CN105870971A - Anti-misoperation locking system and method for power plant - Google Patents
Anti-misoperation locking system and method for power plant Download PDFInfo
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- CN105870971A CN105870971A CN201610383340.6A CN201610383340A CN105870971A CN 105870971 A CN105870971 A CN 105870971A CN 201610383340 A CN201610383340 A CN 201610383340A CN 105870971 A CN105870971 A CN 105870971A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- Lock And Its Accessories (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an anti-misoperation locking system and method for a power plant. When a device line is overhauled or a high-pressure-side earthing switch of a boosting transformer is needed to be closed in other circumstances, a first disconnecting switch is firstly switched off, a first key is taken out from a first control lock on the first disconnecting switch and then is inserted into a first exchange lock, a second key is taken out from a second exchange lock and finally is inserted into a second control lock on the earthing switch, and the earthing switch is closed. After the operation is completed, the earthing switch is switched off again, the second key is taken out from the second control lock and put back to a key exchange box, the first key is taken out from the first exchange lock and inserted into the first control lock again, and then the first disconnecting switch can be operated. By the adoption of the anti-misoperation locking system and the method for the power plant, electrical misoperation caused by inaccurate computer monitoring signals and man-made errors are completely eradicated, device damage and personal injury and fatal accidents are avoided, and the operating safety of the power plant is ensured.
Description
Technical field
The present invention relates to power system security field, particularly to a kind of power plant anti-error locking system and method.
Background technology
In order to ensure the operation safety in power plant, stop the generation of electric fault-operation accident, it is desirable to forbid charged
Guan Bi booster transformer high-pressure side earthed switch.If the charged booster transformer high-pressure side of Guan Bi by mistake earthed switch,
Shorted to earth will occur, it is most likely that cause device damage and human casualty accident.
Power plant is often equipped with the security incident that temperature survey by c omputer avoids electric misoperation to cause, during grid switching operation
First simulation preview operation on anti-error main frame, anti-error main frame is according to having previously been stored in anti-misoperation locking logical base
Information and the location status of current device, carry out latching logic judgement to each simulated operation, by correct
Simulated operation content generates practical operation program transportation and shows according to computer key to computer key, operations staff
Operation content, open corresponding puzzle lock successively and equipment operated.But temperature survey by c omputer is not
Possessing the prompt facility to equipment displacement, place one's entire reliance upon computer monitoring signal, if computer monitoring signal
Wrong, or operations staff monitors not in place, causes certain displacement signal to be missed, and security incident still has
It may happen that.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, it is provided that a kind of power plant anti-error locking system
And method, overcome computer monitoring signal inaccurate and the unfavorable factor such as human error, prevent from closing liter by mistake
Pressure transformer high-pressure side earthed switch.
Its technical scheme is as follows:
A kind of power plant anti-error locking system, exchanges including booster transformer, electromotor, power transmission network and key
Box, the low-pressure side of described booster transformer is connected with electromotor, the high-pressure side of described booster transformer and transmission of electricity
Net is connected, and is provided with earthed switch between high-pressure side and the power transmission network of described booster transformer, described power transmission network with
Be provided with the first roof-cut resistence between earthed switch, described first roof-cut resistence be provided with the first manipulation lockset and with
First key of the first manipulation lockset coupling, and if only if time the first key is positioned at the first manipulation lockset, the
One roof-cut resistence can be steered, and and if only if time the first roof-cut resistence is off, and the first key can be from
Taking out in first manipulation lockset, described earthed switch is provided with the second manipulation lockset and manipulates lockset with second
The second key joined, and if only if time the second key is positioned at the second manipulation lockset, and earthed switch can be steered,
And if only if time earthed switch is off, and the second key can take out in the second manipulation lockset, described
Key interchange box is provided with the second friendship of the first exchange lockset and the second key coupling mated with the first key
Changing lockset, and if only if time the first key is positioned at the first exchange lockset, and the second key can be from the second exchange lock
Taking out in tool, and if only if time the second key is positioned at the second exchange lockset, and the first key can be from the first exchange
Take out in lockset.When power plant normally works, earthed switch is off, and the second key is positioned at second
In exchange lockset, the first roof-cut resistence is in closure state, and booster transformer is to power transmission network conveying high-pressure electricity.
When repair apparatus circuit or other situation need to close booster transformer high-pressure side earthed switch, first disconnect the
One roof-cut resistence, takes out the first key, then by first in the first manipulation lockset from the first roof-cut resistence
Key inserts in the first exchange lockset, takes out the second key, finally by the second key in the second exchange lockset
Insert in the second manipulation lockset on earthed switch, closed ground switch.After operation, back off and connect
Ground switch, takes out the second key and returns key interchange box in the second manipulation lockset, from the first exchange lockset
Interior taking-up the first key also reinserts in the first manipulation lockset, could operate the first roof-cut resistence,
Guarantee safety.
