CN105911470B - A kind of grid-connected instruction circuit of hydroenergy storage station and fault detection method - Google Patents
A kind of grid-connected instruction circuit of hydroenergy storage station and fault detection method Download PDFInfo
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- CN105911470B CN105911470B CN201610507391.5A CN201610507391A CN105911470B CN 105911470 B CN105911470 B CN 105911470B CN 201610507391 A CN201610507391 A CN 201610507391A CN 105911470 B CN105911470 B CN 105911470B
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- indicator light
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- relay
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 239000003086 colorant Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000010248 power generation Methods 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- 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 present invention provides a kind of grid-connected instruction circuit of hydroenergy storage station and fault detection methods, including machine set outlet position of the switch contact, 5 commutation disconnecting link position contacts, 10 relays and the different indicator light of 4 colors, machine set outlet position of the switch contact and machine set outlet switch are electrically connected, 5 commutation disconnecting link position contacts are electrically connected with three-phase Pyatyi commutation disconnecting link respectively, machine set outlet switch and three-phase Pyatyi commutation disconnecting link are drawn by machine set outlet position of the switch contact and 5 commutation disconnecting link position contacts and grid-connected pilot lamp loop is sealed in by relay, indicator light indicates generating operation mode and pumping operation mode, fault detection method is by operation machine set outlet switch and commutation disconnecting link and viewing lamp light on and off carry out breakdown judge, the present invention is not only convenient for correctly distinguishing unit operating condition, it can also be sentenced by indicator light The operating condition of other machine set outlet switch, commutation disconnecting link and each relay, timely discovering device is abnormal, improves operation maintenance personnel working efficiency.
Description
Technical field
The present invention relates to a kind of for the grid-connected instruction circuit of hydroenergy storage station and fault detection method, belongs to power generation
It stands technical field.
Background technique
Set grid-connection indicator light is applied to the unit in various power stations, understands and grasp current unit with operation maintenance personnel on site
Operating status, targetedly carry out walkaround inspection work.Hydroenergy storage station unit is different from conventional hydropower unit, mainly
Have power generation and the two kinds of operating conditions that draw water, by change five commutation disconnecting links in three-phase Pyatyi commutation disconnecting link Q9 (Q9A, Q9B,
Q9C, Q9AC and Q9CA) switch state change hydroenergy storage station unit operating condition, as shown in Fig. 2, unit generation work
When condition is run, machine set outlet switch Q0 closes, and power generation direction commutation disconnecting link Q9A, Q9B, Q9C close, and draw water direction commutation disconnecting link
Q9AC, Q9CA are disconnected；When unit pumping operation mode is run, machine set outlet switch Q0 closes, the direction commutation disconnecting link Q9AC, Q9B that draws water,
Q9CA closes, and power generation direction commutation disconnecting link Q9A, Q9C are disconnected.Currently, many grid-connected instruction circuits of hydroenergy storage station are using string
Online group of gate out switch auxiliary contact judges operating states of the units, but single grid-connected indicator light not can accurately reflect unit
Operating status, there are following problems: under 1. power generations and pumping operation mode, machine set outlet switch closes, and grid-connected indicator light cannot be straight
See reflection operating states of the units；2. unit maintenance carries out machine set outlet switch checkout facility, when closing machine set outlet switch, meeting
Cause the current unit of operation maintenance personnel false judgment in operating 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 grid-connected instruction circuit of hydroenergy storage station
And fault detection method, design is rationally, simple and practical, is not only convenient for correctly distinguishing unit operating condition, moreover it is possible to by indicating back
Road differentiates the operating condition of machine set outlet switch auxiliary contact, commutation knife switch secondary contact, circuit expansion relay, finds in time
Unit exception improves operation maintenance personnel working efficiency.
