CN202903931U - Relay protection tripping node calibration apparatus - Google Patents
Relay protection tripping node calibration apparatus Download PDFInfo
- Publication number
- CN202903931U CN202903931U CN 201220627837 CN201220627837U CN202903931U CN 202903931 U CN202903931 U CN 202903931U CN 201220627837 CN201220627837 CN 201220627837 CN 201220627837 U CN201220627837 U CN 201220627837U CN 202903931 U CN202903931 U CN 202903931U
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- relay
- open switch
- verification unit
- normally
- normal open
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Abstract
The utility model discloses a relay protection tripping node calibration apparatus. The apparatus comprises an anode terminal and a cathode terminal. A normally-closed resetting button and a calibration unit are connected in series between the anode terminal and the cathode terminal. The calibration unit comprises a node test terminal, a motion indicating lamp, a relay solenoid coil, a first normally-open switch of the relay and a second normally-open switch of the relay, wherein the first normally-open switch of the relay and the second normally-open switch are controlled by the relay solenoid coil. The first normally-open switch of the relay and the relay solenoid coil are successively connected in series between the anode terminal and the cathode terminal. The node test terminal is connected between the first normally-open switch of the relay and the relay solenoid coil. The second normally-open switch of the relay and the motion indicating lamp are connected in series between the anode terminal and the cathode terminal in a separated way. The apparatus can verify the plurality of tripping nodes at a time. A checked signal is reliable for a long time. Working intensity is reduced and working accuracy is increased.
Description
Technical field
The utility model relates to a kind of electrical measuring device, in particular to a kind of relay protection tripping operation node calibration equipment.
Background technology
Relay protection is that the fault that occurs in the electric system or abnormal conditions are detected; thereby the alerting signal of sending; or directly with a kind of important protecting electrical power system measure of faulty component isolation, excision, developed into the relay protection stage take computing machine and correlation technique as the basis now.When a certain circuit breaks down, fault-signal is by computer acquisition and carry out logic analysis, judges, and sends pulse signal through the tripping operation node of relay protection device to tripgear simultaneously and trips.For the tripping operation node that guarantees relay equipment can accurately send pulse signal, regularly patrol and examine verification to it.Traditional method of calibration is to add current-limiting resistance and tripping operation node composition closed-loop path with the shelves of direct voltage of multimeter or with pilot lamp, the one by one verification of a node of a node, when multimeter sends action or pilot lamp instant igniting, illustrate that the tripping operation node is working properly, otherwise, illustrate that the tripping operation node does not send pulse signal, then need further seek reason, fix a breakdown.Because traditional method of calibration need to operate each node that trips, loaded down with trivial details time-consuming, increased staff's labour intensity, and because the signal that multimeter or pilot lamp send is sometimes too of short duration, so that the staff can't make accurate judgment sometimes, thereby affect the accuracy of work.
The utility model content
The purpose of this utility model provides a kind of relay protection tripping operation node calibration equipment, and this device can a plurality of tripping operation nodes of a verification, check that signal is reliable for a long time, have reduced working strength, have improved the work accuracy.
For achieving the above object, the utility model is taked following technical scheme:
A kind of relay protection tripping operation node calibration equipment; comprise positive terminal and negative terminals; between positive terminal and negative terminals, be in series with the normally closed button of involution and verification unit; described verification unit comprises the node test connection terminal; action indicator; electromagnetic coil relay and relay the first normal open switch and relay the second normal open switch that controlled by this electromagnetic coil relay; relay the first normal open switch and electromagnetic coil relay are connected between positive terminal and negative terminals successively; be connected with the node test connection terminal between relay the first normal open switch and electromagnetic coil relay, relay the second normal open switch and action indicator are connected on separately between positive terminal and negative terminals.
A plurality of verification unit are in parallel and form the verification unit group, and the number of verification unit is 2～24 in the described verification unit group, and preferred 12, the normally closed button of involution and verification unit group are in series.
Can find out from above-mentioned technical scheme, after the tripping operation node sends pulse signal, electromagnetic coil relay attracting electric relay the first normal open switch and relay the second normal open switch, electromagnetic coil relay is switched on for a long time, and action indicator is lighted for a long time, inform that the testing staff is correctly to send pulse, press the normally closed button of involution, the electromagnetic coil relay outage, relay the first normal open switch and the second normal open switch disconnect, pilot lamp extinguishes, and device involution original state is used in order to detecting next time.Owing to being parallel with a plurality of verification unit, once can detect a plurality of tripping operation nodes, avoid the duplication of labour, improved work efficiency.
