CN207304150U - Secondary equipment in power system dual power supply comprehensive management apparatus - Google Patents
Secondary equipment in power system dual power supply comprehensive management apparatus Download PDFInfo
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- CN207304150U CN207304150U CN201721383797.3U CN201721383797U CN207304150U CN 207304150 U CN207304150 U CN 207304150U CN 201721383797 U CN201721383797 U CN 201721383797U CN 207304150 U CN207304150 U CN 207304150U
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Abstract
The utility model discloses a kind of secondary equipment in power system dual power supply comprehensive management apparatus, including two two-way power supply of power supply one and power supply, seven relays of K1~K7, two voltage monitoring modules of KJ1 and KJ2, two switching switches of SAM1 and SAM2, KY1, KY2, tri- energy supply control modules of KY3, one remote control module KT and power work indicator light, the utility model is handed over by replacing, DC relay realizes that alternating current-direct current is used with, two-way power supply can be two-way alternating current, two-way direct current or a friendship mix always, using flexible and convenient maintenance, meet different operating power supply requirement, for second power equipment dual power supply system, realize AC/DC universal, and there is failure locking, voltage monitoring, remote control function.
Description
Technical field
The utility model belongs to second power equipment and supplies electrical domain, and in particular to a kind of secondary equipment in power system dual power supply
Comprehensive management apparatus.
Background technology
The management mode of intelligent substation automated system " unattended+Centralized Monitoring " uses comprehensively, and power transformation is set
Standby normal table operation proposes requirements at the higher level.And the power supply mode of second power equipment and unreliable, at present, secondary device
Substantially power by single supply, DC power-supply system is configured with the charging module of redundancy only in substation and storage battery coordinates guarantor
Hinder power supply reliability, setting switching circuit in ac power supply system or install backup auto-activating device reduces the probability of dead electricity, has no pin
To the device of single interval power supply management.
First, in substation ups power to important load power supplies such as emergency lighting, background monitoring machine, communication 2M routers,
Although being configured with two sets of UPS devices in standing, paired running is unable to, is often occurred because single set ups power failure causes device to lose
The event of electricity, seriously endangers the safety and stability of power grid, need to improve power supply mode, and power supply reliability is improved using dual power supply；Together
When, the working power of second power equipment and disunity, protection, measure and control device, telemechanical apparatus frequently with 220V DC power supplies, after
Platform monitoring equipment, five anti-machines use 220V AC powers, and the network switch then can be general with AC and DC power supply.At present on the market
Double-power supply switching device can only be applicable in two-way AC power, or suitable for the following DC power supplies of two-way 24V, it is impossible to adapt to electric power two
Dual power supply demand under secondary device complex work power conditions.
Second, secondary device working power voltage has relevant regulations, when being distinctly claimed working power overvoltage, to avoid damaging
Equipment, should cut off the power.At present, the non-design voltage detection function of the power supply of AC or DC device.
3rd, at present double-power supply switching device on the market do not design plant failure blocking function, if inside load device
During failure tripping power supply, double-power supply switching device action turns to be supplied to another way power supply, and another way power supply is in failure feelings at this time
Close a floodgate under condition power transmission, secondary pulse will be caused to system.
4th, in the process of running running software exception often occurs for secondary device, it is necessary to manually restart to exclude defect,
If remote control power-off restarting function can be realized, it will significantly shorten the defect expressivity time, and save a large amount of human costs.
Utility model content
Technical problem to be solved in the utility model is to overcome defect described above, there is provided a kind of AC and DC can be flexible
Conversion, possesses the functions such as failure locking, voltage monitoring, remote control, suitable for the dual power supply integrated management of second power equipment
Device.
