CN109256852A - A kind of instrument redundant power automatic switching control equipment and its application method - Google Patents
A kind of instrument redundant power automatic switching control equipment and its application method Download PDFInfo
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- CN109256852A CN109256852A CN201811271929.2A CN201811271929A CN109256852A CN 109256852 A CN109256852 A CN 109256852A CN 201811271929 A CN201811271929 A CN 201811271929A CN 109256852 A CN109256852 A CN 109256852A
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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
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Abstract
The invention discloses a kind of instrument redundant power automatic switching control equipment and its application methods, belong to field of electrical control, solve the problems, such as that existing instrument power supply system reliability is poor.The present invention includes online ups power, two breakers, intermediate relay, two D.C. regulated power supplies, two cities breaker Jun Yu are electrically connected, it is connected after intermediate relay driving coil and two D.C. regulated power supplies are in parallel with the first breaker, second breaker is connected on line type UPS power supply, ups power output phase line is connected with two D.C. regulated power supplies respectively, two D.C. regulated power supplies pass through intermediate relay normally-closed contact and are connected with ups power output zero curve, and two D.C. regulated power supplies are connected with main DC circuit and redundant direct current circuit respectively., it can be achieved that exchange redundant power supply when municipal power failure, it can be achieved that direct current redundant power supply when main DC circuit failure.The present invention realizes the power supply of alternating current and direct current dual redundant, meets the uninterrupted power supply needs of instrumentation.
Description
Technical field
The invention belongs to field of electrical control, and in particular to a kind of instrument redundant power automatic switching control equipment and its user
Method.
Background technique
D.C. regulated power supply plays key player in chemical industry, electric power, metallurgical blind controller system, except DCS, SLC and
PLC dispatch control system carry DC power supplier outside, D.C. regulated power supply be blind controller system primary instrument, guard grating, every
It powers from peripheral equipments such as device, temperature transmitter, intermediate relay, solenoid valve and safety instrument secondary instruments.Metallurgical production control
Plant automation degree is higher and higher, and the loss of accident bring is increasing, and the reliability of power supply system in process control and
Play an important role in process safety interlock protection, D.C. regulated power supply can reliable and stable work, directly affect production process
Continuity, safety.Currently, iron and steel metallurgy production field is electrically the 220V.AC power-supply service majority of blind controller system
For single channel, all D.C. regulated power supplies all receive Alternating Current Power Supply all the way, once as a result alternating current power loss, entire DC power-supply system
All paralysis, do not meet redundant power supply requirement.It is electrical seldom to use ups power for the 220V.AC power supply of blind controller system.And
And several regulated power supply parallel runnings, different D.C. regulated power supply carrying load abilities is different, rush of current between power supply is caused,
Make to load lesser D.C. regulated power supply and be easily damaged.It is poor using the instrument power supply system reliability of the prior art, it cannot be guaranteed that
The continuous safety of instrumentation is without interrupt operation.
Summary of the invention
The object of the present invention is to provide a kind of instrument redundant power automatic switching control equipments, to solve existing instrument power supply system
The problem of poor reliability.
It is a further object of the present invention to provide a kind of application methods of instrument redundant power automatic switching control equipment.
The technical scheme is that a kind of instrument redundant power automatic switching control equipment, including online ups power,
One breaker and the second breaker, further include intermediate relay, the first D.C. regulated power supply and the second D.C. regulated power supply, and first
The input terminal of breaker is connected with alternating current phase line and alternating current zero curve, the driving coil of intermediate relay, the first DC voltage-stabilizing electricity
After source, the second D.C. regulated power supply are in parallel, phase line is exported with the first breaker and the first breaker output zero curve is connected, second
The input terminal of breaker is connected with alternating current phase line and alternating current zero curve, the output end of the second breaker and on line type UPS electricity
The input terminal in source is connected, and the output end of intermediate relay normally-closed contact is connected with ups power output zero curve, intermediate relay
The input terminal of normally-closed contact is connected with the first D.C. regulated power supply and the second D.C. regulated power supply respectively, ups power output phase
Line is connected with the first D.C. regulated power supply and the second D.C. regulated power supply respectively, the output end connection of the first D.C. regulated power supply
There is main DC circuit, the output end of the second D.C. regulated power supply is connected with redundant direct current circuit, main DC circuit and redundant direct current
Circuit is connected with instrument general supply.
