected with the other end of the closing circuit, the first output end of the transformer is electrically connected with the first contact pin, the second output end of the transformer is electrically connected with the second contact pin, the third output end of the transformer is electrically connected with the third contact pin, the fourth output end of the transformer passes through the near-stop test button and one end of the contactor are electrically connected, and the other end of the contactor is electrically connected with the fourth contact pin.

Further, the contactor comprises a first contact, a second contact and a third contact,

the test parameter adjusting button comprises an adjustable resistor, a first bidirectional controllable silicon, a second bidirectional controllable silicon and a third bidirectional controllable silicon, one end of the adjustable resistor is electrically connected with the first contact, and the other end of the adjustable resistor is respectively electrically connected with one end of the first bidirectional controllable silicon, one end of the second bidirectional controllable silicon and one end of the third bidirectional controllable silicon;

the first plug further comprises a fifth contact pin, a sixth contact pin, a seventh contact pin, an eighth contact pin, a ninth contact pin, a tenth contact pin and an eleventh contact pin, one end of the second contact is electrically connected with the fifth contact pin, the other end of the second contact is electrically connected with the sixth contact pin, one end of the third contact is electrically connected with the seventh contact pin, and the other end of the third contact is electrically connected with the eighth contact pin;

the open-phase test button comprises an A-phase open-phase test button, a B-phase open-phase test button and a C-phase open-phase test button, one end of the A-phase open-phase test button is electrically connected with the other end of the first bidirectional thyristor, the other end of the A-phase open-phase test button is electrically connected with the ninth contact pin, one end of the B-phase open-phase test button is electrically connected with the second bidirectional thyristor, the other end of the B-phase open-phase test button is electrically connected with the tenth contact pin, one end of the C-phase open-phase test button is electrically connected with one end of the third bidirectional thyristor, and the other end of the C-phase open-phase test button is electrically connected with the eleventh contact pin.

Furthermore, the second plug comprises a twelfth contact pin, a thirteenth contact pin, a fourteenth contact pin electrically connected with the set upward test button, a fifteenth contact pin electrically connected with the set downward test button, a sixteenth contact pin electrically connected with the confirmation test button, a seventeenth contact pin electrically connected with the reset test button, an eighteenth contact pin electrically connected with the overcurrent test button, a nineteenth contact pin electrically connected with the leakage protection test button and a twentieth contact pin electrically connected with the leakage test button, one end of the near start test button is electrically connected with the twelfth contact pin, and the other end of the near start test button is electrically connected with the thirteenth contact pin.

Further, the third plug includes twenty first contact pin, twenty second contact pin, with stop far the twenty third contact pin that the test button electricity is connected, with twenty fourth contact pin, twenty fifth contact pin and twenty sixth contact pin that the low water level test button electricity is connected, the one end of starting far the test button with twenty first contact pin electricity is connected, the other end of starting far the test button with the twenty second contact pin electricity is connected, the one end of high water level test button with the twenty fifth contact pin electricity is connected, the high water level test button other end with the twenty sixth contact pin electricity is connected.

Further, still be equipped with the first pilot lamp that is used for showing running state on the casing and be used for showing the second pilot lamp that electric leakage blocked state, test plug group still includes the fourth plug, the fourth plug include with twenty seventh contact pin, twenty eighth contact pin, twenty ninth contact pin and the thirty contact pin that starter protector connects, twenty seventh contact pin with the other end of twenty eighth contact pin with first pilot lamp is connected, the twenty ninth contact pin with the other end of thirty contact pin with the second pilot lamp is connected.

Furthermore, a first display unit for displaying the working current is further arranged on the shell, and the first display unit is electrically connected with the analog circuit.

Furthermore, a second display unit for displaying leakage current is further arranged on the shell, and the second display unit is electrically connected with the analog circuit.

