CN204613737U - Switch Simulator - Google Patents
Switch Simulator Download PDFInfo
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- CN204613737U CN204613737U CN201520303941.2U CN201520303941U CN204613737U CN 204613737 U CN204613737 U CN 204613737U CN 201520303941 U CN201520303941 U CN 201520303941U CN 204613737 U CN204613737 U CN 204613737U
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- pair
- separating brake
- relay
- pilot lamp
- switch
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- Expired - Lifetime
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Abstract
The utility model relates to power equipment debugging technique field, especially relates to a kind of switch analogue means.Comprise transmission line of electricity and analog switching circuit; Analog switching circuit comprises closing relay, separating brake relay, combined floodgate pilot lamp, separating brake pilot lamp and multipair connection terminal; First pair of wire connection terminals, the second pair of wire connection terminals access transmission line of electricity respectively with after the coils connected in series of closing relay, separating brake relay; Close a floodgate and separating brake pilot lamp connect with a pair normally opened contact of closing relay and a pair normally closed contact respectively after access transmission line of electricity; After a pair normally opened contact of closing relay is connected with a pair normally closed contact of separating brake relay, in parallel with the two ends of the first pair of wire connection terminals; All the other each pair of wire connection terminals respectively with all the other each pair of contact series of closing relay.Can will organize analog switching circuit parallel connection more, form Multi-Switch analogue means.Can the operating state of analog operation/Backup Power Switch, carry out the switching tests of apparatus for fast switching in a static condition.
Description
Technical field
The utility model relates to power equipment debugging technique field, especially relates to a kind of switch analogue means.
Background technology
Often need the combined floodgate of checkout facility and the duty of separating brake in electric system, and need from equipment, obtain effective feedback signal; And, also often need in electric system to use standby power supply to cut soon or backup auto-activating device.In existing electric system, the work of use and standby power supply are cut soon or backup auto-activating device needs off-line to access two standby electricity air cocks or accessing real work switch carries out debugging efforts online.
Above-mentioned work and standby power supply are cut soon or backup auto-activating device needs to purchase two switches in off-line testing simultaneously, and investment is comparatively large, and wiring is complicated, tests loaded down with trivial details.Further, on-line debugging needs the operation carrying out repeatedly power switch, shortens the serviceable life of switch, even causes switching damage.
Utility model content
The purpose of this utility model is to provide a kind of switch analogue means, to solve the technical matters existed in prior art.
A kind of switch analogue means that the utility model provides, comprising:
Isolating switch, power input terminal and analog switching circuit;
Described power input terminal is connected with isolating switch, forms transmission line of electricity;
Described analog switching circuit comprises closing relay, separating brake relay, combined floodgate pilot lamp, separating brake pilot lamp and some pair of wire connection terminals;
Transmission line of electricity is accessed after the coils connected in series of the first pair of wire connection terminals and closing relay;
Transmission line of electricity is accessed after the coils connected in series of the second pair of wire connection terminals and separating brake relay;
Combined floodgate pilot lamp accesses transmission line of electricity after connecting with first pair of normally opened contact of closing relay;
Separating brake pilot lamp accesses transmission line of electricity after connecting with first pair of normally closed contact of closing relay;
After second pair of normally opened contact of described closing relay is connected with a pair normally closed contact of described separating brake relay, in parallel with the two ends of the first pair of wire connection terminals;
All the other each pair of wire connection terminals are connected with all the other each pair of normally opened contacts of closing relay or all the other each pair of normally closed contacts respectively.
Further, described analog switching circuit is more than two, and each group analog switching circuit is connected in parallel on transmission line of electricity simultaneously.
Further, also comprise housing and be arranged on the panel of surface of shell.
Further, the combined floodgate pilot lamp in described isolating switch, power input terminal and analog switching circuit, separating brake pilot lamp, some pair of wire connection terminals are arranged on described panel; Closing relay in described analog switching circuit and separating brake relay are arranged on described enclosure interior.
