CN105097320B - Solid insulation switch and purposes and drive device are pressed in one kind - Google Patents
Solid insulation switch and purposes and drive device are pressed in one kind Download PDFInfo
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- CN105097320B CN105097320B CN201510469649.2A CN201510469649A CN105097320B CN 105097320 B CN105097320 B CN 105097320B CN 201510469649 A CN201510469649 A CN 201510469649A CN 105097320 B CN105097320 B CN 105097320B
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- solid insulation
- insulation switch
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Abstract
The present invention relates to the device that pressure solid insulation switch in solid insulation switch and purposes, a kind of Mechanical Driven is pressed in one kind.Middle pressure solid insulation switch can be formed in two monitoring position voltages by a single casting technique casting.Current sensor can detect the electric current for flowing through insulating body and cut-offfing element, compared with prior art, with sizable advantage.It can be also used for monitoring operation of power networks state and reflect reliable power grid service data.The device of solid insulation switch is pressed in Mechanical Driven, pressure solid insulation switch cut-offs element in being driven by efficient direct solenoid mechanism.The switching mechanism operated using direct solenoid driver, and alternatively possess manual rapid close and break brake function, quick manual closing operation function is peerless in this kind of switch.And after manually operated, mechanism can use the electric current of major loop to carry out automatic energy storage.
Description
Technical field
The present invention relates to the mix insulation sub-device for MV distribution systems, it is adaptable to distribution network, more specifically,
It is related in one kind and presses solid insulation switch and purposes, the device of solid insulation switch is pressed in a kind of Mechanical Driven.
Background technology
By using transmission line, distribution bus, distribution feeder being connected etc., distribution network is generally disappeared power Transmission
Fei Zhe.In general, because electric power can be dispensed by more than one path in distribution network.Depending on region
The availability of property and electric power resource, the configuration of many distribution networks can be powered to user from two or more power supplys.
Distribution network is needed in face of a FAQs：If instantaneous short-circuit occurs in power network somewhere, perhaps electrical power services can
There is of short duration interruption.The reason for causing this kind of failure has：Due to strong wind, instantaneous short circuit, trees or animal drop overhead wire
Phase fault, thunderbolt etc. are caused on exposed electric wire.Under normal circumstances, most of power distribution networks can be all reduced because of list in configuration
Point failure and the possibility for causing a large number of users unregulated power.
In many cases, instantaneous short-circuit Producing reason it is usually because in the arc fault rather than distribution network of transient state forever
The failure of long property, therefore the protection of permanent fuse or breaker is not required.To solve such supply problem, supply of electric power net
Road is commonly provided with Special Equipment, detects such failure, and manage distribution network accordingly, it is ensured that keep in the conceived case most
Big supply of electric power.These special equipments have automatic circuit, sectionaliser and on-load switch.
Automatic circuit is a failure on-off device.Electric current, voltage, and/or frequency can be detected by using it, therefore can
To isolate the failure or excess load section in distribution network.They are commonly provided with a controller, it may be possible to pass through Electronic Control.Weight
Clutch can carry out energy storage in the short time, to carry out repeatedly closing a point operation, so being called " automatic circuit ".Automatic circuit can be with
Transient fault caused by having a power failure for a long time is eliminated, and causes user to dial unnecessary Service Phone.
Many used oily automatic circuits do not need extra power supply to be operated, but use oil as dielectric and behaviour
It is used as power.But, oily automatic circuit needs regularly to repair and have the danger for causing fire.The control of other such device is not
Accurately, because the oil pressure of equipment can change with ambient temperature and oil viscosity.
Sectionaliser is normally mounted at the downstream of an automatic circuit, its function be allow circuit certain part from distribution network
Middle isolation.For in this regard, sectionaliser is similar to automatic circuit, but it is only that folding is carried out in the state of zero load,
Fault current can not be cut-off.Current most sectionaliser is all using SF6 as dielectric, and SF6 is a kind of very serious
Greenhouse gases.
Breaker is considered as the simpler automatic circuit of One function.On-load switch majority is used for folding such as motor
Or capacitor bank load circuit.
It may be considered that preferably administration of power networks can bring higher system operation efficiency, so as to directly reduce electricity
Cost.Therefore increasing power network realizes intelligent management by computer.And intelligent management is realized, Grid manager is just
Need to be grasped more information on voltage, electric current and power factor (PF) in any segmentation of power network.
Operated in addition as more privately owned mechanisms participate in public distribution, this requires more powerful power equipment, such as weighs
Clutch, sectionaliser, breaker and on-load switch etc., to ensure the reliability of power supply quality and power network.
Existing current sensor generally has two kinds, i.e. current transformer or Rogowski coil.
Traditional current transformer is big, the heavier and expensive device of a volume.One traditional current transformer exists
Under high current or excessively in the case of electricity can saturation, and the output of such device is not always linear.Traditional Current Mutual Inductance
Device is generally made up of a Large Fe core and coiling.Want current transformer and cut-off element one-time cast-forming product right and wrong
Often difficult, it usually needs secondary, even 3 times cast, this will increase the manufacturing expense of product.Furthermore, traditional electric current is mutual
The output of sensor is current signal, then changes into again and passes to controller for the voltage signal of monitoring switch state.At present
For, the most frequently used device of electric current is still current transformer in measurement distribution network application.
Rogowski coil is to be used for another device of monitor current in distribution network.It is uniform winding in non-magnet material
Loop coil on material.Tested high-pressure conductor is needed through loop coil.The output signal of Rogowski coil is a voltage, and electric
The electric current for installing circuit above to flowing through is pressed to be directly proportional.
