CN105703476B - A kind of automatic throw-in equipment of emergency power supply - Google Patents
A kind of automatic throw-in equipment of emergency power supply Download PDFInfo
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- CN105703476B CN105703476B CN201610215418.3A CN201610215418A CN105703476B CN 105703476 B CN105703476 B CN 105703476B CN 201610215418 A CN201610215418 A CN 201610215418A CN 105703476 B CN105703476 B CN 105703476B
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- 230000007246 mechanism Effects 0.000 claims description 40
- 230000007257 malfunction Effects 0.000 abstract description 8
- 230000009977 dual effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- 208000032368 Device malfunction Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention discloses a kind of automatic throw-in equipment of emergency power supplies, are related to electric power network technical field；By introducing the input quantity of a pair of of reflection 1DL circuit breaker position, automatic throw-in equipment misaction is solved；By introducing second group of voltage, automatic throw-in equipment nonaction is solved；Structure is simple, does not increase a set of standby power throw-in device additionally, and the function of dual is realized on a set of automatic throw-in equipment of emergency power supply, effectively solves the problems, such as the malfunction and misaction of standby power throw-in device, time saving and energy saving, improves working efficiency.
Description
Technical field
The present invention relates to electric power network alternate power technologies fields.
Background technique
Use single channel power supply power supply relatively broadly in power grid, when power supply failure is unable to normal power supply, automatically
The mode for switching to the power supply of another way backup power source is known as automatic throw-in equipment of emergency power supply.
The problem of automatic closing investment device is primarily present at this stage is: automatic bus judges the non-tripping of breaker,
Therefore standby power throw-in device leads to tripping；If voltage secondary circuit causes voltage transformer secondary to lose voltage extremely,
Then automatic throw-in equipment of emergency power supply judges inlet wire decompression, and then automatic throw-in equipment of emergency power supply is caused to malfunction.
The tripping and malfunction of automatic throw-in equipment of emergency power supply will affect the normal use of device, influence working efficiency,
Wasting manpower and material resources.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide a kind of backup power source to throw automatically
Enter device, structure is simple, does not increase a set of standby power throw-in device additionally, real on a set of automatic throw-in equipment of emergency power supply
The function of existing dual effectively solves the problems, such as the malfunction and misaction of standby power throw-in device, time saving and energy saving, improves work effect
Rate.
In order to solve the above technical problems, the technical solution used in the present invention is: first has 5 input terminals and one with door
Output end, input terminal are respectively signal, the second breaker position that the first circuit breaker position signal 1DL-TWL is connect with the first NOT gate
Confidence 2DL-TWL, the signal of third circuit breaker position signal 3DL-TWL and the second NOT gate, No. 1 bus voltage signal U1With 2
Number bus voltage signal U2, output end is connected with the first time-delay mechanism；Second has 3 input terminals for the electric current I of No. 1 inlet wire with doorI
Signal, voltage UISignal and voltage UIISignal, second connect third and door input terminal with gate output terminal；Third and door have 2 it is defeated
Enter end one output end, input terminal be the first deferred mount output signal and second with door output signal, output end connection second
Time-delay mechanism input terminal；The output signal of second time-delay mechanism is separately connected third broadening time-delay mechanism input terminal and the 4th and door
Input terminal；Third broadening time-delay mechanism output end is separately connected breaking coil 1TJ and tripping driving signal 1xj；4th has 2 with door
A input terminal is the output signal and first or door output signal of the second time-delay mechanism, and the 4th, which connect the 4th with gate output terminal, broadens
Time-delay mechanism；4th broadening time-delay mechanism output end is separately connected closing coil 2HJ and closing coil driving signal 2xj；First
Or the input terminal of door is the signal of two the first positions breaker 1DL of reflection, respectively the first circuit breaker position signal 1DL-TWL
The first circuit breaker position signal 1DL-HWL different with from the first circuit breaker position signal 1DL-TWL；Second or door input terminal
For block signal BS, second or gate output terminal connect the first time-delay mechanism.