Wherein in an embodiment, described power transmission network includes the first single busbar and the second single busbar, described
One single busbar and the second single busbar are connected with the high-pressure side of booster transformer respectively, described first roof-cut resistence bag
Include the first roof-cut resistence a and the first roof-cut resistence b, described first roof-cut resistence a be arranged on the first single busbar with
Between the high-pressure side of booster transformer, described first roof-cut resistence b is arranged on the second single busbar and boosting transformation
Between the high-pressure side of device, described first manipulation lockset includes the first manipulation lockset a and first manipulation lockset b, institute
State the first key and include the first key a and the first key b, described first manipulation lockset a and the first key a
Joining, described first manipulation lockset a is arranged on the first roof-cut resistence a, described first manipulation lockset b and the
One key b coupling, described first manipulation lockset b is arranged on the first roof-cut resistence b, and and if only if first
When key a is positioned at the first manipulation lockset a, the first roof-cut resistence a can be steered, and and if only if first cuts
When disconnection pass a is off, the first key a can take out in the first manipulation lockset a, and and if only if
When first key b is positioned at the first manipulation lockset b, the first roof-cut resistence b can be steered, and and if only if
When one roof-cut resistence b is off, the first key b can take out in the first manipulation lockset b, described
The first exchange lockset a and the first key b that first exchange lockset includes mate with the first key a mate the
One exchange lockset b, and if only if the first key a, the first key b lay respectively at the first exchange lockset a, the
Time in one exchange lockset b, the second key can take out in the second exchange lockset, and if only if the second key position
In second exchange lockset in time, the first key a, the first key b can respectively from first exchange lockset a, first
Take out in exchange lockset b.Power plant all uses double bus scheme mostly, it is therefore desirable to single female first respectively
First manipulation lockset is installed, at Guan Bi booster transformer high pressure on the first roof-cut resistence of line and the second single busbar
Before the earthed switch of side, it is ensured that booster transformer disconnects with power transmission network.
Wherein in an embodiment, described first roof-cut resistence a and the first roof-cut resistence b is and keeps apart
Close, between described first roof-cut resistence and the high-pressure side of booster transformer, be additionally provided with main circuit breaker.During power failure,
First disconnect main circuit breaker, in the case of checking that confirmation main circuit breaker disconnects, first draw the isolation of power transmission network side
Switch, the disconnecting switch of post-tensioning booster transformer side.During power transmission, first close the disconnecting switch of booster transformer side,
The disconnecting switch of rear conjunction power transmission network, then the main circuit breaker that closes, it is ensured that safety.
Wherein in an embodiment, described earthed switch includes earthed switch a and earthed switch b, described in connect
Ground switch a and earthed switch b are separately positioned on the both sides of main circuit breaker, and described second manipulation lockset includes the
Two manipulation lockset a and the second manipulation lockset b, described second key includes the second key a and the second key b,
Described second manipulation lockset a and the second key a coupling, described second manipulation lockset a is arranged on earthed switch a
On, described second manipulation lockset b and the second key b coupling, described second manipulation lockset b is arranged on ground connection
On switch b, and if only if time the second key a is positioned at the second manipulation lockset a, and earthed switch a can be grasped
Control, and if only if time earthed switch a is off, and the second key a can be in the second manipulation lockset a
Taking out, and if only if time the second key b is positioned at the second manipulation lockset b, and earthed switch b can be steered,
And if only if time earthed switch b is off, and the second key b can take out in the second manipulation lockset b,
Described second exchange lockset includes the second exchange lockset a and the second key b coupling mated with the second key a
The second exchange lockset b, and if only if the second key a, the second key b lay respectively at the second exchange lockset a,
Time in second exchange lockset b, the first key can take out in the first exchange lockset, and if only if the first key
When being positioned at the first exchange lockset, the second key a, the second key b can respectively from the second exchange lockset a, the
Take out in two exchange lockset b.Earthed switch is installed, temporarily by repair apparatus line in repair apparatus circuit both sides
The current-carrying part on road couples together with the earth, in case electric shock accidents occurs.
Wherein in an embodiment, described power plant anti-error locking system also includes excitation unit, described in encourage
Magnetic device is connected with electromotor, and described excitation unit is provided with degaussing switch, and described degaussing switch is provided with
Three manipulation locksets and the 3rd key mated with the 3rd manipulation lockset, and if only if, and the 3rd key is positioned at the 3rd behaviour
Time in control lockset, degaussing switch can be steered, and and if only if time degaussing switch is off, the 3rd key
Spoon can take out in the 3rd manipulation lockset, and described key interchange box is provided with the 3rd friendship mated with the 3rd key
Changing lockset, and if only if the first key, the 3rd key lay respectively at the first exchange lockset, the 3rd exchange lockset
Time interior, the second key can take out in the second exchange lockset, and and if only if, and the second key is positioned at the second exchange lock
Time in tool, the first key, the 3rd key can take out respectively in the first exchange lockset, the 3rd exchange lockset.
Before the earthed switch of Guan Bi booster transformer high-pressure side, it is ensured that booster transformer disconnects with electromotor.