In the case where Rogowski coil is used as current transformer replacement device, problem is that electric current representative flows through the defeated of load
Go out that voltage is very small, and need to be amplified by positive and negative supply of electric power additionally, furthermore such small voltage is easily interfered.
In order to avoid these interference in high voltage environment, it is necessary to extra precautionary measures be taken, even if so that the size of Rogowski coil
The rated current transformer similar less than one, its cost performance is no longer above common current transformer.
The content of the invention
Automatic circuit, sectionaliser, open circuit are may be used as it is an object of the invention to overcome the deficiencies of the prior art and provide one kind
The middle pressure solid insulation switch of device and load switch equipment, and the device of solid insulation switch is pressed in a kind of Mechanical Driven.
Technical scheme is as follows：
Press solid insulation switch in one kind, including insulating body, cut-off in element, current sensor, pull bar, insulating body
Portion is provided with holding tank, and the opening of holding tank is arranged on the bottom of insulating body, cut-offs element and be arranged in holding tank, insulation master
The top surface of body is provided with input terminal, and input of the input terminal with cut-offfing element is connected, and the outer wall of insulating body is additionally provided with defeated
Go out terminal, the output for cut-offfing element is connected by the wall of current－carrying conductor through insulating body with lead-out terminal；Current sensor is buried
It is located in insulating body close to the position of current－carrying conductor；Current sensor extension is connected with coil, and coil is embedded in insulating body
It is interior, and it is orthogonal to current－carrying conductor arrangement；Element is cut-off in the top connection of pull bar, and holding tank is extended in the bottom of pull bar.
Preferably, current sensor provides the voltage output signal for being proportional to the size of current by current－carrying conductor.
Preferably, current sensor is arranged at current－carrying conductor generally 15 millimeters, current sensor position is consolidated
After fixed, current information is provided after calibration.
Preferably, current sensor is provided with radome with coil housing, radome reduces the shelf depreciation of current sensor,
Voltage between radome and earth point is the operating voltage of middle pressure solid insulation switch.
Preferably, being additionally provided with voltage sensor, the two ends of voltage sensor connect input terminal and coil phase respectively
Even, voltage sensor is embedded in insulating body close to the position of input terminal.
Preferably, input terminal includes input connection terminal, input connection support, input connection support is inlaid in insulation
In main body, input connection terminal is connected support with input and is connected；Lead-out terminal includes output connection terminal, output connection support,
The support arm that output connection support stretches out for insulating body, the afterbody of output connection terminal is inlaid in output connection support
Interior, the head of output connection terminal is extended to outside output connection support.
Preferably, be provided with standby output connection terminal, reserve in installing mechanical switch, for control to cut-off element with
The conducting or isolation of power network.
Preferably, insulating body is isolation material one-time cast-forming.
Described middle pressure solid insulation switch, is used as the purposes of automatic circuit, sectionaliser, breaker or on-load switch.
Press the device of solid insulation switch in a kind of Mechanical Driven, the middle pressure solid insulation switch described for driving is opened
Close, including two drivers, and the link gear with the armature linkage of driver, the pull bar and connection of middle pressure solid insulation switch
Motivation structure is connected；Two driver series connection, and mechanically connected；Reset bullet is provided with the armature of one of driver
Spring, when applying forward current to driver, armature advances and drives link gear to press solid insulation switch to close a floodgate in driving, simultaneously
Armature is kept forward travel state and compression reseting spring by electromagnetic action, and back-moving spring produces reset trend；Apply when to driver
Reverse current, electromagnetic action is disappeared, and back-moving spring resets, and pushes back armature, and solid insulation is pressed while driving in link gear driving
Switch separating brake.
Preferably, by the way that the lead of two drivers is in parallel so that the electric loop of the coiling of two impellers is real
Existing parallel connection.
Preferably, being additionally provided with manual closing mechanism, manual closing mechanism includes switch lever, with switch lever successively
Cam, connecting rod, the convex shoulder bearing of linkage, the driving spring with cam linkage；Switch lever band moving cam is rotated to rotate, and to driving
Spring of moving carries out energy storage, and when cam rotation is released to equalization point, driving spring is crossed and drives cam rotation, cam promotes convex
Shoulder bearing moves along a straight line, and then drive link drives the armature of driver to advance, and armature advances and driven in link gear driving
Solid insulation switch is pressed to close a floodgate.
Preferably, being additionally provided with manual brake separating mechanism, manual brake separating mechanism includes separating brake handle, link gear, separating brake
The armature connection of handle and driver, for the armature that retracts, while pressure solid insulation switch point in being driven by link gear structure
Lock.
Preferably, driver is arranged on two side sheet rooms with link gear, link gear includes vertically movable convex shoulder
Bearing, the convex shoulder bearing of horizontal movement, it is corresponding, vertical stopper slot, Horizontal limiting groove, the axle of convex shoulder bearing are offered on side plate
Shoulder is separately positioned on vertical stopper slot, in Horizontal limiting groove, spacing work of the convex shoulder bearing in vertical stopper slot, Horizontal limiting groove
Moved along a straight line under.
Preferably, extending outward installation wing respectively at the top of two side plates, the holding tank of middle pressure solid insulation switch is set
One end of opening is put by screw connection on wing is installed.
Preferably, monitoring high voltage and current by the current sensor of middle pressure solid insulation switch, pass through Current Mutual Inductance
Device obtains power supply from high-pressure side, for driving driver.