Preferably, the first time-delay mechanism delay time was 10-20 seconds.
Preferably, voltage UIISignal is second group of voltage circle voltage of No. 1 primary voltage mutual inductor.
Preferably, voltage UIISignal is in Bulk Supply Substation, the secondary voltage of low-pressure side.
Preferably, the first circuit breaker position signal 1DL-HWL is and in the first circuit breaker position signal 1DL-TWL first
The opposite contact in the contact breaker 1DL.
Preferably, the first circuit breaker position signal 1DL-HWL is breaker operation cabinet and the first circuit breaker position signal
One group of different tripping position relay contact in 1DL-TWL.
Preferably, the first circuit breaker position signal 1DL-HWL is breaker operation cabinet and the first circuit breaker position signal
One group of different closing position relay contact in 1DL-TWL.
Preferably, the third broadening time-delay mechanism time is set as 200 milliseconds.
Preferably, the 4th broadening time-delay mechanism time was set as 200 milliseconds.
The beneficial effects of adopting the technical scheme are that the configuration of the present invention is simple, does not increase additionally a set of standby
Device is put into power supply, by increasing by one group of voltage and increasing by one group of reflection the first breaker 1DL position quantity signal, a set of
Realize that the function of dual, the malfunction and misaction for effectively solving standby power throw-in device are asked on automatic throw-in equipment of emergency power supply
Topic, it is time saving and energy saving, improve working efficiency.
Detailed description of the invention
Fig. 1 is automatic throw-in equipment of emergency power supply schematic diagram；
Fig. 2 is the logic diagram of the automatic throw-in equipment of emergency power supply of the prior art；
Fig. 3 is the logic diagram of one embodiment of the invention.
In figure: 1, first and door；2, second and door；3, third and door；4, the 4th and door；5, the first NOT gate；6, second is non-
Door；7, the first time-delay mechanism；8, the second time-delay mechanism；9, third broadens time-delay mechanism；10, the 4th broadening time-delay mechanism；11,
One or door；12, second or door.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, be a kind of automatic throw-in equipment of emergency power supply schematic diagram, automatic throw-in equipment of emergency power supply 1 into
Line is connected with the first breaker 1DL, and No. 2 inlet wires are connected with the second breaker 2DL, the first breaker 1DL and the second breaker 2DL
Between by third breaker 3DL be connected, voltage transformer UX1It is connected with the first breaker 1DL input terminal, voltage transformer UX2
Be connected with the second breaker 2DL input terminal, between the first breaker 1DL and third breaker 3DL be equipped with No. 1 transformer, second
No. 2 transformers are equipped between breaker 2DL and third breaker 3DL.
Under normal mode, No. 1 inlet wire operation, No. 2 inlet wires are spare, i.e., 1DL, 3DL are in coincidence, and 2DL is in quartile.Work as active line
After the inlet wire power loss of road 1 or 1DL switch jump, automatic throw-in equipment first ensures that working line disconnects, and then No. 2 inlet wires are standby
It should be able to be automatically engaged with power supply, and only allow to act primary.
As shown in Fig. 2, being the present invention without the standby power throw-in device logic diagram before improving, analyze original spare
Power supply puts into device, and No. 1 inlet wire operation, No. 2 inlet wires are spare, and input element introduces 1DL, 2DL circuit breaker position signal, introduce 1
Number inlet wire current signal has tripping 1DL circuit breaker trip coil in output element respectively and closes the closing line of 2DL breaker
Circle.
