CN105911470A - Pumped storage power station grid-connected indication circuit and failure detection method - Google Patents
Pumped storage power station grid-connected indication circuit and failure detection method Download PDFInfo
- Publication number
- CN105911470A CN105911470A CN201610507391.5A CN201610507391A CN105911470A CN 105911470 A CN105911470 A CN 105911470A CN 201610507391 A CN201610507391 A CN 201610507391A CN 105911470 A CN105911470 A CN 105911470A
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- Prior art keywords
- disconnecting link
- display lamp
- commutation
- commutation disconnecting
- relay
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
Abstract
The invention provides a pumped storage power station grid-connected indication circuit and a failure detection method. The indication circuit comprises a unit outlet switch position joint, five commutation disconnector position joints, ten relays and four indicator lights with different colors, wherein the unit outlet switch position joint is electrically connected with a unit outlet switch; the five commutation disconnector position joints are respectively and electrically connected with a three-phase five-level commutation disconnector; according to the unit outlet switch position joint and the five commutation disconnector position joints, the unit outlet switch and the three-phase five-level commutation disconnector are led out and connected in series with an indicator light circuit in a grid-connected manner by virtue of the relays; the indicator lights are used for indicating power generation working conditions and pumping working conditions. The failure detection method comprises the following steps: operating the unit outlet switch and the commutation disconnector, observing whether the indicator lights are lighted, and performing failure determination. The unit operating conditions are conveniently and accurately distinguished, the operating conditions of the unit outlet switch, the commutation disconnector and each relay can be determined by virtue of the indicator lights, equipment failure is timely discovered, and the working efficiency of the operation and maintenance staff is improved.
Description
Technical field
The present invention relates to a kind of grid-connected instruction loop for hydroenergy storage station and fault detection method, belong to electric station
Technical field.
Background technology
Set grid-connection display lamp is applied to the unit in various power station, understands and grasp current unit for on-the-spot operation maintenance personnel
Running status, carries out walkaround inspection work targetedly.Hydroenergy storage station unit is different from conventional hydropower unit, main
Have generating and the two kinds of operating conditions that draw water, by change in three-phase Pyatyi commutation disconnecting link Q9 five commutation disconnecting links (Q9A,
Q9B, Q9C, Q9AC and Q9CA) on off state change hydroenergy storage station unit operating condition, such as Fig. 2
Shown in, unit generation operating mode run time, machine set outlet switch Q0 close, generating direction commutation disconnecting link Q9A, Q9B,
Q9C closes, and draw water direction commutation disconnecting link Q9AC, Q9CA disconnect；When unit pumping operation mode runs, machine set outlet is opened
Closing Q0 to close, draw water direction commutation disconnecting link Q9AC, Q9B, Q9CA close, and generate electricity direction commutation disconnecting link Q9A, Q9C
Disconnect.At present, many hydroenergy storage station grid-connected instruction loops use series connection unit gate out switch auxiliary contact to judge unit
Running status, but single grid-connected display lamp can not accurately reflect the running status of unit, there is a problem in that 1.
Under electricity and pumping operation mode, machine set outlet switch all closes, and grid-connected display lamp can not intuitively reflect operating states of the units；2. machine
Group is overhauled or carries out machine set outlet switch checkout facility, during the machine set outlet that closes switch, can cause operation maintenance personnel false judgment
Current unit is in running status.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and provide a kind of hydroenergy storage station grid-connected instruction loop and
Fault detection method, reasonable in design, simple and practical, it is not only convenient for correctly distinguishing unit operation operating mode, moreover it is possible to by instruction
Loop differentiates machine set outlet switch auxiliary contact, commutation knife switch secondary contact, the ruuning situation of loop expansion relay, and
Time discovering device abnormal, improve operation maintenance personnel work efficiency.