Wherein in an embodiment, described power plant anti-error locking system also includes house transformer and station-service
Electrical network, the high-pressure side of described house transformer is connected with electromotor, the low-pressure side of described house transformer and factory
Being connected with electrical network, be provided with the second roof-cut resistence between described house transformer and station-service electrical network, described second cuts
Disconnect shut be provided with the 4th manipulation lockset and with the 4th manipulation the 4th key that mate of lockset, and if only if the 4th
When key is positioned at the 4th manipulation lockset, the second roof-cut resistence can be steered, and if only if the second roof-cut resistence
When being off, the 4th key can take out in the 4th manipulation lockset, and described key interchange box is provided with
The 4th exchange lockset mated with the 4th key, and if only if the first key, the 4th key lay respectively at first
Time in exchange lockset, the 4th exchange lockset, the second key can take out in the second exchange lockset, and and if only if
When second key is positioned at the second exchange lockset, the first key, the 4th key can respectively from first exchange lockset,
Take out in 4th exchange lockset.Before the earthed switch of Guan Bi booster transformer high-pressure side, it is ensured that booster transformer
Disconnect with house transformer.
Wherein in an embodiment, described house transformer is three coil transformers, described house transformer
Low-pressure side includes the first low-pressure side and the second low-pressure side, the first low-pressure side and the second low-pressure side respectively with station service
Net is connected, and described second roof-cut resistence includes the second roof-cut resistence a and the second roof-cut resistence b, and described second cuts
Disconnecting pass a to be arranged between the first low-pressure side and station-service electrical network, described second roof-cut resistence b is arranged on second
Between low-pressure side and station-service electrical network, described 4th manipulation lockset includes the 4th manipulation lockset a and the 4th manipulation lock
Tool b, described 4th key includes the 4th key a and the 4th key b, described 4th manipulation lockset a and the 4th
Key a mates, and described 4th manipulation lockset a is arranged on the second roof-cut resistence a, described 4th manipulation lock
Tool b and the 4th key b mate, and the described 4th manipulates lockset b is arranged on the second roof-cut resistence b, when and
Only when the 4th key a be positioned at the 4th manipulation lockset a time, the second roof-cut resistence a can be steered, when and only
When the second roof-cut resistence a is off, the 4th key a can take out in the 4th manipulation lockset a,
During and if only if the 4th key b is positioned at the 4th manipulation lockset b, the second roof-cut resistence b can be steered, when
During and if only if the second roof-cut resistence b is off, the 4th key b can take in the 4th manipulation lockset b
Going out, described 4th exchange lockset includes the 4th exchange lockset a and the 4th key b mated with the 4th key a
4th exchange lockset b of coupling, and if only if the first key, the 4th key a, the 4th key b lay respectively at
Time in first exchange lockset, the 4th exchange lockset a, the 4th exchange lockset b, the second key can be from the second exchange
Taking out in lockset, and if only if time the second key is positioned at the second exchange lockset, the first key, the 4th key a,
4th key b can take out respectively in the first exchange lockset, the 4th exchange lockset a, the 4th exchange lockset b.
When house transformer uses three coil transformers or many coil transformers, in Guan Bi booster transformer high-pressure side, ground connection is opened
Guan Qian, therefore, to assure that every primary Ioops all disconnects with booster transformer.
Wherein in an embodiment, described second roof-cut resistence a and the second roof-cut resistence b is chopper,
Arc-suppression function is had during disjunction circuit.
The present invention also provides for a kind of power plant Interlocking Methods, comprises the following steps:
Disconnect the first roof-cut resistence between power transmission network and earthed switch, the first behaviour from the first roof-cut resistence
The first key is taken out in control lockset；
First key is inserted in the first exchange lockset, in the second exchange lockset, take out the second key；
Second key is inserted in the second manipulation lockset on earthed switch, closed ground switch.
When power plant normally works, earthed switch is off, and the second key is positioned at the second exchange lockset
In, the first roof-cut resistence is in closure state, and booster transformer is to power transmission network conveying high-pressure electricity.Set in maintenance
When reserve line or other situation need to close booster transformer high-pressure side earthed switch, first disconnect first and cut off
Close, take out the first key in the first manipulation lockset from the first roof-cut resistence, then the first key is inserted
In first exchange lockset, in the second exchange lockset, take out the second key, finally the second key is inserted ground connection
In the second manipulation lockset on switch, closed ground switch.After operation, back off earthed switch,
Take out the second key and return key interchange box in the second manipulation lockset, in the first exchange lockset, take out the
One key also reinserts in the first manipulation lockset, could operate the first roof-cut resistence, it is ensured that safety.