Further, in described analog switching circuit, have: the 3rd pair of branch road that normally opened contact is connected of one article of the 3rd pair of wire connection terminals and closing relay, and the branch road that one article of the 4th pair of wire connection terminals is connected with second pair of normally opened contact of closing relay.
Further, described isolating switch is 5SJ62-C10 type isolating switch.
Further, described closing relay and separating brake relay are HH54P type relay.
Further, described combined floodgate pilot lamp and separating brake pilot lamp are ND16-22DS/4 type pilot lamp.
Further, described combined floodgate pilot lamp is different from the color of separating brake pilot lamp.
Further, the wire connecting described each parts is RVV1.5 type wire.
The beneficial effects of the utility model are;
The utility model uses the combination of multiple relay to replace switch, can the operating state of analog operation/Backup Power Switch, the switching tests of apparatus for fast switching can be carried out in a static condition, need not actual use work/Backup Power Switch simulate, can off-line check function, shorten at the standby power off time of installing, simplify test procedure, make test more safe and reliable.
When filling unit check, using switch analogue means can reduce repeatedly the frequent operation of power switch, extending the serviceable life of switch.
The utility model can arrange the quantity of analog switch as required voluntarily, to meet the demand of different tests scheme.
Principle of the present utility model and wiring simply, are formed installation and compact conformation, are easy to mobile; Panel subregion is arranged, be easy to wiring, state is clear.
The utility model also as protective device, can use checking the occasion needing belt switch to operate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 (a) and Fig. 1 (b) are respectively the key wiring diagram of Single switch analogue means that the utility model first embodiment provide and the sky of Single switch analogue means connects partial wiring diagram.
Fig. 2 (a) and Fig. 2 (b) are respectively the key wiring diagram of biswitch analogue means that the utility model second embodiment provide and the sky of biswitch analogue means connects partial wiring diagram.
The external structure schematic diagram of the biswitch analogue means that Fig. 3 provides for the utility model second embodiment.
Reference numeral:
1-housing; 2-power input terminal; 3-isolating switch;
4-combined floodgate pilot lamp; 5-separating brake pilot lamp; 6-connection terminal;
7-first group of analog switch; 8-second group of analog switch.
Embodiment
Be clearly and completely described the technical solution of the utility model below in conjunction with accompanying drawing, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Embodiment 1:
Fig. 1 (a) and Fig. 1 (b) are respectively the key wiring diagram of Single switch analogue means that the utility model first embodiment provide and the sky of Single switch analogue means connects partial wiring diagram.
As shown in Fig. 1 (a) He Fig. 1 (b), specifically consisting of of the circuit part of this Single switch analogue means:
Power input terminal JXZ01 and JXZ02 connects with circuit breaker Q F, and form transmission line of electricity, voltage is alternating current 220V, and power input terminal JXZ01 color is red, and as positive source, power input terminal JXZ02 color is green, as power cathode.
Circuit breaker Q F is 5SJ62-C10 type isolating switch.
Connection terminal amounts to 8, is respectively JXZ11, JXZ12 ... until JXZ18, wherein, the color of JXZ11, JXZ13, JXZ15, JXZ17 is red, and the color of JXZ12, JXZ14, JXZ16, JXZ18 is green.
Connection terminal JXZ11 and JXZ12, as the first pair of wire connection terminals, accesses transmission line of electricity with after the coils connected in series of closing relay Q1;
Connection terminal JXZ13 and JXZ14, as the second pair of wire connection terminals, accesses transmission line of electricity with after the coils connected in series of separating brake relay K 1;
First couple of normally opened contact Q1 of combined floodgate pilot lamp HD1 and closing relay Q1
open-1transmission line of electricity is accessed after series connection;
First couple of normally closed contact Q1 of separating brake pilot lamp LD1 and closing relay Q1
close-1transmission line of electricity is accessed after series connection;
Second couple of normally opened contact Q1 of closing relay Q1
open-2with a pair normally closed contact K1 of separating brake relay K 1
close-1after series connection, in parallel with the two ends of the first pair of wire connection terminals JXZ11 and JXZ12;
The 3rd couple of normally opened contact Q1 of connection terminal JXZ15 and JXZ16 and closing relay Q1
open-3series connection;
Second couple of normally closed contact Q1 of connection terminal JXZ17 and JXZ18 and closing relay Q1
close-2series connection.