Beneficial effects of the present invention are as follows：
Middle pressure solid insulation switch of the present invention be able to can be monitored by master of insulating in two monitoring position voltages
The electric current for cut-offfing element in internal portion, and equipment has reserved location to install guillotine type switch.Described middle pressure solid insulation is opened
Closing can be formed by a single casting technique casting.By size, the high-precision requirement of current measurement and manufacturing cost system
About, the device of prior art is a technical barrier for the electric current in monitoring insulated switch.Current sensor in the present invention
The electric current for flowing through insulating body He cut-offfing element can be detected, compared with prior art, with sizable advantage.The present invention is also
It can be used for monitoring operation of power networks state and reflect reliable power grid service data.
The device of solid insulation switch is pressed in Mechanical Driven of the present invention, is driven by efficient direct solenoid mechanism
Middle pressure solid insulation switch cut-offs element.The switching mechanism operated using direct solenoid driver, and alternatively possess hand
Quick on/off switch function is moved, quick manual closing operation function is peerless in this kind of switch.And after manually operated,
Mechanism can use the electric current of major loop to carry out automatic energy storage.This function allows switch of the present invention in no additional power supply
Also the function of automatic circuit can be realized in the case of supply, this will open new market and application field.In described Mechanical Driven
The device of pressure solid insulation switch can operate multipole switch simultaneously.
It is above-mentioned efficiently, the combination of fast driving device and uniqueness, high-precision current sensor and voltage sensor, also for
Bring new development trend in this area.
Brief description of the drawings
Fig. 1 is the sectional view of middle pressure solid insulation switch；
Fig. 2 is the side view of middle pressure solid insulation switch；
The schematic diagram of current sensor in Fig. 3；
Fig. 4 is the front view of drive device；
Fig. 5 is the upward view of drive device；
Fig. 6 is the stereogram of drive device；
In figure：10 be middle pressure solid insulation switch, and 11 be insulating body, and 111 be holding tank, and 12 be to cut-off element, and 13 are
Current sensor, 131 be coil, and 132 be radome, and 133 be mounting rod, and 14 be pull bar, and 15 be input terminal, and 151 be input
Connection terminal, 152 be input connection support, and 16 be lead-out terminal, and 161 be output connection terminal, and 162 be output connection support,
163 be standby output connection terminal, and 17 be current－carrying conductor, and 18 be voltage sensor, and 19 be power line, and 20 be driver, and 201 are
Armature, 202 be lead, and 21 be back-moving spring, and 22 be side plate, and 221 be to install wing, and 222 be mounting hole, and 223 be vertical stopper slot,
224 be Horizontal limiting groove, and 231 be switch lever, and 232 be cam, and 233 be driving spring, and 234 be connecting lever, and 235 be spacing open
Close, 24 be connecting rod, and 25 be convex shoulder bearing, and 26 be separating brake handle, and 27 be connecting rod.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The present invention provides pressure solid insulation switch 10 in one kind for distribution network, as shown in Figure 1 and Figure 2, including insulating body
11st, element 12 (such as vacuum interrupter), current sensor 13, pull bar 14 are cut-off.The middle part of insulating body 11 is provided with holding tank
111, the opening of holding tank 111 is arranged on the bottom of insulating body 11, cut-offs element 12 and is arranged in holding tank 111, cut-offs member
Part 12 loads holding tank 111 by the form of rear dress.Element 12 is cut-off in the top connection of pull bar 14, and the bottom of pull bar 14 is extended
Holding tank 111.
The top surface of insulating body 11 is provided with input terminal 14 (being connected with incoming line in distribution network), input
Sub 14 input with cut-offfing element 12 is connected, the outer wall of insulating body 11 be additionally provided with lead-out terminal 16 (with it is defeated in distribution network
Go out circuit to be connected), distribution network can provide electric power for the downstream of middle pressure solid insulation switch 10.Cut-off the output of element 12
It is connected by the wall of current－carrying conductor 17 through insulating body 11 with lead-out terminal 16, for cut-offfing from input terminal 14 to output end
The electric current of son 16.Electric current is by current－carrying conductor 17 and cut-offs insulation master of the element 12 between input terminal 14 and lead-out terminal 16
Circulated in body 11.Electric current is by input terminal 14 and cut-offs element 12, then flows through current－carrying conductor 17 by cut-offfing element 12 and reach defeated
Go out terminal 16, be path of the electric current in middle pressure solid insulation switch 10.
In the present embodiment, input terminal 14 includes input connection terminal 151, input connection support 152, input connection support
152 are inlaid in insulating body 11, and input connection terminal 151 is connected support 152 with input and is connected；Lead-out terminal 16 includes output
Connection terminal 161, output connection support 162, output connection support 162 are the support arm that insulating body 11 stretches out, output
The afterbody of connection terminal 161 is inlaid in output connection support 162, and the head of output connection terminal 161 extends to output connection
Outside support 162.
Current sensor 13 is embedded in insulating body 11 close to the position of current－carrying conductor 17, for pressing solid exhausted in detection
The operating current of edge switch 10.In the present embodiment, current sensor 13 is arranged at current－carrying conductor 17 generally 15 millimeters,
After the position of current sensor 13 is fixed, accurate current information just can be provided after calibration.The extension connection of current sensor 13
There is coil 131, coil 131 is embedded in insulating body 11, and be orthogonal to current－carrying conductor 17 and arrange, for measuring by master of insulating
The electric current for cut-offfing element 12 inside body 11.As shown in figure 3, the coil 131 that the circuit of power line 19 passes through current sensor 13.
