CN207781447U - The high-voltage switch gear control system of the continuous limitation of closing a floodgate of band - Google Patents
The high-voltage switch gear control system of the continuous limitation of closing a floodgate of band Download PDFInfo
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- CN207781447U CN207781447U CN201820130325.5U CN201820130325U CN207781447U CN 207781447 U CN207781447 U CN 207781447U CN 201820130325 U CN201820130325 U CN 201820130325U CN 207781447 U CN207781447 U CN 207781447U
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Abstract
The utility model provides the high-voltage switch gear control system that a kind of band continuously closes a floodgate limitation, include positive pole+KM and power cathode KM from the small busbar of cabinet top, control system power switch QL, high-voltage switch gear shutting-brake control part, high-voltage switch gear separating brake control section, signal section and restricted part of continuously closing a floodgate, high-voltage switch gear shutting-brake control part, high-voltage switch gear separating brake control section, signal section and continuous combined floodgate restricted part are connected in parallel on successively between positive pole+KM and power cathode KM, the control system power switch QL is connected in the total loop between positive pole+KM and power cathode KM.It is continuously closed a floodgate and is limited to high-voltage switch gear using combined floodgate limit circuit, avoided motor from powering off and occur the short time in stopping process and close a floodgate again startings, or continuously close a floodgate when equipment breaks down and trips, guarantee equipment is safe to use.
Description
Technical field
The utility model is related to high-tension switch cabinet technical field, pressed off more particularly to a kind of continuously the close a floodgate height of limitation of band
Close control system.
Background technology
Conveying and control device of the high-tension switch cabinet as a kind of electric power energy, are widely used in industrial production.
The load that high-tension switch cabinet is controlled all is usually the larger equipment of capacity, and starting current is very big, to the impact of equipment also compared with
Greatly.And the rotatory inertia of mechanical load is big after shutting down, and the time come to a complete stop is longer.For the operational safety of equipment, usually
The Fraquent start in short-term for needing limitation to load.At present mainly by formulating manipulator then, come artificial to the frequent of large scale equipment
Starting is constrained.But effect is frequently not fine.
Utility model content
Technical problem to be solved in the utility model is：Connected in use by the short time to solve high-voltage switch gear load
Continuous the problem of starting of closing a floodgate.The utility model provides a kind of continuously the close a floodgate high-voltage switch gear control system of limitation of band and solves
State problem.
The utility model solves its technical problem technical solution to be taken：A kind of band continuously closes a floodgate the high pressure of limitation
On-off control system, include positive pole+KM from the small busbar of cabinet top and power cathode-KM, control system power switch QL,
High-voltage switch gear shutting-brake control part, high-voltage switch gear separating brake control section, signal section and restricted part of continuously closing a floodgate, the height
Shutting-brake control part, high-voltage switch gear separating brake control section, signal section and the continuous combined floodgate restricted part of compressing switch are in parallel successively
Between positive pole+KM and power cathode-KM, the control system power switch QL is connected on positive pole+KM and power supply
In total loop between cathode-KM.
The effect of high-voltage switch gear shutting-brake control part is to receive the operational order of operator, is being tested at high-voltage switch gear
When position, shutting-brake control is carried out to high-voltage switch gear by testing combined floodgate circuit part.It can be in the case of not bringing onto load to height
The switching-on mechanism and experiment combined floodgate circuit part to compress switch is tested.At high-voltage switch gear at operating position, pass through work
Combined floodgate circuit part carries out shutting-brake control to high-voltage switch gear, can close a floodgate, open to high-voltage switch gear in the case that load-carrying
The dynamic electronic load in scene.
The effect of high-voltage switch gear separating brake control section is, after the completion of high-voltage switch gear closes a floodgate, receives to press from local separating brake
Button and the instruction of the separating brake of control box opening button and PLC carry out separating brake to high-voltage switch gear.It is thrown in trip protection input pressing plate LP
After entering, is exported by the tripping of protective relaying device and separating brake is carried out to high-voltage switch gear when system breaks down.
The effect of signal section is, by the on and off of signal lamp, prompts the switching on and off of operating personnel's high-voltage switch gear at this time
State, and whether allow to carry out closing operation to high-voltage switch gear.