After adopting above-mentioned technical scheme, have following beneficial effect: through set up test circuit in the casing, set up functional test button group, test parameter adjustment button and test plug group in the outside of casing, during the use, test plug group is connected with the starter protector that awaits measuring, carries the test function of functional test button group and test parameter adjustment button input to the starter protector that awaits measuring through test circuit, realizes carrying out functional test to the starter protector that awaits measuring, improves the accuracy that detects, reduces the cost of overhaul.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

fig. 1 is a schematic structural diagram of a starter protector detection device according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of the starter protector detection device shown in fig. 1.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

As shown in fig. 1 and 2, an embodiment of the present invention provides a starter protector detection device, including a housing 10, the inside of the housing 10 is provided with a test circuit, the outside of the housing 10 is provided with a functional test button set 20, a test parameter adjustment button 30, and a test plug set 40 connected to the starter protector, the test circuit includes a digital circuit and an analog circuit, one end of the digital circuit is electrically connected to the functional test button set 20, the other end of the digital circuit is electrically connected to the test plug set 40, one end of the analog circuit is electrically connected to the test parameter adjustment button 30, and the other end of the analog circuit is electrically connected to the test plug set 40.

The utility model discloses a starter protector detection device mainly includes casing 10, test circuit, functional test button group 20, test parameter adjustment button 30 and test plug group 40.

The shell 10 is made of metal plate, a test circuit is arranged in the shell 10, and a function test button group 20, a test parameter adjusting button 30 and a test plug group 40 are arranged on the outer side surface of the shell 10. The function test button group 20 is used for performing function test on the starter protector to be tested and providing a required digital quantity signal for the starter protector to be tested. The test parameter adjustment button 30 is used for simulating the magnitude of the circuit output current and providing a required analog quantity signal for the starter protector to be tested. The test circuit includes a digital circuit electrically connected to the function test button group 20 and an analog circuit electrically connected to the test parameter adjustment button 30. The test plug group 40 corresponds to a socket on the starter protector to be tested, the test plug group 40 is electrically connected with the test circuit, and the test plug group 40 is used for inputting a signal output by the test circuit to the starter protector to be tested, so that the function test is carried out on the starter protector to be tested.

The utility model provides a starter protector detection device, through set up test circuit in the casing, set up functional test button group, test parameter adjustment button and test plug group in the outside of casing, during the use, test plug group is connected with the starter protector that awaits measuring, carry the test function of functional test button group and test parameter adjustment button input to the starter protector that awaits measuring through test circuit, realize carrying out functional test to the starter protector that awaits measuring, improve the accuracy that detects, reduce the cost of overhaul.

In one embodiment, to facilitate testing, the set of functional test buttons 20 includes a far enable test button QA, a far disable test button TA, a near enable test button QA1, a near disable test button TA1, a high water test button SB6, a low water test button SB5, a leakage protection test button SB12, a leakage test button SB4, an open phase test button, an over current test button SB11, a set up test button SB7, a set down test button SB8, a confirm test button SB9, and a reset test button SB 10.

The remote start test button QA is used for carrying out remote start function test on the starter protector to be tested; the remote stop test button TA is used for carrying out remote stop function test on the starter protector to be tested; the near start test button QA1 is used for carrying out local start function test on the starter protector to be tested; the near-stop test button TA1 is used for performing on-site stop function test on the starter protector to be tested; the high water level test button SB6 is used for performing high water level starting function test on the starter protector to be tested; the low water level test button SB5 is used for performing low water level tripping function test on the starter protector to be tested; the leakage protection test button SB12 is used for performing remote stop function test on the starter protector to be tested; the leakage test button SB4 is used for performing a leakage test function test on the starter protector to be tested; the open-phase test button is used for carrying out open-phase protection function test on the starter protector to be tested; the overcurrent test button SB11 is used for testing the short-circuit protection function of the starter protector to be tested; the setting up test button SB7, the setting down test button SB8, the confirmation test button SB9 and the reset test button SB10 are used for setting and checking the parameters of the equipment working parameters stored in the starter protector to be tested, such as rated voltage, rated current, control mode, under-voltage protection, over-voltage protection, short circuit setting, overload setting, open-phase protection, locking function, closing feedback and the like.

In one embodiment, to facilitate connection with a starter protector to be tested, and further facilitate functional testing, the test plug set 40 includes a first plug 401, a second plug 402, and a third plug 403 corresponding to the starter protector.