Based on technical problem to be solved, the utility model provides a kind of second power equipment dual power supply integrated management dress
Put, including two two-way power supply of power supply one and power supply, seven relays of K1~K7, KJ1 and KJ2 two voltage monitoring modules, SAM1
Indicated with two switching switches of SAM2, tri- energy supply control modules of KY1, KY2, KY3, a remote control module KT and power work
Lamp；
The power supply one passes sequentially through the relay K1 normal opened contacts, relay K2 normal opened contacts, through two secondary contacts every
From switching；The power supply two passes sequentially through the relay K3 normal opened contacts, relay K4 normal opened contacts, through two secondary contact isolation
Switching, the power supply two after switching is connected with the power supply one after switching is aggregated to form power supply all the way, then normal by the relay K7
Contact is closed to connect with load；The relay K1 coils are connected to one both ends of power supply by relay K5 normally closed contacts；The relay
Device K2 coils are connected to electricity by the relay K3 normally closed contacts, relay K4 normally closed contacts, relay K1 normal opened contacts successively
One both ends of source；The relay K3 coils are connected to power supply two by relay K1 normally closed contacts, relay K2 normally closed contacts successively
Both ends；The relay K4 coils are connected to power supply two by the relay K1 normally closed contacts, relay K3 normal opened contacts successively
Both ends；The relay K5 coils are connected to two both ends of power supply through the relay K3 normal opened contacts, major loop function pressing plate SQ；Electricity
One work light RD of source is connected to one both ends of power supply through relay K1 normal opened contacts, relay K2 normal opened contacts, and power supply two works
Indicator light LD is connected to two both ends of power supply through relay K3 normal opened contacts, relay K4 normal opened contacts；
The energy supply control module KY1, which is connected to one both ends of power supply, to be responsible for providing working power, electricity to voltage monitoring module KJ1
Source control module KY2, which is connected to two both ends of power supply, to be responsible for providing working power to voltage monitoring module KJ2, ensures energy supply control module
Output is consistent with the powered situation of power supply；Power supply one and two two-way power supply of power supply enter after device control cabinet first by with chain
The switching switch of function（SAM1、SAM2）, switching switch（SAM1、SAM2）Normally closed contact and voltage monitoring module（KJ1、
KJ2）Inlet wire port series connection, switching switch（SAM1、SAM2）Normal opened contact be parallel to voltage monitoring module（KJ1、KJ2）'s
Outlet port, can be by stirring switching switch（SAM1、SAM2）Selection input exits voltage monitoring functions of modules；The voltage
Monitoring modular（KJ1、KJ2）The monitoring definite value of voltage can be adjusted respectively, when supply voltage is higher or lower than setting valve, voltage prison
Survey module（KJ1、KJ2）Auto power off circuit；
The energy supply control module KY3 is connected to the front end for collecting back loading power supply, is responsible for providing work to remote control module KT
Power supply；The remote control contact YK of any measure and control device of the coil of the remote control module KT through substation, corresponding remote control pressing plate LP
Energy supply control module KY3 outgoing line sides are connected to, remote control module KT can be started by Dispatching monitor and control system；Manual reboot button KA with it is distant
It is in parallel to control circuit, also manually can start remote control module KT by reboot button KA, remote control module KT is powered, after adjusting delay
Normal opened contact closes；The normal opened contact of the coil of relay K7 through remote control module KT is connected to the front end of load power source, passes through
Relay K7 action cut-out load powers realize that load device is restarted.
Further, two two-way power supply of power supply one and power supply described in the utility model can be two-way AC power or two-way direct current
Power supply, or AC power and DC power supply all the way all the way；AC/DC property and the electricity of the relay K1, relay K2
One AC/DC property of source is consistent, and the relay K3, relay K4, the AC/DC property of relay K5 and power supply two hand over/and it is straight
Fluidity matter is consistent, or seven relays of K1~K7 select AC/DC general-purpose relay；The energy supply control module KY1, KY2,
KY3 is AC/DC common voltage modular converter, and 220V AC voltage or 220V DC voltages can be switched to 5~12V DC electricity
Pressure, for providing working power to remote control module KT, voltage monitoring module KJ1, KJ2, is not required in addition introduce power supply.
Further, relay K6 coils described in the utility model are connected with " plant failure " the contact KG of load equipment, structure
Into load faulty locked loop, the wire loop of cut-in relay K7 after relay K6 contacts are in parallel with remote control contact YK, negative
Relay K7 actions when carrying device interior failure, cut off load power, even if power supply switching action will not send power supply to negative
Lotus, avoids the secondary pulse that power-supply system is subject to failure from injuring.
