CN218917569U - ATS testing device - Google Patents

Abstract

The utility model discloses an ATS testing device which is electrically connected between an ATS module and an input power module, and comprises a main control unit, a first circuit and a second circuit, wherein the first circuit and the second circuit are used for being electrically connected with the ATS module; the first circuit is electrically connected with a first switching module, and the second circuit is electrically connected with a second switching module; through the control of its main control unit to first switching module and second switching module for input power module's first looks circuit can be according to the requirement of wrong looks detection, from being connected with first circuit electricity to be connected with the second circuit electricity, make input power module's second looks circuit can be according to the requirement of wrong looks detection, from being connected with the second circuit electricity to be connected with first circuit electricity, can accomplish the interchange line preface action of wrong looks test fast, need not the manual dismouting power cord of staff, and is efficient, has reduced the human cost effectively and has improved the security.

Description

ATS testing device

Technical Field

The utility model relates to the technical field of ATS test structures, in particular to an ATS test device.

Background

ATS (Automatic transfer switching equipment, automatic transfer switching devices, also known as dual power transfer switches) are widely used in scenarios where there is a need for dual power switching, such as electrical equipment such as air conditioning equipment; the ATS is used as power input end equipment, is very important for electric equipment, and the reliability of the ATS is directly related to whether the electric equipment can work normally or not; therefore, it is important to perform fault test on the ATS before the ATS is formally operated, and the fault test refers to the observation of whether the ATS can be operated normally and the switching of power supply by simulating a fault.

As shown in fig. 1, conventional CC-stage, PC-stage, CB-stage ATS are usually installed on the whole electric equipment before performing fault test on the ATS; the fault test generally comprises a phase error test, namely when the multi-phase power supply is connected to the ATS, if the phase sequence of the power supply is disordered, the ATS can identify faults and switch from a first path of power supply to a second path of power supply; when the front piece is in the wrong phase test, a worker is required to manually detach the two-phase power lines and exchange the line sequence, and after the test is finished, the two-phase power lines are required to be restored, so that the defects of high labor cost and low safety are overcome.

Disclosure of Invention

The utility model aims to provide an ATS testing device which solves the problems of high labor cost and low safety in the prior ATS test.

To achieve the purpose, the utility model adopts the following technical scheme:

an ATS testing device is electrically connected between an ATS module and an input power module and comprises a main control unit, a first circuit and a second circuit, wherein the first circuit and the second circuit are used for being electrically connected with the ATS module;

the first circuit is electrically connected with a first switching module, and the second circuit is electrically connected with a second switching module;

the first switching module can be electrically connected with a first phase circuit or a second phase circuit of the input power supply module, and the second switching module can be electrically connected with the first phase circuit or the second phase circuit of the input power supply module;

the main control unit is electrically connected with the first switching module and the second switching module respectively, so that the first phase circuit is electrically connected with the first circuit and the second phase circuit is electrically connected with the second circuit, or the first phase circuit is electrically connected with the second circuit and the second phase circuit is electrically connected with the first circuit.

Optionally, the first switching module includes a first normally closed contact contactor and a first normally open contact contactor, the first normally closed contact contactor is electrically connected between the first line and the second phase circuit, and the first normally open contact contactor is electrically connected between the first line and the second phase circuit;

the main control unit is respectively and electrically connected with the first normally-closed contact contactor and the first normally-open contact contactor so as to enable the first normally-closed contact contactor to be opened and the first normally-open contact contactor to be closed;

the second switching module comprises a second normally-closed contact contactor and a second normally-open contact contactor, the second normally-closed contact contactor is electrically connected between the second circuit and the second phase circuit, and the second normally-open contact contactor is electrically connected between the second circuit and the first phase circuit;

the main control unit is respectively and electrically connected with the second normally-closed contact contactor and the second normally-open contact contactor so as to enable the second normally-closed contact contactor to be opened and enable the second normally-open contact contactor to be closed.

