A portable test device for a power automatic conversion system controller

Abstract

The present invention relates to a portable test device for a power automatic transfer system controller, which is used to perform signal detection on multiple power automatic transfer system controllers by simulating the closing and opening actions of circuit breaker switches. The test device includes multiple analog interlocking subcircuits connected in parallel between a driving power supply and a driving power supply common terminal. The input side of the analog interlocking subcircuit is connected to the opening signal output terminal, the closing signal output terminal, the control common terminal and the input common terminal of the power automatic transfer system controller, and the output side is connected to the detection terminal of the power automatic transfer system controller. Compared with the prior art, the present invention has the advantages of multi-channel simultaneous detection and simple structure.

Description

Technical Field

[0001] The invention relates to a simple test device for a power automatic conversion system controller, in particular to a portable test device for the power automatic conversion system controller. Background Art

[0002] The current automatic power transfer system controller (ATS controller) on the market requires a complete set of test equipment during production and debugging. The test equipment is often customized one-to-one, and the large size is not conducive to portability. Therefore, a set of simple test equipment is needed to meet the early testing of R&D personnel and the rapid demand for new product debugging in production, thereby reducing production costs. Summary of the invention

[0003] The purpose of the present invention is to provide a portable test device for a power automatic conversion system controller in order to overcome the defects of the prior art.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A portable test device for an automatic power transfer system controller is used to perform signal detection on multiple automatic power transfer system controllers by simulating the closing and opening actions of circuit breaker switches. The test device includes multiple analog interlocking subcircuits connected in parallel between a driving power supply and a common end of the driving power supply. The input side of the analog interlocking subcircuit is connected to an opening signal output end, a closing signal output end, a control common end and an input common end of the automatic power transfer system controller, and the output side is connected to a detection end of the automatic power transfer system controller.

[0006] The analog interlocking subcircuit comprises a normally open relay, a normally closed relay and two normally open relays, and the normally open relay is connected to the normally closed relay and the two normally open relays respectively.

[0007] The opening signal output end is connected to the control common end through the coil of a normally open relay, pin 1 of the normally open relay is connected to the driving power supply, pin 2 is left empty, and pin 3 is connected to pin 1 of a normally closed relay, pin 2 of the normally closed relay is connected to the driving power supply common end through the coils of two normally open relays, pin 3 is left empty, pin 5 of the two normally open relays is connected to pin 3 of the normally open relay through the coils of the two normally open relays, pin 9 is connected to the driving power supply, pin 1 and pin 4 are left empty, pin 12 is connected to the input common end, and pin 8 is connected to the detection end of the power automatic conversion system controller to output a test signal.

[0008] The driving power supply is AC230 live wire.

[0009] The common terminal of the driving power supply is the AC230 neutral line.

[0010] The models of the one-way normally open relay (K1) and the one-way normally closed relay (K2) are both JQC-3FF, and the model of the two-way normally open relay (K5) is RXM2AB2P7.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] The test equipment of the present invention is composed of relay interlocks, which can simulate the opening and closing actions of multiple circuit breakers at the same time, and is small in size and easy to carry. The control output logic is the same as that of the circuit breaker switch, and can fully meet the test requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The circuit diagram of the present invention is DETAILED DESCRIPTION

[0014] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example

[0016] The present invention provides a portable test device for a power automatic conversion system controller. The present invention is completed by interlocking control of relays. The interlocking control is composed of two-stage relays. The first-stage relay is composed of a closing relay and a state relay in parallel, and the second-stage relay is composed of an opening relay.

[0017] like Figure 1 As shown, K1 and K3 are normally open relays, K2 and K4 are normally closed relays, and K5 and K6 are two normally open relays. The driving power supply of the test device is connected to the AC230 live wire, the common terminal of the driving power supply of the test device is connected to the AC230 neutral wire, and ETU is the ATS controller.

[0018] The present invention can be applied to an ATS controller to control two circuit breakers or multiple circuit breakers. In this example, control of two circuit breakers is taken as an example.

[0019] The principle of the ATS controller controlling two circuit breakers is as follows:

[0020] The ATS controller can send out four control signals: S1 closing, S1 opening, S2 closing and S2 opening, where S1 represents one circuit breaker switch and S2 represents another circuit breaker switch. The S1 closing command is sent out in the form of pulses, S1 performs closing action, and the circuit breaker returns the closed contact to the ATS controller detection end. The S1 opening command is sent out in the form of pulses, S1 performs opening action, and the circuit breaker returns the opening contact to the ATS controller detection end. The same is true for the S2 closing command and the S2 opening command.

[0021] In the present invention, the closing command of the first circuit breaker S1 is issued, the K1 relay is actuated, pins 1 and 3 are closed, and the AC230V live wire is connected to pin 1 of the K2 relay. Since the initial state of the K2 relay is that pins 1 and 2 are closed, the AC230V live wire is connected to pin 13 of the K5 relay, the K5 relay is actuated, pins 12 and 8 are closed, and provided to the ETU input detection, simulating that S1 is in the closed state at this time; pins 9 and 5 are closed, and AC230V is continuously input to pin 13 of the K5 relay. Even if the S1 closing command ends, it will not affect the action of the K5 relay, thereby completing self-locking.