Current－carrying conductor 17 is located within ground shield 132, and mounting rod 133 prolongs since positioned at the coil 131 with sensor herein
Stretch.As can be seen that the current sensor by being embedded in one and sense of current quadrature arrangement in middle pressure solid insulation switch 10
13, compared to prior art, with sizable advantage.
Current sensor 13 is covered with radome 132 with coil 131, and radome 132 reduces the part of current sensor 13
Electric discharge, the voltage between radome 132 and earth point is the operating voltage of middle pressure solid insulation switch 10.
In order to overcome the shortcomings of that traditional current transformer or Rogowski coil 131 are present, current sensor 13 of the invention
Using simpler amperometric, it is possible to export the voltage signal that is directly proportional to measurement electric current one higher.Output voltage
Signal is higher, it is allowed to which the mounting distance of controller is more remote.Above-mentioned high output voltage signal, even if controller is apart from current sense
Device 13 is several meters remote equally being capable of normal work.And because the signal that Rogowski coil 131 is exported is very faint and is easily disturbed, so
Controller (or arithmetic unit) must be close away from Rogowski coil 131.
Specifically, current sensor 13 is accomplished by the following way.
The current sensor 13 of the present invention includes an empty coiling 131.The diameter of coil 131 is about 2.5 centimetres and length
About 5 centimetres, have copper wire winding that about 3000 circle sectional areas are 0.05~0.10mm or so into.Therefore, current sensor 13
It is cast in insulating body 11, and places 1.5 centimetres of the quadrature position positioned at current－carrying conductor 17.Using described electric current
The structure of sensor 13, can export three ten-day period of hot season output signal, the voltage of output signal is with flowing through the electric current of current－carrying conductor 17 into just
Than.Based on the current sensor 13 of the present invention, the essence that coil 131 is exported is often with electric current into ratio.The phase of current sensor 13
Mode and position mode for monitoring conductor is also extremely important.Therefore, current sensor 13 is needed to put in place,
And it is orthogonal with monitoring current direction, the magnetic line of force produced by the electric current of neighbouring phase will be parallel in current sensor 13, so that will not
Influence the output of current sensor 13.
For example, in the case where 50 peace times electric currents are through middle pressure solid insulation switch 10, current sensor 13 of the invention
Induce 1 volt of output voltage.If as the electric current increase for flowing through current－carrying conductor 17 so that the reading of current sensor 13
For 100 volts, then can determine that the electric current in current－carrying conductor 17 increases 5000 amperes.Due to output signal relatively more
By force, so the current sensor 13 of the present invention is applicable to the measurement to 5A~20000A electric currents.Therefore, if Rogowski coil
The current sensor 13 that 131 output belongs in a millivolt rank, the present invention will can produce the voltage similar to 100 volts, and this is complete
Microprocessor can be transmitted directly to entirely.Moreover, the coil 131 of current sensor 13 is by non magnetic ground shield
132 are shielded, therefore, and the problem of producing shelf depreciation because near apart from high-voltage conductor is not had.And identical is in order to shield
Rogowski coil 131 avoids shelf depreciation, it would be desirable to a huge radome 132.
It is worth noting that, in " validation test " or " type test ", the potential electric discharge of component need to be measured, and often
The testing standard for the switch standard pressed in one need to be determined being passed to standard testing.Therefore, current sense of the invention
Device 13, which provides a kind of simple method, can realize this standard.
Therefore, different from the solution of Rogowski coil 131, current sensor 13 of the invention does not simultaneously need voltage amplification
Device.And because the voltage of output is higher, so as to there is seldom interference produced by electric power noise.It is also understood that one
The individual common voltage amplifier for Rogowski coil 131 is an integrator computing unit, the amplification of the required voltage of Rogowski coil 131
Integrator computing unit needs an independent AC power.Current sensor 13 in the present invention does not simultaneously need integrator computing unit, because
This, it is not necessary to extra supply of electric power.
The overall cost cost of current sensor 13 of the present invention is lower.Compared with current transformer, its volume is smaller.It is small-sized
The volume of change can reduce production in press solid insulation switch 10 expense, therefore, the present invention with more open new markets and
The potentiality of wide popularization and application.
Current sensor 13 provides the voltage output signal for being proportional to the size of current by current－carrying conductor 17, and need not
Additional amplifier amplifies output voltage.
Described middle pressure solid insulation switch 10 is additionally provided with voltage sensor 18, for pressing solid insulation switch in detection
10 operating voltage, the two ends of voltage sensor 18 connect input terminal 14 and are connected with coil 131 respectively, and voltage sensor 18 is buried
It is located in insulating body 11 close to the position of input terminal 14.
The present invention is additionally provided with standby output connection terminal 163, reserves in installing mechanical switch, realizes the He of lead-out terminal 16
The isolation of input terminal 14.Described mechanical switch can be a guillotine type switch, realize that member is cut-off in control by on/off switch
The conducting of part 12 and power network is isolated, it is possible to achieve even if also possessing reliable isolation fracture in the case of without SF6.
The insulating body 11 of the present invention is isolation material one-time cast-forming.In the present embodiment, the cast of insulating body 11
Material can be epoxy resin, and further, the epoxy resin can be hydrophobic alicyclic epoxy (HCEP).
Described middle pressure solid insulation switch 10 can be taken as automatic circuit, sectionaliser, open circuit in conventional electrical distribution network
Device or on-load switch are used.And according to different use requirements, middle pressure solid insulation switch 10 can carry out different configurations.
