CN211579587U - Auxiliary device for performing regular inspection on spare power automatic switching device - Google Patents
Auxiliary device for performing regular inspection on spare power automatic switching device Download PDFInfo
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- CN211579587U CN211579587U CN201922325639.8U CN201922325639U CN211579587U CN 211579587 U CN211579587 U CN 211579587U CN 201922325639 U CN201922325639 U CN 201922325639U CN 211579587 U CN211579587 U CN 211579587U
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Abstract
The utility model discloses an auxiliary device for carrying out the regular inspection on a spare power automatic switching device, which comprises a plurality of analog switches, an open-loop module, a 24V direct-current power supply module, a first pluggable connecting piece, a second pluggable connecting piece and a third pluggable connecting piece; the first connecting ends of the plurality of analog switches are connected with a first pluggable connecting piece; the second connecting ends of the plurality of analog switches are connected with a second pluggable connecting piece; the third connecting ends of the plurality of analog switches are connected with the first connecting end of the switch loop module; the second connecting end of the switch loop module is connected with a third pluggable connecting piece; the 24V direct current power supply module is used for providing required working power supply for the analog switch and the open-loop module. The automatic switching device can adapt to various manufacturers and various models of automatic switching devices, effectively reduces the safety risk of the automatic switching device on-site operation of the scheduled maintenance work, and improves the work efficiency of the automatic switching device on-site operation of the scheduled maintenance work.
Description
Technical Field
The utility model relates to an electric power system relay protection technical field, more specifically relates to an auxiliary device who carries out the scheduled maintenance to haulage oneself willingly into the device fully.
Background
With the development and efficient application of power systems, improving the power supply reliability and efficiency of power grids becomes an important means for ensuring the steady development of national economy. The following two methods are roughly used to improve the power supply reliability: firstly, the looped network is adopted for power supply, the power supply reliability can be improved to a great extent, but the multi-level looped network has certain risk influence on the stability of the system, so that the mode is less adopted in a medium-low voltage power grid; and secondly, a multi-power supply mode can improve the power supply reliability, but brings operation difficulties in aspects such as relay protection coordination and the like. Therefore, the power supply mode widely selected and used in the medium and low voltage power grid is a single-circuit power supply mode, namely a mode of automatically switching to a standby power supply for supplying power when a fault occurs, namely a spare power automatic switching mode.
In order to ensure that the spare power automatic switching device can correctly act, the relay protection professional needs to perform regular inspection on the spare power automatic switching device every three years according to the inspection regulations. The spare power automatic switching device belongs to an automatic safety device, during regular inspection, intervals participating in spare power switching rarely have power failure, so that the spare power automatic switching device needs to work without power failure, and in order to meet safety conditions and logic requirements of field operation, a lot of earlier-stage work needs to be done on the field, including isolating a current-voltage loop, disconnecting a tripping loop and opening a switching-in and switching-out loop. In the process of the regular inspection of the spare power automatic switching device, a logic test is required, and a tripping and closing loop and an opening and closing loop are required to be provided for the logic test. After the test is finished, the original position is obtained after the single connection according to the secondary loop measure.
Such a test method has the following disadvantages: 1. in the process of disconnecting, the wire is easy to be disconnected, or because no safety measures are taken, short circuit is caused, and the switch is operated by error tripping; 2. in the process of wiring, the position is easy to be wrongly connected, because the switch is in the running state, the correctness of the wiring cannot be verified through a transmission test, the switch can be rejected, and in addition, in the process of connecting, the short circuit can be caused due to insufficient safety measures, and the switch can be mistakenly jumped. Therefore, it is easy to see that the safety risk of the related secondary safety measures required for completing the scheduled inspection of the automatic backup power switching device is often high and time-consuming, and needs a high technical skill level, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve and accomplish the required relevant secondary safety measure's of haulage oneself willingly into device level examination safety risk of being equipped with at present very high and consuming time to need higher technical skill level, and the problem of efficiency is very low, an auxiliary device that carries out the level examination to haulage willingly into device is hauled willingly into fully, it can adapt to each producer, the haulage willingly into device is fully equipped with of each model, and effectively reduce haulage willingly into device level examination job site operation safety risk fully, improve the work efficiency of haulage willingly into device level examination field operation fully.