Preferably, relay K1~K7 described in the utility model is connected by matched universal quick-speed plug base
In circuit, relay quick-replaceable is realized；The one work light RD of power supply, two work light LD of power supply select band
The work light that voltage is shown, can normally ignite when powered and show magnitude of voltage.
The utility model realizes that dual power supply switches by relay, can meet difference using AC and DC general-purpose relay
Working power demand；Introducing load device failure contact KG starting relays K7 realizes failure locking function；Selection can be distinguished
The voltage monitoring module for adjusting voltage monitoring definite value is connected to device enter line side, and corresponding electricity is disconnected when supply voltage exceedes definite value
Resource loop, forces device to switch in addition power supply all the way and powers, the voltage of power supply is ensure that while realizing function of voltage monitoring
Quality；Introduce the remote control circuit of transformer station measurement and control device（YK and LP）Realize remote control to restart, while devise device just
Ground reboot button, realize continuous inlet wire be spaced apart can a key restart；Using the remote control module that can adjust delay definite value, definite value root
Adjusted accordingly according to the reboot time of load device.
Due to the use of techniques described above scheme, the utility model has the following advantages：
1st, realize that AC and DC is general, the resistance switching pattern from power supply to load ensures that two-way power supply will not be caused simultaneously
Row, connection principle are supported to provide for simple replacement of relay, you can dual power supply handoff functionality is realized in the case of ensureing different electrical power, universal
The design of quick-speed plug base provides the occupation mode of fast and flexible, adapts to the different power environment of Secondary device；
2nd, voltage monitoring is realized with automatically switching, and voltage monitoring module is introduced into control loop, it can be achieved that supply voltage
The power supply of another way qualification power supply is automatically switched to when unqualified, avoids unqualified voltage longtime running from causing equipment damage；
Cut off the power when the 3rd, realizing load equipment failure circuit, effectively avoid second short circuit from impacting, by load equipment " dress
Put failure " signal introducing control loop, avoid under the fault conditions such as load short circuit, put into addition secondary punching caused by power supply all the way
Hit, reduce accident scope；
4th, realize remote control and restart function, in the case where needing restarting equipment, cause to communicate as telecontrol communication machine crashes
It when abnormal, can be restarted by remote control, save personnel's round-trip time-consuming, very big shortening defect expressivity time.
Brief description of the drawings
Fig. 1 is the electrical wiring schematic diagram of the utility model；
Fig. 2 is the function of voltage monitoring elementary diagram of the utility model；
Fig. 3 is that function elementary diagram is restarted in the remote control of the utility model；
Fig. 4 is the structure arrangement schematic diagram of the utility model；
Fig. 5 is the effect flow chart of the utility model.
Embodiment：
The utility model is described in further detail with reference to the accompanying drawings and examples.
Second power equipment dual power supply comprehensive management apparatus described in the utility model, including power supply one and two two-way of power supply electricity
Source, seven relays of K1~K7, two voltage monitoring modules of KJ1 and KJ2, two switching switches of SAM1 and SAM2, KY1, KY2,
Tri- energy supply control modules of KY3, a remote control module KT and power work indicator light；
Power supply one is sequentially connected in series the normal opened contact of relay K1, K2, and power supply two is sequentially connected in series the normally opened of relay K3, K4 and connects
Point, two-way power supply is aggregated to form load power source all the way after two secondary contact isolation switchings, then passes through relay K7 normally closed contacts
Connected with load；Relay K1, K2 coil are powered by power supply one, and the powered then normal opened contact closure of K1, K2 relay, power supply one is given
Load supplying；Relay K3, K4 coil are powered by power supply two, powered two powering load of then power supply of K3, K4 relay；Relay
K1, K2 normally closed contact are connected in K3 wire loops, and K1 normally closed contacts and K3 normal opened contacts are connected in K4 wire loops, power supply
K3, K4 coil obtain electric after one dead electricity, and power supply two to load circuit is connected, you can switch to power supply two and power to load；K3, K4 are normal
Close contact and K1 normal opened contacts are connected on K2 relay coils circuit, ensure that K2 relays obtain just now after the K1 actuatings of relay
Electronic work, effectively avoids two-way power supply paired running.Single channel power supply is using two secondary contact switching shapes of two common relays
Into the time difference, while by the mutual locking in circuit, eliminate the time relay that volume is big, of high cost.The work instruction of power supply one
Lamp RD connects with relay K1 normal opened contacts and relay K2 normal opened contacts, and power supply two work light LD and relay K3 is normally opened
Contact and the series connection of relay K4 normal opened contacts, when the secondary contact of the same circuit two acts, work light ignites and shows electricity
Source magnitude of voltage, can accurately reflect the switching state of power supply and convenient observation.