As automatic circuit, the insulating body 11 of middle pressure solid insulation switch 10 is more economical, and suitable for being embedded in insulation
Current sensor 13 in main body 11 realizes that the scheme of current measurement is also more economical.Current sensor 13 can also measure work(simultaneously
Rate factor, so as to cancel the extra current sensor 13 that capacitive is cut-off that is used for.For its essence, it is equal to automatic circuit and is furnished with
Two voltage sensors 18, can provide more information about electric power networks state for Grid manager.As can preferred form of this,
Automatic circuit can select the device by a low-power to be powered, such as one current transformer (but its actual current is still
Still monitored by current sensor 13) or one piece of solar panels.Because current sensor 13 can provide good to controller
Good voltage signal, without amplifier or a complicated integrating circuit.Solid insulation is pressed to open in following Mechanical Drivens
Closing 10 device also only needs low-down operation power.
As a sectionaliser, middle pressure solid insulation switch 10 does not simultaneously need SF6 gas-insulated mediums, so that cut-offfing member
The conjunction of part 12 point operation can be completed easily in millisecond.Time several seconds is needed to complete to close with traditional SF6 sectionalisers
Compare, there is thousands of times of raising.Furthermore, central pressure solid insulation switch 10 by as sectionaliser in use, can folding failure electricity
Stream, and conventional segmented device does not possess this function then.In the prior art, automatic circuit disconnects fault current and then before closed circuit
Sectionaliser is waited to disconnect.It is to be understood that the sectionaliser of fault current can be disconnected by providing can save a large number of expense
With.Because guillotine type switch can not only provide 100% reliable electric insulation, additionally it is possible to provide visible disconnection to operator and refer to
Show.
As an on-load switch, middle pressure solid insulation switch 10 does not only have an inexpensive insulating body 11, and
The power for flowing through middle pressure solid insulation switch 10 can also be measured, the situation of each phase is preferably monitored.Accordingly, it is capable to go out in failure
Failure is predicted before now, so as to reduce expenses.Monitored for intermediate voltage capacitor group or/and electric motor loop running situation, this
The described middle pressure solid insulation switch 10 of invention is particularly useful.Because by configuring suitable controller, can measure a certain
Whether the equipment of phase starts failure, is all suitable for for triangle joint system and star-like system.
In addition, middle pressure solid insulation switch 10 of the present invention can be additionally used in pilot switch close phase, so as to change
Enter power quality.
The present invention also provides the device (calling drive device 30 in the following text) that solid insulation switch 10 is pressed in a kind of Mechanical Driven, is used for
The folding of the described middle pressure solid insulation switch 10 of driving, as shown in Fig. 4, Fig. 5, Fig. 6, described drive device 30 is used to operate
The middle pressure solid insulation switch 10 of three-phase, naturally it is also possible to be any one of single-phase, two-phase or three-phase.Drive device 30
Including two drivers 20, and the link gear with the linkage of armature 201 of driver 20, the drawing of middle pressure solid insulation switch 10
Bar 14 is connected with link gear；Two drivers 20 are installed in series, and are mechanically connected；The present invention is relatively small with two
Driver 20 replaces a relatively large driver 20, it is therefore intended that improve efficiency.The element 12 that cut-offs in insulating body 11 leads to
Efficient direct solenoid driver 20 is crossed to drive.
Be provided with back-moving spring 21 on the armature 201 of one of driver 20, when to driver 20 apply forward current,
Armature 201 advances and drives link gear to press solid insulation switch 10 to close a floodgate in driving, while armature 201 is kept by electromagnetic action
Forward travel state and compression reseting spring 21, back-moving spring 21 produce reset trend；When to the application reverse current of driver 20, electromagnetism
Event resolves, back-moving spring 21 is resetted, and pushes back armature 201, and 10 points of solid insulation switch is pressed while driving in link gear driving
Lock.
The operation principle of direct solenoid driver 20 is as follows：When a DC low-voltage electric pulse by the copper of driver 20 around
Line, copper coiling produces the magnetic field that driving driver 20 inner armature 201 moves along a straight line.Armature 201 moves to default position, and
Maintained by permanent magnet.In the present invention, armature 201 travels forward compression reseting spring 21.Back-moving spring 21 is by compression storage
Energy by for it is middle pressure solid insulation switch 10 separating brake.Driver 20 drives connecting rod 24 to make by the mechanical connection of link gear
Move up and down.Connecting rod 24 is connected with the pull bar 14 inside insulating body 11, and is moved together.
Driver 20 and link gear are arranged between two side plates 22, because the power in side plate 22 can be controlled preferably
System, two drivers 20 are separated and mechanically connected with connecting rod 27, can mitigate the weight of drive device 30.Drive device
The service speed of 30 centerings pressure solid insulation switch 10 is about 1m/s.Actuation time is about 15 milliseconds.Therefore, drive device 30 is got over
Gently, controllability is better.Similar switch of the prior art is generally with driver 20 one large-scale, then controllability is poor.
Two relatively small drivers 20 with respect to for one large-scale driver 20, motion faster, and being used for of needing
Grasp work smaller.Reason is square being inversely proportional for magnetic field and diameter, if the diameter of large-scale driver 20 is than small driver 20
Big 2 times, then the magnetic manipulation field that realizing same movement needs needs big 4 times, i.e. the magnetic manipulation field needed for driver 20 one small
For the 25% of large-scale driver 20.So output same operation power, the operating work needed for driver 20 two small is big for one
The 50% of type driver 20.This be for master-plan and low voltage control components to controller it is very favorable, therefore, this
Invention presses the closing retention force of solid insulation switch 10 in driver 20 two small simultaneously offer.Further, small driver
20 application can also reduce permanent magnet and machining cost.