Optionally, the first phase circuit and the second phase circuit are electrically connected with a normally closed contact relay;

the main control unit is electrically connected with each normally-closed contact relay respectively so as to disconnect one normally-closed contact relay.

Optionally, the first phase circuit and the second phase circuit are electrically connected with a voltage regulating unit.

Optionally, the input power module comprises a first power supply unit and a second power supply unit; the first phase circuit is arranged in the first power supply unit, and the second phase circuit is arranged in the second power supply unit;

the first phase circuit is electrically connected with a voltage regulating unit, and the output end of the voltage regulating unit is electrically connected with the second phase circuit through a transfer circuit; or, the second phase circuit is electrically connected with a voltage regulating unit, and the output end of the voltage regulating unit is electrically connected with the first phase circuit through a transfer circuit.

Optionally, the voltage regulating unit is a transformer or a variable frequency power supply.

Optionally, a circuit breaker is electrically connected to the ends of the first line and the second line.

Optionally, the first phase circuit and the second phase circuit are further electrically connected with a switching normally open contact contactor;

the main control unit is electrically connected with each switching normally open contact contactor respectively so as to enable one or more switching normally open contact contactors to be closed.

Optionally, the main control unit is further electrically connected with a touch screen unit, and a key function area is displayed on the touch screen unit;

when the key function area is not triggered, the first phase circuit is electrically connected with the first circuit and the second phase circuit is electrically connected with the second circuit;

when the key function area is triggered, the first phase circuit is electrically connected with the second circuit and the second phase circuit is electrically connected with the first circuit.

Compared with the prior art, the utility model has the following beneficial effects:

the ATS testing device provided by the utility model is electrically connected between the ATS module and the input power module, and the main control unit controls the first switching module and the second switching module, so that the first phase circuit of the input power module can be electrically connected with the first circuit instead of the second circuit according to the requirement of phase failure detection, the second phase circuit of the input power module can be electrically connected with the first circuit instead of the second circuit according to the requirement of phase failure detection, the phase failure testing can be quickly completed, the manual disassembly and assembly of the power line by a worker are not needed, the efficiency is high, the labor cost is effectively reduced, and the safety is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.

FIG. 1 is a schematic diagram of a circuit structure of an ATS in the background art;

fig. 2 is a schematic structural diagram of an ATS test device according to an embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram of an ATS test device according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a circuit part structure of an ATS test apparatus according to an embodiment of the present utility model;

fig. 5 is a schematic connection diagram of a main control unit and a touch screen unit according to an embodiment of the present utility model.

Illustration of: 10. an ATS module; 21. a first line; 22. a second line; 31. a first switching module; 32. a second switching module; 331. a first normally closed contact contactor; 332. a first normally open contact contactor; 333. a second normally closed point contactor; 334. a second normally open contact contactor;

40. inputting a power supply module; 50. a main control unit; 60. a pressure regulating unit; 70. a touch screen unit; 80. and a transfer circuit.

Detailed Description

In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 2 to 5, fig. 2 is a schematic structural diagram of an ATS test device according to an embodiment of the present utility model, fig. 3 is a schematic circuit structural diagram of the ATS test device according to an embodiment of the present utility model, fig. 4 is a schematic circuit partial structural diagram of the ATS test device according to an embodiment of the present utility model, and fig. 5 is a schematic connection diagram of a main control unit and a touch screen unit according to an embodiment of the present utility model.

The ATS test device provided in this embodiment is installed between the ATS module 10 and the input power module 40, and by improving the structure thereof, it can simulate numerous situations such as phase failure and phase failure conveniently and rapidly, so as to detect whether the ATS module 10 can make correct feedback according to the simulated situation.

As shown in fig. 2 to 3, the ATS testing device provided in the present embodiment is electrically connected between the ATS module 10 and the input power module 40, and includes a main control unit 50, and a first circuit 21 and a second circuit 22 for electrically connecting with the ATS module 10. The first circuit 21 is electrically connected with a first switching module 31, and the second circuit 22 is electrically connected with a second switching module 32; the first switching module 31 can be electrically connected to the first phase circuit or the second phase circuit of the input power module 40, and the second switching module 32 can be electrically connected to the first phase circuit or the second phase circuit of the input power module 40.

