CN213275909U - Integrated power supply comprehensive testing device - Google Patents
Integrated power supply comprehensive testing device Download PDFInfo
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- CN213275909U CN213275909U CN202022328894.0U CN202022328894U CN213275909U CN 213275909 U CN213275909 U CN 213275909U CN 202022328894 U CN202022328894 U CN 202022328894U CN 213275909 U CN213275909 U CN 213275909U
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 40
- 238000004088 simulation Methods 0.000 claims description 7
- 230000010354 integration Effects 0.000 abstract description 15
- 238000010998 test method Methods 0.000 abstract description 5
- 238000013522 software testing Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000010617 multipoint ground Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Abstract
The utility model relates to an integration power supply test technical field is an integration power integrated test device, and it includes voltage regulating unit, three-phase AC input voltage display element, three-phase AC output voltage display element, single phase AC output voltage display element, exchanges scarce item air switch, three-phase AC input voltage display element connects in parallel at the voltage regulating unit input, and the arbitrary one phase of voltage regulating unit output is connected with exchanging scarce item air switch, and three-phase AC output voltage display element and single phase AC output voltage display element all connect in parallel at the voltage regulating unit output. The utility model discloses simple structure, convenient to use compare in traditional test method, can simulate a plurality of troubles simultaneously, carry out the test of a plurality of items of examining to the integration power to only need alone can accomplish the test, so simplified the field work flow, can realize the quick test of integration power, improved efficiency of software testing, reduced the fault rate of integration power, improved equipment operating stability.
Description
Technical Field
The utility model relates to an integration power supply test technical field is an integration power supply integrated test device.
Background
With the continuous development of power grids, an integrated power supply system is an indispensable part in the safe operation process of the power grids, the reliability of the integrated power supply system is directly related to whether secondary equipment in a transformer substation can safely and stably operate, the integrated power supply of a power plant and the transformer substation provides a direct-current power supply for tripping/closing of a circuit breaker, relay protection, an automatic device, communication and the like in a normal state, and the integrated power supply plays a role of an independent power supply under the condition of power interruption of the substation, and provides power for the relay protection, the automatic device, communication, emergency lighting, tripping and closing of the circuit breaker and the like. If the integrated power supply fails, the breaker loses the direct-current power supply due to the protection device, so that the protection device is actuated, the accident is expanded, and the power system is endangered.
The integrated power ground is a fault that is prone to occur and is extremely harmful to the power system. The fuse wire is easy to fuse, the breaker is easy to reject action and malfunction due to the grounding of the integrated power supply. Therefore, the integrated power supply needs to be periodically detected. The conventional integrated power supply regular detection working process needs one person to be specially responsible for recording, the other person carries out fault simulation, and the two persons are matched with each other to finish the integrated power supply detection work, so that the problem of inaccurate detection due to matching error easily exists, and potential safety hazards are caused for the safe operation of a power grid.
Disclosure of Invention
The utility model provides an integration power integrated test device has overcome above-mentioned prior art not enough, and it can effectively solve needs two people cooperation wiring record that current two people complex integration power test mode exists, easily makes mistakes, the problem of inefficiency.
The technical scheme of the utility model is realized through following measure: the utility model provides an integrated power supply integrated test device, includes voltage regulating unit, three-phase AC input voltage display element, three-phase AC output voltage display element, single-phase AC output voltage display element, exchanges scarce item air switch, three-phase AC input voltage display element connects in parallel at the voltage regulating unit input, and arbitrary one phase of voltage regulating unit output is connected with exchanging scarce item air switch, and three-phase AC output voltage display element and single-phase AC output voltage display element all connect in parallel at the voltage regulating unit output.
The following are further optimization or/and improvement of the technical scheme of the utility model:
the above-mentioned ground resistance simulation unit also can include a plurality of slide rheostats, and one end of slide sheet of all slide rheostats is grounded.
The air switch also comprises a three-phase alternating current input air switch and a three-phase alternating current output air switch, wherein the output end of the three-phase alternating current input air switch is connected with the input end of the voltage regulating unit, and the output end of the voltage regulating unit is connected with the input end of the three-phase alternating current output air switch.
The device also comprises a three-phase alternating current input on-off display unit and a three-phase alternating current output on-off display unit, wherein the three-phase alternating current input on-off display unit is connected with the input end of the voltage regulating unit, and the three-phase alternating current output on-off display unit is connected with the output end of the voltage regulating unit.
The utility model discloses simple structure, convenient to use compare in traditional test method, can simulate a plurality of troubles simultaneously, carry out the test of a plurality of items of examining to the integration power to only need alone can accomplish the test, so simplified the field work flow, can realize the quick test of integration power, improved efficiency of software testing, reduced the fault rate of integration power, improved equipment operating stability.
Drawings
Fig. 1 is a schematic circuit diagram of a part of the preferred embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of another part of the preferred embodiment of the present invention.
