CN107872048A - High pressure double breaking points intelligent switch - Google Patents
High pressure double breaking points intelligent switch Download PDFInfo
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- CN107872048A CN107872048A CN201711100446.1A CN201711100446A CN107872048A CN 107872048 A CN107872048 A CN 107872048A CN 201711100446 A CN201711100446 A CN 201711100446A CN 107872048 A CN107872048 A CN 107872048A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
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Abstract
The invention provides a kind of high pressure double breaking points intelligent switch, including：Double breaking points primary cut-out, voltage and current detecting device, Weight detector, A/D converters, point of zero voltage controller, current zero controller, breaking driver, system protection controller, DSP intelligent controllers.The present invention carries out high speed detection by DSP intelligent controllers to mains-power circuit and load voltage electric current, the zero crossing of the three-phase voltage current by breaker is calculated according to the voltage-current characteristic of power network and load, breaking driver and high pressure dual-interruption point breaker are controlled by DSP intelligent controllers, high pressure dual-interruption point breaker is set to close and disconnect at the Three-phase Power Systems voltage zero crossing moment, electric arc is not produced, also overvoltage is not produced, power network is set not produce impact and float, make power system reliable with load stabilization, make the high-voltage switch gear not scaling loss because of electric arc, improve stability and life-span of the switch to related electrical equipment, improve load capacity.
Description
Technical field
The present invention relates to technical field of power systems, in particular it relates to high pressure double breaking points intelligent switch.
Background technology
With high-voltage large-capacity power system development, high-voltage large current power system on-load input and excision breaker
Caused hard arc can produce enormous impact and harm with overvoltage to power system.
Through retrieval
Notification number is CN2399819, entitled：High voltage combined switch, a kind of high voltage combined switch is disclosed, by static contact
Deng composition, there is an insulation rotating disk, the circumference of insulation rotating disk is provided with one section of contact for doing moving contact, remainder is exhausted
Embolium, the static contact being engaged with contact is provided with the outside of insulation rotating disk.
Notification number is CN200997496Y, entitled a kind of moveable high-voltage switchgear of band bypass, by bypass cabinet and feedback
Offer for sale composition.There are main bus-bar, vacuum circuit-breaker handcart, the electricity of identical with existing switch cubicle structure and annexation in bypass cabinet
Current transformer, relay, disconnecting switch.Except that the bypass chamber of increase installation hospital bus bar, the output end of disconnecting switch
Connect hospital bus bar.Feed out the main bus-bar for having identical with existing switch cubicle structure and annexation in cabinet, vacuum circuit-breaker handcart,
Current transformer, relay, disconnecting switch.The change made is increase bypass chamber, in bypass indoor location hospital bus bar and is connect
Bypass isolating switch on hospital bus bar, another termination feed-out cable of bypass isolating switch.
Notification number is CN201038040Y patents, entitled：Double-column horizontal rotary isolation switch, it is used in power system
To isolate the switchgear of charging equipment and power failure equipments；It includes two support insulators being supported on base, Yi Jishe
The intertie between two support insulators is put, it is also supported on master end support insulator top flange axle including one
On transposition transmission mechanism, described transposition transmission mechanism is connected by a drive link through conductive arm with a main contact；
In described master end support insulator lower end flange shaft support a spacing de- mouth device, described spacing de- mouth device with
Intertie is hinged.
But such scheme can not solve to cut off hard arc and overvoltage problem caused by breaker from source,
To the work condition environment bad adaptability of load change.
The content of the invention
For in the prior art the defects of, it is an object of the invention to provide a kind of high pressure double breaking points intelligent switch.
According to high pressure double breaking points intelligent switch provided by the invention, including：Double breaking points primary cut-out 10, voltage x current inspection
Survey device 20, Weight detector 30, A/D converters 40, point of zero voltage controller 50, current zero controller 60, breaker
Drive device 70, Digital Signal Processing (Digital Signal Processing, DSP) intelligent controller 100；Wherein：
The voltage and current detecting device 20, for detecting the voltage x current of power system, and the fortune of the power system
Row state, and be that the first low-voltage analog signal is transferred to the A/D converters 40 by the Voltage to current transducer of the power system；
Weight detector 30, for detecting the voltage x current of load system corresponding to power system, and the load system
The running status and characteristic of system, and be that the second low-voltage analog signal is transferred to the A/ by the Voltage to current transducer of the load system
D converters 40；
The A/D converters 40, for first low-voltage analog signal, the second low-voltage analog signal to be converted to accordingly
The first data signal, be transferred to DSP intelligent controllers 100 after the second data signal；
The DSP intelligent controllers 100, for according to first data signal, the second Digital Signal Analysis power train
The running status of system and load system, obtains the frequency, phase, amplitude of the voltage x current of power system, and pass through point of zero voltage
Controller 50, current zero controller 60 obtain Three-phase Power Systems voltage x current zero crossing, so that Three-phase Power Systems voltage
Electric current was crossed at the zero point moment, controlled double breaking points primary cut-out 10 to close or disconnect by breaker drive device 70.