The main control unit 50 is electrically connected to the first switching module 31 and the second switching module 32, respectively, so that the first phase circuit is electrically connected to the first circuit 21 and the second phase circuit is electrically connected to the second circuit 22, or the first phase circuit is electrically connected to the second circuit 22 and the second phase circuit is electrically connected to the first circuit 21.

In this embodiment, as shown in fig. 3, the input power module 40 includes a plurality of power units, and the power units are configured with a plurality of phase circuits, and in this embodiment, the number of power units is two, and each power unit is configured with four phase circuits, wherein three of the power units are used as three-phase alternating current, and the fourth phase circuit is used as a neutral line or a zero line, that is, the ATS test device can perform a phase-error test on any two phase circuits of any one power unit. Specifically, the control of the main control unit 50 on the first switching module 31 and the second switching module 32 enables the first phase circuit of the input power supply assembly 10 to be electrically connected with the first circuit 21 instead of being electrically connected with the second circuit 22 according to the requirement of phase failure detection, so that the second phase circuit of the input power supply assembly 10 can be electrically connected with the second circuit 22 instead of being electrically connected with the first circuit 21 according to the requirement of phase failure detection, the phase failure test can be quickly completed without manually disassembling and assembling the power supply wires by a worker, the efficiency is high, the labor cost is effectively reduced, and the safety is improved.

In other alternative embodiments, the input power module 40 includes two power units, each power unit is configured with a phase circuit, that is, a single-phase power source is selected, at this time, the phase circuit of one power unit is a first phase circuit, the phase circuit of the other power unit is a second phase circuit, and the situation that the phase error occurs due to the reverse connection of the two power units can be simulated through the first switching module 31 and the second switching module 32, that is, the ATS detection device further has the advantage of wide detection range. In other alternative embodiments, the input power module 40 includes two power supply units, each configured with three-phase circuits, each serving as a three-phase alternating current, i.e., a three-phase three-wire system, without a neutral line.

As shown in fig. 3 and 4, in the present embodiment, the first switching module 31 includes a first normally closed contact contactor 331 and a first normally open contact contactor 332, the first normally closed contact contactor 331 is electrically connected between the first line 21 and the second phase circuit, and the first normally open contact contactor 332 is electrically connected between the first line 21 and the second phase circuit; the main control unit 50 is electrically connected with the first normally closed contact contactor 331 and the first normally open contact contactor 332 respectively, so that the first normally closed contact contactor 331 is opened and the first normally open contact contactor 332 is closed;

the second switching module includes a second normally closed contact contactor 333 and a second normally open contact contactor 334, the second normally closed contact contactor 333 is electrically connected between the second line 22 and the second phase circuit, and the second normally open contact contactor 334 is electrically connected between the second line 22 and the first phase circuit; the main control unit 50 is electrically connected to the second normally closed contact 333 and the second normally open contact 334, respectively, so that the second normally closed contact 333 is opened and the second normally open contact 334 is closed.

For example, as shown in fig. 3, taking two three-phase power sources as an example, for any three-phase power source, a first phase circuit is provided with a first line 21 as an output terminal, and a second phase circuit is provided with a second line 22 as an output terminal; under normal conditions, the first phase circuit communicates with the first line 21 through the first normally closed contact contactor 331, and the second phase circuit communicates with the second line 22 through the second normally closed contact contactor 333; when the phase error is required to be simulated, the first normally-closed contact contactor 331 and the second normally-closed contact contactor 333 are opened, and the first normally-open contact contactor 332 and the second normally-open contact contactor 334 are closed, so that the first phase circuit is connected to the second circuit 22, and the second phase circuit is connected to the first circuit 21; when the phase error is not required to be tested, the power is not needed, namely, a normally closed contact is adopted to realize conduction, so that the power saving device has the advantage of saving electricity. It should be appreciated that for a three-phase power supply that also includes a third circuit for electrically connecting to the ATS module 10, a normally closed contact contactor may also be disposed between the third circuit and the third circuit, and a normally open contact contactor may be disposed between the third circuit and the first phase circuit, the third circuit and the second phase circuit, the first circuit and the third circuit, and the second circuit and the second phase circuit to simulate a more complex phase failure condition.