Specifically, described power plant Interlocking Methods comprises the following steps:
Disconnect the first roof-cut resistence a between power transmission network and earthed switch, first from the first roof-cut resistence a
The first key a is taken out in manipulation lockset a；
Disconnect the first roof-cut resistence b between power transmission network and earthed switch, first from the first roof-cut resistence b
The first key b is taken out in manipulation lockset b；
Disconnect the degaussing switch on excitation unit, in the 3rd manipulation lockset from degaussing switch, take out the 3rd key
Spoon；
Disconnect the second roof-cut resistence a between house transformer and station-service electrical network, from the second roof-cut resistence a
The 4th key a is taken out in 4th manipulation lockset a；
Disconnect the second roof-cut resistence b between house transformer and station-service electrical network, from the second roof-cut resistence b
The 4th key b is taken out in 4th manipulation lockset b；
First key a, the first key b, the 3rd key, the 4th key a, the 4th key b are inserted respectively
First exchange lockset a, the first exchange lockset b, the 3rd exchange lockset, the 4th exchange lockset a, the 4th exchange
In lockset b, in the second exchange lockset a, take out the second key a, in the second exchange lockset b, take out second
Key b；
Second key a, the second key b are inserted respectively the second manipulation lockset a, ground connection on earthed switch a
In the second manipulation lockset b on switch b, closed ground switch a, earthed switch b.
When power plant normally works, earthed switch a, earthed switch b are off, the second key a,
Second key b lays respectively in the second exchange lockset a, the second exchange lockset b, the first roof-cut resistence a, the
One roof-cut resistence b, degaussing switch are in closure state, and booster transformer is to power transmission network conveying high-pressure electricity.In inspection
Repair device line or time other situation needs to close booster transformer high-pressure side earthed switch a, earthed switch b,
First disconnect the first roof-cut resistence a, the first roof-cut resistence b, degaussing switch, the second roof-cut resistence a, second cut
Disconnect and close b, take out the first key a, the first key b, the 3rd key, the 4th key a, the 4th key b
And respectively insert first exchange lockset a, first exchange lockset b, the 3rd exchange lockset, the 4th exchange lockset a,
In 4th exchange lockset b, take out the second key a, the second key b simultaneously, finally by the second key a, the
Two key b insert in the second manipulation lockset a, the second manipulation lockset b respectively, closed ground switch a, ground connection
Switch b.After operation, back off earthed switch a, earthed switch b, take out the second key a,
Two key b also return key interchange box, retrieve the first key a, the first key b, the 3rd key,
Four key a, the 4th key b.
Advantage or principle to preceding solution illustrate below:
This power plant anti-error locking system and method, stopped because computer monitoring signal is inaccurate and artificial
Error and the electric misoperation that causes, it is to avoid device damage and human casualty accident, it is ensured that power plant
Run safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power plant anti-error locking system described in the embodiment of the present invention；
Fig. 2 is the flow chart of the power plant Interlocking Methods described in the embodiment of the present invention.
Description of reference numerals:
1, booster transformer, 2, electromotor, 3, power transmission network, 4, key interchange box, 5, main circuit breaker,
6, excitation unit, 7, house transformer, 8, station-service electrical network, the 10, first roof-cut resistence a, 11, first
Roof-cut resistence b, 12, earthed switch a, 13, earthed switch b, the 14, second roof-cut resistence a, 15,
Two roof-cut resistence b, the 30, first single busbar, the 31, second single busbar, the 40, first exchange lockset a, 41,
First exchange lockset b, the 42, second exchange lockset a, the 43, second exchange lockset b, the 44, the 3rd exchange lock
Tool, the 45, the 4th exchanges lockset a, the 46, the 4th exchange lockset b, 60, degaussing switch, the 70, first low pressure
Side, the 71, second low-pressure side, the 100, first manipulation lockset a, the 101, first key a, 110, first behaviour
Control lockset b, the 111, first key b, 120, second manipulation lockset a, the 121, second key a, 130,
Second manipulation lockset b, the 131, second key b, the 140, the 4th manipulates lockset a, the 141, the 4th key a,
150, the 4th manipulation lockset b, the 151, the 4th key b, the 600, the 3rd manipulates lockset, the 601, the 3rd key.
Detailed description of the invention
Below embodiments of the invention are described in detail:
As it is shown in figure 1, the power plant anti-error locking system described in the present embodiment, including booster transformer 1, send out
Motor 2, power transmission network 3 and key interchange box 4, the low-pressure side of described booster transformer 1 is connected with electromotor 2,
Described power transmission network 3 includes the first single busbar 30 and the second single busbar 31, described first single busbar 30 and second
Single busbar 31 high-pressure side with booster transformer 1 respectively is connected, and sets between described power transmission network 3 and earthed switch
The first roof-cut resistence, described first roof-cut resistence is had to include the first roof-cut resistence a10 and the first roof-cut resistence b11,
Described first roof-cut resistence a10 is arranged between the first single busbar 30 and the high-pressure side of booster transformer 1, institute
State the first roof-cut resistence b11 to be arranged between the second single busbar 31 and the high-pressure side of booster transformer 1, described
First roof-cut resistence be provided with the first manipulation lockset and with first manipulation the first key of mating of lockset, described the
One manipulation lockset includes that the first manipulation lockset a100 manipulates lockset b110 with first, and described first key includes the
One key a101 and the first key b111, described first manipulation lockset a100 and the first key a101 coupling,
Described first manipulation lockset a100 is arranged on the first roof-cut resistence a10, described first manipulation lockset b110
Mating with the first key b111, described first manipulation lockset b110 is arranged on the first roof-cut resistence b11,
And if only if time the first key a101 is positioned at the first manipulation lockset a100, and the first roof-cut resistence a10 can quilt
Manipulation, and if only if time the first roof-cut resistence a10 is off, and the first key a101 can be from the first behaviour
Taking out in control lockset a100, and if only if time the first key b111 is positioned at the first manipulation lockset b110, the
One roof-cut resistence b11 can be steered, and and if only if time the first roof-cut resistence b11 is off, and first
Key b111 can take out in the first manipulation lockset b110.