It as a further improvement of the present invention, further include third breaker, the 4th breaker and D.C. contactor, first is straight
The output end of stream regulated power supply is connected with the input terminal of third breaker, the driving coil and third breaker of D.C. contactor
Anode, the cathode of output end are connected, the positive phase of the input terminal and third breaker output end of D.C. contactor normally opened contact
Connection, the output end of D.C. contactor normally opened contact are connected with instrument general supply, and instrument general supply and third breaker export
The cathode at end is connected, and third breaker, the driving coil of D.C. contactor and D.C. contactor normally opened contact constitute main straight
Current circuit, the output end of the second D.C. regulated power supply are connected with the input terminal of the 4th breaker, D.C. contactor normally-closed contact
Input terminal be connected with the anode of the 4th breaker output end, the output end of D.C. contactor normally-closed contact and instrument general supply
It is connected, instrument general supply is connected with the cathode of the 4th breaker output end, the 4th breaker and the normally closed touching of D.C. contactor
Point constitutes redundant direct current circuit.
It as a further improvement of the present invention, further include the first A.C. contactor and the second A.C. contactor, the second exchange
Contactor normally-closed contact is connected with the driving coil of the first A.C. contactor, the input terminal of the second A.C. contactor normally-closed contact with
First breaker output phase line is connected, and driving coil output end and the first breaker of the first A.C. contactor export zero curve phase
Connection, the first D.C. regulated power supply and the second D.C. regulated power supply pass through the first A.C. contactor normally opened contact and the first open circuit
Device output phase line is connected, and the first A.C. contactor normally-closed contact is connected with the driving coil of the second A.C. contactor, and first hands over
The input terminal for flowing contactor normally-closed contact is connected with ups power output phase line, the driving coil output of the second A.C. contactor
End is connected with the input terminal of intermediate relay normally-closed contact, and the first D.C. regulated power supply and the second D.C. regulated power supply pass through
Second A.C. contactor normally opened contact is connected with ups power output phase line.
A kind of application method of instrument redundant power automatic switching control equipment is successively closed the first breaker and the second open circuit
Device, when the first breaker closing, the driving coil of intermediate relay obtains electric, intermediate relay normally-closed contact disconnection, and alternating current is excellent
First to power for the first D.C. regulated power supply and the second D.C. regulated power supply, on line type UPS power supply, which is realized, exchanges redundant power supply, and first
The main DC circuit that D.C. regulated power supply is connected is preferably the power supply of instrument general supply, and the second D.C. regulated power supply is connected superfluous
Remaining DC circuit realizes direct current redundant power supply to instrument general supply；When alternating current breaks down, the driving coil of intermediate relay
Must not electricity, intermediate relay normally-closed contact closure automatically switches to be the first D.C. regulated power supply and the by line type UPS power supply
The power supply of two D.C. regulated power supplies；When main DC circuit breaks down, automatically switch to be that instrument is always electric by redundant direct current circuit
Source power supply.
As a further improvement of the present invention, third breaker, the 4th breaker and D.C. contactor are added, it is straight by first
The output end of stream regulated power supply is connected with the input terminal of third breaker, by the driving coil of D.C. contactor and third open circuit
Anode, the cathode of device output end are connected, just with third breaker output end by the input terminal of D.C. contactor normally opened contact
Pole is connected, and the output end of D.C. contactor normally opened contact is connected with instrument general supply, and instrument general supply is broken with third
The cathode of road device output end is connected, third breaker, the driving coil of D.C. contactor and D.C. contactor normally opened contact group
At main DC circuit, the output end of the second D.C. regulated power supply is connected with the input terminal of the 4th breaker, direct current is connect
The input terminal of tentaculum normally-closed contact is connected with the anode of the 4th breaker output end, by the output end and instrument of tentaculum normally-closed contact
Table general supply is connected, and instrument general supply is connected with the cathode of the 4th breaker output end, the 4th breaker and direct current connect
Tentaculum normally-closed contact constitutes redundant direct current circuit；
After being successively closed the first breaker and the second breaker, then it is successively closed third breaker and the 4th breaker, works as third
When breaker closing, the driving coil of D.C. contactor obtain it is electric, D.C. contactor normally opened contact closure and D.C. contactor it is normally closed
Contact disconnects, and the main DC circuit that the first D.C. regulated power supply is connected is preferably the power supply of instrument general supply, the second DC voltage-stabilizing
The redundant direct current circuit that power supply is connected realizes direct current redundant power supply；When main DC circuit breaks down, D.C. contactor
Driving coil must not be electric, and D.C. contactor normally opened contact disconnects and D.C. contactor normally-closed contact is closed, and automatically switches as by superfluous
Remaining DC circuit is the power supply of instrument general supply.