Realizing the technical scheme that the object of the invention used is, a kind of hydroenergy storage station grid-connected instruction loop, including unit
Gate out switch position contact Q, 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA, 6 relays
Device 1KM, 2KM, 3KM, 4KM, 5KM and 6KM, and the different display lamp HY of 4 colors, HW,
HR and HG, machine set outlet position of the switch contact Q are electrically connected with the machine set outlet switch of hydroenergy storage station, 5
Commutation disconnecting link position contact is electrically connected with the three-phase Pyatyi commutation disconnecting link of hydroenergy storage station respectively, relay 1KM's
Coil is connected with machine set outlet position of the switch contact Q by wire, relay 2KM, 3KM, 4KM, 5KM and
The coil of 6KM is connected with 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA respectively by wire；
The normally opened contact of relay 1KM, 2KM, 3KM and 4KM and relay 5KM and 6KM normally-closed contact pass through
Wired in series and with display lamp HR be electrically connected with；The normally opened contact of relay 1KM, 3KM, 5KM and 6KM
And the normally-closed contact of relay 2KM and 4KM passes through wired in series and is electrically connected with display lamp HG；Relay
Normally opened contact is electrically connected with display lamp HY and HW respectively by another of 1KM and 3KM by wire.
Machine set outlet position of the switch contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA
Upper it is parallel with hand switch 1K, 2K, 3K, 4K, 5K and 6K respectively.
Also include relay 7KM, 8KM, 9KM and 10KM, relay 7KM, 8KM, 9KM and 10KM
Normally opened contact by wire display lamp drive circuit in series with display lamp HY, HW, HR and HG respectively, continue
The normally opened contact of electrical equipment 1KM, 2KM, 3KM and 4KM and relay 5KM and 6KM normally-closed contact are by leading
Line series connection and connect relay 9KM coil constitute generating instruction loop, relay 1KM, 3KM, 5KM and
The normally opened contact of 6KM and the normally-closed contact of relay 2KM and 4KM by wired in series and connect relay
The coil of 10KM constitutes instruction loop of drawing water, and normally opened contact is passed through wire respectively by another of relay 1KM and 3KM
Coils connected in series with relay 7KM and 8KM.
The present invention also correspondence provides a kind of fault detection method based on above-mentioned hydroenergy storage station grid-connected instruction loop, bag
Include following steps:
(1) hydroenergy storage station unit is set to stopped status, the control mode switching of machine set outlet switch convergence control cabinet
For existing；
(2) detection unit gate out switch Q0: Guan Bi machine set outlet switch Q0, if display lamp HY is bright, machine set outlet
Q0 is normal for switch；If display lamp HY does not works, machine set outlet switch Q0 fault, close hand switch 1K；
(3) detection commutation disconnecting link Q9B: Guan Bi commutation disconnecting link Q9B, if display lamp HW is bright, commutation disconnecting link Q9B
Normally；If display lamp HW does not works, commutation disconnecting link Q9B fault, close hand switch 3K；
(4) detection commutation disconnecting link Q9A and commutation disconnecting link Q9C:
(4-1) Guan Bi commutation disconnecting link Q9A and commutation disconnecting link Q9C, if display lamp HR is bright, commutation disconnecting link Q9A and changing
Phase disconnecting link Q9C is all normal, entrance step (4-2) if display lamp HR does not works；
(4-2) Guan Bi hand switch 4K, if display lamp HR is bright, commutation disconnecting link Q9A is normal, commutation disconnecting link Q9C
Fault, entrance step (4-3) if display lamp HR does not works；
(4-3) disconnecting hand switch 4K, Guan Bi hand switch 2K, if display lamp HR is bright, commutation disconnecting link Q9C is just
Often, commutation disconnecting link Q9A fault, if display lamp HR does not works, commutation disconnecting link Q9A and the equal fault of commutation disconnecting link Q9C；
(5) detection commutation disconnecting link Q9AC and commutation disconnecting link Q9CA:
(5-1) disconnecting commutation disconnecting link Q9A, commutation disconnecting link Q9C, hand switch 4K and hand switch 2K, Guan Bi is changed
Phase disconnecting link Q9AC and commutation disconnecting link Q9CA, if display lamp HG is bright, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA
All normal, entrance step (5-2) if display lamp HG does not works；
(5-2) Guan Bi hand switch 6K, if display lamp HG is bright, commutation disconnecting link Q9AC is normal, commutation disconnecting link Q9CA
Fault, entrance step (5-3) if display lamp HG does not works；
(5-3) hand switch 6K, Guan Bi hand switch 5K, if display lamp HG is bright, commutation disconnecting link Q9CA are disconnected
Normally, commutation disconnecting link Q9AC fault, if display lamp HG does not works, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is equal
Fault.