In order to realize the above, the utility model discloses the purpose, the technical scheme of adoption as follows: an auxiliary device for carrying out regular inspection on a spare power automatic switching device comprises a plurality of analog switches, an open-loop module, a 24V direct-current power supply module, a first pluggable connecting piece, a second pluggable connecting piece and a third pluggable connecting piece;
the first connecting ends of the plurality of analog switches are connected with a first pluggable connecting piece;
the second connecting ends of the plurality of analog switches are connected with a second pluggable connecting piece;
the third connecting ends of the plurality of analog switches are connected with the first connecting end of the switch loop module;
the second connecting end of the switch loop module is connected with a third pluggable connecting piece;
the 24V direct-current power supply module is used for supplying power to the analog switch. The open-loop module provides the required working power supply.
In specific application, the auxiliary device further comprises a box body and a control panel, wherein the plurality of analog switches, the open-circuit loop module, the 24V direct-current power supply module, the first pluggable connecting piece, the second pluggable connecting piece and the third pluggable connecting piece are all arranged on the control panel; the control panel is arranged in the box body, and when the control panel is used, the box body is opened, and the connecting piece is connected with the spare power automatic switching device.
Preferably, the analog switch comprises an indicator light circuit, a driving contact action circuit and a circuit for externally connecting a test loop;
the power end of the indicator light circuit and the power end of the driving contact action circuit are connected with the 24V direct-current power supply module;
the output end of the driving contact action circuit is connected with a first pluggable connecting piece;
the first end of the external test loop circuit is connected with the second pluggable connecting piece;
the second end of the external test loop circuit is connected with the first connecting end of the switch loop module.
Further, the indicator light circuit comprises a resistor R1, a resistor R2, a resistor R3, a light-emitting diode D1, a light-emitting diode D2, a light-emitting diode D3, a relay RL2A, a diode D4, a two-position relay RL1C and a wiring terminal P3;
one end of the resistor R1 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R1 is connected with a first pin of a double-position relay RL1C through a light-emitting diode D1;
one end of the resistor R2 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R2 is connected with a second pin of the double-position relay RL1C through a light-emitting diode D2;
a third pin of the dual-position relay RL1C is grounded;
one end of the resistor R3 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R3 is connected with a first pin of a wiring terminal P3 through a light-emitting diode D3;
one end of the relay RL2A and the diode D4 which are connected in parallel is connected with the anode of the 24V direct-current power supply module; the relay RL2A and the diode D4 are connected in parallel, and then the other end of the relay RL2A is connected with a first pin of a wiring terminal P3;
the second pin of the line terminal P3 is grounded.
Still further, the light emitting diode D1 adopts a red LED lamp; the light emitting diode D2 adopts a green LED lamp; the light emitting diode D3 adopts a yellow LED lamp.
Still further, the driving contact actuating circuit comprises a connecting terminal P1, a connecting terminal P2, a relay RL1A, a relay RL1B, a diode D5 and a diode D6;
one end of the connecting terminal P1 is connected with the positive pole of the 24V direct-current power supply module;
the other end of the wiring terminal P1 is respectively connected with one end of a diode D5 and one end of a relay RL 1A;
the other end of the diode D5 and the other end of the relay RL1A are grounded;
one end of the connecting terminal P2 is connected with the positive pole of the 24V direct current power supply module
The other end of the wiring terminal P2 is respectively connected with one end of a diode D6 and one end of a relay RL 1B;
the other end of the diode D6 and the other end of the relay RL1B are grounded;
one pin of the first pluggable connector is connected between the wiring terminal P1 and the relay RL 1A;
the other pin of the second pluggable connector is connected between the wiring terminal P2 and the relay RL 1B.
Still further, the circuit for the external test loop comprises a double-position relay RL1D and a double-position relay RL 2B;
the first pin of the double-position relay RL1D and the first pin of the double-position relay RL2B are both connected with one pin of a second pluggable connector;
a second pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the third pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the second pin of the double-position relay RL2B is connected with one pin of the second pluggable connector.
Still further, the analog switch is provided with 8 paths.
Furthermore, the open-loop circuit is provided with a plurality of indicator lights; and a relay is connected in series in each path of indicator light.
Still further, the pilot lamp be equipped with 16 ways.
The utility model has the advantages as follows:
the utility model discloses to be equipped with automatic switching device about tripping and closing outlet contact, the switch position contact, other division income contacts directly draw forth through the connecting piece, then through the connecting wire with the utility model discloses an auxiliary device links to each other, no longer through the terminal row. The utility model discloses an auxiliary device can be applicable to the spare power automatic switching device of each model of each producer, avoids opening the safe risk that the return circuit brought into of opening of operation spaced tripping and closing return circuit and switch position simultaneously, effectively improves the security and the work efficiency of the spare power automatic switching device level checking.