When work, judge whether power loss or 1DL are opened No. 1 inlet wire of working line with No. 1 bus-bar potential transformer secondary voltage
Close whether jump.After No. 1 busbar voltage power loss, and No. 1 inlet wire secondary current is then judged as and loses lower than there is stream locking value
Power supply.Automatic switching device of standby power supply issues a tripping and enables tripping 1DL switch at this time, touches when acknowledging receipt of 1DL circuit breaker position
After point off game clock shows that switch has disconnected, automatic switching device of standby power supply closes 2DL through the 4th time-delay mechanism of too short delay and switchs.It is spare
The success of power switchover device action, backup power source are successfully put into.
Automatic switching device of standby power supply introduces No. 1 inlet wire current, is because automatic switching device of standby power supply passes through No. 1 busbar voltage
The secondary voltage of mutual inductor judge power supply whether power loss.And voltage transformer secondary voltage is accessed often over low-voltage air switch
Device, if air switch wrong diagnosis is opened or the secondary exception of voltage circuit is likely to cause standby power throw-in device malfunction.
And when No. 1 inlet wire operates normally, No. 1 inlet wire current exists, if inlet wire secondary current exists, secondary voltage disappears, standby
With power supply investment device locking, it is believed that TV Secondary Wire Abnormity, and then standby power throw-in device is failure to actuate.
By analysis, original backup power source is like there are malfunctions and the reason of tripping to be for device: tripping reason, when No. 1
Inlet wire power loss, standby power throw-in device issue jump enable, tripping 1DL switch after because the poor contact of switch conversion contact or
Converting not in place causes the first breaker 1DL tripping position relay contact to be disconnected.Therefore automatic bus judges that 1DL is not jumped
It opens, therefore be latched standby power throw-in device to lead to tripping.Reason of false action, in the case where light load, 1DL real work electric current
There is stream latching current value less than automatic throw-in equipment of emergency power supply adjusting, at this time if voltage secondary circuit leads to voltage extremely
Mutual inductor is secondary to lose voltage, then automatic throw-in equipment of emergency power supply judges inlet wire decompression and then leads to alternate power autocast
Error action of device is made.
As shown in figure 3, being run for a kind of automatic throw-in equipment of emergency power supply logic diagram of the present invention with No. 1 inlet wire, No. 2
For inlet wire is spare, first has 5 input terminals and an output end with door 1, and input terminal is respectively the first circuit breaker position signal
Signal that 1DL-TWL is connect with the first NOT gate 5, the second circuit breaker position signal 2DL-TWL, third circuit breaker position signal 3DL-
The signal of TWL and the second NOT gate 6, No. 1 bus voltage signal U1With No. 2 bus voltage signal U2, output end and the first time-delay mechanism
7 are connected；Second has 3 input terminals for the electric current I of No. 1 inlet wire with door 2ISignal, voltage UISignal and voltage UIISignal, second with
Door 2 output ends connection third and 3 input terminal of door, the signal of two groups of voltages be with relationship, i.e., only two groups of voltages lose
After going and after being had stream latch open, standby power throw-in device, which just judges, is losing power supply and then standby power throw-in device just
Positive motion is made, because the probability that two groups of Secondary Circuit of Potential Transformer is abnormal simultaneously is lower, and there remains stream locking
Function can effectively solve the problems, such as malfunction of standby power throw-in device under the conditions of light load；Third and door 3 have 2 inputs
Hold an output end, input terminal be 7 output signal of the first deferred mount and second with 2 output signal of door, output end connection second
Time-delay mechanism input terminal 8；The output signal of second time-delay mechanism 8 is separately connected third broadening 9 input terminal of time-delay mechanism and the 4th
With 4 input terminal of door；Third broadening 9 output end of time-delay mechanism is separately connected breaking coil 1TJ and tripping driving signal 1xj；4th
Have an output signal and first or 11 output signal of door that 2 input terminals are the second time-delay mechanism 8 with door 4, the 4th with 4 output end of door
Connect the 4th broadening time-delay mechanism 10；4th broadening 10 output end of time-delay mechanism is separately connected closing coil 2HJ and closing coil
Driving signal 2xj；First or door 11 input terminal be two the first positions breaker 1DL of reflection signals, respectively first is disconnected
The road device position signal 1DL-TWL and first circuit breaker position signal 1DL- different from the first circuit breaker position signal 1DL-TWL
The signal input of HWL, two groups of reflection the first breaker 1DL trip positions be or relationship, as long as both having there is one group of quantitative response first
Breaker 1DL can tripping, standby power throw-in device can act correctly；Second or door 12 input terminal be block signal
BS, second or 12 output end of door connect the first time-delay mechanism 7.