Alternatively, in addition to：System protection controller 80, Alarm Communication device 90, the system protection controller 80 are used
When in power system or load system failure, driving double breaking points primary cut-out 10 disconnects, and passes through Alarm Communication
Device 90 sends alarm.
Alternatively, the DSP intelligent controllers 100 include：DSP signal processors, DSP control instructions arithmetic unit, DSP systems
Blanket insurance protects instruction calculator, wherein：
The DSP signal processors, for the running status of power system and load system to be analyzed and shown, with
And according to the first data signal and the second data signal received, calculate the voltage x current of power system and load system
Frequency, amplitude and phase；
The DSP control instructions arithmetic unit, for being crossed in Three-phase Power Systems voltage x current at the zero point moment, generate to electricity
Press zero circuit 50, current zero controller 60, the control instruction of breaker drive device 70；So that breaker drive device
70 are crossed at the zero point moment in Three-phase Power Systems voltage x current, and double breaking points primary cut-out is controlled by breaker drive device 70
10 closures disconnect；
The dsp system protects instruction calculator, for exceeding in advance in power system, or the voltage x current of load system
If higher limit when, or when power system exceedes preset upper limit temperature, generate the control instruction to system protection controller 80,
So that system protection controller 80 drives double breaking points primary cut-out 10 to disconnect, and alarm is sent by Alarm Communication device 90.
Alternatively, the voltage and current detecting device 20 includes：Voltage detecting converter converts with current/voltage Hall
Device；The Weight detector 30 includes：Load voltage detection means and current/voltage hall converter.
Alternatively, the DSP intelligent controllers 100 are specifically used for：
After obtaining the A phases breaker closing of double breaking points primary cut-out 10 or disconnecting, B phases and the C phases electricity of power system
The rule and variable quantity that pressure changes with current phase with load characteristic；
The rule and variable quantity changed according to the B phases of the power system and C phase voltages with current phase with load characteristic,
Obtain control parameter and control instruction with current zero controller 60 for point of zero voltage controller 50.
Alternatively, the double breaking points primary cut-out 10 includes：The first fixed body 11, the rotation switching body being sequentially connected
12nd, the second fixed body 13, wherein, first fixed body 11, rotate switching body 12, contain six inside the second fixed body 13
Conductor block, six conductor blocks are separated by default electrical angle between any two, and are isolated between conductor block by insulator；It is described
Six conductor blocks include：Two A phase conductors, two B phase conductors, two C phase conductors；The rotation of switching body 12 is rotated by adjusting
Angle, the respective conductors block of the first fixed body 11 and the second fixed body 13 is controlled to be in connected state or isolation.
Alternatively, it is described double when the conductor block of the first fixed body 11, rotation switching body 12, the second fixed body 13 overlaps
Breakpoint primary cut-out 10 closes；When the conductor block of the first fixed body 11, rotation switching body 12, the second fixed body 13 misplaces,
The double breaking points primary cut-out 10 disconnects；
Wherein, when the double breaking points primary cut-out 10 disconnects, arcing distance and creep age distance increase by 2 times of distances with
On, and first fixed body 11, rotation switching body 12, the insulator of the second fixed body 13 are used to cut electric arc.
Alternatively, when the property of load system is electrical resistance property, the closing course of double breaking points primary cut-out 10 is：
In the voltage A phase zero crossings of power system, double breaking points primary cut-out 10 is in closure state；After 60 degree of phases, electricity
During the voltage C phase zero crossings of Force system, double breaking points primary cut-out 10 is in closure state；After 60 degree of phases, power train
During the voltage B phase zero crossings of system, double breaking points primary cut-out 10 is in closure state；
The disconnection process of double breaking points primary cut-out 10：In the electric current A phase zero crossings of power system, double breaking points high pressure
Breaker 10 is off, and after 60 degree of phases, in the electric current C phase zero crossings of power system, double breaking points height is broken
Road device 10 is off, after 60 degree of phases, during the electric current B phase zero crossings of power system, and double breaking points primary cut-out
10 are off.