Realize that technical solution used by the object of the invention is a kind of grid-connected instruction circuit of hydroenergy storage station, including machine
Group gate out switch position contact Q, 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA, 6 relay 1KM, 2KM,
3KM, 4KM, 5KM and 6KM and 4 colors different indicator light HY, HW, HR and HG, machine set outlet position of the switch contact Q with
The machine set outlet of hydroenergy storage station, which switchs, to be electrically connected, 5 commutation disconnecting link position contacts respectively with hydroenergy storage station three
Phase Pyatyi commutation disconnecting link is electrically connected, and the coil of relay 1KM is connected by conducting wire with machine set outlet position of the switch contact Q, after
The coil of electric appliance 2KM, 3KM, 4KM, 5KM and 6KM by conducting wire respectively with 5 commutation disconnecting link position contact QA, QB, QC, QAC and
QCA series connection；The normally opened contact and relay 5KM and 6KM normally-closed contact of relay 1KM, 2KM, 3KM and 4KM pass through conducting wire string
Join and is electrically connected with indicator light HR；The normally opened contact of relay 1KM, 3KM, 5KM and 6KM and relay 2KM's and 4KM
Normally-closed contact is connected by conducting wire and is electrically connected with indicator light HG；Another pair normally opened contact of relay 1KM and 3KM pass through
Conducting wire is electrically connected with indicator light HY and HW respectively.
Distinguish simultaneously on machine set outlet position of the switch contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA
It is associated with manual switch 1K, 2K, 3K, 4K, 5K and 6K.
It further include relay 7KM, 8KM, 9KM and 10KM, the normally opened contact of relay 7KM, 8KM, 9KM and 10KM are by leading
For line respectively with indicator light HY, HW, HR and HG indicator light driving circuit in series, relay 1KM, 2KM, 3KM and 4KM's is normally opened
Contact and relay 5KM and 6KM normally-closed contact are connected by conducting wire and connect the coil composition power generation instruction of relay 9KM
Circuit, the normally opened contact of relay 1KM, 3KM, 5KM and 6KM and the normally-closed contact of relay 2KM and 4KM are connected by conducting wire
And the coil composition for connecting relay 10KM, which is drawn water, indicates circuit, and another pair normally opened contact of relay 1KM and 3KM are by leading
Line is connected with the coil of relay 7KM and 8KM respectively.
The present invention is also corresponding to provide a kind of fault detection method based on the grid-connected instruction circuit of above-mentioned hydroenergy storage station,
Include the following steps:
(1) shutdown status is set by hydroenergy storage station unit, machine set outlet switchs the control mode switching of convergence control cabinet
For existingly；
(2) unit gate out switch Q0 is detected: closure machine set outlet switch Q0, the machine set outlet switch Q0 if indicator light HY is bright
Normally；The machine set outlet switch Q0 failure if indicator light HY does not work is closed manual switch 1K；
(3) detect commutation disconnecting link Q9B: closure commutation disconnecting link Q9B, commutation disconnecting link Q9B is normal if indicator light HW is bright；If referring to
Show that lamp HW does not work then commutation disconnecting link Q9B failure, is closed manual switch 3K；
(4) commutation disconnecting link Q9A and commutation disconnecting link Q9C is detected:
(4-1) is closed commutation disconnecting link Q9A and commutation disconnecting link Q9C, commutation disconnecting link Q9A and commutation disconnecting link if indicator light HR is bright
Q9C is normal, if indicator light HR, which does not work, enters step (4-2)；
(4-2) is closed manual switch 4K, and commutation disconnecting link Q9A is normal if indicator light HR is bright, commutation disconnecting link Q9C failure, if
Indicator light HR, which does not work, enters step (4-3)；
(4-3) disconnects manual switch 4K, closure manual switch 2K, and commutation disconnecting link Q9C is normal if indicator light HR is bright, commutation
Disconnecting link Q9A failure, commutation disconnecting link Q9A and the equal failure of commutation disconnecting link Q9C if indicator light HR does not work；
(5) commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is detected:
(5-1) disconnects commutation disconnecting link Q9A, commutation disconnecting link Q9C, manual switch 4K and manual switch 2K, is closed commutation disconnecting link
Q9AC and commutation disconnecting link Q9CA, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA are normal if indicator light HG is bright, if indicator light HG
It does not work and enters step (5-2)；
(5-2) is closed manual switch 6K, and commutation disconnecting link Q9AC is normal if indicator light HG is bright, commutation disconnecting link Q9CA failure,
If indicator light HG, which does not work, enters step (5-3)；
(5-3) disconnects manual switch 6K, closure manual switch 5K, and commutation disconnecting link Q9CA is normal if indicator light HG is bright, changes
Phase disconnecting link Q9AC failure, commutation disconnecting link Q9AC and the equal failure of commutation disconnecting link Q9CA if indicator light HG does not work.