Closing relay Q1 and separating brake relay K 1 are HH54P type relay, and its voltage is AC220V, and electric current is 5A.
Combined floodgate pilot lamp HD1 is red ND16-22DS/4 type pilot lamp, and separating brake pilot lamp LD1 is green ND16-22DS/4 type pilot lamp.The voltage of combined floodgate pilot lamp HD1 and separating brake pilot lamp LD1 is AC240V.
Connection wire between each device is RVV1.5 type wire.
During use, connection terminal JXZ11 and JXZ12 can be accessed the working power switch closing circuit of Devices to test, connection terminal JXZ13 and JXZ14 be accessed the working power switch sub-gate circuit of Devices to test.Connection terminal JXZ15 and JXZ16 is accessed the working power switch of Devices to test " to close a floodgate " feedback, connection terminal JXZ17 and JXZ18 is accessed working power switch " separating brake " feedback of Devices to test, thus can check and observe combined floodgate and the gate-dividing state of Devices to test.
In electric power factory equipment, switching signal is generally pulse signal, after connection terminal JXZ11 and JXZ12 accepts this pulse signal, make the coil electricity of closing relay Q1, allow each normally opened contact conducting, each normally closed contact disconnects, even if combined floodgate pilot lamp HD1 is bright, the signal feedback of simultaneously having been closed a floodgate by first group of analog switch (representing working power switch) by connection terminal JXZ15 and JXZ16 is to Devices to test.
Connection terminal JXZ11 and JXZ12 is after accepting pulse signal, and first group of analog switch ensures to be in the state of being incorporated into by self-holding circuit always.
After connection terminal JXZ13 and JXZ14 receives sub-gate signal, a pair normally closed contact K1 of separating brake relay K 1
close-1disconnect, thus make the coil two ends power down of closing relay Q1, the normally opened contact of closing relay Q1 disconnects, normally closed contact conducting, thus make separating brake pilot lamp LD1 bright, connection terminal JXZ17 and JXZ18 by the signal feedback of first group of analog switch (represent working power close) separating brake to Devices to test.
Embodiment 2:
Fig. 2 (a) and Fig. 2 (b) are respectively the key wiring diagram of biswitch analogue means that the utility model second embodiment provide and the sky of biswitch analogue means connects partial wiring diagram.
As shown in Fig. 2 (a) He Fig. 2 (b), specifically consisting of of the circuit part of this biswitch analogue means:
Power input terminal JXZ01 and JXZ02 connects with circuit breaker Q F, and form transmission line of electricity, voltage is alternating current 220V, and power input terminal JXZ01 color is red, and as positive source, power input terminal JXZ02 color is green, as power cathode.
Circuit breaker Q F is 5SJ62-C10 type isolating switch.
Connection terminal amounts to 16, is divided into two groups, is respectively JXZ11, JXZ12 ... until JXZ18, and JXZ21, JXZ22 ... until JXZ28, form the terminals of first group of analog switch and second group of analog switch respectively.
Wherein, the color of JXZ11, JXZ13, JXZ15, JXZ17, JXZ21, JXZ23, JXZ25, JXZ27 is red, and the color of JXZ12, JXZ14, JXZ16, JXZ18, JXZ22, JXZ24, JXZ26, JXZ28 is green.
