CN209373076U - A kind of prepared auto restart quick checking device - Google Patents
A kind of prepared auto restart quick checking device Download PDFInfo
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- CN209373076U CN209373076U CN201821788304.9U CN201821788304U CN209373076U CN 209373076 U CN209373076 U CN 209373076U CN 201821788304 U CN201821788304 U CN 201821788304U CN 209373076 U CN209373076 U CN 209373076U
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- power supply
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Abstract
The utility model discloses a kind of prepared auto restart quick checking devices, and including group screen tool box, the power supply being arranged in group screen tool box and three groups of detection circuits, power supply provides DC power supply for three groups of detection circuits；Detection circuit includes mimic-disconnecting switch, two switches, two indicator lights, the position of two switch control mimic-disconnecting switches, and shows present day analog breaker present positions by two indicator lights；Mimic-disconnecting switch accesses in backup auto-activating device.The utility model structure is simple, manufacturing cost is low, it is easy to operate, quickly prepared auto restart can be verified, the link for reducing time and test connection by using the utility model reduces verification operation step compared to existing verification mode, test period is shortened, is improved work efficiency.
Description
Technical field
The utility model relates to power domain, in particular to a kind of prepared auto restart quick checking device.
Background technique
Prepared auto restart is the abbreviation of automatic throw-in equipment of emergency power supply.In substation, the use of prepared auto restart is one important
Guarantee power supply reliability technical measures.The mode of connection of step-down substation mainly has internal bridge and unit connection, operation
Mode is usually that two inlet wire fanout operations or an operation one are spare.
When two inlet wire fanout operations: every inlet wire one section of bus of each band, two inlet wires dark standby each other.At this time if by
As soon as causing a section bus power loss in failure, backup auto-activating device be will start, the tripping incoming breaker, is confirmed the bus power loss and is somebody's turn to do
Incoming breaker is really after open position, and bus connection switch is closed in prepared auto restart movement, by another inlet wire by bus connection switch to the section
Bus continues to power.
When one operation one standby mode operation: an inlet wire passes through two sections of buses of bus connection switch band, another inlet wire conduct
Bright standby.At this time if backup auto-activating device just will start since failure causes two sections of bus equal power loss, tripping inlet wire open circuit
Device confirms two sections of equal power loss of bus and the incoming breaker really after open position, and another incoming switch is closed in prepared auto restart movement,
Two sections of buses are continued to power by another inlet wire.
Existing method of calibration is comparatively laborious, needs to retire from active service by worker to live backup auto-activating device, removes prepared auto restart
The secondary connection of jump and inlet wire and bus connection switch simulates the operating status of each breaker by being shorted contact, and first simulation is lost
Pressure, then DC voltage confirms whether backup auto-activating device issues trip signal over the ground by pile crown on measurement separating brake output clamping,
Then by being shorted contact mimic-disconnecting switch really in open position, pile crown DC voltage over the ground is finally measured on combined floodgate output clamping
Confirm whether backup auto-activating device issues order of closing a floodgate really, to verify whether backup auto-activating device correctly acts.But this is only tested
The correctness of its action logic is demonstrate,proved.And verification operation step is complicated.
Utility model content
For the above defect of the existing technology, the main purpose of the utility model is to overcome the deficiencies in the prior art
Place discloses a kind of prepared auto restart quick checking device, including group screen tool box, the power supply being arranged in the group screen tool box
With three groups of detection circuits, the power supply provides DC power supply for detection circuit described in three groups；
The detection circuit includes mimic-disconnecting switch, two switches, two indicator lights, mould described in two switch controls
The position of quasi- breaker, and present day analog breaker present position is shown by two indicator lights；The simulation open circuit
Device accesses in backup auto-activating device.
Further, the mimic-disconnecting switch is two-position relay.
Further, the coil resistance rated value of the two-position relay is greater than 4k Ω.
Further, the power supply is 110V direct-current power source supply device.
Further, the harmonic wave of the power supply be not more than 2%, DC output voltage 85%~110% voltage rating it
Between.
The utility model obtain the utility model has the advantages that
The utility model structure is simple, and manufacturing cost is low, easy to operate, can quickly verify to prepared auto restart, leads to
The link for reducing time and test connection using the utility model is crossed, compared to existing verification mode, reduces verification
Operating procedure shortens test period, improves work efficiency.Using two-position relay as mimic-disconnecting switch, drop significantly
The low cost of testing equipment.By three groups of detection circuits of setting, three switching off/on devices of prepared auto restart are detected respectively,
It only needs to verify when can be launched two kinds using the utility model.
Detailed description of the invention
Fig. 1 is a kind of working principle diagram of prepared auto restart quick checking device of the utility model；
Fig. 2 is a kind of circuit theory figure of prepared auto restart quick checking device of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to the accompanying drawing and implement
Example is described in further detail the utility model.It should be appreciated that specific embodiment described herein is only to explain this reality
With novel, it is not used to limit the utility model.
A kind of prepared auto restart quick checking device of the utility model, as shown in Figs. 1-2, including group screen tool box, setting exist
Power supply and three groups of detection circuits 1 in group screen tool box, power supply are that three groups of detection circuits 1 provide DC power supply；
Detection circuit 1 includes mimic-disconnecting switch, two switches, two indicator lights, two switch control mimic-disconnecting switches
Position, and present day analog breaker present position is shown by two indicator lights；Mimic-disconnecting switch accesses in backup auto-activating device.