Checked after switching control mode in step (1) each indicator light whether failure.
As shown from the above technical solution, the grid-connected instruction circuit of hydroenergy storage station provided by the invention, passes through machine set outlet
Position of the switch contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC, QCA open the machine set outlet of hydroenergy storage station
5 commutation disconnecting links Q9A, Q9B, Q9C, Q9AC and Q9CA for closing Q0 and three-phase Pyatyi commutation disconnecting link are drawn, and pass through 6 relays
1KM, 2KM, 3KM, 4KM, 5KM and 6KM reflect the switch conditions of machine set outlet switch and each commutation disconnecting link respectively, are arranged 4
Color different indicator light HY, HW, HR and HG, wherein indicator light HR and HG is respectively used to instruction generating operation mode and pumping operation mode,
Indicator light HY and HW are used for breakdown judge；The coil and machine set outlet position of the switch contact Q of relay 1KM is electrically connected, often
It opens contact to be serially connected with respectively in the operating circuit of indicator light HR and HG, machine set outlet switch is master switch, and when off-state draws water
Storage station is to shut down standby function, and indicator light HR and HG do not work at this time, the normally opened touching of relay 1KM, 2KM, 3KM and 4KM
Point and relay 5KM and 6KM normally-closed contact are connected by conducting wire and are electrically connected with indicator light HR, relay 1KM, 3KM,
The normally opened contact of 5KM and 6KM and the normally-closed contact of relay 2KM and 4KM are by conducting wire series connection and electrical with indicator light HG
Connection, when machine set outlet switch Q0 is closed, power generation direction commutation disconnecting link Q9A, Q9B, Q9C are closed, and the direction commutation disconnecting link that draws water
When Q9AC, Q9CA are disconnected, indicator light HR is bright, indicator light HG goes out, and instruction unit is generating operation mode；When machine set outlet switch Q0 is closed
It closes, direction commutation disconnecting link Q9AC, Q9B, Q9CA closure of drawing water, and when power generation direction commutation disconnecting link Q9A, Q9C disconnection, indicator light HG
Bright, indicator light HR goes out, and instruction unit is pumping operation mode.