Main circuit breaker 5, described liter it is additionally provided with between described first roof-cut resistence and the high-pressure side of booster transformer 1
Being provided with earthed switch between high-pressure side and the power transmission network 3 of pressure transformer 1, described earthed switch includes that ground connection is opened
Close a12 and be separately positioned on main circuit breaker with earthed switch b13, described earthed switch a12 and earthed switch b13
The both sides of 5, described earthed switch is provided with the second manipulation lockset and the second key mated with the second manipulation lockset
Spoon, described second manipulation lockset include the second manipulation lockset a120 with second manipulate lockset b130, described second
Key includes the second key a121 and the second key b131, described second manipulation lockset a120 and the second key
A121 mates, and described second manipulation lockset a120 is arranged on earthed switch a12, described second manipulation lockset
B130 and the second key b131 coupling, described second manipulation lockset b130 is arranged on earthed switch b13,
And if only if time the second key a121 is positioned at the second manipulation lockset a120, and earthed switch a12 can be steered,
And if only if time earthed switch a12 is off, and the second key a121 can be from the second manipulation lockset a120
Interior taking-up, and if only if time the second key b131 is positioned at the second manipulation lockset b130, earthed switch b13
Can be steered, and if only if time earthed switch b13 is off, and the second key b131 can be from the second behaviour
Take out in control lockset b130.
Described power plant anti-error locking system also includes excitation unit 6, described excitation unit 6 and electromotor 2 phase
Even, described excitation unit 6 is provided with degaussing switch 60, and described degaussing switch 60 is provided with the 3rd manipulation lockset
600 and with the 3rd manipulation the 3rd key 601 that mate of lockset 600, and if only if, and the 3rd key 601 is positioned at the
Time in three manipulation locksets 600, degaussing switch 60 can be steered, and and if only if, and degaussing switch 60 is in disconnection
During state, the 3rd key 601 can take out in the 3rd manipulation lockset 600.
Described power plant anti-error locking system also includes house transformer 7 and station-service electrical network 8, described station-service transformation
Device 7 is three coil transformers, and the high-pressure side of described house transformer 7 is connected with electromotor 2, described unit transformer
The low-pressure side of depressor 7 includes the first low-pressure side 70 and the second low-pressure side 71, and the first low-pressure side 70 is low with second
Pressure side 71 is connected with station-service electrical network 8 respectively, is provided with second between described house transformer 7 and station-service electrical network 8
Roof-cut resistence, described second roof-cut resistence includes the second roof-cut resistence a14 and the second roof-cut resistence b15, described
Second roof-cut resistence a14 is arranged between the first low-pressure side 70 and station-service electrical network 8, described second roof-cut resistence
B15 is arranged between the second low-pressure side 71 and station-service electrical network 8, and described second roof-cut resistence is provided with the 4th behaviour
Control lockset and the 4th key mated with the 4th manipulation lockset, described 4th manipulation lockset includes the 4th manipulation lock
Tool a140 and the 4th manipulation lockset b150, described 4th key includes the 4th key a141 and the 4th key
B151, described 4th manipulation lockset a140 and the 4th key a141 coupling, described 4th manipulation lockset a140
It is arranged on the second roof-cut resistence a14, described 4th manipulation lockset b150 and the 4th key b151 coupling,
Described 4th manipulation lockset b150 is arranged on the second roof-cut resistence b15, and if only if the 4th key a141
When being positioned at the 4th manipulation lockset a140, the second roof-cut resistence a14 can be steered, the second cut-out that and if only if
When switch a14 is off, the 4th key a141 can take out in the 4th manipulation lockset a140, when
During and if only if the 4th key b151 is positioned at the 4th manipulation lockset b150, the second roof-cut resistence b15 can be grasped
Control, and if only if time the second roof-cut resistence b15 is off, and the 4th key b151 can be from the 4th manipulation
Take out in lockset b150.
Described key interchange box 4 is provided with the first exchange lockset a40 and the mated with the first key a101
Second exchange lockset of the first exchange lockset b41 and the second key a121 coupling of one key b111 coupling
Second exchange lockset b43 of a42 and the second key b131 coupling and the 3rd friendship of the 3rd key 601 coupling
Change the 4th exchange lockset a45 and the 4th key b151 coupling that lockset 44 mates with the 4th key a141
The 4th exchange lockset b46, and if only if the first key a101, the first key b111, the 3rd key 601,
4th key a141, the 4th key b151 lay respectively at the first exchange lockset a40, first exchange lockset b41,
Time in 3rd exchange lockset the 44, the 4th exchange lockset a45, the 4th exchange lockset b46, the second key a121,
Second key b131 can respectively from second exchange lockset a42, second exchange lockset b43 in take out, when and only
When the second key a121, the second key b131 lay respectively at the second exchange lockset a42, the second exchange lockset b43
Time interior, the first key a101, the first key b111, the 3rd key the 601, the 4th key a141, the 4th key
Spoon b151 can respectively from the first exchange lockset a40, the first exchange lockset b41, the 3rd exchange lockset 44, the
Take out in four exchange lockset a45, the 4th exchange lockset b46.