As a further improvement of the present invention, the first A.C. contactor and the second A.C. contactor are added, by the second exchange
Contactor normally-closed contact is connected with the driving coil of the first A.C. contactor, by the input terminal of the second A.C. contactor normally-closed contact
It is connected with the first breaker output phase line, by the driving coil output end of the first A.C. contactor and the first breaker output zero
Line is connected, and the input terminal of the first A.C. contactor normally opened contact is connected with the first breaker output phase line, first is handed over
The output end of stream contactor normally opened contact is connected with the first D.C. regulated power supply, by the first A.C. contactor normally-closed contact and the
The driving coil of two A.C. contactors is connected, and the input terminal of the first A.C. contactor normally-closed contact and ups power are exported phase line
It is connected, the driving coil output end of the second A.C. contactor is connected with the output end of intermediate relay normally-closed contact, it will
The input terminal of second A.C. contactor normally opened contact is connected with ups power output phase line, by the normally opened touching of the second A.C. contactor
The output end of point is connected with the second D.C. regulated power supply；
After the first breaker closing, before the second breaker, the driving coil of the second A.C. contactor must not be electric, and the second exchange connects
Tentaculum normally-closed contact closure and the second A.C. contactor normally opened contact disconnects, the driving coil of the first A.C. contactor obtain it is electric, the
One A.C. contactor normally opened contact closure and the disconnection of the first A.C. contactor normally-closed contact, are the first D.C. regulated power supply by alternating current
It powers with the second D.C. regulated power supply；When alternating current breaks down, the driving coil of the first A.C. contactor must not be electric, and first hands over
It flows the disconnection of contactor normally opened contact and the first A.C. contactor normally-closed contact is closed, the driving coil of the second A.C. contactor obtains
Electricity, the second A.C. contactor normally-closed contact disconnects and the second A.C. contactor normally opened contact is closed, and is the by line type UPS power supply
One D.C. regulated power supply and the power supply of the second D.C. regulated power supply；First A.C. contactor and the second A.C. contactor form interlocking,
Guarantee that only AC power source (alternating current or on line type UPS power supply) is powered all the way, is prevented two-way AC power source while operation and is generated
Tripping ensures circuit reliably working.
The beneficial effects of the present invention are:
1. the present invention connects on line type UPS power supply all the way in mains-supplied route and realizes redundant power supply, in municipal power failure,
The state switching of on line type UPS power supply power supply is realized by intermediate relay；Meanwhile occurring all the way in redundant direct current regulated power supply
After failure decompression, spare D.C. regulated power supply can be automatically switched to from failure D.C. regulated power supply by D.C. contactor；This hair
It is bright to realize the power supply of alternating current and direct current dual redundant, the uninterrupted power supply needs of instrumentation are met, instrument system direct current is improved
The safety and reliability of power supply；
2. the first A.C. contactor and the second A.C. contactor in the present invention form interlocking, guarantee there was only AC power source all the way
Power supply prevents two-way AC power source while operation and generates tripping, ensures circuit reliably working；
3. the present invention realizes the no-delay switching of redundant power by the combination of simple component, responding sensitive, performance can
It leans on, user can easily carry out installation and electrical connection according to actual use.
Detailed description of the invention
Fig. 1 is the circuit diagram of the embodiment of the present invention 1；
Fig. 2 is the circuit diagram of the embodiment of the present invention 2.