Relay K5 coils are after major loop function pressing plate SQ, and access power supply two is powered, and K5 normally closed contacts seal in relay
K1 wire loops, may be selected both of which：
Pattern one：Major loop pattern（Switchback power supply one is powered when power supply one is sent a telegram in reply）.Pressing plate SQ switches to " stopping " state,
Relay K5 is failure to actuate, and switchback power supply one is powered after power supply one is sent a telegram in reply；
Pattern two：Non-master circuit pattern（Not switchback when power supply one is sent a telegram in reply）.Pressing plate SQ switches to " work " state, relay
K5 is acted, and K5 coils obtain electric, locking relay K1 when power supply two is powered, and circuit not switchback after power supply one is sent a telegram in reply at this time, reduces electricity
Road switching times, further ensure the reliability of power supply.
The relay K6 coils are connected with " plant failure " the contact KG of load equipment, are formed load faulty locking and are returned
Road, the wire loop of cut-in relay K7 after relay K6 contacts are in parallel with remote control contact YK, in load equipment internal fault
Relay K7 act, cut off load power, even if power supply switching action will not send power supply to load, avoid power-supply system by
Secondary pulse to failure injures.
The energy supply control module KY1, which is connected to one both ends of power supply, to be responsible for providing working power, electricity to voltage monitoring module KJ1
Source control module KY2, which is connected to two both ends of power supply, to be responsible for providing working power to voltage monitoring module KJ2, ensures energy supply control module
Output is consistent with the powered situation of power supply；Power supply one and two two-way power supply of power supply enter after device control cabinet first by with chain
The switching switch of function（SAM1、SAM2）, switching switch（SAM1、SAM2）Normally closed contact and voltage monitoring module（KJ1、
KJ2）Inlet wire port series connection, switching switch（SAM1、SAM2）Normal opened contact be parallel to voltage monitoring module（KJ1、KJ2）'s
Outlet port, can be by stirring switching switch（SAM1、SAM2）Selection input exits voltage monitoring functions of modules；The voltage
Monitoring modular（KJ1、KJ2）The monitoring definite value of voltage can be adjusted respectively, when supply voltage is higher or lower than setting valve, voltage prison
Survey module（KJ1、KJ2）Auto power off circuit.Voltage monitoring module has function of voltage monitoring, in Over High-Limit Voltage or more
Lower limit and when reaching setting valve, circuit of cutting off the power；Two voltage monitoring module contacts are connected to the major loop of power supply one, two respectively
In, during voltage out-of-limit, you can cut off corresponding power supply major loop, it can be achieved that when supply voltage gets over line all the way, automatically switch to another
Power supply is powered all the way.Function of voltage monitoring can select throwing to move back by SAM1, SAM2 switching switch.
The energy supply control module KY3 is connected to the front end for collecting back loading power supply, is responsible for providing work to remote control module KT
Power supply；The remote control contact YK of any measure and control device of the coil of the remote control module KT through substation, corresponding remote control pressing plate LP
Energy supply control module KY3 outgoing line sides are connected to, remote control module KT can be started by Dispatching monitor and control system；Manual reboot button KA with it is distant
It is in parallel to control circuit, also manually can start remote control module KT by reboot button KA, remote control module KT is powered, after adjusting delay
Normal opened contact closes；The normal opened contact of the coil of relay K7 through remote control module KT is connected to the front end of load power source, passes through
Relay K7 action cut-out load powers realize that load device is restarted.Remote control module has the function of timing closing, with relay K6
Normal opened contact parallel connection is followed by the front end of relay K7 coils, junction closure when remote control module is powered, and through adjusting delay time
Back contact disconnects automatically, and realization device remote control restarts function.