Described first roof-cut resistence a10 and the first roof-cut resistence b11 is disconnecting switch, and described second cuts off
Switch a14 and the second roof-cut resistence b15 is chopper.
With reference to shown in Fig. 2, the present embodiment also provides for a kind of power plant Interlocking Methods, comprises the following steps:
Disconnect the first roof-cut resistence a10 between power transmission network 3 and earthed switch, from the first roof-cut resistence a10
First manipulation lockset a100 in take out the first key a101；
Disconnect the first roof-cut resistence b11 between power transmission network 3 and earthed switch, from the first roof-cut resistence b11
First manipulation lockset b110 in take out the first key b111；
Disconnect the degaussing switch 60 on excitation unit 6, in the 3rd manipulation lockset 600 from degaussing switch 60
Take out the 3rd key 601；
Disconnect the second roof-cut resistence a14 between house transformer 7 and station-service electrical network 8, from the second roof-cut resistence
The 4th key a141 is taken out in the 4th manipulation lockset a140 on a14；
Disconnect the second roof-cut resistence b15 between house transformer 7 and station-service electrical network 8, from the second roof-cut resistence
The 4th key b151 is taken out in the 4th manipulation lockset b150 on b15；
By the first key a101, the first key b111, the 3rd key the 601, the 4th key a141, the 4th key
Spoon b151 insert respectively the first exchange lockset a40, the first exchange lockset b41, the 3rd exchange lockset 44, the
In four exchange lockset a45, the 4th exchange lockset b46, in the second exchange lockset a42, take out the second key
A121, takes out the second key b131 in the second exchange lockset b43；
Second key a121, the second key b131 are inserted respectively the second manipulation lockset on earthed switch a12
In the second manipulation lockset b130 on a120, earthed switch b13, closed ground switch a12, earthed switch
b13。
When power plant normally works, earthed switch a12, earthed switch b13 are off, the second key
A121, the second key b131 lay respectively in the second exchange lockset a42, the second exchange lockset b43, and first
Roof-cut resistence a10, the first roof-cut resistence b11, degaussing switch 60 are in closure state, booster transformer 1
To power transmission network 3 conveying high-pressure electricity.Need to close booster transformer 1 at repair apparatus circuit or other situation high
During pressure side earthed switch a12, earthed switch b13, first disconnect the first roof-cut resistence a10, the first roof-cut resistence
B11, degaussing switch the 60, second roof-cut resistence a14, the second roof-cut resistence b15, take out the first key a101,
First key b111, the 3rd key the 601, the 4th key a141, the 4th key b151 also insert first respectively
Exchange lockset a40, first exchange lockset b41, the 3rd exchange lockset the 44, the 4th exchange lockset a45, the 4th
In exchange lockset b46, take out the second key a121, the second key b131 simultaneously, finally by the second key a121,
Second key b131 inserts in the second manipulation lockset a120, the second manipulation lockset b130 respectively, closes ground connection
Switch a12, earthed switch b13.After operation, back off earthed switch a12, earthed switch b13,
Take out the second key a121, the second key b131 and return key interchange box 4, retrieving the first key
A101, the first key b111, the 3rd key the 601, the 4th key a141, the 4th key b151.This generating
Factory's anti-error locking system and method, stopped because of computer monitoring signal is inaccurate and human error and cause
Electric misoperation, it is to avoid device damage and human casualty accident, it is ensured that the operation safety in power plant.
And before Guan Bi booster transformer 1 high-pressure side earthed switch, consider comprehensively power transmission network 3, electromotor 2,
House transformer 7 power supply point such as grade, completely eliminates five-defence block blind area.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. a power plant anti-error locking system, it is characterised in that include booster transformer, electromotor, defeated
Electrical network and key interchange box, the low-pressure side of described booster transformer is connected with electromotor, described booster transformer
High-pressure side be connected with power transmission network, be provided with earthed switch between high-pressure side and the power transmission network of described booster transformer,
Being provided with the first roof-cut resistence between described power transmission network and earthed switch, described first roof-cut resistence is provided with first
Manipulation lockset and the first key mated with the first manipulation lockset, and if only if, and the first key is positioned at the first manipulation
Time in lockset, the first roof-cut resistence can be steered, and and if only if time the first roof-cut resistence is off,
First key can take out in the first manipulation lockset, and described earthed switch is provided with the second manipulation lockset and with the
Second keys of two manipulation locksets couplings, and if only if time the second key is positioned at the second manipulation lockset, ground connection
Switch can be steered, and and if only if time earthed switch is off, and the second key can be from the second manipulation lock
Taking out in tool, described key interchange box is provided with the first exchange lockset and the second key mated with the first key
Second exchange lockset of spoon coupling, and if only if time the first key is positioned at the first exchange lockset, the second key
Can take out in the second exchange lockset, and if only if time the second key is positioned at the second exchange lockset, the first key
Spoon can take out in the first exchange lockset.