Description of drawings
Fig. 1 is the utility model schematic appearance;
Fig. 2 is the utility model circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1 and Figure 2, be equipped with positive terminal 1 and negative terminals 2 at crust of the device 3, be used for connecting external power source.The normally closed button 4 of involution is connected between positive terminal 1 and negative terminals 2, and it is closure state under normal circumstances, and circuit is disconnected.Node test connection terminal 5, action indicator 51, electromagnetic coil relay 6 and relay the first normal open switch 61 and relay the second normal open switch 62 composition verification unit that are subjected to electromagnetic coil relay 6 adhesives control, the first normal open switch 61 and electromagnetic coil relay 6 are connected between positive terminal 1 and negative terminals 2 successively, between the first normal open switch 61 and electromagnetic coil relay 6, be connected with node test connection terminal 5, carry out verification for being connected with the tripping operation node.Action indicator 51 and relay the second normal open switch 62 are connected on separately between positive terminal 1 and negative terminals 2.During work, after the tripping operation node sends pulse signal, electromagnetic coil relay 6 is subjected to electric attracting electric relay the first normal open switch 61 and relay the second normal open switch 62, after relay the first normal open switch 61 is connected, electromagnetic coil relay 6 can be switched on for a long time, relay the second normal open switch 62 also can be for a long time by adhesive, and safety action pilot lamp 51 is lighted for a long time, sends smoothly pulse signal in order to notify staff's node that trips.After pressing the normally closed button of involution, electromagnetic coil relay 6 dead electricity, the disconnection that resets of relay the first normal open switch 61 and relay the second normal open switch 62, action indicator 51 extinguishes, and verification unit restores to the original state, and prepares next time verifying work.
Node test connection terminal 8, action indicator 81, electromagnetic coil relay 7 and relay the first normal open switch 71, the another verification unit of relay the second normal open switch 72 compositions that are subjected to electromagnetic coil relay 7 adhesives control, and be in parallel with aforementioned verification unit as shown in Figure 2, by that analogy, some verification unit form the verification unit group, and the normally closed button 4 of involution is connected between positive terminal 1 and negative terminals 2.In the verification unit group, according to actual needs, the number of verification unit is generally 2～24, also can be more, consider distance and wiring length with the node that trips, and work efficiency, optimal selection forms the verification unit group by 12 verification unit.Among Fig. 1, node connection terminal and corresponding action indicator draw four to be illustrated, can expand by aforementioned content.Verification unit draws two and illustrates among Fig. 2, can expand by same principle.
Claims (3)
1. relay protection tripping operation node calibration equipment; comprise positive terminal and negative terminals; it is characterized in that; between positive terminal and negative terminals, be in series with the normally closed button of involution and verification unit; described verification unit comprises the node test connection terminal; action indicator; electromagnetic coil relay and relay the first normal open switch and relay the second normal open switch that controlled by this electromagnetic coil relay; relay the first normal open switch and electromagnetic coil relay are connected between positive terminal and negative terminals successively; be connected with the node test connection terminal between relay the first normal open switch and electromagnetic coil relay, relay the second normal open switch and action indicator are connected on separately between positive terminal and negative terminals.
2. relay protection as claimed in claim 1 tripping operation node calibration equipment; it is characterized in that; a plurality of verification unit are in parallel and form the verification unit group, and the number of verification unit is 2～24 in the described verification unit group, and the normally closed button of described involution and verification unit group are in series.
3. relay protection tripping operation node calibration equipment as claimed in claim 2 is characterized in that, the number of verification unit is 12 in the described verification unit group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627837 CN202903931U (en) | 2012-11-14 | 2012-11-14 | Relay protection tripping node calibration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220627837 CN202903931U (en) | 2012-11-14 | 2012-11-14 | Relay protection tripping node calibration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903931U true CN202903931U (en) | 2013-04-24 |
Family
ID=48124587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220627837 Expired - Fee Related CN202903931U (en) | 2012-11-14 | 2012-11-14 | Relay protection tripping node calibration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792451A (en) * | 2014-01-29 | 2014-05-14 | 中国能源建设集团广东火电工程总公司 | Detection circuit and instrument for relay protective device protective outlet loop |
| CN109991532A (en) * | 2019-03-11 | 2019-07-09 | 国网新疆电力有限公司昌吉供电公司 | Self-sustaining trip protection exports calibration equipment |
-
2012
- 2012-11-14 CN CN 201220627837 patent/CN202903931U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792451A (en) * | 2014-01-29 | 2014-05-14 | 中国能源建设集团广东火电工程总公司 | Detection circuit and instrument for relay protective device protective outlet loop |
| CN103792451B (en) * | 2014-01-29 | 2016-09-28 | 中国能源建设集团广东火电工程总公司 | A kind of relay protection protection exit loop detection circuit and instrument |
| CN109991532A (en) * | 2019-03-11 | 2019-07-09 | 国网新疆电力有限公司昌吉供电公司 | Self-sustaining trip protection exports calibration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20181114 |