In one embodiment, in order to facilitate the supply of power, the test circuit further includes a transformer T and a contactor CJ electrically connected to an external power source, the first plug 401 includes a first pin C7 and a second pin C6 electrically connected to a power terminal of the starter protector, a third pin C1 electrically connected to one end of a closing circuit of the starter protector, and a fourth pin C5 electrically connected to the other end of the closing circuit, the first output terminal of the transformer T is electrically connected with the first pin C7, the second output terminal of the transformer T is electrically connected with the second pin C6, the third output terminal of the transformer T is electrically connected to the third pin C1, the fourth output terminal of the transformer T is electrically connected to one end of the contactor CJ through the near-stop test button TA1, and the other end of the contactor CJ is electrically connected to the fourth pin C5.

The transformer T is used for outputting 24V and 36V two-path alternating current by transforming an external 220V alternating current power supply, the 24V alternating current power supply is input into the starter protector to be tested through a first contact pin C7, a second contact pin C6, a third contact pin C1 and a fourth contact pin C5 of the first plug 401, the 24V power supply is supplied to the starter protector to be tested to be used as a power supply, the 36V power supply is supplied to a contactor CJ for suction and an intrinsic safety transformer in an intrinsic safety loop inside the starter protector to be tested to be used, when the starter protector to be tested is used, the starter protector to be tested performs self-detection after being electrified, and if the starter protector is in a starting waiting state without faults.

In one embodiment, to facilitate the phase-loss protection function test, the contactor CJ includes a first contact CJ1, a second contact CJ2, and a third contact CJ3,

the test parameter adjusting button 30 comprises an adjustable resistor R1, a first triac V1, a second triac V2 and a third triac V3, wherein one end of the adjustable resistor R1 is electrically connected with the first contact CJ1, and the other end of the adjustable resistor R1 is electrically connected with one ends of the first triac V1, the second triac V2 and the third triac V3 respectively;

the first plug 401 further includes a fifth pin C3, a sixth pin C4, a seventh pin C8, an eighth pin C9, a ninth pin C10, a tenth pin C11 and an eleventh pin C12, one end of the second contact CJ2 is electrically connected to the fifth pin C3, the other end of the second contact CJ2 is electrically connected to the sixth pin C4, one end of the third contact CJ3 is electrically connected to the seventh pin C8, and the other end of the third contact CJ3 is electrically connected to the eighth pin C9;

the open-phase test button includes A looks open-phase test button SB1, B looks open-phase test button SB2 and C looks open-phase test button SB3, A looks open-phase test button SB 1's one end with first triac V1's other end electricity is connected, A looks open-phase test button SB 1's the other end with ninth contact pin C10 electricity is connected, B looks open-phase test button SB 2's one end with second triac V2 electricity is connected, B looks open-phase test button SB 2's the other end with tenth contact pin C11 electricity is connected, C looks open-phase test button SB 3's one end with third triac V3's one end electricity is connected, C looks open-phase test button SB 3's the other end with eleventh contact pin C12 electricity is connected.

In one embodiment, to facilitate setting and viewing of the operating parameters of the device stored within the starter protector under test, the second plug 402 includes a twelfth pin J1, a thirteenth pin J2, a fourteenth pin J3 electrically connected to the set up test button SB7, a fifteenth pin J4 electrically connected to the set down test button SB8, a sixteenth pin J5 electrically connected to the confirm test button SB9, a seventeenth pin J6 electrically connected to the reset test button SB10, an eighteenth pin J8 electrically connected to the over-current test button SB11, a nineteenth pin J9 electrically connected to the earth leakage test button SB12, and a twentieth pin J10 electrically connected to the earth leakage test button SB4, one end of the near start test button QA1 is electrically connected to the twelfth pin J1, and the other end of the near start test button 303 is electrically connected to the thirteenth pin J2.

In one embodiment, in order to facilitate the high water level control and low water level control function test, the third plug 403 includes a twenty-first pin B1, a twenty-second pin B2, a twenty-third pin B3 electrically connected to the remote-stop test button TA, a twenty-fourth pin B5 electrically connected to the low water level test button SB5, a twenty-fifth pin B4, and a twenty-sixth pin B6, one end of the remote-start test button QA is electrically connected to the twenty-first pin B1, the other end of the remote-start test button QA is electrically connected to the twenty-second pin B2, one end of the high water level test button SB6 is electrically connected to the twenty-fifth pin B5, and the other end of the high water level test button SB6 is electrically connected to the twenty-sixth pin B6.