In other alternative embodiments, a single pole single throw switch may be used to replace the normally open contact contactor and the normally closed contact contactor, and a high power semiconductor device such as a thyristor may be used to replace the normally open contact contactor and the normally closed contact contactor.

Further, the first phase circuit and the second phase circuit are electrically connected with a normally closed contact relay; the main control unit 50 is electrically connected with each normally closed contact relay, respectively, to open one of the normally closed contact relays.

For example, as shown in fig. 3, taking two three-phase power supplies as an example, for any three-phase power supply, the three-phase power supply is provided with a first phase circuit, a second phase circuit and a third phase circuit, each phase circuit is correspondingly and electrically connected with a normally closed contact relay, and when the phase failure of one phase circuit needs to be simulated, the normally closed contact relay is correspondingly opened, so that the phase failure can be simulated; because the normally closed contact relay adopts the normally closed contact, when the phase failure is not required to be tested, the power-on is not required, and the power-saving relay has the characteristic of saving electricity. In other alternative embodiments, a single pole single throw switch may be used instead of the normally closed contact relay described above, and a high power semiconductor device such as a thyristor may also be used instead of the normally closed contact relay described above.

In one embodiment, as shown in fig. 3, a voltage regulating unit 60 is electrically connected to both the first phase circuit and the second phase circuit. Through the arrangement of the voltage regulating unit 60, the voltage of the input power supply module 40 can be regulated, so that the under-voltage or over-voltage condition is simulated, and the functions of the ATS testing device are further expanded. For example, taking two three-phase power sources as an example, for any three-phase power source, a first phase circuit, a second phase circuit and a third phase circuit are provided, and each phase circuit is independently configured with a voltage regulating unit 60 to change the voltage through the voltage regulating unit 60; taking two single-phase power sources as an example, a first power source unit is configured with a first phase circuit, a second power source unit is configured with a second phase circuit, and each phase circuit is independently configured with a voltage regulating unit 60 to change the voltage through the voltage regulating unit 60.

In another specific embodiment, as shown in fig. 3, the input power module 40 includes a first power unit and a second power unit; the first phase circuit is arranged in the first power supply unit, and the second phase circuit is arranged in the second power supply unit;

the first phase circuit is electrically connected with a voltage regulating unit 60, and the output end of the voltage regulating unit 60 is electrically connected with the second phase circuit through a transfer circuit 80; alternatively, the second phase circuit is electrically connected to a voltage regulating unit 60, and the output end of the voltage regulating unit 60 is electrically connected to the first phase circuit through a transfer circuit 80. For example, two three-phase power supplies are taken as an example, and any three-phase power supply is provided with a first phase circuit, a second phase circuit and a third phase circuit, wherein one three-phase power supply is provided with a voltage regulating unit 60, and the other three-phase power supply is not provided with the voltage regulating unit 60; each phase circuit of the one three-phase power supply can change voltage through the voltage regulating unit 60; the other three-phase power supply can be electrically connected with the voltage regulating unit 60 through the transit circuit 80, so that the voltage of the other three-phase power supply can be regulated after the other three-phase power supply is switched to the other three-phase power supply, and therefore, after the voltage of each phase of circuit is regulated by the voltage regulating unit 60, the circuit is transmitted to an ATS device through each circuit, and the simulation of undervoltage or overvoltage is realized; taking two single-phase power supplies as an example, a first power supply unit is provided with a first phase circuit, a second power supply unit is provided with a second phase circuit, the second phase circuit is provided with a voltage regulating unit 60, and the output end of the voltage regulating unit 60 is also connected with the first phase circuit through a transit circuit 80, so that voltage regulation of the two single-phase power supplies can be realized through the voltage regulating unit 60; in the above arrangement, only one voltage regulating unit 60 is used, saving costs.