Further, two two-way power supply of power supply one and power supply described in the utility model can be two-way AC power or two-way direct current
Power supply, or AC power and DC power supply all the way all the way；AC/DC property and the electricity of the relay K1, relay K2
One AC/DC property of source is consistent, and the relay K3, relay K4, the AC/DC property of relay K5 and power supply two hand over/and it is straight
Fluidity matter is consistent, or seven relays of K1~K7 select AC/DC general-purpose relay；The energy supply control module KY1, KY2,
KY3 is AC/DC common voltage modular converter, and 220V AC voltage or 220V DC voltages can be switched to 5~12V DC electricity
Pressure, for providing working power to remote control module KT, voltage monitoring module KJ1, KJ2, is not required in addition introduce power supply.
Preferably, relay K1~K7 described in the utility model is connected by matched universal quick-speed plug base
In circuit, relay quick-replaceable is realized；The one work light RD of power supply, two work light LD of power supply select band
The work light that voltage is shown, can normally ignite when powered and show magnitude of voltage.
Embodiment：Power supply one described in the utility model is derived from first via UPS ac bus, is powered by UPS devices 1, power supply
Two are derived from the second road UPS ac bus, are powered by UPS devices 2.Two-way power supply is empty for the exchange of 3A through two-way rated current respectively
Air cock accesses Dual-power device.Seven relays（K1、K2、K3、K4、K5、K6、K7）Using 220V AC relays, relay
Device be designed with the completely matched base of its stitch, relay can quick-speed plug be connected on base, tube chamber welds with base is in circuit
Plate, the connection between device is realized by circuit board.
The electrical wiring schematic diagram of the utility model is sequentially connected in series the normally opened of relay K1, K2 and connects referring to attached drawing 1, power supply one
Point, power supply two are sequentially connected in series the normal opened contact of relay K3, K4, and two-way power supply is aggregated to form after two secondary contact isolation switchings
Load power source all the way, then connected by relay K7 normally closed contacts and load.Relay K1 coils connect by relay K5 is normally closed
Point is connected to one both ends of power supply；Relay K2 coils are successively by relay K3 normally closed contacts, relay K4 normally closed contacts, relay
K1 normal opened contacts are connected to one both ends of power supply；Relay K3 coils are normal by the relay K1 normally closed contacts, relay K2 successively
Close contact and be connected to two both ends of power supply；Relay K4 coils connect by relay K1 normally closed contacts, relay K3 normal opened contacts successively
In two both ends of power supply；Relay K5 is connected to two both ends of power supply through relay K3 normally closed contacts.
Voltage detection module KJ1 and KJ2 use overvoltage relay, when setting when voltage is higher than 264V (120% specified electricity
Pressure) when disconnect normally closed contact.To realize whether unrestricted choice puts into voltage detecting function, voltage monitoring module passes through with chain
Switch SAM1, SAM2 of function are connected in circuit, and interlock switch principle has 4 docking points as shown in Fig. 2, interlock switch is selected
12 foot deflector rod switch, normally closed make and break contact connects with monitoring modular into and out of line, and normally opened make and break contact is parallel to normally closed
Make and break contact and monitoring modular both ends.When selection puts into voltage detecting function, deflector rod switch is switched to " ON " shelves, normally closed contact
Closure, normal opened contact disconnect, and voltage monitoring module is sealed in control loop；When function of voltage monitoring is exited in selection, normally closed contact
Closure, deflector rod switch are switched to the disconnection of " OFF " shelves normal opened contact, and normally closed contact disconnects, normal opened contact closure, voltage monitoring module
Exit, electric current is flowed through from normal opened contact, ensures that circuit is connected.