By the way that the lead 202 of two drivers 20 is in parallel so that the electric loop of the coiling of two impellers is realized simultaneously
Connection.The lead 202 of two drivers 20 is connected in parallel, then driving total voltage is relatively low, and the diameter of the internal copper coiling of driver 20 can
With smaller.The air gap of thin copper coiling is less with respect to for thick line, can also improve operating efficiency, and reduce work(needed for operation
Rate.
Drive device 30 of the present invention is additionally provided with manual closing mechanism and manual brake separating mechanism.Manual closing mechanism
Including switch lever 231, the cam 232 linked successively with switch lever 231, connecting rod 24, convex shoulder bearing 25, with cam 232
Dynamic driving spring 233；Rotate switch lever 231 to rotate with moving cam 232, and energy storage is carried out to driving spring 233, work as cam
232 turn to and cross equalization point, and driving spring 233 is released and rotated with moving cam 232, and cam 232 promotes convex shoulder bearing 25
Linear motion, and then drive link 24 drives the armature 201 of driver 20 to advance, armature 201 advances and drives link gear to drive
Pressure solid insulation switch 10 closes a floodgate in dynamic.Drive device 30 need not be used presses solid with any gear to realize in quick crowbar
Insulated switch 10.
Manual brake separating mechanism includes separating brake handle 26, link gear, and the armature 201 of separating brake handle 26 and driver 20 connects
Connect, for the armature 201 that retracts, while pressing the separating brake of solid insulation switch 10 in being driven by link gear structure.
Manual brake separating mechanism carries out closing by switch lever 231 to realize.Rotating switch lever 231 can compress
Driving spring 233, driving spring 233 carries out energy storage.In the present embodiment, two unilateral bearings are also equipped with, to ensure to drive bullet
Spring 233 will not drive switch lever 231 to rotate backward, and then can progressively rotate switch lever 231, and without Dispensable continuous
Apply the power rotated until the operation of closing by hand is completed.Operation switch lever 231 rotates with moving cam 232, driving spring 233
Carry out energy storage.When cam 232 is when moving to more than equalization point, driving spring 233 is released and quickly turned with moving cam 232
It is dynamic.Cam 232 promotes convex shoulder bearing 25 to move along a straight line, and drive connection bar 27 drives in the quick motion closure of driver 20 and presses solid
Body insulated switch 10.By pressing solid insulation switch 10 during closing to the profile design of cam 232, in can controlling, swash
Device 20 is encouraged to bounce without closing a floodgate.Required under the pressure "on" position of solid insulation switch 10 during the armature 201 of driver 20 is reached
During position, armature 201 is maintained at default position by permanent magnet, and then middle pressure solid insulation switch 10 just is maintained at into combined floodgate shape
State.
Driver 20 and link gear are arranged between two side plates 22, and link gear includes vertically movable convex shoulder bearing
25th, the convex shoulder bearing 25 of horizontal movement, corresponding, and vertical stopper slot 223, Horizontal limiting groove 224, convex shoulder are offered on side plate 22
The shaft shoulder of bearing 25 is separately positioned on vertical stopper slot 223, in Horizontal limiting groove 224, and convex shoulder bearing 25 is in vertical stopper slot
223rd, moved along a straight line under the position-limiting action in Horizontal limiting groove 224.In the present embodiment, link gear is provided with two cams
232 and two convex shoulder bearings 25, it is ensured that in motion lateral sliding will not occur for convex shoulder bearing 25, also cause the pressure of contact surface
Power is reduced and reached uniform.In the present embodiment, connecting lever 234 is additionally provided with, connecting lever 234 is connected linkage with cam 232, for referring to
Show driving spring 233 whether energy storage.
Convex shoulder bearing 25 can be rolled and slided in the vertical stopper slot 223 and Horizontal limiting groove 224 of side plate 22.It is existing
Technology is fixed generally by split pin or packing ring to convex shoulder bearing 25.In the present invention, convex shoulder bearing 25 is located in side plate 22
The diameter of side is bigger, it is ensured that convex shoulder bearing 25 will not laterally skid off side plate 22, will also improve efficiency of assembling, reduce part sum with
And offer slides laterally the free degree.Assembly method is that side plate 22 first is fixed on into workbench, and all parts are placed on into corresponding positions
Another side plate 22 of assembling is postponed, is fixed finally by nut.After mechanism is assembled, can to driving spring 233 and each zero
The junction of part is adjusted.Because all parts are all fixed by two side plates 22, so the process letter of alignment and assembling
It is single and efficient, save welding and preassembled process.The assembly method of prior art is then welded firstly the need of in mounting bracket
Some parts, are then installed again.
Two tops of side plate 22 extend outward installation wing 221 respectively, install and are provided with mounting hole 222, middle pressure on wing 221
The holding tank 111 of solid insulation switch 10 sets the one end being open by screw connection on wing 221 is installed.Drive device 30
All parts and middle pressure solid insulation switch 10, and its connection need not be welded.
The implementation of the driver 20 of drive device 30 and the technical scheme of side plate 22, can make whole drive device 30
Primary clustering is individually assembled, and solid insulation switch 10 can be pressed in being not provided with, and is assembled in two side plates 22
Before process, it is possible to tested.All operating physical forces are all between middle pressure solid insulation switch 10 and two side plates 22.Separately
Outside, because drive device 30 has been a standalone feature entirety, thus it is middle pressure solid insulation switch 10 insulating body 11 by
Power is very small, therefore choice requirement is relatively low, because insulating body 11, which is only required, reaches certain degree of protection, and has enough
Solid insulation switch 10 itself is pressed in strength support.