The effect of continuous combined floodgate restricted part is, each in high-voltage switch gear using the deferred action characteristic of the time relay
After separating brake or fault trip, after system all needs the delay time being set, just can turn on work combined floodgate circuit allows to close a floodgate, otherwise
Reclosing command is invalid.It is continuously closed a floodgate and is limited to high-voltage switch gear using the intermediate relay contact KA-1 from combined floodgate restricted part
System.And second group of contact KA-2 of intermediate relay by being connected to signal section, send out combined floodgate restricted part to signal section
Combined floodgate allow to export.
Specifically, the continuous combined floodgate restricted part include third group switch limit QF3, time relay KT and it is intermediate after
Electric appliance KA, the time relay KT are connected on after third group switch limit QF3 and are connected to positive pole+KM and power supply is negative
A circuit is constituted between-the KM of pole, come the energization of control time relay coil and is broken using the separating brake of switch, "on" position
Electricity；The intermediate relay KA is connected on after the timing closing contact KT-1 of time relay KT and control system is passed through at both ends
Power switch QL is connected to one circuit of composition between positive pole+KM and power cathode-KM, indirectly passes through the time relay
The working condition of KT controls being switched on or switched off for closing circuit.
Specifically, high-voltage switch gear shutting-brake control part includes experiment position limit S8, working position limits S9, experiment position is closed
Lock button SB1, working position switch knob SB2, first group of contact SV-1 for allowing combined floodgate selecting switch, manually and automatically selection is opened
Close first group of contact SA-1, manually and automatically second group of contact SA-2 of selecting switch, automatically control closing contact PLC1, in
Between first group of contact KA-1 of relay, first group of switch limit QF1, energy storage limit S1 and closing coil HQ, the experiment position conjunction
Lock button SB1 forms experiment combined floodgate circuit part after being connected on experiment position limit S8；The manually and automatically selecting switch
Second group of contact SA-2 of first group of contact SA-1 and working position switch knob SB2 and manually and automatically selecting switch and automatic
It controls circuit in parallel again after closing contact PLC1 connects respectively and is connected on first group of contact SV-1 for allowing combined floodgate selecting switch
Between first group of contact KA-1 of intermediate relay, connect again before first group of contact SV-1 for allowing combined floodgate selecting switch
Working position limits S9, collectively constitutes work combined floodgate circuit part；The experiment combined floodgate circuit part and work combined floodgate circuit part
First group of switch limit QF1, energy storage limit S1 and closing coil HQ, the closing coil HQ processes are sequentially connected in series after parallel connection below
Control system power switch QL is connected to power cathode-KM, the common end warp of the experiment position limit S8 and working position limit S9
It crosses control system power switch QL and is connected to positive pole+KM.
Specifically, high-voltage switch gear separating brake control section include local opening button ST1, control box opening button ST2,
Automatically control separating brake contact PLC2, the tripping interface In of protective relaying device, trip protection input pressing plate LP, the 4th group of switch limit
Position QF4 and switching winding TQ, after tripping interface In and trip protection the input pressing plate LP series connection of the protective relaying device again
Successively with local opening button ST1, control box opening button ST2 and automatically control that separating brake contact PLC2 is in parallel, it is in parallel after electricity
The other end of the 4th group of switch limit QF4 and switching winding TQ, the switching winding TQ are sequentially connected in series behind road by control
System power switch QL is connected to power cathode-KM, the local opening button ST1, control box opening button ST2, automatic control
The common end of the tripping interface In of separating brake contact PLC2 and protective relaying device processed are connected to by control system power switch QL
Positive pole+KM.