Another pair normally opened contact of relay 1KM and 3KM are electrically connected with indicator light HY and HW respectively by conducting wire, instruction
Lamp HY and HW indicate respectively the state of machine set outlet switch Q0 and three-phase Pyatyi commutation disconnecting link Q9, when machine set outlet switch Q0 is closed
When, indicator light HY is bright, and when commutation disconnecting link Q9B closure, indicator light HW is bright；During unit generation operating condition plays machine, hair is first closed
Electric direction commutation disconnecting link Q9B, indicator light HW is bright at this time, closes machine set outlet switch Q0 after grid-connected again, and indicator light HY is bright at this time, with
Closure power generation direction commutation disconnecting link Q9A and Q9C afterwards, indicator light HR is bright, and in unit generation operational process, indicator light HW, HY, HR are equal
Holding is always on state, if the case where three indicator lights do not work in the above process, illustrate corresponding machine set outlet switch Q0 or
Three-phase Pyatyi commutation disconnecting link Q9 breaks down；During unit pumping operation mode plays machine, the direction commutation disconnecting link Q9B that draws water first is closed,
Indicator light HW is bright at this time, closes machine set outlet switch Q0 after grid-connected again, and indicator light HY is bright at this time, is then closed direction commutation of drawing water
Disconnecting link Q9AC and Q9CA, indicator light HG is bright, and unit draws water in operational process, and indicator light HW, HY, HG keep being always on state, if
The case where three indicator lights do not work in the above process then illustrates corresponding machine set outlet switch Q0 or three-phase Pyatyi commutation disconnecting link
Q9 breaks down；In unit generation operating condition stopping process, machine set outlet switch Q0 is first disconnected, indicator light HY, HR extinguishes at this time, so
Power generation direction commutation disconnecting link Q9B is disconnected afterwards, and indicator light HW extinguishes at this time；In unit pumping operation mode stopping process, unit is first disconnected
Gate out switch Q0, indicator light HY, HG extinguishes at this time, then disconnects the direction commutation disconnecting link Q9B that draws water, and indicator light HW extinguishes at this time；Machine
When group shuts down spare, all indicator lights extinguish；Gate out switch, commutation disconnecting link, auxiliary connect when startup and shutdown of units machine process and operation
Point and intermediate relay movement it is abnormal to will lead to the instruction of corresponding indicator light incorrect, unit is intuitively reflected not by indicator light
Same operating condition carries out walkaround inspection work convenient for operation maintenance personnel specific aim, can differentiate that machine set outlet switch is auxiliary through the invention
The operating condition of adjuvant grafting point, commutation knife switch secondary contact, circuit expansion relay, timely discovering device are abnormal.
The normally opened contact of relay 7KM, 8KM, 9KM and 10KM are connected with indicator light HY, HW, HR and HG respectively by conducting wire
Indicator light driving circuit is constituted, indicator light HY, HW, HR and HG are controlled by 4 relays set in addition, pass through relay
The multipair expansible indicator light indicating range of contact.
Due to needing hydroenergy storage station unit in running order when indicator light work, as machine set outlet switch Q0 and
It needs to shut down and could handle when 5 commutation disconnecting link failures, operation is extremely inconvenient, and the present invention is in machine set outlet position of the switch contact Q
And be parallel with respectively on 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA manual switch 1K, 2K, 3K, 4K, 5K and
6K, so that unit can realize the fault detection to machine set outlet switch Q0 and 5 commutation disconnecting links in test run mode.
Fault detection method provided by the invention, detection first set hydroenergy storage station unit to before starting to shut down shape
The control mode of state, machine set outlet switch convergence control cabinet is switched to existingly, so that unit is at test run mode, is passed through sequence
It is closed 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 for observing corresponding indicator light judge current operation object whether failure, when machine set outlet switch Q0 or commutation
The on state in circuit is maintained when disconnecting link failure by being closed manual switch connected in parallel, it is easy to operate, machine can be found in advance
Group gate out switch Q0 or the failure existing for disconnecting link that commutates, use after troubleshooting by unit commitment, substantially reduce unit operation
When because machine set outlet switch Q0 or commutate disconnecting link disorderly closedown possibility, and then reduce unit maintenance cost and because shutdown is made
At loss.
Detailed description of the invention
Fig. 1 is the circuit diagram in the grid-connected instruction circuit of hydroenergy storage station provided by the invention.
Fig. 2 is the commutation disconnecting link wiring diagram of hydroenergy storage station.
Fig. 3 is the circuit diagram of indicator light driving circuit.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, the contents of the present invention are not limited to following
Embodiment.
