CN109991532A - Self-sustaining trip protection exports calibration equipment - Google Patents
Self-sustaining trip protection exports calibration equipment Download PDFInfo
- Publication number
- CN109991532A CN109991532A CN201910181210.8A CN201910181210A CN109991532A CN 109991532 A CN109991532 A CN 109991532A CN 201910181210 A CN201910181210 A CN 201910181210A CN 109991532 A CN109991532 A CN 109991532A
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- Prior art keywords
- relay
- sustaining
- self
- power
- cabinet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to trip protections in protection screen of transformer substation to export calibration technology field, it is a kind of self-sustaining trip protection outlet calibration equipment, it includes cabinet, the power switch being mounted on cabinet, the intracorporal power module of case and multiple tripping outlet test loops being connected in parallel are set, tripping outlet test loop includes relay, current-limiting resistance and light emitting diode, power module anode is electrically connected with power switch, power switch is electrically connected with relay coil, relay coil, the first normally opened contact of relay, the second normally opened contact of relay is sequentially electrically connected, second normally opened contact is connect with current-limiting resistance, current-limiting resistance is electrically connected with light emitting diode, protection exit node is provided between relay coil and power cathode.Structure of the invention is reasonable and compact, easy to use, exports test loop by multiple trippings in parallel, it can be achieved that testing multiple tripping outlets simultaneously, effectively shortens protection exit checking time, improve work efficiency.
Description
Technical field
The present invention relates to trip protections in protection screen of transformer substation to export calibration technology field, is a kind of self-sustaining trip protection
Export calibration equipment.
Background technique
Currently, carrying out protection exit verifying work in protection screen of transformer substation still needs to the school that one outlet connects one outlet
It tests.Assuming that carrying out bus differential protection outlet verification, it is assumed that bus differential protection outlet is 6 outlets, then each outlet verification will be passed through
Process above primary, 6 outlets will be surveyed by 6 secondary connections, 6 dosages, 6 protective device movements, No. 6 multimeters
Current potential is tried, the used time is longer；And Outlet time is gone out within the so short time using multimeter probably in 100ms every time
Mouth potential measurement, is hardly accessible for measurements current potential on multimeter, needs multimeter to carry out repeated measurement, wastes a large amount of of staff
Time.The protective calibration time is seriously affected using the verification mode of multimeter, is influenced to the time of client's power transmission, Bu Nengda
To the objective of enterprise's good service.
Summary of the invention
The present invention provides a kind of self-sustaining trip protections to export calibration equipment, overcomes the defects of the prior art,
It can effectively solve it is existing using manually being verified to protection exit using multimeter, there are time-consuming and laborious, construction efficiency compared with
Low problem.
The technical scheme is that realized by following measures: a kind of self-sustaining trip protection outlet verification dress
It sets, including cabinet, the power switch being mounted on cabinet, the intracorporal power module of case and multiple trippings being connected in parallel is set
Test loop is exported, tripping outlet test loop includes relay, current-limiting resistance and light emitting diode, the power module
Anode is electrically connected with power switch, and power switch is electrically connected with relay coil, relay coil and the normally opened touching of relay first
Point one end electrical connection, the first normally opened contact of relay other end, the second normally opened contact of relay one end with power module cathode
Connection, relay the second normally opened contact other end are connect with current-limiting resistance one end, the current-limiting resistance other end and light emitting diode one
End electrical connection, the light emitting diode other end are electrically connected with relay coil, connect between relay coil and power module cathode
It is connected to protection exit node.
Here is the further optimization and/or improvements to invention technology described above scheme:
Be also equipped with reset switch on above-mentioned cabinet, the reset switch be connected in series in power switch and relay coil it
Between.
Mounting hole is offered on before above-mentioned cabinet, light emitting diode is fixedly mounted on before cabinet by mounting hole
On.
Above-mentioned cabinet is in open-topped square or rectangular parallelepiped structure, and the top open part of cabinet, which is fixedly installed with, to be opened
The chamber door of conjunction.
Above-mentioned power switch and reset switch are the push switch being fixed on chamber door.
Above-mentioned power module includes power pack and the rechargeable lithium battery that is mounted in power pack.
Structure of the invention is reasonable and compact, easy to use, exports test loop by multiple trippings in parallel, it can be achieved that same
When test multiple trippings outlet, effectively shorten protection exit checking time, improve work efficiency, when shortening equipment and having a power failure
Between, the working strength of staff is saved, while ensure that the electric power feeding time of client, improves the service quality of enterprise.
Detailed description of the invention
Attached drawing 1 is the circuit diagram of one tripping outlet test loop of present invention connection.
Attached drawing 2 is the schematic perspective view of cabinet of the invention.