QF2, local sub-gate signal lamp HR1, control box separating brake are limited specifically, the signal section includes second group of switch
Signal lamp HR2, the 5th group of switch limit QF5, local switching signal lamp HG1, control box switching signal lamp HG2, intermediate relay
Second group of contact KA-2, second group of contact SV-2 for allowing combined floodgate selecting switch, local permission switching signal lamp HY1 and control box
Allow to be serially connected in second group after switching signal lamp HY2, local sub-gate signal lamp HR1 and control box sub-gate signal lamp HR2 parallel connections and open
Close limit QF2 after and circuit both ends by control system power switch QL be connected to positive pole+KM and power cathode-KM it
Between constitute a circuit；It is serially connected in the 5th group of switch limit after local switching signal lamp HG1 and control box switching signal lamp HG2 parallel connections
After the QF5 of position and circuit both ends are connected to structure between positive pole+KM and power cathode-KM by control system power switch QL
At a circuit；Being serially connected in after locally allowing switching signal lamp HY1 and control box to allow switching signal lamp HY2 parallel connections allows to close a floodgate
After second group of contact SV-2 of selecting switch, second group of contact KA-2 of intermediate relay, which is serially connected in, allows combined floodgate selecting switch
Before second group of contact SV-2, and both ends are connected to positive pole+KM and power cathode-KM by control system power switch QL
Between constitute a circuit.
Preferably, the time relay be electric deferred action type, actuation time can be arranged as required to.
Operation principle：
High-voltage switch gear shutting-brake control part, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification,
After control system power switch QL closes.After the completion of switching-on mechanism energy storage, energy storage limits S1 and is closed.High-voltage switch gear is in separating brake
When state, first group of switch limit QF1 is closed.When switch is in testing position, limit S8 in experiment position is closed.In limitation item above
After part meets, receive the operational order that operating personnel send out by testing position switch knob SB1, in experiment position at high-voltage switch gear
When setting, shutting-brake control is carried out to high-voltage switch gear by testing combined floodgate circuit part.It can be in the case of not bringing onto load to high pressure
The switching-on mechanism and experiment combined floodgate circuit part of switch are tested.After the completion of switching-on mechanism energy storage, energy storage limits S1 and is closed.
When high-voltage switch gear is in gate-dividing state, first group of switch limit QF1 is closed.When switch is in operating position, working position limits S9
It is closed.When allowing combined floodgate selecting switch to be selected in allows position, first group of contact SV-1 of combined floodgate selecting switch is allowed to be closed, it is continuous to close
When lock restricted part allows to close a floodgate, first group of contact KA-1 of intermediate relay is closed.After above restrictive condition satisfaction, when manual
When being selected in manual with automatic selector switch, manually and automatically first group of contact SA-1 of selecting switch is closed, and can be passed through at this time
Working position switch knob SB2 on control box closes a floodgate to high-voltage switch gear.When manually and automatically selecting switch is selected in
When automatic, manually and automatically second group of contact SA-2 of selecting switch is closed, at this time can be by automatically controlling closing contact
The output of PLC1 closes a floodgate to high-voltage switch gear.At high-voltage switch gear at operating position, pass through the combined floodgate circuit part pair that works
High-voltage switch gear carries out shutting-brake control, can close a floodgate to high-voltage switch gear in the case that load-carrying, starts the electronic load in scene.
High-voltage switch gear separating brake control section, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification,
After control system power switch QL closes.It closes a floodgate and completes in high-voltage switch gear, after the 4th group of switch limit QF4 is closed, receive to come from
Local opening button ST1, control box opening button ST2, automatically control separating brake contact PLC2 separating brake instruction to high-voltage switch gear into
Row separating brake.After trip protection input pressing plate LP inputs, protective relaying device is in protection act by the interface In that trips to height
It compresses switch and carries out separating brake.Signal section, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification, control system
After system power switch QL closes.In gate-dividing state, second group of switch limit QF2 is closed high-voltage switch gear, local sub-gate signal lamp
HR1, control box sub-gate signal lamp HR2, which power on, to be lighted.High-voltage switch gear is in gate-dividing state to prompt operating personnel at this time.High pressure
In "on" position, the 5th group of switch limit QF5 is closed switch, local switching signal lamp HG1, control box switching signal lamp HG2
Power on and lights.High-voltage switch gear is in "on" position to prompt operating personnel at this time.It is selected in permission when allowing combined floodgate selecting switch
When position, second group of contact SV-2 of combined floodgate selecting switch is allowed to be closed, while when continuous combined floodgate restricted part allows combined floodgate, in
Between second group of contact KA-2 of relay be closed.It is local that switching signal lamp HY1 is allowed to allow switching signal lamp HY2 to connect with control box
Power supply is lighted.High-voltage switch gear has the condition of closing operation to prompt operating personnel at this time.