Step (1) checks after switching control mode each display lamp whether fault.
As shown from the above technical solution, the hydroenergy storage station grid-connected instruction loop that the present invention provides, opened by machine set outlet
Off position contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC, QCA are by hydroenergy storage station
Machine set outlet switch Q0 and 5 commutations disconnecting link Q9A, Q9B, Q9C, Q9AC of three-phase Pyatyi commutation disconnecting link and
Q9CA draws, and reflects unit respectively by 6 relays 1KM, 2KM, 3KM, 4KM, 5KM and 6KM
Gate out switch and the switch conditions of each commutation disconnecting link, arrange 4 colors different display lamp HY, HW, HR and
HG, wherein display lamp HR and HG is respectively used to indicate generating operation mode and pumping operation mode, and display lamp HY and HW uses
In breakdown judge；The coil of relay 1KM is electrically connected with machine set outlet position of the switch contact Q, and its normal opened contact divides
Not being serially connected with in the operating circuit of display lamp HR and HG, machine set outlet switch is main switch, and draw water during off-state storage
Can power station for shut down standby function, now display lamp HR and HG does not all work, relay 1KM, 2KM, 3KM and
The normally opened contact of 4KM and relay 5KM and 6KM normally-closed contact by wired in series and with display lamp HR electricity
Property connect, the normally opened contact of relay 1KM, 3KM, 5KM and 6KM and relay 2KM's and 4KM is normal
Closed contact is electrically connected with by wired in series and with display lamp HG, and when machine set outlet switch Q0 Guan Bi, generate electricity direction
Commutation disconnecting link Q9A, Q9B, Q9C close, and when draw water direction commutation disconnecting link Q9AC, Q9CA disconnect, display lamp
HR is bright, display lamp HG goes out, and instruction unit is generating operation mode；When machine set outlet switch Q0 Guan Bi, direction of drawing water is changed
Phase disconnecting link Q9AC, Q9B, Q9CA close, and when generating direction commutation disconnecting link Q9A, Q9C disconnect, display lamp
HG is bright, display lamp HR goes out, and instruction unit is pumping operation mode.
Normally opened contact is electrically connected with display lamp HY and HW respectively by another of relay 1KM and 3KM by wire
Connecing, display lamp HY and HW indicates respectively machine set outlet switch Q0 and the state of three-phase Pyatyi commutation disconnecting link Q9, when
During machine set outlet switch Q0 Guan Bi, display lamp HY is bright, and when commutation disconnecting link Q9B closes, display lamp HW is bright；Machine
Group is during generating operation mode plays machine, and first close generating direction commutation disconnecting link Q9B, and now display lamp HW is bright, grid-connected after
The machine set outlet that closes again switch Q0, now display lamp HY is bright, direction commutation disconnecting link Q9A and Q9C of Guan Bi generating subsequently,
Display lamp HR is bright, and in unit generation running, display lamp HW, HY, HR all keep normal bright state, if above-mentioned
During three display lamps situation about not working, then explanation corresponding machine set outlet switch Q0 or three-phase Pyatyi commutation disconnecting link occur
Q9 breaks down；During unit pumping operation mode plays machine, first close the direction commutation disconnecting link Q9B that draws water, now display lamp
HW is bright, grid-connected after close again machine set outlet switch Q0, now display lamp HY is bright, and Guan Bi is drawn water direction commutation subsequently
Disconnecting link Q9AC and Q9CA, display lamp HG is bright, and unit draws water in running, and display lamp HW, HY, HG are equal
Keep normal bright state, if situation about not working, then explanation corresponding machine set outlet switch occur in three display lamps in said process
Q0 or three-phase Pyatyi commutation disconnecting link Q9 breaks down；In unit generation operating mode stopping process, first disconnect machine set outlet switch
Q0, now display lamp HY, HR extinguishes, and is then turned off the direction commutation disconnecting link Q9B that generates electricity, and now display lamp HW puts out
Go out；In unit pumping operation mode stopping process, first disconnecting machine set outlet switch Q0, now display lamp HY, HG extinguishes,
Disconnecting the direction commutation disconnecting link Q9B that draws water again, now display lamp HW extinguishes；When compressor emergency shutdown is standby, all display lamps
All extinguish；When startup and shutdown of units machine process and operation, gate out switch, commutation disconnecting link, auxiliary contact and auxiliary reclay action are not
The instruction of corresponding display lamp normally all can be caused incorrect, intuitively reflected unit difference operating condition by display lamp, it is simple to fortune
Dimension personnel's specific aim carries out walkaround inspection work, can differentiate that machine set outlet switchs auxiliary contact, commutation disconnecting link by the present invention
Auxiliary contact, loop expand the ruuning situation of relay, and timely discovering device is abnormal.