Connection terminal JXZ11 and JXZ12, as the first pair of wire connection terminals of first group of analog switch, accesses transmission line of electricity with after the coils connected in series of closing relay Q1;
Connection terminal JXZ13 and JXZ14, as the second pair of wire connection terminals of first group of analog switch, accesses transmission line of electricity with after the coils connected in series of separating brake relay K 1;
First couple of normally opened contact Q1 of combined floodgate pilot lamp HD1 and closing relay Q1
open-1transmission line of electricity is accessed after series connection;
First couple of normally closed contact Q1 of separating brake pilot lamp LD1 and closing relay Q1
close-1transmission line of electricity is accessed after series connection;
Second couple of normally opened contact Q1 of closing relay Q1
open-2with a pair normally closed contact K1 of separating brake relay K 1
close-1after series connection, in parallel with the first pair of wire connection terminals JXZ11 of first group of analog switch and the two ends of JXZ12;
The 3rd couple of normally opened contact Q1 of connection terminal JXZ15 and JXZ16 and closing relay Q1
open-3series connection;
Second couple of normally closed contact Q1 of connection terminal JXZ17 and JXZ18 and closing relay Q1
close-2series connection.
Connection terminal JXZ21 and JXZ22, as the first pair of wire connection terminals of second group of analog switch, accesses transmission line of electricity with after the coils connected in series of closing relay Q2;
Connection terminal JXZ23 and JXZ24, as the second pair of wire connection terminals of second group of analog switch, accesses transmission line of electricity with after the coils connected in series of separating brake relay K 2;
First couple of normally opened contact Q2 of combined floodgate pilot lamp HD2 and closing relay Q2
open-1transmission line of electricity is accessed after series connection;
First couple of normally closed contact Q2 of separating brake pilot lamp LD2 and closing relay Q2
close-1transmission line of electricity is accessed after series connection;
Second couple of normally opened contact Q2 of closing relay Q2
open-2with a pair normally closed contact K2 of separating brake relay K 2
close-1after series connection, in parallel with the first pair of wire connection terminals JXZ21 of second group of analog switch and the two ends of JXZ22;
The 3rd couple of normally opened contact Q2 of connection terminal JXZ25 and JXZ26 and closing relay Q2
open-3series connection;
Second couple of normally closed contact Q2 of connection terminal JXZ27 and JXZ28 and closing relay Q2
close-2series connection.
Closing relay Q1, Q2 and separating brake relay K 1, K2 are HH54P type relay, and its voltage is AC220V, and electric current is 5A.
Combined floodgate pilot lamp HD1, HD2 are red ND16-22DS/4 type pilot lamp, and separating brake pilot lamp LD1, LD2 are green ND16-22DS/4 type pilot lamp.The voltage of combined floodgate pilot lamp HD1, HD2 and separating brake pilot lamp LD1, LD2 is AC240V.
Be used for the simulated experiment of WBKQ-01B station-service apparatus for fast switching below for described biswitch analogue means, set forth the use procedure of biswitch analogue means further.
In certain power plant system, 6KV station service is divided into 1-6 power-feed section, and every section has work/two power switches for subsequent use, and the switching of work/Backup Power Switch uses WBKQ-01B station-service apparatus for fast switching to carry out.Use the operating state of biswitch analogue means analog operation/Backup Power Switch, the switching tests of WBKQ-01B station-service apparatus for fast switching can be carried out in a static condition, need not actual use work/Backup Power Switch simulate, simplify test procedure, make test more safe and reliable.
Concrete test procedure is as follows:
(1) first of biswitch analogue means group of analog switch is regarded working power switch; Second group of analog switch is as Backup Power Switch.
(2) connection terminal JXZ11 and JXZ12 of biswitch analogue means is accessed the working power switch closing circuit of WBKQ-01B station-service apparatus for fast switching, connection terminal JXZ13 and JXZ14 accesses the working power switch sub-gate circuit of WBKQ-01B station-service apparatus for fast switching.The working power switch that connection terminal JXZ15 and JXZ16 accesses WBKQ-01B station-service apparatus for fast switching " closes a floodgate " backfeed loop.