Continuous combined floodgate restricted part, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrifications, control
After system power switch QL closes.Third group switch limit QF3 is closed when high-voltage switch gear is in gate-dividing state, turn-on time relay
The timing closing contact KT-1 of the power supply of device KT, time relay KT is closed after the delay time of setting, connect it is intermediate after
The power supply of electric appliance KA, intermediate relay KA action, by be connected to signal section second group of contact KA-2 of intermediate relay and
The closure of first group of contact KA-1 of intermediate relay of high-voltage switch gear shutting-brake control part, combined floodgate limiting unit is sent out to signal section
The combined floodgate divided allows to export and release to limit the combined floodgate of high-voltage switch gear shutting-brake control part work combined floodgate circuit.At high-voltage switch gear
In "on" position, third group switch limit QF3 is disconnected, and the power supply of turn-off time relay KT, the delay of time relay KT is closed
Conjunction contact KT-1 is instantaneously disconnected, intermediate relay KA dead electricity.It is connected to second group of contact KA-2 of intermediate relay of signal section
It is simultaneously switched off with first group of contact KA-1 of intermediate relay of high-voltage switch gear shutting-brake control part, combined floodgate limit is sent out to signal section
The combined floodgate of part processed is forbidden exporting and executing limiting the combined floodgate of high-voltage switch gear shutting-brake control part work combined floodgate circuit.Work as high pressure
After switching load trips or operate in operation separating brake shutdown, can not immediately it be carried out again when high-voltage switch gear is in gate-dividing state
It closes a floodgate and starts.Limit QF3 must be switched in third group to be closed, the power supply of turn-on time relay KT, time relay KT's prolongs
When be closed contact KT-1 and be closed after the delay time of setting, connect the power supply of intermediate relay KA, intermediate relay KA is dynamic
Make, by be connected to signal section second group of contact KA-2 of intermediate relay and high-voltage switch gear shutting-brake control part centre after
The closure of first group of contact KA-1 of electric appliance, the combined floodgate of combined floodgate restricted part is sent out to signal section to be allowed to export and release to high pressure
After the combined floodgate limitation for switching shutting-brake control part work combined floodgate circuit, it can just be worked and be closed by high-voltage switch gear shutting-brake control part
Lock circuit carries out combined floodgate startup to high-voltage load.
The utility model has the beneficial effects that：A kind of band provided by the utility model continuously closes a floodgate the high-voltage switch gear control of limitation
System processed is continuously closed a floodgate to high-voltage switch gear using combined floodgate limit circuit and is limited, and avoids motor from powering off and occurs in stopping process
Short time closes a floodgate starting again, or continuously closes a floodgate when equipment breaks down and trips, and ensures that equipment is safe to use.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the electronic schematic diagram of the best embodiment of the utility model.
Specific implementation mode
The utility model is described in detail presently in connection with attached drawing.This figure is the schematic diagram of simplification, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows composition related with the utility model.
The high-voltage switch gear control system of limitation as shown in Figure 1, a kind of band of the utility model continuously closes a floodgate, including come from cabinet
Push up positive pole+KM and power cathode-KM, control system power switch QL, high-voltage switch gear shutting-brake control part, the height of small busbar
Compress switch separating brake control section, signal section and restricted part of continuously closing a floodgate, high-voltage switch gear shutting-brake control part, high pressure
Switch separating brake control section, signal section and continuous combined floodgate restricted part are connected in parallel on positive pole+KM and power cathode-successively
Between KM, the control system power switch QL is connected in the total loop between positive pole+KM and power cathode-KM.
Specifically, the continuous combined floodgate restricted part include third group switch limit QF3, time relay KT and it is intermediate after
Electric appliance KA, the time relay KT are connected on after third group switch limit QF3 and are connected to positive pole+KM and power supply is negative
A circuit is constituted between-the KM of pole；The intermediate relay KA be connected on time relay KT timing closing contact KT-1 it
Afterwards and both ends are connected to one circuit of composition between positive pole+KM and power cathode-KM by control system power switch QL.