The normally opened contact of relay 7KM, 8KM, 9KM and 10KM by wire respectively with display lamp HY, HW,
HR and HG display lamp in series drive circuit, display lamp HY, HW, HR and HG are by the 4 of additionally setting
Individual Control, by many docking points expansible display lamp indicating range of relay.
Owing to needing hydroenergy storage station unit in running order when display lamp works, when machine set outlet switch Q0 and
Needing during 5 commutation disconnecting link faults to shut down and could process, operation extremely inconvenience, the present invention connects in the machine set outlet position of the switch
Hand switch it is parallel with respectively on some Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA
1K, 2K, 3K, 4K, 5K and 6K so that unit can realize when test run mode machine set outlet is switched Q0
And the fault detect of 5 commutation disconnecting links.
The fault detection method that the present invention provides, first hydroenergy storage station unit is set to shut down shape before starting by detection
State, the control mode switching of machine set outlet switch convergence control cabinet is now, makes unit be at test run mode, passes through
Closing in sequence machine set outlet switch Q0, commutation disconnecting link Q9B, commutation disconnecting link Q9A, commutation disconnecting link Q9C, commutation disconnecting link
Q9AC and commutation disconnecting link Q9CA, and the light on and off observing corresponding display lamp judge current operation object whether fault, when
Maintained the conducting shape in loop by the hand switch that Guan Bi is connected in parallel when machine set outlet switch Q0 or commutation disconnecting link fault
State, simple to operate, the fault that machine set outlet switch Q0 or commutation disconnecting link exist can be found in advance, inciting somebody to action after failture evacuation
Unit commitment uses, because of machine set outlet switch Q0 or the possibility of the disconnecting link disorderly closedown that commutates when being substantially reduced unit operation,
And then reduce the maintenance cost of unit and because shutting down the loss caused.
Accompanying drawing explanation
The circuit diagram in the hydroenergy storage station grid-connected instruction loop that Fig. 1 provides for the present invention.
Fig. 2 is the commutation disconnecting link wiring diagram of hydroenergy storage station.
Fig. 3 is the circuit diagram of display lamp drive circuit.
Detailed description of the invention
Illustrating the present invention in detail with embodiment below in conjunction with the accompanying drawings, present disclosure is not limited to following reality
Execute example.