Manual brake separating mechanism is separate with manual closing mechanism, if not needing closing by hand function, is not provided with manually
Switching-on mechanism, can't influence electric operating and the manual brake separating operation of drive device 30.
Back-moving spring 21 is used for the operating energy needed for the pressure separating brake of solid insulation switch 10 in storing.Driver 20 is applied
One reverse current, switch, which closes a floodgate, keeps magnetic force to disappear, and back-moving spring 21 presses the separating brake of solid insulation switch 10 in driving.Though
Right drive device 30 closely, but is very easy to the adjustment of pull bar 14.Vertical stopper slot 223 is matched somebody with somebody with convex shoulder bearing 25
Close, it is ensured that pull bar 14 is moved along a straight line.Similarly, the cooperation of Horizontal limiting groove 224 and convex shoulder bearing 25, it is ensured that driver 20
Armature 201 is moved along a straight line.In order to reach the effect being further accurately positioned, manual closing mechanism also includes limit switch
235。
After drive device 30 is connected with middle pressure solid insulation switch 10, passed by the electric current of middle pressure solid insulation switch 10
Sensor 13 monitors high voltage and current, power supply is obtained from high-pressure side by current transformer, for driving driver 20.
Above-described embodiment is intended merely to the explanation present invention, and is not used as limitation of the invention.As long as according to this hair
Bright technical spirit, is changed, modification etc. will all fall in the range of the claim of the present invention to above-described embodiment.
Claims (14)
1. the device of solid insulation switch is pressed in a kind of Mechanical Driven, it is characterised in that for pressing solid insulation switch in driving
Folding, including two drivers, and the link gear with the armature linkage of driver, the pull bar of middle pressure solid insulation switch
It is connected with link gear；Two driver series connection, and mechanically connected；It is provided with the armature of one of driver multiple
Position spring, when applying forward current to driver, armature advances and drives link gear to press solid insulation switch to close a floodgate in driving,
Armature is kept forward travel state and compression reseting spring by electromagnetic action simultaneously, and back-moving spring produces reset trend；When to driver
Apply reverse current, electromagnetic action disappears, and back-moving spring resets, and pushes back armature, solid is pressed while driving in link gear driving
Insulated switch separating brake；
Middle pressure solid insulation switch includes insulating body, cut-offs element, current sensor, pull bar, and insulating body middle part is provided with
Holding tank, the opening of holding tank is arranged on the bottom of insulating body, cut-offs element and is arranged in holding tank, the top surface of insulating body
Input terminal is provided with, input of the input terminal with cut-offfing element is connected, and the outer wall of insulating body is additionally provided with lead-out terminal, opens
The output of disconnected element is connected by the wall of current－carrying conductor through insulating body with lead-out terminal；Current sensor is embedded in insulation master
In vivo close to the position of current－carrying conductor；Current sensor extension is connected with coil, and coil is embedded in insulating body, and is orthogonal to
Current－carrying conductor is arranged；Element is cut-off in the top connection of pull bar, and holding tank is extended in the bottom of pull bar.
2. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that current sensor
The voltage output signal for being proportional to the size of current by current－carrying conductor is provided.
3. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that current sensor
Installed at current－carrying conductor generally 15 millimeters, after current sensor position is fixed, current information is provided after calibration.
4. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that current sensor
Radome is provided with coil housing, radome reduces the shelf depreciation of current sensor, and the voltage between radome and earth point is
The operating voltage of middle pressure solid insulation switch.
5. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that be additionally provided with electricity
Pressure sensor, the two ends of voltage sensor connect input terminal and coil respectively, and voltage sensor is embedded in insulating body and is inscribed
The position of nearly input terminal.
6. the device of solid insulation switch is pressed in Mechanical Driven according to claim 4, it is characterised in that input attached bag
Input connection terminal, input connection support are included, input connection support is inlaid in insulating body, and input connection terminal connects with input
Support is connect to be connected；Lead-out terminal includes output connection terminal, output connection support, and output connection support is insulating body to extension
The support arm stretched, output connection terminal afterbody be inlaid in output connection support in, output connection terminal head extend to it is defeated
Go out connection support outer.
7. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that be provided with standby
Connection terminal is exported, is reserved in installing mechanical switch, is cut-off the conducting of element and power network for control or isolate.
8. the device of solid insulation switch is pressed in Mechanical Driven according to claim 1, it is characterised in that insulating body is
Isolation material one-time cast-forming.
9. the device of solid insulation switch is pressed in the Mechanical Driven according to any one of claim 1 to 8, it is characterised in that
By the way that the lead of two drivers is in parallel so that the electric loop of the coiling of two impellers is realized in parallel.
10. the device of solid insulation switch is pressed in the Mechanical Driven according to any one of claim 1 to 8, it is characterised in that
Be additionally provided with manual closing mechanism, manual closing mechanism includes switch lever, the cam linked successively with switch lever, connecting rod,
Convex shoulder bearing, the driving spring with cam linkage；Rotate switch lever band moving cam to rotate, and energy storage carried out to driving spring,
When cam rotation is released to equalization point, driving spring is crossed and drives cam rotation, cam promotes convex shoulder bearing linear motion,
And then drive link drives the armature of driver to advance, armature advances and drives link gear to press solid insulation switch to close in driving
Lock.