Specifically, high-voltage switch gear shutting-brake control part includes experiment position limit S8, working position limits S9, experiment position is closed
Lock button SB1, working position switch knob SB2, first group of contact SV-1 for allowing combined floodgate selecting switch, manually and automatically selection is opened
Close first group of contact SA-1, manually and automatically second group of contact SA-2 of selecting switch, automatically control closing contact PLC1, in
Between first group of contact KA-1 of relay, first group of switch limit QF1, energy storage limit S1 and closing coil HQ, the experiment position conjunction
Lock button SB1 forms experiment combined floodgate circuit part after being connected on experiment position limit S8；The manually and automatically selecting switch
Second group of contact SA-2 of first group of contact SA-1 and working position switch knob SB2 and manually and automatically selecting switch and automatic
It controls circuit in parallel again after closing contact PLC1 connects respectively and is connected on first group of contact SV-1 for allowing combined floodgate selecting switch
Between first group of contact KA-1 of intermediate relay, connect again before first group of contact SV-1 for allowing combined floodgate selecting switch
Working position limits S9, collectively constitutes work combined floodgate circuit part；The experiment combined floodgate circuit part and work combined floodgate circuit part
First group of switch limit QF1, energy storage limit S1 and closing coil HQ, the closing coil HQ processes are sequentially connected in series after parallel connection below
Control system power switch QL is connected to power cathode-KM, the common end warp of the experiment position limit S8 and working position limit S9
It crosses control system power switch QL and is connected to positive pole+KM.
Specifically, high-voltage switch gear separating brake control section include local opening button ST1, control box opening button ST2,
Automatically control separating brake contact PLC2, the tripping interface In of protective relaying device, trip protection input pressing plate LP, the 4th group of switch limit
Position QF4 and switching winding TQ, after tripping interface In and trip protection the input pressing plate LP series connection of the protective relaying device again
Successively with local opening button ST1, control box opening button ST2 and automatically control that separating brake contact PLC2 is in parallel, it is in parallel after electricity
The other end of the 4th group of switch limit QF4 and switching winding TQ, the switching winding TQ are sequentially connected in series behind road by control
System power switch QL is connected to power cathode-KM, the local opening button ST1, control box opening button ST2, automatic control
The common end of the tripping interface In of separating brake contact PLC2 and protective relaying device processed are connected to by control system power switch QL
Positive pole+KM.
QF2, local sub-gate signal lamp HR1, control box separating brake are limited specifically, the signal section includes second group of switch
Signal lamp HR2, the 5th group of switch limit QF5, local switching signal lamp HG1, control box switching signal lamp HG2, intermediate relay
Second group of contact KA-2, second group of contact SV-2 for allowing combined floodgate selecting switch, local permission switching signal lamp HY1 and control box
Allow to be serially connected in second group after switching signal lamp HY2, local sub-gate signal lamp HR1 and control box sub-gate signal lamp HR2 parallel connections and open
Close limit QF2 after and circuit both ends by control system power switch QL be connected to positive pole+KM and power cathode-KM it
Between constitute a circuit；It is serially connected in the 5th group of switch limit after local switching signal lamp HG1 and control box switching signal lamp HG2 parallel connections
After the QF5 of position and circuit both ends are connected to structure between positive pole+KM and power cathode-KM by control system power switch QL
At a circuit；Being serially connected in after locally allowing switching signal lamp HY1 and control box to allow switching signal lamp HY2 parallel connections allows to close a floodgate
After second group of contact SV-2 of selecting switch, second group of contact KA-2 of intermediate relay, which is serially connected in, allows combined floodgate selecting switch
Before second group of contact SV-2, and both ends are connected to positive pole+KM and power cathode-KM by control system power switch QL
Between constitute a circuit.
Preferably, the time relay be electric deferred action type, actuation time can be arranged as required to.