Drawings
Fig. 1 is a schematic diagram of an analog switch according to embodiment 1.
FIG. 2 is the indicator light circuit of FIG. 1, used to externally connect a test loop circuit.
Fig. 3 shows a driving contact operating circuit in fig. 1.
Fig. 4 is a schematic diagram showing the connection of an 8-way analog switch.
Fig. 5 is a schematic diagram showing the connection of the 8-way analog switch to the first pluggable connector and the second pluggable connector.
Fig. 6 is a schematic diagram of an open-loop circuit according to embodiment 1.
Fig. 7 is a schematic diagram of the connection of the 16-way indicator lamp in fig. 6.
Fig. 8 is a schematic view of the connection of the third pluggable connector of fig. 7.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, an auxiliary device for performing a regular inspection on a spare power automatic switching device includes a plurality of analog switches, an open-loop circuit module, a 24V dc power supply module, a first pluggable connecting member, a second pluggable connecting member, and a third pluggable connecting member;
the first connecting ends of the plurality of analog switches are connected with a first pluggable connecting piece;
the second connecting ends of the plurality of analog switches are connected with a second pluggable connecting piece;
the third connecting ends of the plurality of analog switches are connected with the first connecting end of the switch loop module;
the second connecting end of the switch loop module is connected with a third pluggable connecting piece;
the 24V direct-current power supply module is used for supplying power to the analog switch. The open-loop module provides the required working power supply.
In specific application, the auxiliary device further comprises a box body and a control panel, wherein the plurality of analog switches, the open-circuit loop module, the 24V direct-current power supply module, the first pluggable connecting piece, the second pluggable connecting piece and the third pluggable connecting piece are all arranged on the control panel; the control panel is arranged in the box body, and when the control panel is used, the box body is opened, and the connecting piece is connected with the spare power automatic switching device.
In a specific embodiment, as shown in fig. 2, 3, 4, and 5, the analog switch includes an indicator light circuit, a driving contact action circuit, and a circuit for externally connecting to a test loop;
the power end of the indicator light circuit and the power end of the driving contact action circuit are connected with the 24V direct-current power supply module;
the output end of the driving contact action circuit is connected with a first pluggable connecting piece;
the first end of the external test loop circuit is connected with the second pluggable connecting piece;
the second end of the external test loop circuit is connected with the first connecting end of the switch loop module.
In a specific embodiment, as shown in fig. 2, the indicator light circuit includes a resistor R1, a resistor R2, a resistor R3, a light emitting diode D1, a light emitting diode D2, a light emitting diode D3, a relay RL2A, a diode D4, a two-position relay RL1C, and a connection terminal P3;
one end of the resistor R1 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R1 is connected with a first pin of a double-position relay RL1C through a light-emitting diode D1;
one end of the resistor R2 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R2 is connected with a second pin of the double-position relay RL1C through a light-emitting diode D2;
a third pin of the dual-position relay RL1C is grounded;
one end of the resistor R3 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R3 is connected with a first pin of a wiring terminal P3 through a light-emitting diode D3;
one end of the relay RL2A and the diode D4 which are connected in parallel is connected with the anode of the 24V direct-current power supply module; the relay RL2A and the diode D4 are connected in parallel, and then the other end of the relay RL2A is connected with a first pin of a wiring terminal P3;
the second pin of the line terminal P3 is grounded.
In the embodiment, a light emitting diode D1 is used for indicating a switching-on position, a light emitting diode D2 is used for indicating a tripping position, and a light emitting diode D3 is used for indicating a switching-on position; in the embodiment, a two-position relay KG is adopted, namely, after the action, the resetting can be realized only by inputting a resetting signal, the closing loops 1D1 to 1D4 are switched in for action, and the tripping loops 1D1 to 1D2 are switched in for resetting. After switching on, the electric appliance is provided by an HHJ holding relay, and the HHA button is pressed to act, and the electric appliance is reset by pressing the HHA button again.
In a specific embodiment, the light emitting diode D1 is a red LED lamp; the light emitting diode D2 adopts a green LED lamp; the light emitting diode D3 adopts a yellow LED lamp. In the embodiment, lights with different colors are adopted, so long as the lights are distinguished conveniently. Other leds of different colors may also be used in this embodiment.