In figure, 1 is the first D.C. regulated power supply；2 be the second D.C. regulated power supply；3 be on line type UPS power supply；4 be instrument
General supply；QF1 is the first breaker；QF2 is the second breaker；QF3 is third breaker；QF4 is the 4th breaker；During KA is
Between relay；KA-1 is intermediate relay normally-closed contact；KM1 is the first A.C. contactor；KM1-1 is that the first A.C. contactor is normal
Closed contact；KM1-2 is the first A.C. contactor normally opened contact；KM2 is the second A.C. contactor；KM2-1 is the second ac contactor
Device normally-closed contact；KM2-2 is the second A.C. contactor normally opened contact；KM3 is D.C. contactor；KM3-1 is that D.C. contactor is normal
Open contact；KM3-2 is D.C. contactor normally-closed contact；L is alternating current phase line；N is alternating current zero curve；L1 is the first breaker output phase
Line；N1 is that the first breaker exports zero curve；L2 is that ups power exports phase line；N2 is that ups power exports zero curve.
Specific embodiment
Following embodiment can further illustrate the present invention, but the invention is not limited in any way.
The first D.C. regulated power supply 1 and the second D.C. regulated power supply 2 in following embodiment are 24V DC voltage-stabilizing electricity
Source, instrument general supply 4 are the power supply of all 24V instrumentations.
Power supply power quality index in following embodiment is as follows:
Communication power supply specification: voltage is 220V ± 10%, and frequency is 50 ± 5HZ, staircasing effects rate < 10%；
DC power supply specification: voltage 24V+10/-5%, ripple voltage < 1%, permission input power wink break time <
20ms。
Embodiment 1,
As shown in Figure 1, a kind of instrument redundant power automatic switching control equipment, including online ups power 3, the first circuit breaker Q F1 and
Second circuit breaker Q F2 further includes intermediate relay KA, the first D.C. regulated power supply 1 and the second D.C. regulated power supply 2, and first is disconnected
The input terminal of road device QF1 is connected with alternating current phase line L and alternating current zero curve N, and the driving coil of intermediate relay KA, the first direct current are steady
After voltage source 1,2 parallel connection of the second D.C. regulated power supply, phase line L1 is exported with the first breaker and the first breaker exports zero curve N1
It is connected, the input terminal of the second circuit breaker Q F2 is connected with alternating current phase line L and alternating current zero curve N, the output of the second circuit breaker Q F2
End is connected with the input terminal of the on line type UPS power supply 3, the output end and ups power of intermediate relay normally-closed contact KA-1
Output zero curve N2 be connected, the input terminal of intermediate relay normally-closed contact KA-1 respectively with the first D.C. regulated power supply 1 and second
D.C. regulated power supply 2 is connected, and it is electric with the first D.C. regulated power supply 1 and the second DC voltage-stabilizing respectively that ups power exports phase line L2
Source 2 is connected, and the output end of the first D.C. regulated power supply 1 is connected with main DC circuit, the output end of the second D.C. regulated power supply 2
It is connected with redundant direct current circuit, main DC circuit and redundant direct current circuit are connected with instrument general supply 4.
It further include third circuit breaker Q F3, the 4th circuit breaker Q F4 and D.C. contactor KM3, the first D.C. regulated power supply 1
Output end is connected with the input terminal of third circuit breaker Q F3, and the driving coil and third circuit breaker Q F3 of D.C. contactor KM3 is defeated
Anode, the cathode of outlet are connected, input terminal and the third circuit breaker Q F3 output end of D.C. contactor normally opened contact KM3-1
Anode is connected, and the output end of D.C. contactor normally opened contact KM3-1 is connected with instrument general supply 4, instrument general supply 4 and
The cathode of three circuit breaker Q F3 output ends is connected, third circuit breaker Q F3, the driving coil of D.C. contactor KM3 and direct current contact
Device normally opened contact KM3-1 constitutes main DC circuit, and the output end of the second D.C. regulated power supply 2 is defeated with the 4th circuit breaker Q F4's
Entering end to be connected, the input terminal of D.C. contactor normally-closed contact KM3-2 is connected with the anode of the 4th circuit breaker Q F4 output end,
The output end of D.C. contactor normally-closed contact KM3-2 is connected with instrument general supply 4, instrument general supply 4 and the 4th circuit breaker Q F4
The cathode of output end is connected, and the 4th circuit breaker Q F4 and D.C. contactor normally-closed contact KM3-2 constitute redundant direct current circuit.