The codes in the figures are respectively: v1 is a three-phase ac input voltage display unit, V2 is a three-phase ac output voltage display unit, V3 is a single-phase ac output voltage display unit, K1 is an ac open-top air switch, R is a slide rheostat, K2 is a three-phase ac input air switch, K3 is a three-phase ac output air switch, D1 is a three-phase ac input on-off display unit, and D2 is a three-phase ac output on-off display unit.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached fig. 1 and 2, the integrated power supply comprehensive testing device comprises a voltage regulating unit, a three-phase alternating input voltage display unit V1, a three-phase alternating output voltage display unit V2, a single-phase alternating output voltage display unit V3 and an alternating-current open air switch K1, wherein the three-phase alternating input voltage display unit V1 is connected in parallel with the input end of the voltage regulating unit, any one phase of the output end of the voltage regulating unit is connected with the alternating-current open air switch K1, and the three-phase alternating output voltage display unit V2 and the single-phase alternating output voltage display unit V3 are connected in parallel with the output end of the voltage regulating unit.
In the technical scheme, the integrated power supply is tested by combining the voltage regulating unit, the three-phase alternating-current input voltage display unit V1, the three-phase alternating-current output voltage display unit V2, the single-phase alternating-current output voltage display unit V3 and the alternating-current open-top air switch K1. The voltage regulating unit can be a three-phase voltage regulator, the voltage regulating range of the three-phase voltage regulator can be 0V to 430V, and the power can be 0.5 kW; the three-phase alternating-current input voltage display unit V1, the three-phase alternating-current output voltage display unit V2 and the single-phase alternating-current output voltage display unit V3 are used for workers to check input voltage, output voltage and single-phase voltage, the three-phase alternating-current input voltage display unit V1 and the three-phase alternating-current output voltage display unit V2 can be three-phase alternating-current digital voltmeters, parameters of the three-phase alternating-current input voltage display unit V1 and parameters of the three-phase alternating-current output voltage display unit V2 can be voltage display ranges of 0V to 500V and 0.5 level, the single-phase alternating-current output voltage display unit V3 can be a single-phase alternating-current digital voltmeters, the three-phase alternating-; the capacity of the AC lacuna air switch K1 can be 3A; the AC air switch K1 is connected in series with any phase of the output end of the voltage regulating unit.
The specific test procedure is as follows:
ATS device switching test of integrated power supply
1. During testing, the input end of the middle voltage regulating unit of the utility model is connected with a power frequency three-phase alternating current power supply, and the output ends of a two-phase and alternating current open air switch K1 which are not connected with an alternating current open air switch K1 in the output end of the middle voltage regulating unit of the utility model are connected with the main input of an ATS device in an integrated power supply through a debugging line;
2. the output voltage of the utility model is adjusted by the voltage adjusting unit to simulate the overvoltage and undervoltage of the AC power supply; the open-phase of the alternating current power supply is simulated by disconnecting the alternating current open-phase air switch K1; at the moment, whether the ATS device in the integrated power supply can be automatically switched to the standby power supply to operate when the alternating current power supply is over-voltage or under-voltage and the alternating current is in phase failure is checked, so that the reliability of the ATS device in the integrated power supply is judged.
Secondly, simulating the input overvoltage, undervoltage and AC open-phase faults of the AC power supply of the DC system, and testing the integrated power supply
1. During testing, the input end of the middle voltage regulating unit of the utility model is connected with a power frequency three-phase alternating current power supply, and the output ends of the two-phase and alternating current open air switch K1 which are not connected with the alternating current open air switch K1 in the output end of the middle voltage regulating unit of the utility model are all connected with the alternating current input terminal of the integrated power supply;
2. the output voltage of the utility model is adjusted by the voltage adjusting unit to simulate the overvoltage and undervoltage of the AC power supply; the open-phase of the alternating current power supply is simulated by disconnecting the alternating current open-phase air switch K1; and at the moment, observing whether the running condition of the high-frequency power supply module in the integrated power supply and the overvoltage and undervoltage protection functions are normal.
Thirdly, simulating the alternating current to flow into the direct current fault and testing the integrated power supply
1. During testing, the input end of the voltage regulating unit is connected with the power frequency three-phase alternating current power supply, and one direct current feeder line screen connected with the integrated power supply of the output end of the voltage regulating unit is opened;
2. the output voltage of the utility model is adjusted through the voltage adjusting unit (the output voltage can be adjusted to 10V), and the direct current feeder screen is opened; and observing whether the integrated power supply system can detect the alternating current and direct current, and sending out an acousto-optic alarm signal.
To sum up the utility model discloses simple structure, convenient to use compare in traditional test method, can simulate a plurality of faults simultaneously, carry out a plurality of tests of examining the project to the integration power to only need alone can accomplish the test, so simplified the on-the-spot work flow, can realize the quick test of integration power, improved efficiency of software testing, reduced the fault rate of integration power, improved equipment operating stability.