7 delay time of first time-delay mechanism be 10-20 seconds, the first time-delay mechanism 7 be in order to allow automatic throw-in equipment sometimes
Between charge, make have the condition carried out downwards.
Voltage UIISignal can be second group of voltage circle voltage of No. 1 primary voltage mutual inductor.
Voltage UIISignal can also in Bulk Supply Substation, the secondary voltage of low-pressure side, after substation high-pressure side loses voltage,
Wherein, low-pressure side voltage can certainly will be reduced also.In, the reduction of low-pressure side voltage can also verify power supply and lose voltage.
First circuit breaker position signal 1DL-HWL be and the first breaker 1DL in the first circuit breaker position signal 1DL-TWL
The opposite contact in contact.
First circuit breaker position signal 1DL-HWL is in breaker operation cabinet and the first circuit breaker position signal 1DL-TWL
One group of different tripping position relay contacts.
First circuit breaker position signal 1DL-HWL is in breaker operation cabinet and the first circuit breaker position signal 1DL-TWL
One group of different closing position relay contacts.
The third broadening time-delay mechanism time is set as 200 milliseconds.
4th broadening time-delay mechanism time was set as 200 milliseconds.
The course of work:
No. 1 inlet wire power loss, inlet wire current I1, voltage UIWith voltage UIILess than locking value, voltage UIWith voltage UIIEqual power loss
When, standby power throw-in device starting, the tripping that the first breaker of tripping is issued after delay enables.When the first circuit breaker position
Signal 1DL-TWL and the first circuit breaker position signal 1DL-HWL has a first breaker 1DL tripping of reflection, can be driven
The closing coil of second breaker, so that the second breaker closing.
In actual operation, No. 1 inlet wire and No. 2 inlet wire mutual backup, so can also be run with No. 2 inlet wires, No. 1 inlet wire is standby
With working principle is run with No. 1 inlet wire, and No. 2 spare principles of inlet wire are identical.
After adopting the above technical scheme, not increasing a set of standby power throw-in device additionally, by increasing by one group of voltage
With one group of reflection the first breaker 1DL position quantity signal of increase, dual is realized on a set of automatic throw-in equipment of emergency power supply
Function, effectively solves the problems, such as the malfunction and misaction of standby power throw-in device, time saving and energy saving, raising working efficiency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of automatic throw-in equipment of emergency power supply, it is characterised in that: first has 5 input terminals and an output end with door (1),
Input terminal is respectively signal, the second circuit breaker position letter that the first circuit breaker position signal 1DL-TWL is connect with the first NOT gate (5)
Number 2DL-TWL, the signal of third circuit breaker position signal 3DL-TWL and the second NOT gate (6), No. 1 bus voltage signal U1With No. 2
Bus voltage signal U2, output end is connected with the first time-delay mechanism (7)；Second to have 3 input terminals with door (2) be No. 1 inlet wire
Electric current IISignal, voltage UISignal and voltage UIISignal, second connect third and door (3) input terminal with door (2) output end；Third
There is 2 input terminals, one output end with door (3), input terminal is that the first time-delay mechanism (7) output signal and second export with door (2)
Signal, output end connect the second time-delay mechanism (8) input terminal；The output signal of second time-delay mechanism (8) is separately connected third exhibition
Wide time-delay mechanism (9) input terminal and the 4th with door (4) input terminal；Third broadening time-delay mechanism (9) output end is separately connected tripping
Coil 1TJ and tripping driving signal 1xj；4th with door (4) have 2 input terminals be the second time-delay mechanism (8) output signal and