Operation principle：
High-voltage switch gear shutting-brake control part, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification,
After control system power switch QL closes.After the completion of switching-on mechanism energy storage, energy storage limits S1 and is closed.High-voltage switch gear is in separating brake
When state, first group of switch limit QF1 is closed.When switch is in testing position, limit S8 in experiment position is closed.In limitation item above
After part meets, receive the operational order that operating personnel send out by testing position switch knob SB1, in experiment position at high-voltage switch gear
When setting, shutting-brake control is carried out to high-voltage switch gear by testing combined floodgate circuit part.It can be in the case of not bringing onto load to high pressure
The switching-on mechanism and experiment combined floodgate circuit part of switch are tested.After the completion of switching-on mechanism energy storage, energy storage limits S1 and is closed.
When high-voltage switch gear is in gate-dividing state, first group of switch limit QF1 is closed.When switch is in operating position, working position limits S9
It is closed.When allowing combined floodgate selecting switch to be selected in allows position, first group of contact SV-1 of combined floodgate selecting switch is allowed to be closed, it is continuous to close
When lock restricted part allows to close a floodgate, first group of contact KA-1 of intermediate relay is closed.After above restrictive condition satisfaction, when manual
When being selected in manual with automatic selector switch, manually and automatically first group of contact SA-1 of selecting switch is closed, and can be passed through at this time
Working position switch knob SB2 on control box closes a floodgate to high-voltage switch gear.When manually and automatically selecting switch is selected in
When automatic, manually and automatically second group of contact SA-2 of selecting switch is closed, at this time can be by automatically controlling closing contact
The output of PLC1 closes a floodgate to high-voltage switch gear.At high-voltage switch gear at operating position, pass through the combined floodgate circuit part pair that works
High-voltage switch gear carries out shutting-brake control, can close a floodgate to high-voltage switch gear in the case that load-carrying, starts the electronic load in scene.
High-voltage switch gear separating brake control section, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification,
After control system power switch QL closes.It closes a floodgate and completes in high-voltage switch gear, after the 4th group of switch limit QF4 is closed, receive to come from
Local opening button ST1, control box opening button ST2, automatically control separating brake contact PLC2 separating brake instruction to high-voltage switch gear into
Row separating brake.After trip protection input pressing plate LP inputs, protective relaying device is in protection act by the interface In that trips to height
It compresses switch and carries out separating brake.Signal section, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrification, control system
After system power switch QL closes.In gate-dividing state, second group of switch limit QF2 is closed high-voltage switch gear, local sub-gate signal lamp
HR1, control box sub-gate signal lamp HR2, which power on, to be lighted.High-voltage switch gear is in gate-dividing state to prompt operating personnel at this time.High pressure
In "on" position, the 5th group of switch limit QF5 is closed switch, local switching signal lamp HG1, control box switching signal lamp HG2
Power on and lights.High-voltage switch gear is in "on" position to prompt operating personnel at this time.It is selected in permission when allowing combined floodgate selecting switch
When position, second group of contact SV-2 of combined floodgate selecting switch is allowed to be closed, while when continuous combined floodgate restricted part allows combined floodgate, in
Between second group of contact KA-2 of relay be closed.It is local that switching signal lamp HY1 is allowed to allow switching signal lamp HY2 to connect with control box
Power supply is lighted.High-voltage switch gear has the condition of closing operation to prompt operating personnel at this time.