Alternatively, when load system shows as capacitive or inductive, according to adjusting load power factor angle
The electrical angle that six conductor blocks on double breaking points primary cut-out 10 are separated by between any two, to control double breaking points primary cut-out 10
Closure turn-off time.
Alternatively, the breaking drive device 70 includes：Magnetic driver 71, drive circuit and coil 72, inhale moving armature
73rd, actuating arm 74；Wherein：After drive circuit is powered with coil 72, magnetic driver 71 inhales moving armature 73 to drive actuating arm 74,
The rotation in double breaking points primary cut-out 10 is driven to switch body 12 by the actuating arm 74 so that the double breaking points high pressure open circuit
Device 10 closes；When drive circuit and coil 72 power off, the switching body 12 that rotates resets so that the double breaking points high pressure open circuit
Device 10 disconnects.
Compared with prior art, the present invention has following beneficial effect：
High pressure double breaking points intelligent switch provided by the invention, by DSP intelligent controllers to power system and load system
Voltage x current carry out high speed detection, calculated according to the voltage-current characteristic of power system and load system by double breaking points height
The zero crossing of the three-phase voltage current of voltage breaker, then double breaking points are controlled by breaker drive device by DSP intelligent controllers
Primary cut-out so that double breaking points primary cut-out was closed or broken at the Three-phase Power Systems voltage zero crossing moment
Open.Electric arc is not produced in double breaking points primary cut-out closed and disconnected, overvoltage is not also produced, so that power network does not produce
Raw impact and floating, make power system more reliable and more stable with load system, make high-voltage switch gear will not scaling loss, raising because of electric arc
Stability and life-span of the switch to related electrical equipment, raising load capacity.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation for the high pressure double breaking points intelligent switch that one embodiment of the invention provides；
Fig. 2 is the structural representation of double breaking points primary cut-out in Fig. 1；
Fig. 3 is the structural representation that switching body is rotated in Fig. 2；
Fig. 4 is the structural representation of breaking drive device in Fig. 1；
In figure：
10- double breaking points primary cut-outs；
The fixed bodies of 11- first；
The A phase conductors of the fixed bodies of 1101- first；
The insulator of the fixed bodies of 1102- first；
12- rotates switching body；
1201- rotates the conductor of switching body；
1202- rotates the insulator of switching body；
The fixed bodies of 13- second；
The A phase conductors of the fixed bodies of 1301- second；
20- voltage and current detecting devices；
30- Weight detectors；
40-A/D converters；
50- point of zero voltage controllers；
60- current zero controllers；
70- breaker drive devices；
71- magnetic drivers；
72- drive circuits and coil；
73- inhales moving armature；
74- actuating arms；
80- system protection controllers；
90- communication alert devices；
100-DSP intelligent controllers；
110- display devices.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
For in the prior art the defects of, the present invention in its structure with being improved and innovating in principle, there is provided Yi Zhonggao
Press double breaking points intelligent switch, integrated power system breaker, system protection control system, DSP intelligent controllers, power system
High-speed, high precision detects and intelligent controlling device, has height with troubleshooting way choice tackling various control mode selections
The intelligent resolution ability of degree.The Intelligent treatment computing module of multiple special functions is set, with improve DSP Intelligent treatment calculate with
Intelligent the resolution ability and speed of control, high pressure double breaking points intelligent switch performance is improved, and the height of work condition environment is adapted to
Ability.Using the high pressure double breaking points intelligent switch of the present invention, voltge surge is not produced in line voltage zero point closure, in current zero
Point, which disconnects, does not produce electric arc；And using space length, the subsequent current path of breaking arc between double-breakpoint structure increase breakpoint.
Fig. 1 is the structural representation for the high pressure double breaking points intelligent switch that one embodiment of the invention provides, as shown in figure 1, this
High pressure double breaking points intelligent switch in embodiment can include：Double breaking points primary cut-out 10, voltage and current detecting device 20, bear
Carry detection means 30, A/D converters 40, point of zero voltage controller 50, current zero controller 60, breaker drive device 70,
DSP intelligent controllers 100.Wherein,
The voltage and current detecting device 20, for detecting the voltage x current of power system, and the fortune of the power system
Row state, and be that the first low-voltage analog signal is transferred to the A/D converters 40 by the Voltage to current transducer of the power system；
Weight detector 30, for detecting the voltage x current of load system corresponding to power system, and the load system
The running status and characteristic of system, and be that the second low-voltage analog signal is transferred to the A/ by the Voltage to current transducer of the load system
D converters 40；
The A/D converters 40, for first low-voltage analog signal, the second low-voltage analog signal to be converted to accordingly
The first data signal, be transferred to DSP intelligent controllers 100 after the second data signal；
The DSP intelligent controllers 100, for according to first data signal, the second Digital Signal Analysis power train
The running status of system and load system, obtains the frequency, phase, amplitude of the voltage x current of power system, and pass through point of zero voltage
Controller 50, current zero controller 60 obtain Three-phase Power Systems voltage x current zero crossing, so that Three-phase Power Systems voltage
Electric current was crossed at the zero point moment, controlled double breaking points primary cut-out 10 to close or disconnect by breaker drive device 70.