The grid-connected instruction circuit of hydroenergy storage station provided by the invention, 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 relays 1KM, 2KM, 3KM, 4KM, 5KM, 6KM, 7KM, 8KM, 9KM
And indicator light HY, HW, HR and HG that 10KM and 4 color is different, as shown in Figure 1, machine set outlet position of the switch contact Q with
The machine set outlet switch QO of hydroenergy storage station is electrically connected, 5 commutation disconnecting link position contacts respectively with hydroenergy storage station
Three-phase Pyatyi commutation disconnecting link Q9 (specifically including commutation disconnecting link Q9A, Q9B, Q9C, Q9AC and Q9CA) is electrically connected, relay 1KM
Coil connected with machine set outlet position of the switch contact Q by conducting wire, the coil of relay 2KM, 3KM, 4KM, 5KM and 6KM lead to
Conducting wire is crossed to connect with 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA respectively, machine set outlet position of the switch contact Q with
And it is parallel with manual switch 1K, 2K, 3K, 4K, 5K and 6K respectively on 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA；
Referring to Fig. 3, the normally opened contact of relay 7KM, 8KM, 9KM and 10KM are connected with indicator light HY, HW, HR and HG respectively by conducting wire
Constitute indicator light driving circuit；The normally opened contact and relay 5KM and 6KM normally-closed contact of relay 1KM, 2KM, 3KM and 4KM
It is connected by conducting wire and the coil for connecting relay 9KM constitutes power generation instruction circuit, relay 1KM, 3KM, 5KM and 6KM's
The normally-closed contact of normally opened contact and relay 2KM and 4KM are connected by conducting wire and connect the coil composition of relay 10KM
It draws water and indicates circuit, another pair normally opened contact of relay 1KM and 3KM pass through the conducting wire coil with relay 7KM and 8KM respectively
Series connection.
The present invention is also corresponding to be provided based on the grid-connected fault detection method for indicating circuit of above-mentioned hydroenergy storage station, including
Following steps:
(1) shutdown status is set by hydroenergy storage station unit, machine set outlet switchs the control mode switching of convergence control cabinet
For existingly, check each indicator light whether failure；
(2) unit gate out switch Q0 is detected: closure machine set outlet switch Q0, the machine set outlet switch Q0 if indicator light HY is bright
Normally；The machine set outlet switch Q0 failure if indicator light HY does not work is closed manual switch 1K；
(3) detect commutation disconnecting link Q9B: closure commutation disconnecting link Q9B, commutation disconnecting link Q9B is normal if indicator light HW is bright；If referring to
Show that lamp HW does not work then commutation disconnecting link Q9B failure, is closed manual switch 3K；
(4) commutation disconnecting link Q9A and commutation disconnecting link Q9C is detected:
(4-1) is closed commutation disconnecting link Q9A and commutation disconnecting link Q9C, commutation disconnecting link Q9A and commutation disconnecting link if indicator light HR is bright
Q9C is normal, if indicator light HR, which does not work, enters step (4-2)；
(4-2) is closed manual switch 4K, and commutation disconnecting link Q9A is normal if indicator light HR is bright, commutation disconnecting link Q9C failure, if
Indicator light HR, which does not work, enters step (4-3)；
(4-3) disconnects manual switch 4K, closure manual switch 2K, and commutation disconnecting link Q9C is normal if indicator light HR is bright, commutation
Disconnecting link Q9A failure, commutation disconnecting link Q9A and the equal failure of commutation disconnecting link Q9C if indicator light HR does not work；
(5) commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is detected:
(5-1) disconnects commutation disconnecting link Q9A, commutation disconnecting link Q9C, manual switch 4K and manual switch 2K, is closed commutation disconnecting link
Q9AC and commutation disconnecting link Q9CA, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA are normal if indicator light HG is bright, if indicator light HG
It does not work and enters step (5-2)；
(5-2) is closed manual switch 6K, and commutation disconnecting link Q9AC is normal if indicator light HG is bright, commutation disconnecting link Q9CA failure,
If indicator light HG, which does not work, enters step (5-3)；
(5-3) disconnects manual switch 6K, closure manual switch 5K, and commutation disconnecting link Q9CA is normal if indicator light HG is bright, changes
Phase disconnecting link Q9AC failure, commutation disconnecting link Q9AC and the equal failure of commutation disconnecting link Q9CA if indicator light HG does not work.