(3) connection terminal JXZ21 and JXZ22 of biswitch analogue means is accessed the Backup Power Switch closing circuit of WBKQ-01B station-service apparatus for fast switching, connection terminal JXZ23 and JXZ24 accesses the Backup Power Switch sub-gate circuit of WBKQ-01B station-service apparatus for fast switching.The Backup Power Switch that connection terminal JXZ25 and JXZ26 accesses WBKQ-01B station-service apparatus for fast switching " is closed a floodgate " backfeed loop.
(4) because WBKQ-01B station-service apparatus for fast switching switching signal is pulse signal, after connection terminal JXZ11 and JXZ12 accepts this pulse signal, make the coil electricity of closing relay Q1, allow each normally opened contact conducting, each normally closed contact disconnects, even if HD1 is bright for combined floodgate pilot lamp, the signal feedback of simultaneously having been closed a floodgate by first group of analog switch (representing working power switch) by connection terminal JXZ15 and JXZ16 is to WBKQ-01B station-service apparatus for fast switching.
Connection terminal JXZ11 and JXZ12 is after accepting pulse signal, and first group of analog switch ensures to be in the state of being incorporated into by self-holding circuit always.
After connection terminal JXZ13 and JXZ14 receives sub-gate signal, a pair normally closed contact K1 of separating brake relay K 1
close-1disconnect, thus make the coil two ends power down of closing relay Q1, the normally opened contact of closing relay Q1 disconnects, normally closed contact conducting, thus make separating brake pilot lamp LD1 bright, connection terminal JXZ17 and JXZ18 by the signal feedback of first group of analog switch (represent working power close) separating brake to WBKQ-01B station-service apparatus for fast switching.
(5) WBKQ-01B station-service apparatus for fast switching handoff functionality (being first incorporated into " standby power supply " to separate again " working power ") in parallel is tested, test WBKQ-01B station-service apparatus for fast switching is incorporated into second group of analog switch (representing Backup Power Switch) by connection terminal JXZ21 and JXZ22, second group of analog switch ensures to be in the state of being incorporated into by self-holding circuit always, and the signal feedback of simultaneously having been closed a floodgate by second group of analog switch (representing working power switch) by connection terminal JXZ25 and JXZ26 is to WBKQ-01B station-service apparatus for fast switching; WBKQ-01B station-service apparatus for fast switching is by connection terminal JXZ13 and JXZ14 first group of analog switch (representing working power switch) separating brake, pass through connection terminal JXZ17 and JXZ18 by the signal feedback of first group of analog switch separating brake (representing working power to close) to WBKQ-01B station-service apparatus for fast switching simultaneously, indicated by state, verify that whether this switch logic is correct.
Standby power supply is wired to the switching tests in parallel of working power that this is identical.
The external structure schematic diagram of the dual analog switchgear that Fig. 3 provides for the utility model second embodiment.As shown in Figure 3, described dual analog switchgear from the appearance, comprises housing 1, power input terminal 2, isolating switch 3, combined floodgate pilot lamp 4, separating brake pilot lamp 5, connection terminal 6, first group of analog switch 7 and second group of analog switch 8.
In whole circuit is wrapped in by housing 1, erecting of panel is on the surface of housing 1.Combined floodgate pilot lamp 4 in isolating switch 3, power input terminal 2 and analog switching circuit, separating brake pilot lamp 5, some pair of wire connection terminals 6 are arranged on described panel; Closing relay in analog switching circuit and separating brake relay are arranged on described enclosure interior.First group of analog switch 7 and second group of analog switch 8 comprise 1 combined floodgate pilot lamp, 4,1 separating brake pilot lamp 5 and 8 connection terminals 6 respectively.