The hydroenergy storage station grid-connected instruction loop that the present invention provides, including machine set outlet position of the switch contact Q, 5 are changed
Phase disconnecting link position contact QA, QB, QC, QAC and QCA, 10 relay 1KM, 2KM, 3KM, 4KM,
5KM, 6KM, 7KM, 8KM, 9KM and 10KM, and the different display lamp HY of 4 colors, HW,
HR and HG, as it is shown in figure 1, the machine set outlet switch QO of machine set outlet position of the switch contact Q and hydroenergy storage station
Being electrically connected with, 5 commutation disconnecting link position contacts three-phase Pyatyi commutation disconnecting link Q9 with hydroenergy storage station respectively (specifically wraps
Include commutation disconnecting link Q9A, Q9B, Q9C, Q9AC and Q9CA) it is electrically connected with, the coil of relay 1KM is by leading
Line is connected with machine set outlet position of the switch contact Q, the coil of relay 2KM, 3KM, 4KM, 5KM and 6KM
Connected with 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA respectively by wire, machine set outlet
Parallel connection is distinguished on position of the switch contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA
There are hand switch 1K, 2K, 3K, 4K, 5K and 6K；See Fig. 3, relay 7KM, 8KM, 9KM and 10KM
Normally opened contact by wire display lamp drive circuit in series with display lamp HY, HW, HR and HG respectively；Continue
The normally opened contact of electrical equipment 1KM, 2KM, 3KM and 4KM and relay 5KM and 6KM normally-closed contact are by leading
Line series connection and connect relay 9KM coil constitute generating instruction loop, relay 1KM, 3KM, 5KM and
The normally opened contact of 6KM and the normally-closed contact of relay 2KM and 4KM by wired in series and connect relay
The coil of 10KM constitutes instruction loop of drawing water, and normally opened contact is passed through wire respectively by another of relay 1KM and 3KM
Coils connected in series with relay 7KM and 8KM.
The present invention also correspondence provides fault detection method based on above-mentioned hydroenergy storage station grid-connected instruction loop, including such as
Lower step:
(1) hydroenergy storage station unit is set to stopped status, the control mode switching of machine set outlet switch convergence control cabinet
For existing, check each display lamp whether fault；
(2) detection unit gate out switch Q0: Guan Bi machine set outlet switch Q0, if display lamp HY is bright, machine set outlet
Q0 is normal for switch；If display lamp HY does not works, machine set outlet switch Q0 fault, close hand switch 1K；
(3) detection commutation disconnecting link Q9B: Guan Bi commutation disconnecting link Q9B, if display lamp HW is bright, commutation disconnecting link Q9B
Normally；If display lamp HW does not works, commutation disconnecting link Q9B fault, close hand switch 3K；
(4) detection commutation disconnecting link Q9A and commutation disconnecting link Q9C:
(4-1) Guan Bi commutation disconnecting link Q9A and commutation disconnecting link Q9C, if display lamp HR is bright, commutation disconnecting link Q9A and changing
Phase disconnecting link Q9C is all normal, entrance step (4-2) if display lamp HR does not works；
(4-2) Guan Bi hand switch 4K, if display lamp HR is bright, commutation disconnecting link Q9A is normal, commutation disconnecting link Q9C
Fault, entrance step (4-3) if display lamp HR does not works；
(4-3) disconnecting hand switch 4K, Guan Bi hand switch 2K, if display lamp HR is bright, commutation disconnecting link Q9C is just
Often, commutation disconnecting link Q9A fault, if display lamp HR does not works, commutation disconnecting link Q9A and the equal fault of commutation disconnecting link Q9C；
(5) detection commutation disconnecting link Q9AC and commutation disconnecting link Q9CA:
(5-1) disconnecting commutation disconnecting link Q9A, commutation disconnecting link Q9C, hand switch 4K and hand switch 2K, Guan Bi is changed
Phase disconnecting link Q9AC and commutation disconnecting link Q9CA, if display lamp HG is bright, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA
All normal, entrance step (5-2) if display lamp HG does not works；
(5-2) Guan Bi hand switch 6K, if display lamp HG is bright, commutation disconnecting link Q9AC is normal, commutation disconnecting link Q9CA
Fault, entrance step (5-3) if display lamp HG does not works；
(5-3) hand switch 6K, Guan Bi hand switch 5K, if display lamp HG is bright, commutation disconnecting link Q9CA are disconnected
Normally, commutation disconnecting link Q9AC fault, if display lamp HG does not works, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is equal
Fault.
In actually used, Generator Outlet Switchgear (machine set outlet switch Q0) and 5 electromotor commutation disconnecting links are according to Fig. 2
Shown Generator Outlet Switchgear and commutation disconnecting link signal circuit carry out wiring, draw from machine set outlet switch Q0 convergence control cabinet
Zero line N and live wire L at the set grid-connection display lamp in collector ring ceiling portion, display lamp HY (yellow), HW (white),
HR (red) and the HG (green) wiring diagram as shown in Fig. 1 and Fig. 3 carry out wiring；When compressor emergency shutdown is standby, all
Display lamp all extinguishes.