Relay K6 coils are connected with load equipment " plant failure " contact, form the extension of load faulty locking contact, after
Electric appliance K6 normal opened contacts are connected in the relay K7 wire loops, K6 normal opened contacts closure, relay during load equipment failure
Device K7 actions disconnect load power circuit, even if double-power supply loop switching action at this time, will not avoid secondary at power transmission to load
Shocking damage.Another secondary normal opened contact series connection remote signalling of relay K6 is electrically accessed the public measure and control device of substation, in plant failure
Alarm signal is sent to electric substation automation system, notifies operation maintenance personnel to handle.
Delay remote control module KT of the operating voltage for 12V DC is selected, delayed setting is 10 seconds.By the public observing and controlling of substation
The working power circuit of the spare remote control circuit of device access remote control module KT in parallel with manual reboot button KA, it is any to open into then
Remote control module KT is acted, such as Fig. 3.Manual reboot button KA facilitates scene and carries out power supply switching experiment.Remote control module KT is normally opened
After contact is in parallel with relay K6 normal opened contacts at the same time cut-in relay K7 wire loops, receive remote control and open into or restart manually
During order, remote control module KT normal opened contacts closure, relay K7 actions disconnect load power circuit, after being delayed 10 seconds, are remotely controlled mould
Block KT normal opened contacts close automatically, and relay K7 is returned, and complete equipment remote control and restart.
The device case 1 of the utility model is designed using unified panel, sees Fig. 4, and the monitoring of two-way incoming power is thrown and moves back prison
Control switch（One voltage monitoring of power supply is thrown and moves back switching switch 3, two voltage monitoring of power supply is thrown and moves back switching switch 4）And work light
（One work light 5 of power supply, two work light 6 of power supply）, manual reboot button 7,8 centralized arrangement of major loop function pressing plate exist
On panel 2, input terminal 9, is arranged on the left side of panel 2, facilitates two-way electric power loop, load device by convenient operation and observation
The access of failure contact, remote control circuit；Outlet terminal 10 is arranged on the right side of panel 2, easy to picking out for outlet and remote signalling circuit.
Set respectively by switching relay layer 11, wiring layer 12, the layering of control module layer 13 inside device case 1, using unified outer hull shape
Into dual power supply comprehensive management apparatus, facilitate human-computer interaction.
Claims (5)
1. a kind of secondary equipment in power system dual power supply comprehensive management apparatus, including two two-way power supply of power supply one and power supply, K1~
Seven relays of K7, two voltage monitoring modules of KJ1 and KJ2, two switching switches of SAM1 and SAM2, KY1, KY2, KY3 tri-
Energy supply control module, a remote control module KT and power work indicator light, it is characterised in that
The power supply one passes sequentially through the relay K1 normal opened contacts, relay K2 normal opened contacts, is cut through two secondary contact isolation
Change；The power supply two passes sequentially through the relay K3 normal opened contacts, relay K4 normal opened contacts, is cut through two secondary contact isolation
Change, the power supply two after switching is connected with the power supply one after switching and is aggregated to form power supply all the way, then normally closed by the relay K7
Contact is connected with load；The relay K1 coils are connected to one both ends of power supply by relay K5 normally closed contacts；The relay
K2 coils are connected to power supply by the relay K3 normally closed contacts, relay K4 normally closed contacts, relay K1 normal opened contacts successively
One both ends；The relay K3 coils are connected to two liang of power supply by relay K1 normally closed contacts, relay K2 normally closed contacts successively
End；The relay K4 coils are connected to two liang of power supply by the relay K1 normally closed contacts, relay K3 normal opened contacts successively
End；The relay K5 coils are connected to two both ends of power supply through the relay K3 normal opened contacts, major loop function pressing plate SQ；Power supply
One work light RD is connected to one both ends of power supply through relay K1 normal opened contacts, relay K2 normal opened contacts, and the work of power supply two refers to
Show that lamp LD is connected to two both ends of power supply through relay K3 normal opened contacts, relay K4 normal opened contacts；
The energy supply control module KY1, which is connected to one both ends of power supply, to be responsible for providing working power, power supply control to voltage monitoring module KJ1