As shown in Figure 1, passing through the state of switch control mimic-disconnecting switch, for example mimic-disconnecting switch is in "on" position at this time, and closes
Indicator light under gate position state lights, and backup auto-activating device at this time is normal equipment；Then prepared auto restart failure is simulated, and
After transmit a signal to mimic-disconnecting switch, mimic-disconnecting switch makes corresponding movement, controls corresponding indicator light and lights.
In one embodiment, power supply is 110V direct-current power source supply device.In addition, in order to keep power supply power supply more stable,
Keep check results more accurate, the harmonic wave of the power supply is not more than 2%, and DC output voltage is in 85%~110% voltage rating
Between.
In one embodiment, mimic-disconnecting switch is two-position relay.Two-position relay is at low cost, has saved verification and has set
Standby manufacturing cost.Preferably, the coil resistance rated value of two-position relay is greater than 4k Ω, and model can make DCS-11.
In one embodiment, while 110V DC power supply is used, and is greater than 4k Ω using coil resistance rated value
Two-position relay adjusted in this way by much smaller than the electric current of practical divide-shut brake coil of the electric current of two-position relay coil
Backup auto-activating device divide-shut brake contact would not ensure that each divide-shut brake outlet of backup auto-activating device by biggish action current when examination
Contact is not damaged.
When the utility model is used, by the calibration equipment access prepared auto restart equipment of the utility model, as shown in Fig. 2,
It include tri- groups of switching off/on devices of 1DL, 2DL, 3DL in prepared auto restart, three groups of detection circuits are respectively connected in 1DL, 2DL, 3DL, below
It is illustrated, when prepared auto restart works normally, is powered respectively by 1DL and 2DL, by the with two inlet wire fanout operations
One switches 11, third switch 13 and the 6th switch 16 control the first indicator light 21, third indicator light 23 and the 6th indicator light
26 light and three mimic-disconnecting switches are respectively at position shown in 1DL1,2DL1 and 3DL3, then simulate prepared auto restart 1DL and lose
Electricity pulls off the voltage of 1DL, observe six indicator light situations of change, if six indicator light variation sequences are the first instruction
Lamp 21 extinguishes, and the second indicator light 22 lights, and third indicator light 23 and the 4th indicator light 24 remain unchanged, then the 5th indicator light 25
It lights, the 6th indicator light 26 extinguishes.If indicator light is changed according to above-mentioned steps, illustrate prepared auto restart switching off/on device 1DL
It can be worked normally in power loss.Then other prepared auto restart malfunctions are simulated again according to above-mentioned steps.Its operating method is logical
The position of switch control two-position relay is crossed, and controls the light on and off of corresponding indicator light, then carries out fault simulation, observation is real
Whether border indicator light change procedure and theoretical indicator light change procedure are identical, if identical, illustrate that prepared auto restart is working properly, phase
Instead, then illustrate abnormal.
The above is only the preferred embodiments of the utility model, are not used to limit the scope of the utility model；If
The spirit and scope for not departing from the utility model, are modified or replaced equivalently the utility model, should all cover in this reality
In novel scope of protection of the claims.
Claims (5)
1. a kind of prepared auto restart quick checking device, which is characterized in that including group screen tool box, be arranged in the group screen tool box
Power supply and three groups of detection circuits, the power supply provide DC power supply for detection circuit described in three groups；
The detection circuit includes mimic-disconnecting switch, two switches, two indicator lights, and simulation described in two switch controls is disconnected
The position of road device, and present day analog breaker present position is shown by two indicator lights；The mimic-disconnecting switch connects
Enter in backup auto-activating device.
2. a kind of prepared auto restart quick checking device according to claim 1, which is characterized in that the mimic-disconnecting switch is double
Position relay.
3. a kind of prepared auto restart quick checking device according to claim 2, which is characterized in that the two-position relay
Coil resistance rated value is greater than 4k Ω.
4. a kind of prepared auto restart quick checking device according to claim 1, which is characterized in that the power supply is 110V direct current
Power supply device.
5. a kind of prepared auto restart quick checking device according to claim 1, which is characterized in that the harmonic wave of the power supply is little
In 2%, DC output voltage is between 85%~110% voltage rating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821788304.9U CN209373076U (en) | 2018-10-31 | 2018-10-31 | A kind of prepared auto restart quick checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821788304.9U CN209373076U (en) | 2018-10-31 | 2018-10-31 | A kind of prepared auto restart quick checking device |
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| Publication Number | Publication Date |
|---|---|
| CN209373076U true CN209373076U (en) | 2019-09-10 |
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| CN201821788304.9U Active CN209373076U (en) | 2018-10-31 | 2018-10-31 | A kind of prepared auto restart quick checking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116268A (en) * | 2018-10-31 | 2019-01-01 | 国网江苏省电力有限公司太仓市供电分公司 | A kind of prepared auto restart quick checking device |
-
2018
- 2018-10-31 CN CN201821788304.9U patent/CN209373076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109116268A (en) * | 2018-10-31 | 2019-01-01 | 国网江苏省电力有限公司太仓市供电分公司 | A kind of prepared auto restart quick checking device |
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