11. the device of solid insulation switch is pressed in the Mechanical Driven according to any one of claim 1 to 8, it is characterised in that
Manual brake separating mechanism is additionally provided with, manual brake separating mechanism includes the armature of separating brake handle, link gear, separating brake handle and driver
Connection, for the armature that retracts, while pressing solid insulation switch separating brake in being driven by link gear structure.
12. the device of solid insulation switch is pressed in the Mechanical Driven according to any one of claim 1 to 8, it is characterised in that
Driver and link gear are arranged on two side sheet rooms, link gear include vertically movable convex shoulder bearing, horizontal movement it is convex
Shoulder bearing, it is corresponding, vertical stopper slot, Horizontal limiting groove are offered on side plate, the shaft shoulder of convex shoulder bearing is separately positioned on vertically
In stopper slot, Horizontal limiting groove, straight line fortune is carried out under position-limiting action of the convex shoulder bearing in vertical stopper slot, Horizontal limiting groove
It is dynamic.
13. the device of solid insulation switch is pressed in Mechanical Driven according to claim 12, it is characterised in that two side plates
Top extends outward installation wing respectively, and the holding tank of middle pressure solid insulation switch sets one end of opening to exist by screw connection
Install on wing.
14. the device of solid insulation switch is pressed in the Mechanical Driven according to any one of claim 1 to 8, it is characterised in that
High voltage and current is monitored by the current sensor of middle pressure solid insulation switch, electricity is obtained from high-pressure side by current transformer
Source, for driving driver.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469649.2A CN105097320B (en) | 2015-08-04 | 2015-08-04 | Solid insulation switch and purposes and drive device are pressed in one kind |
| PCT/CN2016/088621 WO2017020675A1 (en) | 2015-08-04 | 2016-07-05 | Medium voltage solid insulated switch, use thereof and driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469649.2A CN105097320B (en) | 2015-08-04 | 2015-08-04 | Solid insulation switch and purposes and drive device are pressed in one kind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105097320A CN105097320A (en) | 2015-11-25 |
| CN105097320B true CN105097320B (en) | 2017-10-03 |
Family
ID=54577527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510469649.2A Active CN105097320B (en) | 2015-08-04 | 2015-08-04 | Solid insulation switch and purposes and drive device are pressed in one kind |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105097320B (en) |
| WO (1) | WO2017020675A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097320B (en) * | 2015-08-04 | 2017-10-03 | 爱启（厦门）电气技术有限公司 | Solid insulation switch and purposes and drive device are pressed in one kind |
| CN108400054A (en) * | 2018-04-04 | 2018-08-14 | 广西配网电力技术有限公司 | A kind of outdoor vacuum circuit breaker control system |
| CN111403969A (en) * | 2020-04-17 | 2020-07-10 | 宁波奥克斯电气股份有限公司 | Socket and automatic opening and closing control method thereof |
| CN111863508A (en) * | 2020-06-18 | 2020-10-30 | 上海置信智能电气有限公司 | One-time and two-time depth integrated circuit breaker on connection column |
| CN111834103A (en) * | 2020-08-26 | 2020-10-27 | 成都大互电器有限公司 | Intelligent protection combined transformer |
| CN112164567A (en) * | 2020-10-27 | 2021-01-01 | 衡阳华瑞电气有限公司 | Quick assembly mechanism for outdoor type current transformer and quick assembly method thereof |
| CN117012570B (en) * | 2023-10-07 | 2024-01-09 | 中宝电气有限公司 | Power taking device of power distribution switch monitoring terminal and solid-sealed pole of power taking device |
| CN117878568B (en) * | 2024-03-11 | 2024-05-07 | 泰兴市东盛通讯器材有限公司 | High-stability antenna device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08287796A (en) * | 1995-04-18 | 1996-11-01 | Mitsubishi Electric Corp | Vacuum electromagnetic contactor |
| US7239490B2 (en) * | 2003-09-22 | 2007-07-03 | Eaton Corporation | Medium voltage vacuum circuit interrupter |
| CN101162659A (en) * | 2006-10-13 | 2008-04-16 | Abb技术有限公司 | Switch installation used for electrical power system |
| CN201918307U (en) * | 2011-01-28 | 2011-08-03 | 湖北网安科技有限公司 | Buffering type immobilization insulating permanent magnet outdoor high-voltage vacuum circuit breaker |
| CN202268288U (en) * | 2011-09-28 | 2012-06-06 | 江苏中成辉锐电气有限公司 | Outdoor solid sealing pole column |
| CN202363347U (en) * | 2011-11-03 | 2012-08-01 | 北京电研华源电力技术有限公司 | Packed pole for outdoor vacuum circuit breaker |
| CN202534582U (en) * | 2012-04-25 | 2012-11-14 | 上海东自电气有限公司 | Embedded pole of built-in voltage sensor |
| CN105097146A (en) * | 2014-05-07 | 2015-11-25 | 澳大利亚电气制造有限公司 | Medium voltage mixed insulator apparatus |
| CN105097320B (en) * | 2015-08-04 | 2017-10-03 | 爱启（厦门）电气技术有限公司 | Solid insulation switch and purposes and drive device are pressed in one kind |
| CN204857503U (en) * | 2015-08-04 | 2015-12-09 | 爱启（厦门）电气技术有限公司 | Middling pressure solid insulation switch and drive arrangement |
-
2015
- 2015-08-04 CN CN201510469649.2A patent/CN105097320B/en active Active
-
2016
- 2016-07-05 WO PCT/CN2016/088621 patent/WO2017020675A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN105097320A (en) | 2015-11-25 |
| WO2017020675A1 (en) | 2017-02-09 |
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