Continuous combined floodgate restricted part, when from the small busbar of cabinet top positive pole+KM and power cathode-KM electrifications, control
After system power switch QL closes.Third group switch limit QF3 is closed when high-voltage switch gear is in gate-dividing state, turn-on time relay
The timing closing contact KT-1 of the power supply of device KT, time relay KT is closed after the delay time of setting, connect it is intermediate after
The power supply of electric appliance KA, intermediate relay KA action, by be connected to signal section second group of contact KA-2 of intermediate relay and
The closure of first group of contact KA-1 of intermediate relay of high-voltage switch gear shutting-brake control part, combined floodgate limiting unit is sent out to signal section
The combined floodgate divided allows to export and release to limit the combined floodgate of high-voltage switch gear shutting-brake control part work combined floodgate circuit.At high-voltage switch gear
In "on" position, third group switch limit QF3 is disconnected, and the power supply of turn-off time relay KT, the delay of time relay KT is closed
Conjunction contact KT-1 is instantaneously disconnected, intermediate relay KA dead electricity.It is connected to second group of contact KA-2 of intermediate relay of signal section
It is simultaneously switched off with first group of contact KA-1 of intermediate relay of high-voltage switch gear shutting-brake control part, combined floodgate limit is sent out to signal section
The combined floodgate of part processed is forbidden exporting and executing limiting the combined floodgate of high-voltage switch gear shutting-brake control part work combined floodgate circuit.Work as high pressure
After switching load trips or operate in operation separating brake shutdown, can not immediately it be carried out again when high-voltage switch gear is in gate-dividing state
It closes a floodgate and starts.Limit QF3 must be switched in third group to be closed, the power supply of turn-on time relay KT, time relay KT's prolongs
When be closed contact KT-1 and be closed after the delay time of setting, connect the power supply of intermediate relay KA, intermediate relay KA is dynamic
Make, by be connected to signal section second group of contact KA-2 of intermediate relay and high-voltage switch gear shutting-brake control part centre after
The closure of first group of contact KA-1 of electric appliance, the combined floodgate of combined floodgate restricted part is sent out to signal section to be allowed to export and release to high pressure
After the combined floodgate limitation for switching shutting-brake control part work combined floodgate circuit, it can just be worked and be closed by high-voltage switch gear shutting-brake control part
Lock circuit carries out combined floodgate startup to high-voltage load.
The terms such as the "front", "rear" for using expression position relationship in the present embodiment for sake of clarity, wherein " preceding " table
Show that, close to positive pole+KM, " rear " is then indicated close to power cathode-KM.
It is enlightenment, through the above description, relevant work with the above-mentioned desirable embodiment according to the utility model
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (6)
- The high-voltage switch gear control system of limitation 1. a kind of band continuously closes a floodgate, it is characterised in that：It include the electricity from the small busbar of cabinet top Source anode+KM and power cathode-KM, control system power switch QL, high-voltage switch gear shutting-brake control part, high-voltage switch gear separating brake control System part, signal section and restricted part of continuously closing a floodgate, high-voltage switch gear shutting-brake control part, the control of high-voltage switch gear separating brake Partly, signal section and continuous combined floodgate restricted part are connected in parallel on successively between positive pole+KM and power cathode-KM, described Control system power switch QL is connected in the total loop between positive pole+KM and power cathode-KM.
- 2. the high-voltage switch gear control system of the continuous limitation of closing a floodgate of band as described in claim 1, it is characterised in that：The continuous conjunction Lock restricted part includes third group switch limit QF3, time relay KT and intermediate relay KA, the time relay KT strings It is associated in after third group switch limit QF3 and is connected to one circuit of composition between positive pole+KM and power cathode-KM；Institute State that intermediate relay KA is connected on after the timing closing contact KT-1 of time relay KT and control system power supply is passed through at both ends Switch QL is connected to one circuit of composition between positive pole+KM and power cathode-KM.
- 3. the high-voltage switch gear control system of the continuous limitation of closing a floodgate of band as claimed in claim 2, it is characterised in that：The height presses off It includes experiment position limit S8, working position limit S9, experiment position switch knob SB1, working position switch knob to close lock control section SB2, first group of contact SV-1 for allowing combined floodgate selecting switch, manually and automatically first group of contact SA-1 of selecting switch, manually With second group of contact SA-2 of automatic selector switch, automatically control closing contact PLC1, first group of contact KA-1 of intermediate relay, First group of switch limit QF1, energy storage limit S1 and closing coil HQ, the experiment position switch knob SB1 are connected on experiment position limit Experiment combined floodgate circuit part is formed after the S8 of position；The first group of contact SA-1 and working position of the manually and automatically selecting switch are closed It second group of contact SA-2 of lock button SB2 and manually and automatically selecting switch and automatically controls closing contact PLC1 and connects respectively The circuit of parallel connection is connected on first group of contact KA- of first group of contact SV-1 for allowing combined floodgate selecting switch and intermediate relay again afterwards Between 1, tandem working position limits S9 again before first group of contact SV-1 for allowing combined floodgate selecting switch, collectively constitutes work Combined floodgate circuit part；First group is sequentially connected in series after the experiment combined floodgate circuit part is in parallel with work combined floodgate circuit part below to open It closes limit QF1, energy storage limit S1 and closing coil HQ, the closing coil HQ and is connected to electricity by control system power switch QL The common end of source cathode-KM, the experiment position limit S8 and working position limit S9 are connected to by control system power switch QL Positive pole+KM.