[0022] The S1 opening command is issued, and the pins 1 and 3 of the K2 relay are closed. The K5 relay has no AC230, stops working, and the pins 12 and 4 are closed, which are provided to the ETU input detection, simulating that S1 is in the opening state at this time; the pins 9 and 1 are closed, the S1 opening command ends, the pins 1 and 2 of the K2 relay are closed, and the K5 relay remains in the stopped state.

[0023] The closing command of the second circuit breaker S2 is issued, the K3 relay is activated, pins 1 and 3 are closed, and the AC230V live wire is connected to pin 1 of the K4 relay. Since the initial state of the K4 relay is that pins 1 and 2 are closed, the AC230V live wire is connected to pin 13 of the K6 relay. The K6 relay is activated, pins 12 and 8 are closed, and provided to the ETU input detection, simulating that S2 is in the closed state at this time; pins 9 and 5 are closed, and AC230V is continuously input to pin 13 of the K6 relay. Even if the S2 closing command ends, it will not affect the action of the K6 relay.

[0024] The S2 opening command is issued, and pins 1 and 3 of the K4 relay are closed. The K6 relay has no AC230, stops working, and pins 12 and 4 are closed, which are provided to the ETU input detection, simulating that S2 is in the opening state at this time; pins 9 and 1 are closed. The S2 opening command ends, pins 1 and 2 of the K4 relay are closed, and the K6 relay remains in the stopped state.

[0025] The above is only an embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiment based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A portable test device for a power automatic transfer system controller, used to perform signal detection on multiple power automatic transfer system controllers by simulating the closing and opening actions of circuit breaker switches, characterized in that: The test equipment comprises a plurality of analog interlocking subcircuits connected in parallel between a driving power supply and a driving power supply common terminal, wherein the input side of the analog interlocking subcircuit is connected to an opening signal output terminal, a closing signal output terminal, a control common terminal and an input common terminal of a power automatic transfer system controller, and the output side is connected to a detection terminal of the power automatic transfer system controller; The analog interlocking subcircuit comprises a normally open relay (K1), a normally closed relay (K2) and two normally open relays (K5), wherein the normally open relay (K1) is connected to the normally closed relay (K2) and the two normally open relays (K5) respectively; The switch-off signal output end is connected to the control common end through the coil of a normally open relay (K1); pin 1 of the normally open relay (K1) is connected to the driving power supply, pin 2 is left blank, and pin 3 is connected to pin 1 of a normally closed relay (K2); pin 2 of the normally closed relay (K2) is connected to the driving power supply common end through the coils of two normally open relays (K5), pin 3 is left blank, pin 5 of the two normally open relays (K5) is connected to pin 3 of the normally open relay (K1) through the coils of the two normally open relays (K5), pin 9 is connected to the driving power supply, pin 1 and pin 4 are left blank, pin 12 is connected to the input common end, and pin 8 is connected to the detection end of the power automatic conversion system controller to output a test signal; The driving power supply is AC230 live wire; The ATS controller sends control signals S1 closing and S1 opening, where S1 represents the first circuit breaker switch; the S1 closing command is sent in the form of pulses, the first circuit breaker switch S1 performs a closing action, and the first circuit breaker switch S1 returns a closed contact to the ATS controller detection end; the S1 opening command is sent in the form of pulses, the first circuit breaker switch S1 performs an opening action, and the first circuit breaker switch S1 returns an opening contact to the ATS controller detection end; When the closing command of the first circuit breaker S1 is issued, the normally open relay (K1) is actuated, pins 1 and 3 of the normally open relay (K1) are closed, and the AC230V live wire is connected to pin 1 of the K2 relay. Since the initial state of the normally closed relay (K2) is that pins 1 and 2 are closed, the AC230V live wire is connected to pin 13 of the two normally open relays (K5), and the two normally open relays (K5) are actuated. Pins 12 and 8 of the two normally open relays (K5) are closed and provided to the ETU input detection, simulating that the first circuit breaker switch S1 is in the closed state at this time; pins 9 and 5 of the two normally open relays (K5) are closed, and AC230V is continuously input to pin 13 of the two normally open relays (K5). Even if the S1 closing command ends, it will not affect the action of the two normally open relays (K5), thereby completing self-locking; The S1 opening command is issued, pins 1 and 3 of one normally closed relay (K2) are closed, and the two normally open relays (K5) have no AC230 and stop moving. Pins 12 and 4 of the two normally open relays (K5) are closed and provided to the ETU input detection to simulate that S1 is in the opening state at this time; pins 9 and 1 of the two normally open relays (K5) are closed, the S1 opening command ends, pins 1 and 2 of one normally closed relay (K2) are closed, and the two normally open relays (K5) remain in the stopped state.

2. A portable test device for a power automatic transfer system controller according to claim 1, characterized in that: The common terminal of the driving power supply is the AC230 neutral line.

3. A portable test device for a power automatic transfer system controller according to claim 1, characterized in that: The models of the one-way normally open relay (K1) and the one-way normally closed relay (K2) are both JQC-3FF, and the model of the two-way normally open relay (K5) is RXM2AB2P7.

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