In the two embodiments described above, the voltage regulating unit 60 is a transformer or a variable frequency power supply. The transformer and the variable frequency power supply have voltage regulation capability, but the variable frequency power supply also has frequency regulation capability, so that the ATS test device has over-frequency and under-frequency test functions.

Further, the ends of the first line 21 and the second line 22 are electrically connected with a circuit breaker. By way of example, taking two three-phase power supplies as an example, for any three-phase power supply, the tail ends of four configured circuits are commonly connected with a circuit breaker, and by means of the arrangement of the circuit breaker, the four circuits can be used as power output wiring ports of an ATS test device, so that the test wiring of staff is facilitated.

Further, the first phase circuit and the second phase circuit are also electrically connected with a switching normally open contact contactor; the main control unit 50 is electrically connected to each normally open contact contactor, respectively, to close one or more of the switching normally open contact contactors. Taking two three-phase power supplies as an example, each three-phase circuit is configured with four-phase circuits (a first phase circuit, a second phase circuit, a third phase circuit and a zero line circuit), each phase circuit is electrically connected with a switching normally open contact contactor, and the switching normally open contact contactor is arranged to simulate the on-off of the power supply; meanwhile, two groups of switching normally open contact contactors are alternatively closed, so that the switching of two three-phase power supplies is realized; for example, taking two single-phase power supplies as an example, a first single-phase power supply is configured with a first phase circuit, a second single-phase power supply is configured with a second phase circuit, both the first phase circuit and the second phase circuit are configured with a switching normally open contact contactor, and when one of the power supplies needs to be started, the switching normally open contact contactor is correspondingly closed.

On the basis of the above embodiment, as shown in fig. 5, the main control unit 50 is further electrically connected to a touch screen unit 70, and a key function area is displayed on the touch screen unit 70; when the key function area is not triggered, the first phase circuit is electrically connected with the first circuit 21 and the second phase circuit is electrically connected with the second circuit 22; when the key function region is activated, the first phase circuit is electrically connected to the second circuit 22 and the second phase circuit is electrically connected to the first circuit 21. The key function area is at least provided with keys of power-off, power-on, overvoltage, undervoltage, unbalanced phase, phase-missing, over-frequency, under-frequency, power switching function and the like, and each key corresponds to one action of the ATS testing device.

Next, taking fig. 3 to 5 as an example, the principle of the ATS test device applied between two three-phase power supplies (a first power supply unit and a second power supply unit) and the ATS module 10 will be described.

1. Each three-phase power supply is provided with a first phase circuit L1, a second phase circuit L2, a third phase circuit L3 and a zero line circuit N; the ATS module 10 is provided with a plurality of interfaces corresponding to each phase of circuit;

2. the first phase circuit L1, the second phase circuit L2, the third phase circuit L3 and the zero line circuit N are respectively and electrically connected with a voltage regulating unit 60, and when the voltage regulating unit 60 is a variable frequency power supply, the voltage regulating unit can play roles in overvoltage regulation, undervoltage regulation, over-frequency regulation and under-frequency regulation of each phase circuit; correspondingly, the main control unit 50 controls each voltage regulating unit 60 in the first power supply unit through its TC1 interface, and the main control unit 50 controls each voltage regulating unit 60 in the second power supply unit through its TC2 interface;

the method for judging the overvoltage/undervoltage/over-frequency/under-frequency is as follows: obtaining the voltage U1/frequency F1 after passing through the voltage regulating unit 60, and judging by a relational expression; taking the voltage U1 as an example, judging whether the power supply is over-voltage or not, if U1 is larger than Uats+n, judging that the power supply is over-voltage, wherein Uats is the rated working voltage of the ATS module 10, n is a percentage, and configuring different sizes according to different ATS requirements; further, if U1 < Uats-n, determining that the power supply is under-voltage; similarly, the over-frequency and under-frequency of the frequency F1 can be judged by the relation among F1, fats and n, fats is the rated working frequency of the ATS module 10, the over-frequency is judged by whether F1 is more than Fats+n, and the under-frequency is judged by whether F1 is less than Fats-n; wherein, the parameter n needs to be preset in advance.