As shown in figure 1, the high pressure double breaking points intelligent switch in the present embodiment, can also include system protection controller 80,
Alarm Communication device 90, the system protection controller 80 are used for when power system or load system are broken down, driving
Double breaking points primary cut-out 10 disconnects, and sends alarm by Alarm Communication device 90.
Specifically, the DSP intelligent controllers 100 in this implementation can include：DSP signal processors, DSP control instructions fortune
Device, dsp system protection instruction calculator are calculated, wherein：
The DSP signal processors, for the running status of power system and load system to be analyzed and shown, with
And according to the first data signal and the second data signal received, calculate the voltage x current of power system and load system
Frequency, amplitude and phase；
The DSP control instructions arithmetic unit, for being crossed in Three-phase Power Systems voltage x current at the zero point moment, generate to electricity
Press zero circuit 50, current zero controller 60, the control instruction of breaker drive device 70；So that breaker drive device
70 are crossed at the zero point moment in Three-phase Power Systems voltage x current, and double breaking points primary cut-out is controlled by breaker drive device 70
10 closures disconnect.
The dsp system protects instruction calculator, for exceeding in advance in power system, or the voltage x current of load system
If higher limit when, or when power system exceedes preset upper limit temperature, generate the control instruction to system protection controller 80,
So that system protection controller 80 drives double breaking points primary cut-out 10 to disconnect, and alarm is sent by Alarm Communication device 90.
Fig. 2 is the structural representation of double breaking points primary cut-out in Fig. 1, as shown in Fig. 2 double breaking points primary cut-out 10 wraps
Include：The first fixed body 11, rotation switching body 12, the second fixed body 13 being sequentially connected, wherein, first fixed body 11, turn
Containing six conductor blocks inside dynamic switching body 12, the second fixed body 13, six conductor blocks differ 60 degree of angles between any two,
And isolated between conductor block by insulator；Six conductor blocks include：Two A phase conductors, two B phase conductors, two C phases
Conductor.
Double breaking points primary cut-out in the present embodiment, the rotational angle of switching body 12, control can be rotated by adjusting
The respective conductors block of first fixed body 11 and the second fixed body 13 is in connected state or isolation.
Specifically, Fig. 3 is the structural representation that switching body is rotated in Fig. 2, as shown in figure 3, double breaking points primary cut-out 10
Closing course is：In the voltage A phase zero crossings of power system, double breaking points primary cut-out 10 is in closure state；By 60
After spending phase, during the voltage C phase zero crossings of power system, double breaking points primary cut-out 10 is in closure state；By 60 degree of phases
Behind position, during the voltage B phase zero crossings of power system, double breaking points primary cut-out 10 is in closure state；It thereby may be ensured that electricity
Surge voltage and dash current are not produced during the voltage A phase, B phase, C phase closure of Force system so that power network is special with load transitions
It is mild-natured steady, no impact and fluctuation.The disconnection process of double breaking points primary cut-out 10：It is double in the electric current A phase zero crossings of power system
Breakpoint primary cut-out 10 is off, after 60 degree of phases, in the electric current C phase zero crossings of power system, and double break
Point primary cut-out 10 is off, after 60 degree phases, during the electric current B phase zero crossings of power system, and double breaking points height
Voltage breaker 10 is off, and be thereby may be ensured that and is not produced electricity when the voltage A phase, B phase, C phase of power system disconnects
Arc.
It should be noted that the operating condition of the high pressure double breaking points intelligent switch in the present embodiment be load characteristic for electricity
Resistive load.When load characteristic is inductive load or capacitor type loads, DSP intelligent controllers 100 are needed according to bearing power
Factor angle shifts to an earlier date or adjusts the latter angle.Specifically, the closure of double breaking points primary cut-out 10 can be adjusted according to actual conditions
With disconnection angle and time.