Successively it is closed the first circuit breaker Q F1, the second circuit breaker Q F2, third circuit breaker Q F3 and the 4th circuit breaker Q F4.When
When one circuit breaker Q F1 is closed, the driving coil of intermediate relay KA obtains electric, intermediate relay normally-closed contact KA-1 disconnection, alternating current
It is preferably the first D.C. regulated power supply 1 and the power supply of the second D.C. regulated power supply 2, on line type UPS power supply 3 realizes that exchange redundancy supplies
Electricity.When third circuit breaker Q F3 closure, the driving coil of D.C. contactor KM3 obtains electric, D.C. contactor normally opened contact KM3-1
Closure and D.C. contactor normally-closed contact KM3-2 disconnection, the first D.C. regulated power supply 1 are preferably that instrument general supply 4 is powered, and second
D.C. regulated power supply 2 realizes direct current redundant power supply.When alternating current breaks down, the driving coil of intermediate relay KA must not be electric,
Intermediate relay normally-closed contact KA-1 closure automatically switches to be the first D.C. regulated power supply 1 and the by line type UPS power supply 3
The power supply of two D.C. regulated power supplies 2.When the power supply line of the first D.C. regulated power supply 1 breaks down, the drive of D.C. contactor KM3
Moving winding must not be electric, and D.C. contactor normally opened contact KM3-1 is disconnected and D.C. contactor normally-closed contact KM3-2 is closed, and cuts automatically
Being changed to by the second D.C. regulated power supply 2 is that instrument general supply 4 is powered.
In the present embodiment, when alternating current breaks down, realize what on line type UPS power supply 3 was powered by intermediate relay KA
No-delay switching；Meanwhile when the power supply line of the first D.C. regulated power supply 1 breaks down, realized by D.C. contactor KM3
The no-delay switching of second D.C. regulated power supply 2 power supply, the automatic switchover of DC voltage-stabilizing dual power supply system are one real-time
Property and the very high control system of reliability, are rapidly completed between active and standby power supply by D.C. contactor KM3 according to power failure state and are cut automatically
It changes, to keep the continuity of direct current supply.Alternating current and direct current dual redundant powering mode, meets the uninterrupted power supply of instrumentation
It needs, improves the safety and reliability of instrument system direct current supply.
Embodiment 2,
The present embodiment and the difference of embodiment 1 are: as shown in Fig. 2, further including the first A.C. contactor KM1 and the second ac contactor
Device KM2, the second A.C. contactor normally-closed contact KM2-1 connect with the driving coil of the first A.C. contactor KM1, and the second exchange connects
The input terminal of tentaculum normally-closed contact KM2-1 is connected with the first breaker output phase line L1, the driving of the first A.C. contactor KM1
Coil output is connected with the first breaker output zero curve N1, and the first D.C. regulated power supply 1 and the second D.C. regulated power supply 2 are
It exports phase line L1 with the first breaker by the first A.C. contactor normally opened contact KM1-2 to be connected, the first A.C. contactor is normal
Closed contact KM1-1 connects with the driving coil of the second A.C. contactor KM2, and the first A.C. contactor normally-closed contact KM1-1's is defeated
Enter end to be connected with ups power output phase line L2, the driving coil output end and intermediate relay of the second A.C. contactor KM2 is normal
The input terminal of closed contact KA-1 is connected, and the first D.C. regulated power supply 1 is exchanged by second with the second D.C. regulated power supply 2 and connect
Tentaculum normally opened contact KM2-2 is connected with ups power output phase line L2.