3. The first power supply unit is electrically connected with a first contactor KM1, and the second power supply unit is electrically connected with a third contactor KM3; the main control unit 50 controls the opening and closing of the first contactor KM1 through the DO1 interface thereof, thereby controlling whether the first power supply unit is connected to the ATS test device; the main control unit 50 controls the opening and closing of the third contactor KM3 through the DO3 interface thereof, thereby controlling whether the third power supply unit is connected to the ATS test device, so as to realize the functions of power off, power acquisition, power supply switching and the like. The first contactor KM1 and the third contactor KM3 refer to the above normally open contact switching contactor.

4. The first phase circuit L1 of the first power supply unit is electrically connected with a relay KA1, the second phase circuit L2 is electrically connected with a relay KA2, and the third phase circuit L3 is electrically connected with a relay KA3; the first phase circuit L1 of the second power supply unit is electrically connected with a relay KA4, the second phase circuit L2 is electrically connected with a relay KA5, and the third phase circuit L3 is electrically connected with a relay KA6; the main control unit 50 controls the relays KA1 to KA6 through the interfaces DO5 to DO10 thereof respectively to simulate the phase-loss function of the power supply.

5. The first phase circuit L1 and the second phase circuit L2 of the first power supply unit are also electrically connected with a second contactor KM2, and the first phase circuit L1 and the second phase circuit L2 of the second power supply unit are also electrically connected with a fourth contactor KM4; the specific structure of the second contactor KM2 and the fourth contactor KM4 is described in the first normally closed contact contactor 331, the first normally open contact contactor 332, the second normally closed contact contactor 333, and the fourth normally open contact contactor 334; the main control unit 50 controls the opening and closing of the second contactor KM2 through an interface DO2 thereof to realize the exchange of the first phase circuit L1 and the second phase circuit L2 of the first power supply unit; the main control unit 50 controls the opening and closing of the fourth contactor KM4 through the interface DO4 thereof to realize the exchange of the first phase circuit L1 and the second phase circuit L2 of the second power supply unit, thereby realizing the phase-error simulation function of the first phase circuit L1 and the second phase circuit L2 of the power supply.

6. The four-phase circuit of the first power supply unit is finally electrically connected with the ATS module 10 through a first breaker QF1, and the four-phase circuit of the second power supply unit is finally electrically connected with the ATS module 10 through a second breaker QF 2; through the arrangement of the circuit breaker, the tail end of the circuit can be used as a power output wiring port of the ATS testing device, so that the testing wiring of workers is facilitated.

In summary, the staff can trigger the main control unit 50 through the key area of the touch screen 70, so that the main control unit 50 can control the corresponding module to act through the corresponding interface; further, an automatic test button is further disposed in the button area of the touch screen 70, and after the automatic test button is pressed, the main control unit 50 sequentially performs a first power unit test, a second power unit test and a switching test of the power units. Wherein the testing of the individual power supply units is performed according to the following logic: the power supply unit overvoltage-power supply unit undervoltage-power supply unit voltage recovery normal-power supply unit over-frequency-power supply unit under-frequency-power supply unit frequency recovery normal-power supply unit L1 open-phase-recovery-power supply unit L2 open-phase-recovery-power supply unit L3 open-phase-recovery-power supply unit L1 phase and L2 relative regulation (i.e. error phase) -power supply unit L1 phase and L2 error phase recovery. Wherein, for the switching test, the power supply switching is performed in the following order: first power supply unit- > second power supply unit- > first power supply unit.