The integrated power supply comprehensive test device can be further optimized or/and improved according to actual needs:
as shown in fig. 2, the ground resistance simulation unit further includes a plurality of slide varistors R, and the sliding pieces and one end of each slide rheostor R are grounded.
In the above technical solution, the ground resistance simulation unit includes a plurality of sliding varistors R, and an overall resistance adjustment range of the ground resistance simulation unit may be 0 Ω to 50K Ω. In order to simulate the multipoint ground fault of the direct current system or the two-pole ground fault, the utility model discloses a slide rheostat R can be equipped with 4.
The utility model discloses in, ground resistance analog unit is used for simulating direct current ground fault, and concrete test procedure is as follows:
1. during testing, the grounding ends of all the slide rheostats R of the utility model are grounded through the test wire, and the output ends of all the slide rheostats R of the utility model are connected with a certain direct current feeder branch of the integrated power supply through the test wire;
2. and adjusting the output total resistance (the output total resistance can be adjusted to 25k omega) by adjusting the output resistance of each sliding rheostat R, observing whether the integrated power supply can detect the ground fault of the direct-current feeder line, and correctly selecting a branch of the ground feeder line.
As shown in the attached figure 1, the air conditioner also comprises a three-phase alternating current input air switch K2 and a three-phase alternating current output air switch K3, wherein the output end of the three-phase alternating current input air switch K2 is connected with the input end of a voltage regulating unit, and the output end of the voltage regulating unit is connected with the input end of a three-phase alternating current output air switch K3.
In the above technical solution, the three-phase ac input air switch K2 and the three-phase ac output air switch K3 are both known in the art, and have a capacity of 15A, and are respectively used for controlling on/off of input and output.
As shown in the attached figure 1, the air conditioner further comprises a three-phase alternating current input on-off display unit D1 and a three-phase alternating current output on-off display unit D2, wherein the three-phase alternating current input on-off display unit D1 is connected with the input end of the voltage regulating unit, and the output end of the voltage regulating unit is connected with the input end of a three-phase alternating current output air switch D2.
In the above technical solution, the three-phase ac output on-off display unit D2 may be connected to the two phases of the output terminal of the voltage regulating unit that are not connected to the ac missing item air switch K1 and the output terminal of the ac missing item air switch K1, respectively. Three-phase AC input break-make display element D1 and three-phase AC output break-make display element D2 are current known technology, all can include three pilot lamp for instruct the break-make of three-phase AC input and three-phase AC output, and know with the staff the utility model discloses an operating condition.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (5)
1. The integrated power supply comprehensive testing device is characterized by comprising a voltage regulating unit, a three-phase alternating-current input voltage display unit, a three-phase alternating-current output voltage display unit, a single-phase alternating-current output voltage display unit and an alternating-current missing air switch, wherein the three-phase alternating-current input voltage display unit is connected to the input end of the voltage regulating unit in parallel, any one phase of the output end of the voltage regulating unit is connected with the alternating-current missing air switch, and the three-phase alternating-current output voltage display unit and the single-phase alternating-current output voltage display unit are connected to the output end of the.
2. The integrated power supply comprehensive test device according to claim 1, further comprising a ground resistance simulation unit, wherein the ground resistance simulation unit comprises a plurality of slide varistors, and one end of each slide sheet of each slide rheostat is grounded.
3. The integrated power supply comprehensive test device according to claim 1 or 2, further comprising a three-phase alternating current input air switch and a three-phase alternating current output air switch, wherein an output end of the three-phase alternating current input air switch is connected with an input end of the voltage regulating unit, and an output end of the voltage regulating unit is connected with an input end of the three-phase alternating current output air switch.
4. The integrated power supply comprehensive test device according to claim 1 or 2, further comprising a three-phase alternating current input on-off display unit and a three-phase alternating current output on-off display unit, wherein the three-phase alternating current input on-off display unit is connected with an input end of the voltage regulating unit, and the three-phase alternating current output on-off display unit is connected with an output end of the voltage regulating unit.
5. The integrated power supply comprehensive test device according to claim 3, further comprising a three-phase alternating current input on-off display unit and a three-phase alternating current output on-off display unit, wherein the three-phase alternating current input on-off display unit is connected with the input end of the voltage regulating unit, and the three-phase alternating current output on-off display unit is connected with the output end of the voltage regulating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328894.0U CN213275909U (en) | 2020-10-19 | 2020-10-19 | Integrated power supply comprehensive testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022328894.0U CN213275909U (en) | 2020-10-19 | 2020-10-19 | Integrated power supply comprehensive testing device |
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| Publication Number | Publication Date |
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| CN213275909U true CN213275909U (en) | 2021-05-25 |
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| CN202022328894.0U Active CN213275909U (en) | 2020-10-19 | 2020-10-19 | Integrated power supply comprehensive testing device |
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| CN (1) | CN213275909U (en) |
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- 2020-10-19 CN CN202022328894.0U patent/CN213275909U/en active Active
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