After the first circuit breaker Q F1 closure, before the second circuit breaker Q F2, the driving coil of the second A.C. contactor KM2 must not
Electricity, the second A.C. contactor normally-closed contact KM2-1 closure and the second A.C. contactor normally opened contact KM2-2 disconnection, the first exchange
The driving coil of contactor KM1 obtains electric, the first A.C. contactor normally opened contact KM1-2 closure and the normally closed touching of the first A.C. contactor
Point KM1-1 is disconnected, and is that the first D.C. regulated power supply 1 and the second D.C. regulated power supply 2 are powered by alternating current, i.e. the first A.C. contactor
The output end of normally opened contact KM1-2 is that the first D.C. regulated power supply 1 and the second D.C. regulated power supply 2 provide 220V.AC power supply.When
When alternating current breaks down, the driving coil of the first A.C. contactor KM1 must not be electric, the first A.C. contactor normally opened contact KM1-2
It disconnects and the first A.C. contactor normally-closed contact KM1-1 is closed, the driving coil of the second A.C. contactor KM2 obtains electric, the second friendship
It flows contactor normally-closed contact KM2-1 disconnection and the second A.C. contactor normally opened contact KM2-2 is closed, be by line type UPS power supply 3
First D.C. regulated power supply 1 and the power supply of the second D.C. regulated power supply 2, the i.e. output of the second A.C. contactor normally opened contact KM2-2
End is that the first D.C. regulated power supply 1 and the second D.C. regulated power supply 2 provide 220V.AC power supply.First A.C. contactor KM1 and
Two A.C. contactor KM2 form interlocking, guarantee that only AC power source is powered all the way, is prevented two-way AC power source while operation and is produced
Raw tripping, further improves the reliability of circuit.
Claims (6)
1. a kind of instrument redundant power automatic switching control equipment, including online ups power, the first breaker and the second breaker,
It is characterized by also including intermediate relay (KA), the first D.C. regulated power supply (1) and the second D.C. regulated power supply (2),
The input terminal of first breaker (QF1) is connected with alternating current phase line (L) and alternating current zero curve (N), the intermediate relay
It is defeated with the first breaker after the driving coil of device (KA), the first D.C. regulated power supply (1), the second D.C. regulated power supply (2) are in parallel
Phase line (L1) is connected with the first breaker output zero curve (N1) out,
The input terminal of second breaker (QF2) is connected with alternating current phase line (L) and alternating current zero curve (N), the second breaker
(QF2) output end is connected with the input terminal of the on line type UPS power supply (3), intermediate relay normally-closed contact (KA-1)
Output end and ups power output zero curve (N2) are connected, and the input terminal of intermediate relay normally-closed contact (KA-1) is respectively with first
D.C. regulated power supply (1) is connected with the second D.C. regulated power supply (2), ups power export phase line (L2) respectively with the first direct current
Regulated power supply (1) is connected with the second D.C. regulated power supply (2),
The output end of first D.C. regulated power supply (1) is connected with main DC circuit, second D.C. regulated power supply (2)
Output end is connected with redundant direct current circuit, and the main DC circuit and redundant direct current circuit are connected with instrument general supply (4).
2. a kind of instrument redundant power automatic switching control equipment according to claim 1, it is characterised in that: further include that third is disconnected
Road device (QF3), the 4th breaker (QF4) and D.C. contactor (KM3),
The output end of first D.C. regulated power supply (1) is connected with the input terminal of third breaker (QF3), D.C. contactor
(KM3) driving coil is connected with anode, the cathode of third breaker (QF3) output end, D.C. contactor normally opened contact
(KM3-1) input terminal is connected with the anode of third breaker (QF3) output end, D.C. contactor normally opened contact (KM3-1)
Output end be connected with instrument general supply (4), instrument general supply (4) is connected with the cathode of third breaker (QF3) output end
It connects, third breaker (QF3), the driving coil of D.C. contactor (KM3) and D.C. contactor normally opened contact (KM3-1) constitute
Main DC circuit,
The output end of second D.C. regulated power supply (2) is connected with the input terminal of the 4th breaker (QF4), D.C. contactor
The input terminal of normally-closed contact (KM3-2) is connected with the anode of the 4th breaker (QF4) output end, D.C. contactor normally-closed contact
(KM3-2) output end is connected with instrument general supply (4), and instrument general supply (4) is negative with the 4th breaker (QF4) output end
Pole is connected, and the 4th breaker (QF4) and D.C. contactor normally-closed contact (KM3-2) constitute redundant direct current circuit.