In summary, the ATS test device provided in this embodiment can complete the test requirements of the common functions and faults of the dual power supply, only one person is required to complete all operations, and the touch screen unit 70 is required to operate to realize the required functions without directly operating the strong-current component, so that the ATS test device has the advantages of safety and convenience.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. An ATS testing device is characterized by being electrically connected between an ATS module (10) and an input power module (40) and comprising a main control unit (50), and a first circuit (21) and a second circuit (22) which are used for being electrically connected with the ATS module (10);

the first circuit (21) is electrically connected with a first switching module (31), and the second circuit (22) is electrically connected with a second switching module (32);

the first switching module (31) can be electrically connected with a first phase circuit or a second phase circuit of the input power supply module (40), and the second switching module (32) can be electrically connected with the first phase circuit or the second phase circuit of the input power supply module (40);

the main control unit (50) is electrically connected with the first switching module (31) and the second switching module (32) respectively, so that the first phase circuit is electrically connected with the first circuit (21) and the second phase circuit is electrically connected with the second circuit (22), or the first phase circuit is electrically connected with the second circuit (22) and the second phase circuit is electrically connected with the first circuit (21).

2. ATS test device according to claim 1, characterized in that the first switching module (31) comprises a first normally closed contact contactor (331) and a first normally open contact contactor (332), the first normally closed contact contactor (331) being electrically connected between the first line (21) and the second phase circuit, the first normally open contact contactor (332) being electrically connected between the first line (21) and the second phase circuit;

the main control unit (50) is electrically connected with the first normally-closed contact contactor (331) and the first normally-open contact contactor (332) respectively, so that the first normally-closed contact contactor (331) is opened and the first normally-open contact contactor (332) is closed;

the second switching module comprises a second normally closed contact contactor (333) and a second normally open contact contactor (334), wherein the second normally closed contact contactor (333) is electrically connected between the second line (22) and the second phase circuit, and the second normally open contact contactor (334) is electrically connected between the second line (22) and the first phase circuit;

the main control unit (50) is electrically connected with the second normally-closed contact contactor (333) and the second normally-open contact contactor (334) respectively, so that the second normally-closed contact contactor (333) is opened and the second normally-open contact contactor (334) is closed.

3. The ATS test device of claim 1, wherein the first phase circuit and the second phase circuit are each electrically connected to a normally closed contact relay;

the main control unit (50) is electrically connected with each normally-closed contact relay respectively so as to disconnect one normally-closed contact relay.

4. The ATS test device of claim 1, wherein the first phase circuit and the second phase circuit are each electrically connected to a voltage regulating unit (60).

5. ATS test device according to claim 1, characterized in that the input power module (40) comprises a first power supply unit and a second power supply unit; the first phase circuit is arranged in the first power supply unit, and the second phase circuit is arranged in the second power supply unit;

the first phase circuit is electrically connected with a voltage regulating unit (60), and the output end of the voltage regulating unit (60) is electrically connected with the second phase circuit through a transfer circuit (80); or, the second phase circuit is electrically connected with a voltage regulating unit (60), and the output end of the voltage regulating unit (60) is electrically connected with the first phase circuit through a transfer circuit (80).

6. ATS test device according to claim 5 or 4, characterized in that the voltage regulating unit (60) is a transformer or a variable frequency power supply.

7. ATS test device according to claim 1, characterized in that the ends of the first line (21) and the second line (22) are electrically connected with a circuit breaker.

8. The ATS test device of claim 1, wherein the first phase circuit and the second phase circuit are further electrically connected with a switching normally open contact contactor;

the main control unit (50) is electrically connected with each switching normally open contact contactor respectively so as to enable one or more switching normally open contact contactors to be closed.

9. The ATS test device of claim 1, wherein the main control unit (50) is further electrically connected to a touch screen unit (70), and a key function area is displayed on the touch screen unit (70);

when the key function area is not triggered, the first phase circuit is electrically connected with the first circuit (21) and the second phase circuit is electrically connected with the second circuit (22);

when the key function region is triggered, the first phase circuit is electrically connected with the second circuit (22) and the second phase circuit is electrically connected with the first circuit (21).

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