The utility model can also be expanded on the basis of dual analog switchgear, parallel connection more groups of analog switching circuits on transmission line of electricity, carries out detecting or testing to access more equipment simultaneously.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a switch analogue means, comprising:
Transmission line of electricity and analog switching circuit; It is characterized in that,
Described analog switching circuit comprises closing relay, separating brake relay, combined floodgate pilot lamp, separating brake pilot lamp and some pair of wire connection terminals;
Transmission line of electricity is accessed after the coils connected in series of the first pair of wire connection terminals and closing relay;
Transmission line of electricity is accessed after the coils connected in series of the second pair of wire connection terminals and separating brake relay;
Combined floodgate pilot lamp accesses transmission line of electricity after connecting with first pair of normally opened contact of closing relay;
Separating brake pilot lamp accesses transmission line of electricity after connecting with first pair of normally closed contact of closing relay;
After second pair of normally opened contact of described closing relay is connected with a pair normally closed contact of described separating brake relay, in parallel with the two ends of the first pair of wire connection terminals;
All the other each pair of wire connection terminals are connected with all the other each pair of normally opened contacts of closing relay or all the other each pair of normally closed contacts respectively.
2. a kind of switch analogue means according to claim 1, is characterized in that, described analog switching circuit is more than two, and each group analog switching circuit is connected in parallel on transmission line of electricity simultaneously.
3. a kind of switch analogue means according to claim 1, it is characterized in that, described transmission line of electricity is formed after power input terminal is connected with isolating switch.
4. a kind of switch analogue means according to claim 3, is characterized in that, also comprises housing and is arranged on the panel of surface of shell.
5. a kind of switch analogue means according to claim 4, is characterized in that, the combined floodgate pilot lamp in described isolating switch, power input terminal and analog switching circuit, separating brake pilot lamp, some pair of wire connection terminals are arranged on described panel; Closing relay in described analog switching circuit and separating brake relay are arranged on described enclosure interior.
6. a kind of switch analogue means according to claim 1, it is characterized in that, in described analog switching circuit, have: the 3rd pair of branch road that normally opened contact is connected of one article of the 3rd pair of wire connection terminals and closing relay, and the branch road that one article of the 4th pair of wire connection terminals is connected with second pair of normally opened contact of closing relay.
7. a kind of switch analogue means according to claim 3, is characterized in that, described isolating switch is 5SJ62-C10 type isolating switch.
8. a kind of switch analogue means according to claim 1, is characterized in that, described closing relay and separating brake relay are HH54P type relay.
9. a kind of switch analogue means according to claim 1, is characterized in that, described combined floodgate pilot lamp and separating brake pilot lamp are ND16-22DS/4 type pilot lamp.
10. a kind of switch analogue means according to claim 1, is characterized in that, described combined floodgate pilot lamp is different from the color of separating brake pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303941.2U CN204613737U (en) | 2015-05-12 | 2015-05-12 | Switch Simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303941.2U CN204613737U (en) | 2015-05-12 | 2015-05-12 | Switch Simulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204613737U true CN204613737U (en) | 2015-09-02 |
Family
ID=53966278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520303941.2U Expired - Lifetime CN204613737U (en) | 2015-05-12 | 2015-05-12 | Switch Simulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204613737U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957310A (en) * | 2018-09-06 | 2018-12-07 | 江苏常熟发电有限公司 | A kind of portable plant electricity consumption fast switching device testing cassete |
| CN112908073A (en) * | 2021-01-20 | 2021-06-04 | 上海地铁维护保障有限公司 | Signal simulation test platform |
| CN113092943A (en) * | 2021-04-12 | 2021-07-09 | 广东电网有限责任公司阳江供电局 | Automatic change circuit simulation case |
-
2015
- 2015-05-12 CN CN201520303941.2U patent/CN204613737U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957310A (en) * | 2018-09-06 | 2018-12-07 | 江苏常熟发电有限公司 | A kind of portable plant electricity consumption fast switching device testing cassete |
| CN112908073A (en) * | 2021-01-20 | 2021-06-04 | 上海地铁维护保障有限公司 | Signal simulation test platform |
| CN113092943A (en) * | 2021-04-12 | 2021-07-09 | 广东电网有限责任公司阳江供电局 | Automatic change circuit simulation case |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150902 |