In one embodiment, in order to facilitate viewing an operating state of the starter protector to be tested, a first indicator light D7 for displaying an operating state and a second indicator light D8 for displaying an earth leakage locking state are further disposed on the housing 10, the test plug group 40 further includes a fourth plug 404, the fourth plug 404 includes a twenty-seventh pin A3, a twenty-eighth pin a4, a twenty-ninth pin a5, and a thirty-third pin a6 connected to the starter protector, the other ends of the twenty-seventh pin A3 and the twenty-eighth pin a4 are connected to the first indicator light D7, and the other ends of the twenty-ninth pin a5 and the thirty-third pin a6 are connected to the second indicator light D8.

One ends of the twenty-seventh contact pin A3 and the twenty-eighth contact pin A4 are connected with a passive contact of the starter protector to be tested, the other ends of the twenty-seventh contact pin A3 and the twenty-eighth contact pin A4 are connected with the first indicator lamp D7, when the starter protector to be tested is normally started without a fault, the passive contact is closed, and the first indicator lamp D7 is lightened to indicate that the starter protector to be tested is normally started in operation.

One ends of the twenty-ninth contact pin A5 and the thirty-third contact pin A6 are connected with a locking circuit of the starter protector to be tested, the other ends of the twenty-ninth contact pin A5 and the thirty-third contact pin A6 are connected with the second indicator lamp D8, when the locking function is selected in the starter protector to be tested, the second indicator lamp D8 is lightened after the starter protector to be tested normally runs, and when the locking function is not available, the second indicator lamp D8 is not lightened when the starter protector to be tested normally runs.

In one embodiment, for easy viewing, a first display unit 50 for displaying the operating current is further disposed on the housing 10, and the first display unit 50 is electrically connected to the analog circuit.

In one embodiment, for easy viewing, a second display unit 60 for displaying the leakage current is further disposed on the housing 10, and the second display unit 60 is electrically connected to the analog circuit.

The following explains the working principle of the starter protector detection device provided by the utility model, specifically as follows:

when four control buttons, namely a set up test button SB7, a set down test button SB8, a confirm test button SB9 and a reset test button SB10, on the operation tester are operated, the working parameters of the equipment, namely rated voltage, rated current, control mode, under-voltage protection, overvoltage protection, short circuit setting, overload setting, open-phase protection, locking function, closing feedback and the like, stored in the starter protector to be tested can be set and checked;

when the on-site starting is set, the near start test button QA1 is pressed, a starting signal is input to the starter protector to be tested through the twelfth pin J1 and the thirteenth pin J2 of the second plug 402, after the starter protector to be tested receives the starting command, after the starter protector to be tested confirms that the starting is allowed, the starter protector to be tested outputs a closing command through the third pin C1 and the fourth pin C5 of the first plug 401, namely the internal closing circuit of the starter protector to be tested is connected, the 36V power supply is connected through the third pin C1 → the internal closing circuit → the fourth pin C5 → the contactor CJ → the near stop test button TA1 → 36V power supply, and the contactor pulls in the CJ, so that the normal on-site starting function test is completed; when a near-stop test button TA1 is pressed, the contactor CJ is powered off and released, and meanwhile, a closing circuit in the starter protector to be tested stops working.

When the remote start is set, the remote start test button QA is pressed, a start signal is input to the starter protector to be tested through the twenty-first pin B1 and the twenty-second pin B2 of the third plug 403, after the starter protector to be tested receives a start command, the starter protector to be tested outputs a closing command through the third pin C1 and the fourth pin C5 of the first plug 401 after the start permission is confirmed, namely the internal closing circuit is switched on, the 36V power supply is switched on through the third pin C1 → the internal closing circuit → the fourth pin C5 → the contactor CJ → the near stop test button TA1 → 36V power supply, and the contactor CJ is pulled in to finish the normal remote start function test; when the remote stop test button TA is pressed, the internal closing circuit of the starter protector to be tested stops working, and the contactor CJ is powered off and released.

When the water level control is set, the high water level test button SB6 is pressed, a starting signal is input to the starter protector to be tested through the twenty-fifth pin B4 and the twenty-sixth pin B6 of the third plug 403, after the starter protector to be tested receives a starting command, after the starter protector to be tested confirms permission to start, the starter protector to be tested outputs a closing command through the third pin C1 and the fourth pin C5 of the first plug 401, namely the internal closing circuit of the starter protector to be tested is switched on, the 36V power supply passes through the third pin C1 → the internal closing circuit → the fourth pin C5 → the contactor CJ → the near stop test button TA1 → 36V power supply, and the contactor CJ is attracted to finish a normal high water level starting function test; when the low water level test button SB5 is pressed, the internal closing circuit of the starter protector to be tested stops working, the contactor CJ is powered off and released, and the low water level tripping test is completed.