3. a kind of instrument redundant power automatic switching control equipment according to claim 1 or 2, it is characterised in that: further include
One A.C. contactor (KM1) and the second A.C. contactor (KM2),
Second A.C. contactor normally-closed contact (KM2-1) is connected with the driving coil of the first A.C. contactor (KM1), the second exchange
The input terminal of contactor normally-closed contact (KM2-1) is connected with the first breaker output phase line (L1), the first A.C. contactor
(KM1) driving coil output end is connected with the first breaker output zero curve (N1), the first D.C. regulated power supply (1) and second
D.C. regulated power supply (2) exports phase line (L1) phase by the first A.C. contactor normally opened contact (KM1-2) and the first breaker
Connection,
First A.C. contactor normally-closed contact (KM1-1) is connected with the driving coil of the second A.C. contactor (KM2), the first exchange
The input terminal of contactor normally-closed contact (KM1-1) is connected with ups power output phase line (L2), the second A.C. contactor (KM2)
Driving coil output end be connected with the input terminal of intermediate relay normally-closed contact (KA-1), the first D.C. regulated power supply (1)
Pass through the second A.C. contactor normally opened contact (KM2-2) and ups power output phase line (L2) with the second D.C. regulated power supply (2)
It is connected.
4. a kind of application method of instrument redundant power automatic switching control equipment described in claim 1, it is characterised in that: successively close
The first breaker (QF1) and the second breaker (QF2) are closed, when the first breaker (QF1) closure, the drive of intermediate relay (KA)
Moving winding obtains electric, intermediate relay normally-closed contact (KA-1) disconnection, and alternating current is preferably that the first D.C. regulated power supply (1) and second are straight
Regulated power supply (2) power supply is flowed, on line type UPS power supply (3) realizes that exchange redundant power supply, the first D.C. regulated power supply (1) are connected
Main DC circuit be preferably instrument general supply (4) power supply, the redundant direct current circuit pair that the second D.C. regulated power supply (2) is connected
Instrument general supply (4) realizes direct current redundant power supply；When alternating current breaks down, the driving coil of intermediate relay (KA) must not
Electricity, intermediate relay normally-closed contact (KA-1) closure automatically switch to be the first DC voltage-stabilizing electricity by line type UPS power supply (3)
Source (1) and the second D.C. regulated power supply (2) power supply；When main DC circuit breaks down, automatically switch as by redundant direct current electricity
Road is instrument general supply (4) power supply.
5. a kind of application method of instrument redundant power automatic switching control equipment according to claim 4, it is characterised in that: increase
If third breaker (QF3), the 4th breaker (QF4) and D.C. contactor (KM3),
The output end of first D.C. regulated power supply (1) is connected with the input terminal of third breaker (QF3), by D.C. contactor
(KM3) driving coil is connected with anode, the cathode of third breaker (QF3) output end, by D.C. contactor normally opened contact
(KM3-1) input terminal is connected with the anode of third breaker (QF3) output end, by D.C. contactor normally opened contact (KM3-
1) output end is connected with instrument general supply (4), by the cathode of instrument general supply (4) and third breaker (QF3) output end
It is connected, third breaker (QF3), the driving coil of D.C. contactor (KM3) and D.C. contactor normally opened contact (KM3-1) group
At main DC circuit,
The output end of second D.C. regulated power supply (2) is connected with the input terminal of the 4th breaker (QF4), by D.C. contactor
The input terminal of normally-closed contact (KM3-2) is connected with the anode of the 4th breaker (QF4) output end, by tentaculum normally-closed contact
(KM3-2) output end is connected with instrument general supply (4), by instrument general supply (4) and the 4th breaker (QF4) output end
Cathode is connected, and the 4th breaker (QF4) and D.C. contactor normally-closed contact (KM3-2) constitute redundant direct current circuit；
After being successively closed the first breaker (QF1) and the second breaker (QF2), then successively it is closed third breaker (QF3) and the
Four breakers (QF4), when third breaker (QF3) closure, the driving coil of D.C. contactor (KM3) obtains electric, direct current contact
Device normally opened contact (KM3-1) closure and D.C. contactor normally-closed contact (KM3-2) disconnection, company of the first D.C. regulated power supply (1) institute
The main DC circuit connect is preferably instrument general supply (4) power supply, the redundant direct current circuit that the second D.C. regulated power supply (2) is connected
Realize direct current redundant power supply；When main DC circuit breaks down, the driving coil of D.C. contactor (KM3) must not be electric, direct current
Contactor normally opened contact (KM3-1) disconnects and D.C. contactor normally-closed contact (KM3-2) is closed, and automatically switches as by redundant direct current
Circuit is instrument general supply (4) power supply.