In actual use, Generator Outlet Switchgear (machine set outlet switch Q0) and 5 generator commutation disconnecting links are according to Fig. 2 institute
The Generator Outlet Switchgear and commutation disconnecting link signal circuit shown carries out wiring, draws zero curve N from unit gate out switch Q0 convergence control cabinet
At the set grid-connection indicator light of firewire L to collector ring ceiling portion, indicator light HY (yellow), HW (white), HR (red) and HG
The wiring diagram of (green) as shown in Fig. 1 and Fig. 3 carries out wiring；When compressor emergency shutdown is spare, all indicator lights extinguish.
During unit generation operating condition plays machine, power generation direction commutation disconnecting link Q9A, Q9B, Q9C close, and draw water direction commutation knife
Lock Q9AC, Q9CA are disconnected, and commutation disconnecting link indicator light HW (white) brightens, and close machine set outlet switch Q0, this opportunity after grid-connected again
Group gate out switch indicator light HY (yellow) brightens, and generating operation mode indicator light HR (red) brightens；In unit generation operational process, refer to
Show that lamp HW (white), HY (yellow), HR (red) keep being always on state.
During unit pumping operation mode plays machine, draw water direction commutation disconnecting link Q9AC, Q9B, Q9CA close, and generate electricity direction commutation
Disconnecting link Q9A, Q9C are disconnected, and commutation disconnecting link indicator light HW (white) brightens, and close machine set outlet switch Q0 after grid-connected again, unit goes out
Mouth switch indication light HY (yellow) brightens, and pumping operation mode indicator light HG (green) brightens；Unit draws water in operational process, indicator light
HW (white), HY (yellow), HG (green) keep being always on state.
In unit generation operating condition stopping process, machine set outlet switch Q0 is first disconnected, indicator light HY (yellow), HR are (red at this time
Color) extinguish, it is then turned off power generation direction commutation disconnecting link Q9A, Q9B, Q9C, indicator light HW (white) extinguishes at this time.
In unit pumping operation mode stopping process, machine set outlet switch QO is first disconnected, indicator light HY (yellow), HG are (green at this time
Color) extinguish, then draw water direction commutation disconnecting link Q9AC, Q9B, Q9CA are disconnected, indicator light HW (white) extinguishes at this time.
Claims (5)
1. a kind of grid-connected instruction circuit of hydroenergy storage station, it is characterised in that: including machine set outlet position of the switch contact Q, 5 are changed
Phase disconnecting link position contact QA, QB, QC, QAC and QCA, 6 relays 1KM, 2KM, 3KM, 4KM, 5KM and 6KM and 4 colors
Different indicator light HY, HW, HR and HG, machine set outlet position of the switch contact Q and the machine set outlet of hydroenergy storage station switch electricity
Property connection, 5 commutation disconnecting link position contacts respectively with the three-phase Pyatyi commutation disconnecting link of hydroenergy storage station be electrically connected, relay
The coil of 1KM is connected by conducting wire with machine set outlet position of the switch contact Q, the coil of relay 2KM, 3KM, 4KM, 5KM and 6KM
It is successively connected with 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA by conducting wire；Relay 1KM, 2KM, 3KM and 4KM
Normally opened contact and relay 5KM and 6KM normally-closed contact by conducting wire connect and with indicator light HR be electrically connected；Relay
The normally-closed contact of the normally opened contact of 1KM, 3KM, 5KM and 6KM and relay 2KM and 4KM connected by conducting wire and with instruction
Lamp HG is electrically connected；Another pair normally opened contact of relay 1KM and 3KM are successively electrically connected with indicator light HY and HW by conducting wire
It connects.
2. the grid-connected instruction circuit of hydroenergy storage station according to claim 1, it is characterised in that: the machine set outlet position of the switch
Successively be parallel on contact Q and 5 commutation disconnecting link positions contact QA, QB, QC, QAC and QCA manual switch 1K, 2K, 3K, 4K,
5K and 6K.