In the specific embodiment, as shown in fig. 3, the driving contact actuating circuit includes a connection terminal P1, a connection terminal P2, a relay RL1A, a relay RL1B, a diode D5, and a diode D6;
one end of the connecting terminal P1 is connected with the positive pole of the 24V direct-current power supply module;
the other end of the wiring terminal P1 is respectively connected with one end of a diode D5 and one end of a relay RL 1A;
the other end of the diode D5 and the other end of the relay RL1A are grounded;
one end of the connecting terminal P2 is connected with the positive pole of the 24V direct current power supply module
The other end of the wiring terminal P2 is respectively connected with one end of a diode D6 and one end of a relay RL 1B;
the other end of the diode D6 and the other end of the relay RL1B are grounded;
one pin of the first pluggable connector is connected between the wiring terminal P1 and the relay RL 1A;
the other pin of the second pluggable connector is connected between the wiring terminal P2 and the relay RL 1B.
The automatic power-on and power-off switch is used for manually driving the contact to act, and other auxiliary switches needed in the automatic power-on and power-off scheduled inspection are freely controlled by the driving contact action circuit, so that different requirements of devices of different manufacturers and different models are met.
In a specific embodiment, as shown in fig. 2, the circuit for external test loop includes a two-position relay RL1D, a two-position relay RL 2B;
the first pin of the double-position relay RL1D and the first pin of the double-position relay RL2B are both connected with one pin of a second pluggable connector;
a second pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the third pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the second pin of the double-position relay RL2B is connected with one pin of the second pluggable connector.
Be used for external test circuit will the utility model discloses an auxiliary device links to each other with being equipped with the automatic switching device, reaches the utility model discloses the predetermined target.
In a specific embodiment, the analog switch is provided with 8 paths. In this embodiment, a total of 8 analog switches are provided, i.e., 8 sets of identical wiring are required. The 8-path switching-on and switching-off coil adopts a holding relay, namely after action, the resetting can be realized only by inputting a resetting signal, a switching-on loop is switched in to act, and a tripping loop is switched in to reset.
In a specific embodiment, as shown in fig. 6, 7 and 8, the open-loop circuit is provided with a plurality of indicator lights; and a relay is connected in series in each path of indicator light. In a specific embodiment, the indicator light is provided with 16 paths.
The open-in loop circuit is used for manually driving the contact to act, and other auxiliary open-in circuits required during the automatic backup power switching scheduled inspection are freely controlled by the drive contact action circuit so as to meet different requirements of devices of different manufacturers and different models.
The indicator light in the embodiment is used for displaying the contact which is specifically opened, so that the inspection and the check in the regular inspection are convenient.
The control panel of the auxiliary device of the utility model is provided with a button and an indicator light, which can freely set the switch position and the input and output amount; the tripping and closing outlet contact, the switch position contact and other switching in contacts of the spare power automatic switching device form a mapping relation with the buttons and the indicator lamps.
The auxiliary device is provided with a connecting piece which is convenient for pulling and plugging a connecting wire, and the connecting piece is connected with a tripping and closing outlet contact, a switch position contact and other switching-in contacts of the automatic bus transfer device through the connecting wire.
The team personnel of succeeding in the guarantor at present are not enough, and flow fast, and team work task is heavy under the current situation, the utility model discloses a solution team personnel that auxiliary device can be fine arrange to catch the front of a garment and see the problem of elbow, improve the level of site operation risk management and control, reduce the site operation risk, this auxiliary device except can promoting at the guangdong electric wire netting, can also follow guarantor team and other units that need maintain and be equipped with the haulage device in south electric wire netting and promote.
The working principle of the embodiment is as follows: the required external input return circuit when will be equipped with the automatic switching device and examine surely to and the return circuit of opening of the automatic switching device of being equipped with passes through the utility model discloses the device directly provides, and then satisfies the required logic of automatic switching and examine surely to open into and open out the contact. The method comprises the following specific steps: 1. the coil of the switch is provided by a holding relay, and the project proposes to use a double-position relay KG to ensure that a closing coil and an opening coil share one relay, so that one relay is saved; 2. the position of the switch is provided with an auxiliary contact of a double-position relay, so that the position of the switch can be well reflected; 3. the on-off electric appliance is provided by an HHJ holding relay and can reflect the on-off position of the switch after hand-on. 4. Other switches, such as a latching backup power switch, are simulated by other relays. 5. The relays and the contacts are directly connected with the corresponding positions of the backup power automatic switching protection device through connecting wires, so that the preset aim of the project is achieved.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides an auxiliary device that carries out regular inspection to spare power automatic switching device which characterized in that: the system comprises a plurality of analog switches, an open-loop circuit module, a 24V direct-current power supply module, a first pluggable connecting piece, a second pluggable connecting piece and a third pluggable connecting piece;
the first connecting ends of the plurality of analog switches are connected with a first pluggable connecting piece;
the second connecting ends of the plurality of analog switches are connected with a second pluggable connecting piece;
the third connecting ends of the plurality of analog switches are connected with the first connecting end of the switch loop module;
the second connecting end of the switch loop module is connected with a third pluggable connecting piece;
the 24V direct current power supply module is used for providing required working power supply for the analog switch and the open-loop module.
2. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 1, wherein: the analog switch comprises an indicator light circuit, a driving contact action circuit and a circuit for externally connecting a test loop;
the power end of the indicator light circuit and the power end of the driving contact action circuit are connected with the 24V direct-current power supply module;
the output end of the driving contact action circuit is connected with a first pluggable connecting piece;
the first end of the external test loop circuit is connected with the second pluggable connecting piece;
the second end of the external test loop circuit is connected with the first connecting end of the switch loop module.
3. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 2, wherein: the indicating lamp circuit comprises a resistor R1, a resistor R2, a resistor R3, a light-emitting diode D1, a light-emitting diode D2, a light-emitting diode D3, a relay RL2A, a diode D4, a double-position relay RL1C and a wiring terminal P3;
one end of the resistor R1 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R1 is connected with a first pin of a double-position relay RL1C through a light-emitting diode D1;
one end of the resistor R2 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R2 is connected with a second pin of the double-position relay RL1C through a light-emitting diode D2;
a third pin of the dual-position relay RL1C is grounded;
one end of the resistor R3 is connected with the positive electrode of the 24V direct-current power supply module;
the other end of the resistor R3 is connected with a first pin of a wiring terminal P3 through a light-emitting diode D3;
one end of the relay RL2A and the diode D4 which are connected in parallel is connected with the anode of the 24V direct-current power supply module; the relay RL2A and the diode D4 are connected in parallel, and then the other end of the relay RL2A is connected with a first pin of a wiring terminal P3;
the second pin of the line terminal P3 is grounded.
4. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 3, wherein: the light emitting diode D1 adopts a red LED lamp; the light emitting diode D2 adopts a green LED lamp; the light emitting diode D3 adopts a yellow LED lamp.
5. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 2, wherein: the driving contact action circuit comprises a connecting terminal P1, a connecting terminal P2, a relay RL1A, a relay RL1B, a diode D5 and a diode D6;
one end of the connecting terminal P1 is connected with the positive pole of the 24V direct-current power supply module;
the other end of the wiring terminal P1 is respectively connected with one end of a diode D5 and one end of a relay RL 1A;
the other end of the diode D5 and the other end of the relay RL1A are grounded;
one end of the connecting terminal P2 is connected with the positive pole of the 24V direct current power supply module
The other end of the wiring terminal P2 is respectively connected with one end of a diode D6 and one end of a relay RL 1B;
the other end of the diode D6 and the other end of the relay RL1B are grounded;
one pin of the first pluggable connector is connected between the wiring terminal P1 and the relay RL 1A;
the other pin of the second pluggable connector is connected between the wiring terminal P2 and the relay RL 1B.
6. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 2, wherein: the circuit for the external test loop comprises a double-position relay RL1D and a double-position relay RL 2B;
the first pin of the double-position relay RL1D and the first pin of the double-position relay RL2B are both connected with one pin of a second pluggable connector;
a second pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the third pin of the double-position relay RL1D is connected with one pin of a second pluggable connector;
the second pin of the double-position relay RL2B is connected with one pin of the second pluggable connector.
7. The auxiliary device for performing the regular inspection of the spare power automatic switching device according to any one of claims 2 to 6, wherein: the analog switch is provided with 8 paths.
8. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 7, wherein: the indicator light is provided with 16 paths.
9. The auxiliary device for performing the regular inspection of the automatic standby power switching device according to claim 8, wherein: the first pluggable connecting piece, the second pluggable connecting piece and the third pluggable connecting piece are all aviation connectors with 32 holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922325639.8U CN211579587U (en) | 2019-12-20 | 2019-12-20 | Auxiliary device for performing regular inspection on spare power automatic switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922325639.8U CN211579587U (en) | 2019-12-20 | 2019-12-20 | Auxiliary device for performing regular inspection on spare power automatic switching device |
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| CN211579587U true CN211579587U (en) | 2020-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064170A (en) * | 2019-12-20 | 2020-04-24 | 广东电网有限责任公司 | Auxiliary device for performing regular inspection on spare power automatic switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111064170A (en) * | 2019-12-20 | 2020-04-24 | 广东电网有限责任公司 | Auxiliary device for performing regular inspection on spare power automatic switching device |
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