It is power module that coding in attached drawing, which is respectively as follows: U, and KM is relay coil, KM1For the normally opened touching of relay first
Point, KM2For the second normally opened contact of relay, S1For power switch, S2For reset switch, R is current-limiting resistance, and LED is light-emitting diodes
Pipe, K1 are protection exit node, and 1 is cabinet, and 2 be mounting hole, and 3 be chamber door.
Specific embodiment
The present invention is not limited by the following examples, can determine according to the technique and scheme of the present invention with actual conditions specific
Embodiment.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to Figure of description 2
Butut mode be described, such as: front, rear, top, and bottom, left and right positional relationship be the Butut according to Figure of description
Direction determines.
Below with reference to examples and drawings, the invention will be further described:
As shown in attached drawing 1,2, self-sustaining trip protection outlet calibration equipment includes that cabinet 1, the power supply being mounted on cabinet 1 are opened
Close S1, the power module U that is arranged in cabinet 1 and multiple tripping outlet test loops being connected in parallel, tripping outlet survey
Examination circuit includes relay, current-limiting resistance R and Light-emitting diode LED, the power module U anode and power switch S1It is electrically connected
It connects, power switch S1It is electrically connected with relay coil KM, relay coil KM and the first normally opened contact of relay KM1One end is electrically connected
It connects, the first normally opened contact of relay KM1The other end, the second normally opened contact of relay KM2One end is connect with power module U cathode,
The second normally opened contact of relay KM2The other end is connect with the one end current-limiting resistance R, the current-limiting resistance R other end and Light-emitting diode LED
One end electrical connection, the Light-emitting diode LED other end is electrically connected with relay coil KM, in relay coil KM and power module U
Protection exit node K is connected between cathode1。
The present invention as trip protection export calibration equipment, in actual use, the present invention be connected to protective relaying device and
On route between breaker, for completing to carry out protection exit verifying work in protection screen of transformer substation.The self-insurance of relay
Holding circuit includes power module U, power switch S1, relay coil KM, the first normally opened contact of relay KM1, the self-insurance of relay
It holds circuit and ensures that power module U normally provides working power to relay.
The present invention connects the course of work of a tripping outlet test loop are as follows: the present invention is accessed on protective relaying device
Protection exit node K1, when protective relaying device, which acts, connects tripping outlet, protection exit node K of the invention1Closure,
Press power switch S1, then relay coil KM is obtained electric, the first normally opened contact of relay KM1Closure, the self-holding circuit of relay
Conducting；Relay holding movement, makes the second normally opened contact of relay KM2Closure is powered on, at this point, Light-emitting diode LED holding point
It is bright, according to Light-emitting diode LED light or OFF state, staff judge protective relaying device tripping outlet work
Whether normal make state, i.e., Light-emitting diode LED is lighted, then the tripping outlet of the protective relaying device is normal；Conversely, then not just
Often.
According to the needs of real work, the present invention realizes the verifying work of multiple tripping outlet test loops being connected in parallel
Process is same as described above, and this will not be repeated here.
Structure of the invention is reasonable and compact, easy to use, exports test loop by multiple trippings in parallel, it can be achieved that same
When test multiple trippings outlet, effectively shorten protection exit checking time, improve work efficiency, when shortening equipment and having a power failure
Between, the working strength of staff is saved, while ensure that the electric power feeding time of client, improves the service quality of enterprise.
Above-mentioned self-sustaining trip protection outlet calibration equipment can be made further optimization and/or improvements according to actual needs:
As shown in attached drawing 1,2, tripping outlet test loop further includes reset switch S2, the reset switch S2It is connected in series in electricity
Source switch S1Between relay coil KM.Cause and protection exit node K of the invention1The signal of the protective relaying device of connection
Duration is extremely short, and according to actual needs, can disconnect power module U by reset switch S2 at any time makes relay and light-emitting diodes
2 power loss of pipe, relay involution, the first normally opened contact of relay KM1With the second normally opened contact of relay KM2It disconnects, light emitting diode
LED extinguishes.
As shown in attached drawing 1,2, before the cabinet 1 on offer mounting hole 2, Light-emitting diode LED is solid by mounting hole 2
On Dingan County is mounted in front of cabinet 1.
As shown in attached drawing 1,2, cabinet 1 is in open-topped square or rectangular parallelepiped structure, and the top open part of cabinet 1 is solid
Dingan County is equipped with openable and closable chamber door 3.
As shown in attached drawing 1,2, power switch S1With reset switch S2For the push switch being fixed on chamber door 3.
As needed, power module U includes power pack and the rechargeable lithium battery that is mounted in power pack.