6. a kind of application method of instrument redundant power automatic switching control equipment according to claim 4 or 5, feature exist
In: the first A.C. contactor (KM1) and the second A.C. contactor (KM2) are added,
Second A.C. contactor normally-closed contact (KM2-1) is connected with the driving coil of the first A.C. contactor (KM1), by second
The input terminal of A.C. contactor normally-closed contact (KM2-1) is connected with the first breaker output phase line (L1), and the first exchange is connect
The driving coil output end of tentaculum (KM1) is connected with the first breaker output zero curve (N1), and the first A.C. contactor is normally opened
The input terminal of contact (KM1-2) is connected with the first breaker output phase line (L1), by the first A.C. contactor normally opened contact
(KM1-2) output end is connected with the first D.C. regulated power supply (1),
First A.C. contactor normally-closed contact (KM1-1) is connected with the driving coil of the second A.C. contactor (KM2), by first
The input terminal of A.C. contactor normally-closed contact (KM1-1) is connected with ups power output phase line (L2), by the second A.C. contactor
(KM2) driving coil output end is connected with the output end of intermediate relay normally-closed contact (KA-1), by the second ac contactor
The input terminal of device normally opened contact (KM2-2) is connected with ups power output phase line (L2), by the second A.C. contactor normally opened contact
(KM2-2) output end is connected with the second D.C. regulated power supply (2)；
After the first breaker (QF1) closure, before the second breaker (QF2), the driving coil of the second A.C. contactor (KM2) is not
Electric, the second A.C. contactor normally-closed contact (KM2-1) closure and the disconnection of the second A.C. contactor normally opened contact (KM2-2) are obtained, the
The driving coil of one A.C. contactor (KM1) obtain it is electric, the first A.C. contactor normally opened contact (KM1-2) closure and first exchange connect
Tentaculum normally-closed contact (KM1-1) disconnects, and by alternating current be the first D.C. regulated power supply (1) and the second D.C. regulated power supply (2) is powered；
When alternating current breaks down, the driving coil of the first A.C. contactor (KM1) must not be electric, the first A.C. contactor normally opened contact
(KM1-2) it disconnects and the first A.C. contactor normally-closed contact (KM1-1) is closed, the driving coil of the second A.C. contactor (KM2)
Electric, the disconnection of the second A.C. contactor normally-closed contact (KM2-1) and the second A.C. contactor normally opened contact (KM2-2) closure are obtained, by
On line type UPS power supply (3) is the first D.C. regulated power supply (1) and the second D.C. regulated power supply (2) is powered；First A.C. contactor
(KM1) and the second A.C. contactor (KM2) forms interlocking, guarantees that only AC power source is powered all the way, prevents two-way AC power source
It runs simultaneously and generates tripping, ensure circuit reliably working.
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| CN110829579A (en) * | 2019-11-13 | 2020-02-21 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Device for supplying power to two ways of redundant UPS power supply |
| CN113130977A (en) * | 2019-12-31 | 2021-07-16 | 财团法人工业技术研究院 | Precursor structure and method for manufacturing ion conductive layer by using same |
| CN113452129A (en) * | 2021-08-30 | 2021-09-28 | 盛隆电气集团有限公司 | Control method and control system of electric energy quality monitoring device |
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| CN113904432A (en) * | 2021-09-29 | 2022-01-07 | 广东电网有限责任公司 | Dual-redundancy power supply device for valve control of distribution network flexible direct current converter |
| US11811021B2 (en) | 2019-12-31 | 2023-11-07 | Industrial Technology Research Institute | Precursor structure, lamination film of the same, and manufacturing method of ion-conducting layer using the same |
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| CN113904432A (en) * | 2021-09-29 | 2022-01-07 | 广东电网有限责任公司 | Dual-redundancy power supply device for valve control of distribution network flexible direct current converter |
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