Molding block KY2, which is connected to two both ends of power supply, to be responsible for providing working power to voltage monitoring module KJ2；Power supply one and two two-way of power supply electricity
Source enters first by switching switch SAM1, SAM2 with chain function after device control cabinet, switching switch SAM1, SAM2
Normally closed contact is connected with the inlet wire port of voltage monitoring module KJ1, KJ2, and the normal opened contact of switching switch SAM1, SAM2 is parallel to
The outlet port of voltage monitoring module KJ1, KJ2, can be supervised by stirring switching switch SAM1, SAM2 selection input or exiting voltage
Survey functions of modules；Voltage monitoring module KJ1, KJ2 can adjust the monitoring definite value of voltage respectively, when supply voltage is higher than or low
When setting valve, voltage monitoring module KJ1, KJ2 auto power off circuit；
The energy supply control module KY3 is connected to the front end for collecting back loading power supply, is responsible for providing working power to remote control module KT；
The remote control contact YK of any measure and control device of the coil of the remote control module KT through substation, corresponding remote control pressing plate LP are connected to electricity
Source control module KY3 outgoing line sides, can start remote control module KT by Dispatching monitor and control system；Manual reboot button KA and remote control circuit
Parallel connection, also manually can start remote control module KT by reboot button KA, remote control module KT is powered, normally opened after adjusting delay to connect
Point closure；The normal opened contact of the coil of relay K7 through remote control module KT is connected to the front end of load power source, passes through relay
K7 action cut-out load powers realize that load device is restarted.
2. second power equipment dual power supply comprehensive management apparatus according to claim 1, it is characterised in that one He of power supply
Two two-way power supply of power supply can be two-way AC power or two-way DC power supply, or AC power and direct current all the way all the way
Source；The relay K1, the AC/DC property of relay K2 are consistent with one AC/DC property of power supply, the relay K3, after
Electric appliance K4, the AC/DC property of relay K5 are consistent with two AC/DC property of power supply, or seven relays of K1~K7 are selected
AC/DC general-purpose relay；Described energy supply control module KY1, KY2, KY3 are AC/DC common voltage modular converter, can be incited somebody to action
220V AC voltage or 220V DC voltages are converted to 5~12V DC voltage, for remote control module KT, voltage monitoring module
KJ1, KJ2 provide working power, are not required in addition introduce power supply.
3. second power equipment dual power supply comprehensive management apparatus according to claim 1 or claim 2, it is characterised in that the relay
Device K6 coils are connected with the plant failure contact KG of load equipment, form load faulty locked loop, relay K6 contacts with it is distant
The wire loop of cut-in relay K7 after control contact YK parallel connections, in load equipment internal fault, relay K7 is acted, and cut-out is negative
Charged source.
4. second power equipment dual power supply comprehensive management apparatus according to claim 1 or claim 2, it is characterised in that the relay
Device K1~K7 is connected in circuit by matched universal quick-speed plug base.
5. second power equipment dual power supply comprehensive management apparatus according to claim 1 or claim 2, it is characterised in that the power supply
One work light RD, two work light LD of power supply select the work light of display with voltage.
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| CN201721383797.3U CN207304150U (en) | 2017-10-25 | 2017-10-25 | Secondary equipment in power system dual power supply comprehensive management apparatus |
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| CN201721383797.3U CN207304150U (en) | 2017-10-25 | 2017-10-25 | Secondary equipment in power system dual power supply comprehensive management apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633371A (en) * | 2018-12-10 | 2019-04-16 | 国网重庆市电力公司忠县供电分公司 | A kind of line current detection method based on wireless communication |
| CN110021994A (en) * | 2019-05-27 | 2019-07-16 | 东方电气自动控制工程有限公司 | Digital electro-hydraulic controller DC power supply switching system |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633371A (en) * | 2018-12-10 | 2019-04-16 | 国网重庆市电力公司忠县供电分公司 | A kind of line current detection method based on wireless communication |
| CN110021994A (en) * | 2019-05-27 | 2019-07-16 | 东方电气自动控制工程有限公司 | Digital electro-hydraulic controller DC power supply switching system |
| CN110021994B (en) * | 2019-05-27 | 2024-02-20 | 东方电气自动控制工程有限公司 | DC power supply switching system of digital electrohydraulic controller |
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