Embodiment 2: as shown in attached drawing 2, table 1, table 2, a kind of self-sustaining trip protection being provided with 8 tripping verification outlets
Export calibration equipment, 8 tripping being connected in parallel outlet test loops be equipped with inside cabinet 1, before the cabinet 1 on be arranged
There are 8 mounting holes 2, passes through mounting hole 3 and 8 Light-emitting diode LED are fixedly mounted respectively, fixed power source is opened respectively on chamber door 3
Close S1With reset switch S2。
When actual test, it is utilized respectively between the present invention verifies and pass progress 60 female differences of existing protection exit verification and is separated out
Mouth is tested, is compared, and traditional protection exit verification used time is as shown in table 1；The verification used time of the invention is as shown in table 2.
As can be seen from Table 1 and Table 2, the protection exit verification shortest time of female difference interval traditional approach is 86 points
Clock was fallen below 44 minutes using the verification used time after the present invention from 86 minutes, and reducing the used time is 42 minutes, and teams and groups verify class within 1 year
It is similar to the protection exits verification such as female poor, low-frequency low-voltage load shedding, route regular inspection probably to carry out more than 90 times, the time can be saved are as follows: 90*
44=3960min.Greatly shorten protection exit checking time using of the invention, to improve the efficiency of protection exit verification.
The above technical characteristic constitutes highly preferred embodiment of the present invention, with stronger adaptability and best implementation effect
Fruit can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (8)
1. a kind of self-sustaining trip protection exports calibration equipment, it is characterised in that opened including cabinet, the power supply being mounted on cabinet
It closes, the intracorporal power module of case and multiple tripping outlet test loops being connected in parallel is set, the tripping outlet is tested back
Road includes relay, current-limiting resistance and light emitting diode, and the power module anode is electrically connected with power switch, power switch with
Relay coil electrical connection, relay coil are electrically connected with the first normally opened contact of relay one end, the first normally opened contact of relay
The other end, the second normally opened contact of relay one end are connect with power module cathode, relay the second normally opened contact other end with
The connection of current-limiting resistance one end, the current-limiting resistance other end are electrically connected with light emitting diode one end, the light emitting diode other end and relay
The electrical connection of device coil, is connected with protection exit node between relay coil and power module cathode.
2. self-sustaining trip protection according to claim 1 exports calibration equipment, it is characterised in that be also equipped on cabinet
Reset switch, the reset switch are connected in series between power switch and relay coil.
3. self-sustaining trip protection according to claim 2 exports calibration equipment, it is characterised in that opened on before cabinet
Equipped with mounting hole, light emitting diode is fixedly mounted on before cabinet by mounting hole.
4. self-sustaining trip protection according to claim 1 or 2 or 3 exports calibration equipment, it is characterised in that cabinet is in top
The square or rectangular parallelepiped structure, the top open part of cabinet of portion's opening are fixedly installed with openable and closable chamber door.
5. self-sustaining trip protection according to claim 4 exports calibration equipment, it is characterised in that power switch and reset
Switch is the push switch being fixed on chamber door.
6. self-sustaining trip protection according to claim 1 or 2 or 3 exports calibration equipment, it is characterised in that power module
Including power pack and the rechargeable lithium battery being mounted in power pack.
7. self-sustaining trip protection according to claim 4 exports calibration equipment, it is characterised in that power module includes electricity
Source capsule and the rechargeable lithium battery being mounted in power pack.
8. self-sustaining trip protection according to claim 5 exports calibration equipment, it is characterised in that power module includes electricity
Source capsule and the rechargeable lithium battery being mounted in power pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181210.8A CN109991532A (en) | 2019-03-11 | 2019-03-11 | Self-sustaining trip protection exports calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181210.8A CN109991532A (en) | 2019-03-11 | 2019-03-11 | Self-sustaining trip protection exports calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109991532A true CN109991532A (en) | 2019-07-09 |
Family
ID=67129726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910181210.8A Pending CN109991532A (en) | 2019-03-11 | 2019-03-11 | Self-sustaining trip protection exports calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109991532A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202903931U (en) * | 2012-11-14 | 2013-04-24 | 冀北电力有限公司唐山供电公司 | Relay protection tripping node calibration apparatus |
| CN204287350U (en) * | 2014-12-08 | 2015-04-22 | 广东电网有限责任公司湛江供电局 | Protective relaying device tripping operation outlet proving installation |
| CN209894929U (en) * | 2019-03-11 | 2020-01-03 | 国网新疆电力有限公司昌吉供电公司 | Self-holding protection tripping outlet checking device |
-
2019
- 2019-03-11 CN CN201910181210.8A patent/CN109991532A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202903931U (en) * | 2012-11-14 | 2013-04-24 | 冀北电力有限公司唐山供电公司 | Relay protection tripping node calibration apparatus |
| CN204287350U (en) * | 2014-12-08 | 2015-04-22 | 广东电网有限责任公司湛江供电局 | Protective relaying device tripping operation outlet proving installation |
| CN209894929U (en) * | 2019-03-11 | 2020-01-03 | 国网新疆电力有限公司昌吉供电公司 | Self-holding protection tripping outlet checking device |
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