3. the grid-connected instruction circuit of hydroenergy storage station according to claim 1, it is characterised in that: further include relay 7KM,
8KM, 9KM and 10KM, the normally opened contact of relay 7KM, 8KM, 9KM and 10KM by conducting wire successively with indicator light HY, HW, HR and
HG indicator light driving circuit in series, the normally opened contact and relay 5KM and 6KM of relay 1KM, 2KM, 3KM and 4KM are normal
Closed contact pass through conducting wire connect and connect relay 9KM coil constitute power generation instruction circuit, relay 1KM, 3KM, 5KM and
The normally opened contact of 6KM and the normally-closed contact of relay 2KM and 4KM are connected by conducting wire and connect the coil of relay 10KM
Composition, which is drawn water, indicates circuit, another pair normally opened contact of relay 1KM and 3KM by conducting wire successively with relay 7KM and 8KM
Coil series connection.
4. a kind of fault detection method based on the grid-connected instruction circuit of hydroenergy storage station described in claim 2, which is characterized in that
Include the following steps:
(1) shutdown status is set by hydroenergy storage station unit, the control mode of machine set outlet switch convergence control cabinet is switched to existing
Ground；
(2) detect unit gate out switch Q0: closure machine set outlet switch Q0, machine set outlet switch Q0 is being just if indicator light HY is bright
Often；The machine set outlet switch Q0 failure if indicator light HY does not work is closed manual switch 1K；
(3) detect commutation disconnecting link Q9B: closure commutation disconnecting link Q9B, commutation disconnecting link Q9B is normal if indicator light HW is bright；If indicator light
HW does not work then commutation disconnecting link Q9B failure, is closed manual switch 3K；
(4) commutation disconnecting link Q9A and commutation disconnecting link Q9C is detected:
(4-1) is closed commutation disconnecting link Q9A and commutation disconnecting link Q9C, the commutation disconnecting link Q9A and commutation disconnecting link Q9C if indicator light HR is bright
It is normal, if indicator light HR, which does not work, enters step (4-2)；
(4-2) is closed manual switch 4K, and commutation disconnecting link Q9A is normal if indicator light HR is bright, commutation disconnecting link Q9C failure, if instruction
Lamp HR, which does not work, enters step (4-3)；
(4-3) disconnects manual switch 4K, closure manual switch 2K, and commutation disconnecting link Q9C is normal if indicator light HR is bright, commutation disconnecting link
Q9A failure, commutation disconnecting link Q9A and the equal failure of commutation disconnecting link Q9C if indicator light HR does not work；
(5) commutation disconnecting link Q9AC and commutation disconnecting link Q9CA is detected:
(5-1) disconnects commutation disconnecting link Q9A, commutation disconnecting link Q9C, manual switch 4K and manual switch 2K, is closed commutation disconnecting link Q9AC
With commutation disconnecting link Q9CA, commutation disconnecting link Q9AC and commutation disconnecting link Q9CA are normal if indicator light HG is bright, if indicator light HG does not work
Enter step (5-2)；
(5-2) is closed manual switch 6K, and commutation disconnecting link Q9AC is normal if indicator light HG is bright, commutation disconnecting link Q9CA failure, if referring to
Show that lamp HG does not work and enters step (5-3)；
(5-3) disconnects manual switch 6K, closure manual switch 5K, and commutation disconnecting link Q9CA is normal if indicator light HG is bright, commutation knife
Lock Q9AC failure, commutation disconnecting link Q9AC and the equal failure of commutation disconnecting link Q9CA if indicator light HG does not work.
5. fault detection method according to claim 4, it is characterised in that: checked after switching control mode in step (1)
Each indicator light whether failure.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| 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 |
| CN108873832B (en) * | 2018-06-07 | 2021-05-04 | 大唐韩城第二发电有限责任公司 | Logic system and device of generator fault interlocking tripping stator cooling water pump |
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