During unit generation operating mode plays machine, generating direction commutation disconnecting link Q9A, Q9B, Q9C close, direction commutation of drawing water
Disconnecting link Q9AC, Q9CA disconnect, commutation disconnecting link display lamp HW (white) brightens, grid-connected after close again machine set outlet switch
Q0, now machine set outlet switch indication light HY (yellow) brightens, and generating operation mode display lamp HR (red) brightens；Machine
During group generator operation, display lamp HW (white), HY (yellow), HR (red) all keep normal bright state.
During unit pumping operation mode plays machine, draw water direction commutation disconnecting link Q9AC, Q9B, Q9CA close, and generating direction is changed
Phase disconnecting link Q9A, Q9C disconnect, commutation disconnecting link display lamp HW (white) brightens, grid-connected after close again machine set outlet switch
Q0, machine set outlet switch indication light HY (yellow) brightens, and pumping operation mode display lamp HG (green) brightens；Unit is taken out
During water running, display lamp HW (white), HY (yellow), HG (green) all keep normal bright state.
In unit generation operating mode stopping process, first disconnecting machine set outlet switch Q0, now display lamp HY (yellow), HR are (red
Color) extinguish, it is then turned off generate electricity direction commutation disconnecting link Q9A, Q9B, Q9C, now display lamp HW (white) extinguishes.
In unit pumping operation mode stopping process, first disconnecting machine set outlet switch QO, now display lamp HY (yellow), HG are (green
Color) extinguish, then disconnect draw water direction commutation disconnecting link Q9AC, Q9B, Q9CA, now display lamp HW (white) extinguishes.
Claims (5)
1. a hydroenergy storage station grid-connected instruction loop, it is characterised in that: include machine set outlet position of the switch contact Q,
5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA, 6 relay 1KM, 2KM, 3KM,
4KM, 5KM and 6KM, and display lamp HY, HW, HR and HG that 4 colors are different, machine set outlet is opened
The machine set outlet switch of off position contact Q and hydroenergy storage station is electrically connected with, 5 commutation disconnecting link position contacts respectively with
The three-phase Pyatyi commutation disconnecting link of hydroenergy storage station is electrically connected with, and the coil of relay 1KM passes through wire and machine set outlet
Position of the switch contact Q connects, and the coil of relay 2KM, 3KM, 4KM, 5KM and 6KM is by wire respectively
Connect with 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA；Relay 1KM, 2KM, 3KM
With the normally opened contact of 4KM and relay 5KM and 6KM normally-closed contact by wired in series and with display lamp HR
It is electrically connected with；The normally opened contact of relay 1KM, 3KM, 5KM and 6KM and relay 2KM's and 4KM
Normally-closed contact is electrically connected with by wired in series and with display lamp HG；Another of relay 1KM and 3KM is to normally opened
Contact is electrically connected with display lamp HY and HW respectively by wire.
Hydroenergy storage station the most according to claim 1 grid-connected instruction loop, it is characterised in that: machine set outlet is opened
It is parallel with respectively on off position contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA
Hand switch 1K, 2K, 3K, 4K, 5K and 6K.
Hydroenergy storage station the most according to claim 1 grid-connected instruction loop, it is characterised in that: also include relay
Device 7KM, 8KM, 9KM and 10KM, the normally opened contact of relay 7KM, 8KM, 9KM and 10KM passes through
Wire display lamp drive circuit in series with display lamp HY, HW, HR and HG respectively, relay 1KM, 2KM,
The normally opened contact of 3KM and 4KM and relay 5KM and 6KM normally-closed contact by wired in series and connect relay
The coil of device 9KM constitutes generating instruction loop, the normally opened contact of relay 1KM, 3KM, 5KM and 6KM and
The normally-closed contact of relay 2KM and 4KM by wired in series and connect relay 10KM coil constitute draw water
Instruction loop, relay 1KM and 3KM another to normally opened contact by wire respectively with relay 7KM and 8KM
Coils connected in series.