- 4. the high-voltage switch gear control system of the continuous limitation of closing a floodgate of band as claimed in claim 2, it is characterised in that：The height presses off Separating brake control section is closed to include local opening button ST1, control box opening button ST2, automatically control separating brake contact PLC2, relay The tripping interface In of protective device, trip protection input pressing plate LP, the 4th group of switch limit QF4 and switching winding TQ, it is described after After tripping interface In and trip protection the input pressing plate LP series connection of electrical protective device again successively with local opening button ST1, behaviour Make case opening button ST2 and automatically control separating brake contact PLC2 parallel connections, being sequentially connected in series the 4th group behind the circuit after parallel connection opens The other end for closing limit QF4 and switching winding TQ, the switching winding TQ is connected to power supply by control system power switch QL Cathode-KM, the local opening button ST1, control box opening button ST2, automatically controls separating brake contact PLC2 and relay protection The common end of the tripping interface In of device is connected to positive pole+KM by control system power switch QL.
- 5. the high-voltage switch gear control system of the continuous limitation of closing a floodgate of band as claimed in claim 2, it is characterised in that：The signal section Divide includes second group of switch limit QF2, local sub-gate signal lamp HR1, control box sub-gate signal lamp HR2, the 5th group of switch limit QF5, local switching signal lamp HG1, control box switching signal lamp HG2, second group of contact KA-2 of intermediate relay, allow to close a floodgate and select The second group of contact SV-2, local permission switching signal lamp HY1 and control box for selecting switch allow switching signal lamp HY2, local to divide It is serially connected in second group of switch limit QF2 later and circuit both ends warp after lock signal lamp HR1 and control box sub-gate signal lamp HR2 parallel connections It crosses control system power switch QL and is connected to one circuit of composition between positive pole+KM and power cathode-KM；The local letter that closes a floodgate It is serially connected in the 5th group of switch limit QF5 later and the process control of circuit both ends after signal lamp HG1 and control box switching signal lamp HG2 parallel connections System power switch QL processed is connected to one circuit of composition between positive pole+KM and power cathode-KM；Locally allow to close a floodgate and believe Signal lamp HY1 and control box are serially connected in second group of contact SV-2 for allowing combined floodgate selecting switch after allowing switching signal lamp HY2 parallel connections Later, second group of contact KA-2 of intermediate relay is serially connected in before second group of contact SV-2 for allowing combined floodgate selecting switch, and two End is connected to one circuit of composition between positive pole+KM and power cathode-KM by control system power switch QL.
- The high-voltage switch gear control system of limitation 6. such as claim 2-5 any one of them band continuously closes a floodgate, it is characterised in that：Institute The time relay stated be electric deferred action type, actuation time can be arranged as required to.
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| CN201820130325.5U CN207781447U (en) | 2018-01-25 | 2018-01-25 | The high-voltage switch gear control system of the continuous limitation of closing a floodgate of band |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346710A (en) * | 2019-07-08 | 2019-10-18 | 贵州电网有限责任公司 | A kind of ring network cabinet outlet starting method for avoiding client from having a power failure |
| CN111338284A (en) * | 2020-04-17 | 2020-06-26 | 中国海洋石油集团有限公司 | On-site control box |
-
2018
- 2018-01-25 CN CN201820130325.5U patent/CN207781447U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346710A (en) * | 2019-07-08 | 2019-10-18 | 贵州电网有限责任公司 | A kind of ring network cabinet outlet starting method for avoiding client from having a power failure |
| CN110346710B (en) * | 2019-07-08 | 2022-04-01 | 贵州电网有限责任公司 | Ring main unit outgoing line starting method for avoiding customer power failure |
| CN111338284A (en) * | 2020-04-17 | 2020-06-26 | 中国海洋石油集团有限公司 | On-site control box |
| CN111338284B (en) * | 2020-04-17 | 2021-03-19 | 中国海洋石油集团有限公司 | On-site control box |
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