After the contactor CJ is attracted, the third contact CJ3 is closed to provide a working state feedback signal of the contactor CJ for a starter protector to be tested, if the contactor CJ is attracted, the third contact CJ3 is not closed, or a feedback signal is not detected due to external circuits and internal circuits, an internal closing circuit stops working, and the contactor CJ is powered off and reports a fault.

After the contactor CJ is closed, the second contact CJ2 is closed, the second contact CJ is input through the fifth pin C3 and the sixth pin C4 and is output through the pins A3 and A4, and the light emitting diode D7 is lightened to indicate that the contactor CJ is operated normally.

The first contact CJ1 is closed, the 36V power supply → the first contact CJ1 → the tunable R1 → the bidirectional regulator D5 → the first triac V1, the second triac V2 and the third triac V3 → the bidirectional regulator D1-D4 rectifier bridge and the ammeter → 36V power supply.

The adjustable resistor R1 is adjusted to enable the first bidirectional controllable silicon V1, the second bidirectional controllable silicon V2 and the third bidirectional controllable silicon V3 to obtain a certain conduction angle, the 36V power supply → R2, R3 (selected by a coarse adjusting knob SA 2), R4 → an eighth pin C9 → a comprehensive protector → a ninth pin C10, the tenth pin C11 and the eleventh pin C12 → A phase open-phase test button SB1, B phase open-phase test button SB2 and C phase open-phase test button SB3 → first bidirectional thyristor V1, second bidirectional thyristor V2 and third bidirectional thyristor V3 → bidirectional regulator D1-D4 rectifier bridge and ammeter → 36V power supply, so as to provide simulated three-phase working current for the starter protector to be tested, the normal comprehensive protector can display the actual working current value of the main line of the equipment detected by the protector, and the ammeter can display the simulated current value actually provided by the starter protector detection device for the starter protector to be tested.

When the adjustable resistor R1 and the coarse adjustment knob SA2 are adjusted, overload protection detection can be carried out;

when the overcurrent test button SB11 is pressed, short-circuit protection detection can be performed;

when one of three testing buttons of an A-phase open-phase testing button SB1, a B-phase open-phase testing button SB2 and a C-phase open-phase testing button SB3 is pressed, an open-phase protection test can be carried out, a circuit for providing analog working current for the phase is disconnected, and the starter protector to be tested acts correspondingly for open-phase protection.

When the leakage protection test button SB12 is pressed, a self-test of the leakage protection circuit can be performed, and the dc detection voltage inside the starter protector to be tested → the twentieth pin J10 → the SB12 (leakage test button) is pressed → J9 → the internal detection circuit of the protector is completed, thereby completing the self-test of the leakage protection function.

When the leakage test button SB4 is pressed, a leakage test can be performed, and the leakage test is completed by the dc detection voltage inside the starter protector to be tested → the twentieth pin J10 → the leakage test button SB4 is pressed → the ground resistance R8 → C13 → the internal detection circuit of the starter protector to be tested.

What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for a person skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the scope of the present invention should be viewed.

Claims (10)

1. The utility model provides a starter protector detection device, its characterized in that, includes the casing, the inside of casing is equipped with test circuit, the outside of casing is equipped with function test button group, test parameter adjustment button and the test plug group of being connected with the starter protector, test circuit includes digital circuit and analog circuit, digital circuit's one end with function test button group electricity is connected, digital circuit's the other end with test plug group electricity is connected, analog circuit's one end with test parameter adjustment button electricity is connected, analog circuit's the other end with test plug group electricity is connected.

2. The starter protector testing apparatus of claim 1, wherein the set of functional test buttons includes a far start test button, a far stop test button, a near start test button, a near stop test button, a high water level test button, a low water level test button, a leakage protection test button, a leakage test button, an open phase test button, an over current test button, a set up test button, a set down test button, a confirm test button, and a reset test button.

3. The starter protector testing apparatus of claim 2 wherein the set of test plugs includes a first plug, a second plug, and a third plug corresponding to the starter protector.