First or door (11) output signal, the 4th connect the 4th broadening time-delay mechanism (10) with door (4) output end；4th broadening delay dress
It sets (10) output end and is separately connected closing coil 2HJ and closing coil driving signal 2xj；First or door (11) input terminal be two
It is a reflection the first position breaker 1DL signal, respectively the first circuit breaker position signal 1DL-TWL and with the first breaker position
The first confidence 1DL-TWL different circuit breaker position signal 1DL-HWL；Second or door (12) input terminal be block signal
BS, second or door (12) output end connection the first time-delay mechanism (7)；
The voltage UIISignal is second group of voltage circle voltage of No. 1 primary voltage mutual inductor or the voltage UIIBased on signal
In substation, the secondary voltage of low-pressure side；
The first circuit breaker position signal 1DL-HWL be and the first breaker 1DL in the first circuit breaker position signal 1DL-TWL
The opposite contact in contact or the first circuit breaker position signal 1DL-HWL are breaker operation cabinet and the first breaker position
One group of different tripping position relay contacts or the first circuit breaker position signal 1DL-HWL in confidence 1DL-TWL
For the breaker operation cabinet one group closing position relay contact different from the first circuit breaker position signal 1DL-TWL.
2. a kind of automatic throw-in equipment of emergency power supply according to claim 1, it is characterised in that first time-delay mechanism
(7) delay time is 10-20 seconds.
3. a kind of automatic throw-in equipment of emergency power supply according to claim 1, it is characterised in that the third broadening delay
Device (9) time is set as 200 milliseconds.
4. a kind of automatic throw-in equipment of emergency power supply according to claim 1, it is characterised in that the 4th broadening delay
Device (10) time is set as 200 milliseconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215418.3A CN105703476B (en) | 2016-04-08 | 2016-04-08 | A kind of automatic throw-in equipment of emergency power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610215418.3A CN105703476B (en) | 2016-04-08 | 2016-04-08 | A kind of automatic throw-in equipment of emergency power supply |
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| Publication Number | Publication Date |
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| CN105703476A CN105703476A (en) | 2016-06-22 |
| CN105703476B true CN105703476B (en) | 2019-01-11 |
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| CN201610215418.3A Active CN105703476B (en) | 2016-04-08 | 2016-04-08 | A kind of automatic throw-in equipment of emergency power supply |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106130170A (en) * | 2016-07-17 | 2016-11-16 | 安徽卓越电气有限公司 | A kind of standby power system |
| CN111614260B (en) * | 2019-06-25 | 2022-05-03 | 南京拓途电子有限公司 | Circuit for reliably driving coil load under low frequency |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215898Y (en) * | 2008-06-27 | 2009-04-01 | 南京南瑞继保电气有限公司 | Backup auto-activating device having remote auto-activating function |
| CN101552489A (en) * | 2008-12-23 | 2009-10-07 | 江苏省电力公司镇江供电公司 | Method for controlling automatic operation of standby power by microcomputer of inner bridge and single bus connection |
| CN205544571U (en) * | 2016-04-08 | 2016-08-31 | 国家电网公司 | Automatic throw -in equipment of emergency power supply |
-
2016
- 2016-04-08 CN CN201610215418.3A patent/CN105703476B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201215898Y (en) * | 2008-06-27 | 2009-04-01 | 南京南瑞继保电气有限公司 | Backup auto-activating device having remote auto-activating function |
| CN101552489A (en) * | 2008-12-23 | 2009-10-07 | 江苏省电力公司镇江供电公司 | Method for controlling automatic operation of standby power by microcomputer of inner bridge and single bus connection |
| CN205544571U (en) * | 2016-04-08 | 2016-08-31 | 国家电网公司 | Automatic throw -in equipment of emergency power supply |
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