Power plant the most according to claim 1 anti-error locking system, it is characterised in that described power transmission network
Including the first single busbar and the second single busbar, described first single busbar and the second single busbar respectively with boosting transformation
The high-pressure side of device is connected, and described first roof-cut resistence includes the first roof-cut resistence a and the first roof-cut resistence b, institute
Stating the first roof-cut resistence a to be arranged between the first single busbar and the high-pressure side of booster transformer, described first cuts
Disconnect pass b to be arranged between the second single busbar and the high-pressure side of booster transformer, described first manipulation lockset bag
Including the first manipulation lockset a and first manipulation lockset b, described first key includes the first key a and the first key
B, described first manipulation lockset a and the first key a coupling, described first manipulation lockset a is arranged on first and cuts
Disconnecting and close on a, described first manipulation lockset b and the first key b coupling, described first manipulation lockset b sets
Putting on the first roof-cut resistence b, and if only if time the first key a is positioned at the first manipulation lockset a, and first
Roof-cut resistence a can be steered, and and if only if time the first roof-cut resistence a is off, the first key a
Can take out in the first manipulation lockset a, and if only if time the first key b is positioned at the first manipulation lockset b,
First roof-cut resistence b can be steered, and and if only if time the first roof-cut resistence b is off, the first key
Spoon b can take out in the first manipulation lockset b, and described first exchange lockset includes mating with the first key a
First exchange lockset b, and if only if the first key a of the first exchange lockset a and the first key b coupling,
First key b lay respectively at the first exchange lockset a, first exchange lockset b in time, the second key can be from second
Taking out in exchange lockset, and if only if time the second key is positioned at the second exchange lockset, the first key a, first
Key b can take out respectively in the first exchange lockset a, the first exchange lockset b.
Power plant the most according to claim 2 anti-error locking system, it is characterised in that described first cuts
Disconnect pass a and the first roof-cut resistence b and be disconnecting switch, described first roof-cut resistence and booster transformer
Main circuit breaker it is additionally provided with between high-pressure side.
Power plant the most according to claim 3 anti-error locking system, it is characterised in that described ground connection is opened
It is main disconnected that pass includes that earthed switch a and earthed switch b, described earthed switch a and earthed switch b are separately positioned on
The both sides of road device, described second manipulation lockset includes that the second manipulation lockset a manipulates lockset b with second, described the
Two keys include that the second key a and the second key b, described second manipulation lockset a and the second key a mate,
Described second manipulation lockset a is arranged on earthed switch a, described second manipulation lockset b and the second key b
Coupling, described second manipulation lockset b is arranged on earthed switch b, and and if only if, and the second key a is positioned at the
Time in two manipulation lockset a, earthed switch a can be steered, and and if only if, and earthed switch a is off
Time, the second key a can take out in the second manipulation lockset a, and and if only if, and the second key b is positioned at the second behaviour
Time in control lockset b, earthed switch b can be steered, and and if only if time earthed switch b is off,
Second key b can take out in the second manipulation lockset b, and described second exchange lockset includes and the second key a
Second exchange lockset b of the second exchange lockset a and the second key b coupling of coupling, and if only if the second key
Spoon a, the second key b lay respectively at the second exchange lockset a, second exchange lockset b in time, the first key energy
Taking out in the first exchange lockset, and if only if time the first key is positioned at the first exchange lockset, the second key a,
Second key b can take out respectively in the second exchange lockset a, the second exchange lockset b.
Power plant the most according to claim 1 anti-error locking system, it is characterised in that also include excitation
Device, described excitation unit is connected with electromotor, and described excitation unit is provided with degaussing switch, described demagnetization
Switch be provided with the 3rd manipulation lockset and with the 3rd manipulation the 3rd key that mate of lockset, and if only if the 3rd key
When spoon is positioned at the 3rd manipulation lockset, degaussing switch can be steered, and and if only if, and degaussing switch is in disconnection shape
During state, the 3rd key can take out in the 3rd manipulation lockset, and described key interchange box is provided with and the 3rd key
3rd exchange lockset of coupling, and if only if the first key, the 3rd key lay respectively at the first exchange lockset,
Time in 3rd exchange lockset, the second key can take out in the second exchange lockset, and if only if the second key position
Time in the second exchange lockset, the first key, the 3rd key can be respectively from the first exchange lockset, the 3rd exchanges
Take out in lockset.