4. The starter protector detection device of claim 3, wherein the test circuit further comprises a transformer and a contactor electrically connected to an external power source, the first plug comprises a first pin and a second pin electrically connected to a power source terminal of the starter protector, a third pin electrically connected to one end of a switching circuit of the starter protector, and a fourth pin electrically connected to the other end of the switching circuit, the first output terminal of the transformer is electrically connected to the first pin, the second output terminal of the transformer is electrically connected to the second pin, the third output terminal of the transformer is electrically connected to the third pin, the fourth output terminal of the transformer is electrically connected to one end of the contactor through the near-stop test button, and the other end of the contactor is electrically connected to the fourth pin.

5. The starter protector testing device of claim 4 wherein the contactor includes a first contact, a second contact and a third contact,

the test parameter adjusting button comprises an adjustable resistor, a first bidirectional controllable silicon, a second bidirectional controllable silicon and a third bidirectional controllable silicon, one end of the adjustable resistor is electrically connected with the first contact, and the other end of the adjustable resistor is respectively electrically connected with one ends of the first bidirectional controllable silicon, the second bidirectional controllable silicon and the third bidirectional controllable silicon;

the first plug further comprises a fifth contact pin, a sixth contact pin, a seventh contact pin, an eighth contact pin, a ninth contact pin, a tenth contact pin and an eleventh contact pin, one end of the second contact is electrically connected with the fifth contact pin, the other end of the second contact is electrically connected with the sixth contact pin, one end of the third contact is electrically connected with the seventh contact pin, and the other end of the third contact is electrically connected with the eighth contact pin;

the open-phase test button comprises an A-phase open-phase test button, a B-phase open-phase test button and a C-phase open-phase test button, one end of the A-phase open-phase test button is electrically connected with the other end of the first bidirectional thyristor, the other end of the A-phase open-phase test button is electrically connected with the ninth contact pin, one end of the B-phase open-phase test button is electrically connected with the second bidirectional thyristor, the other end of the B-phase open-phase test button is electrically connected with the tenth contact pin, one end of the C-phase open-phase test button is electrically connected with one end of the third bidirectional thyristor, and the other end of the C-phase open-phase test button is electrically connected with the eleventh contact pin.

6. The starter protector detecting device as recited in claim 4, wherein the second plug includes a twelfth pin, a thirteenth pin, a fourteenth pin electrically connected to the set up test button, a fifteenth pin electrically connected to the set down test button, a sixteenth pin electrically connected to the confirmation test button, a seventeenth pin electrically connected to the reset test button, an eighteenth pin electrically connected to the over-current test button, a nineteenth pin electrically connected to the earth leakage test button, and a twentieth pin electrically connected to the earth leakage test button, one end of the near start test button is electrically connected to the twelfth pin, and the other end of the near start test button is electrically connected to the thirteenth pin.

7. The starter protector detecting device as recited in claim 4, wherein the third plug includes a twenty-first pin, a twenty-second pin, a twenty-third pin electrically connected to the remote-stop test button, a twenty-fourth pin, a twenty-fifth pin, and a twenty-sixth pin electrically connected to the low-water-level test button, one end of the remote-start test button is electrically connected to the twenty-first pin, the other end of the remote-start test button is electrically connected to the twenty-second pin, one end of the high-water-level test button is electrically connected to the twenty-fifth pin, and the other end of the high-water-level test button is electrically connected to the twenty-sixth pin.

8. The starter protector detection device as recited in claim 6, wherein the housing further includes a first indicator light for indicating an operating state and a second indicator light for indicating a leakage blocking state, the test plug set further includes a fourth plug, the fourth plug includes a twenty-seventh pin, a twenty-eighth pin, a twenty-ninth pin and a thirty-ninth pin connected to the starter protector, the other ends of the twenty-seventh pin and the twenty-eighth pin are connected to the first indicator light, and the other ends of the twenty-ninth pin and the thirty-eighth pin are connected to the second indicator light.

9. The starter protector testing apparatus of claim 3 wherein the housing further includes a first display unit for displaying operating current, the first display unit being electrically connected to the analog circuit.

10. The starter protector detection device of claim 9 wherein a second display unit is provided on the housing for displaying leakage current, the second display unit being electrically connected to the analog circuit.

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