4. a fault detection method based on the grid-connected instruction of hydroenergy storage station described in claim 2 loop, its feature
It is, comprises the steps:
(1) hydroenergy storage station unit is set to stopped status, the control mode switching of machine set outlet switch convergence control cabinet
For existing；
(2) detection unit gate out switch Q0: Guan Bi machine set outlet switch Q0, if display lamp HY is bright, machine set outlet
Q0 is normal for switch；If display lamp HY does not works, machine set outlet switch Q0 fault, close hand switch 1K；
(3) detection commutation disconnecting link Q9B: Guan Bi commutation disconnecting link Q9B, if display lamp HW is bright, commutation disconnecting link Q9B
Normally；If display lamp HW does not works, commutation disconnecting link Q9B fault, close hand switch 3K；
(4) detection commutation disconnecting link Q9A and commutation disconnecting link Q9C:
(4-1) Guan Bi commutation disconnecting link Q9A and commutation disconnecting link Q9C, if display lamp HR is bright, commutation disconnecting link Q9A and changing
Phase disconnecting link Q9C is all normal, entrance step (4-2) if display lamp HR does not works；
(4-2) Guan Bi hand switch 4K, if display lamp HR is bright, commutation disconnecting link Q9A is normal, commutation disconnecting link Q9C
Fault, entrance step (4-3) if display lamp HR does not works；
(4-3) disconnecting hand switch 4K, Guan Bi hand switch 2K, if display lamp HR is bright, commutation disconnecting link Q9C is just
Often, commutation disconnecting link Q9A fault, if display lamp HR does not works, commutation disconnecting link Q9A and the equal fault of commutation disconnecting link Q9C；
(5) detection commutation disconnecting link Q9AC and commutation disconnecting link Q9CA:
(5-1) disconnecting commutation disconnecting link Q9A, commutation disconnecting link Q9C, hand switch 4K and hand switch 2K, Guan Bi is changed
Phase disconnecting link Q9AC and commutation disconnecting link Q9CA, if display lamp HG is bright, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA
All normal, entrance step (5-2) if display lamp HG does not works；
(5-2) Guan Bi hand switch 6K, if display lamp HG is bright, commutation disconnecting link Q9AC is normal, commutation disconnecting link Q9CA
Fault, entrance step (5-3) if display lamp HG does not works；
(5-3) hand switch 6K, Guan Bi hand switch 5K, if display lamp HG is bright, commutation disconnecting link Q9CA are disconnected
Normally, commutation disconnecting link Q9AC fault, if display lamp HG does not works, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is equal
Fault.
Fault detection method the most according to claim 4, it is characterised in that: switching control mode in step (1)
The each display lamp of rear inspection whether fault.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610507391.5A CN105911470B (en) | 2016-06-30 | 2016-06-30 | A kind of grid-connected instruction circuit of hydroenergy storage station and fault detection method |
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|---|---|---|---|
| CN201610507391.5A CN105911470B (en) | 2016-06-30 | 2016-06-30 | A kind of grid-connected instruction circuit of hydroenergy storage station and fault detection method |
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| CN105911470B CN105911470B (en) | 2019-03-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108873832A (en) * | 2018-06-07 | 2018-11-23 | 大唐韩城第二发电有限责任公司 | A kind of flogic system and device of generator failure intertripping stator cooling water pump |
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| CN107846033A (en) * | 2017-11-14 | 2018-03-27 | 广东蓄能发电有限公司 | A kind of work condition judging and protection with anti-error function throw annealing method |
| CN107846033B (en) * | 2017-11-14 | 2020-04-28 | 广东蓄能发电有限公司 | Working condition judging and protection switching-on and switching-off method with error prevention function |
| CN108873832A (en) * | 2018-06-07 | 2018-11-23 | 大唐韩城第二发电有限责任公司 | A kind of flogic system and device of generator failure intertripping stator cooling water pump |
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|---|---|
| CN105911470B (en) | 2019-03-01 |
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