Power plant the most according to claim 1 anti-error locking system, it is characterised in that also include station-service
Transformator and station-service electrical network, the high-pressure side of described house transformer is connected with electromotor, described house transformer
Low-pressure side be connected with station-service electrical network, be provided with the second roof-cut resistence between described house transformer and station-service electrical network,
Described second roof-cut resistence is provided with the 4th manipulation lockset and the 4th key mated with the 4th manipulation lockset, when
During and if only if the 4th key is positioned at the 4th manipulation lockset, the second roof-cut resistence can be steered, and and if only if the
When two roof-cut resistence are off, the 4th key can take out in the 4th manipulation lockset, and described key is handed over
Changing box and be provided with the 4th exchange lockset mated with the 4th key, and if only if the first key, the 4th key divide
When not being positioned at the first exchange lockset, the 4th exchange lockset, the second key can take out in the second exchange lockset,
And if only if time the second key is positioned at the second exchange lockset, and the first key, the 4th key can be respectively from first
Take out in exchange lockset, the 4th exchange lockset.
Power plant the most according to claim 6 anti-error locking system, it is characterised in that described unit transformer
Depressor is three coil transformers, and the low-pressure side of described house transformer includes the first low-pressure side and the second low-pressure side,
First low-pressure side is connected with station-service electrical network respectively with the second low-pressure side, and described second roof-cut resistence includes that second cuts
Disconnect pass a and the second roof-cut resistence b, described second roof-cut resistence a and be arranged on the first low-pressure side and station-service electrical network
Between, described second roof-cut resistence b is arranged between the second low-pressure side and station-service electrical network, described 4th manipulation
Lockset includes that the 4th manipulation lockset a manipulates lockset b with the 4th, and described 4th key includes the 4th key a and the
Four key b, described 4th manipulation lockset a and the 4th key a coupling, described 4th manipulation lockset a is arranged on
On second roof-cut resistence a, described 4th manipulation lockset b and the 4th key b coupling, described 4th manipulation lock
Tool b is arranged on the second roof-cut resistence b, during and if only if the 4th key a is positioned at the 4th manipulation lockset a,
Second roof-cut resistence a can be steered, and and if only if time the second roof-cut resistence a is off, the 4th key
Spoon a can take out in the 4th manipulation lockset a, and and if only if, and the 4th key b is positioned at the 4th manipulation lockset b
Time, the second roof-cut resistence b can be steered, and and if only if time the second roof-cut resistence b is off, and
Four key b can take out in the 4th manipulation lockset b, and described 4th exchange lockset includes and the 4th key a
4th exchange lockset b of the 4th exchange lockset a and the 4th key b coupling joined, and if only if the first key,
4th key a, the 4th key b lay respectively at the first exchange lockset, the 4th exchange lockset a, the 4th exchange lock
Time in tool b, the second key can take out in the second exchange lockset, and and if only if, and the second key is positioned at the second friendship
When changing in lockset, the first key, the 4th key a, the 4th key b can respectively from the first exchange lockset, the 4th
Take out in exchange lockset a, the 4th exchange lockset b.
Power plant the most according to claim 7 anti-error locking system, it is characterised in that described second cuts
Disconnect pass a and the second roof-cut resistence b and be chopper.
9. a power plant Interlocking Methods, it is characterised in that comprise the following steps:
Disconnect the first roof-cut resistence between power transmission network and earthed switch, the first behaviour from the first roof-cut resistence
The first key is taken out in control lockset；
First key is inserted in the first exchange lockset, in the second exchange lockset, take out the second key；
Second key is inserted in the second manipulation lockset on earthed switch, closed ground switch.
Power plant the most according to claim 9 Interlocking Methods, it is characterised in that specifically include
Following steps:
Disconnect the first roof-cut resistence a between power transmission network and earthed switch, first from the first roof-cut resistence a
The first key a is taken out in manipulation lockset a；
Disconnect the first roof-cut resistence b between power transmission network and earthed switch, first from the first roof-cut resistence b
The first key b is taken out in manipulation lockset b；
Disconnect the degaussing switch on excitation unit, in the 3rd manipulation lockset from degaussing switch, take out the 3rd key
Spoon；
Disconnect the second roof-cut resistence a between house transformer and station-service electrical network, from the second roof-cut resistence a
The 4th key a is taken out in 4th manipulation lockset a；
Disconnect the second roof-cut resistence b between house transformer and station-service electrical network, from the second roof-cut resistence b
The 4th key b is taken out in 4th manipulation lockset b；
First key a, the first key b, the 3rd key, the 4th key a, the 4th key b are inserted respectively
First exchange lockset a, the first exchange lockset b, the 3rd exchange lockset, the 4th exchange lockset a, the 4th exchange
In lockset b, in the second exchange lockset a, take out the second key a, in the second exchange lockset b, take out second
Key b；
Second key a, the second key b are inserted respectively the second manipulation lockset a, ground connection on earthed switch a
In the second manipulation lockset b on switch b, closed ground switch a, earthed switch b.
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| CN201610383340.6A CN105870971B (en) | 2016-05-31 | 2016-05-31 | Power plant anti-error locking system and method |
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| CN110829482A (en) * | 2018-08-07 | 2020-02-21 | 阳光电源股份有限公司 | Integrated medium-voltage photovoltaic grid-connected system and interlocking control device thereof |
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| CN105870971B (en) | 2019-03-29 |
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