In the present embodiment, DSP intelligent controllers 100 use high-speed, high precision intelligent control mode, can adapt to power train
The complicated variable condition of system and load system, when tackling various control modes, selection and troubleshooting mode, have height
Intelligence resolution ability.Using the high pressure double breaking points intelligent switch in the present embodiment, when closure or disconnection switch, electricity will not be produced
Pressure impact, when electric current disconnects, does not produce electric arc；So as to effectively eliminate the interference and fluctuation of power system, increase high-voltage switch gear
With associate power apparatus of load ability and life-span.
Fig. 4 is the structural representation of breaking drive device in Fig. 1, as shown in figure 4, the breaking drive device in the present embodiment
It can include：Magnetic driver 71, drive circuit and coil 72, inhale moving armature 73, actuating arm 74；Wherein：Drive circuit and line
After circle 72 is powered, magnetic driver 71 inhales moving armature 73 to drive actuating arm 74 to rotate 30 ° of radians, is driven by the actuating arm 74
Rotation switching body 12 in dynamic double breaking points primary cut-out 10 rotates 30 degree so that the double breaking points primary cut-out 10 closes
(the first fixed body 11, rotation switching body 12, the conductor block of the three of the second fixed body 13 overlap and connect and compose path)；When driving electricity
When road powers off with coil 72, the switching body 12 that rotates resets so that the double breaking points primary cut-out 10 disconnects (the first fixation
The conductor block dislocation of body 11, rotation switching body 12, the three of the second fixed body 13 connects and composes open circuit).
In the present embodiment, the high speed of high pressure double breaking points intelligent switch operation can be ensured using magnetic driver.
The present embodiment, high speed detection is carried out to the voltage x current of power system and load system by DSP intelligent controllers,
Three-phase voltage current by double breaking points primary cut-out is calculated according to the voltage-current characteristic of power system and load system
Zero crossing, then breaker drive device is passed through by DSP intelligent controllers and controls double breaking points primary cut-out so that double breaking points are high
Voltage breaker was closed or disconnected at the Three-phase Power Systems voltage zero crossing moment.Closed in double breaking points primary cut-out
Close and do not produce electric arc when disconnecting, also do not produce overvoltage, so that power network does not produce impact and floated, make power system
It is more reliable and more stable with load system, make high-voltage switch gear will not because of electric arc scaling loss, improve switch and related electrical equipment
Stability and life-span, improve load capacity.
Further, the present embodiment using voltage and current detecting device and Weight detector detect in real time power system,
The running status and voltage x current of load system, and by DSP intelligent controllers to power system, the running status of load system
Analyzed with voltage x current, so as to form the intelligent control mode with Adaptive-learning control function, lifting reply
Various complicated power systems and load change and environmental change and adaptability, tackling various control mode selections and failure
During the selection of processing mode, there is the intelligent resolution ability of height.
Further, the high pressure double breaking points intelligent switch in the present embodiment, has double breaking points, arcing distance and creep age distance
Increase more than 2 times of distances；When rotating switching body 12, the insulator for rotating switching body plays a part of cutting electric arc.
Further, the high pressure double breaking points intelligent switch in the present embodiment can be examined in real time to power system with load system
Survey and monitoring, when power network or load appearance exception and failure, the control system of DSP intelligent controllers 100 protection controller 80, by
Control system protection controller 80 controls breaker drive device 70 to disconnect double breaking points primary cut-out 10 in time, cut off it is grid-connected and
Load, reach the protection to power network and load；And given notice alarm signal to relevant department rapidly, it is easy to power system
Carry out on-call maintenance.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
- A kind of 1. high pressure double breaking points intelligent switch, it is characterised in that including：Double breaking points primary cut-out (10), voltage x current inspection Survey device (20), Weight detector (30), A/D converters (40), point of zero voltage controller (50), current zero controller (60), breaker drive device (70), DSP intelligent controllers (100)；Wherein：The voltage and current detecting device (20), for detecting the voltage x current of power system, and the operation of the power system State, and be that the first low-voltage analog signal is transferred to the A/D converters (40) by the Voltage to current transducer of the power system；Weight detector (30), for detecting the voltage x current of load system corresponding to power system, and the load system Running status, and by the Voltage to current transducer of the load system be the second low-voltage analog signal be transferred to the A/D converters (40)；The A/D converters (40), for first low-voltage analog signal, the second low-voltage analog signal to be converted to accordingly DSP intelligent controllers (100) are transferred to after first data signal, the second data signal；The DSP intelligent controllers (100), for according to first data signal, the second Digital Signal Analysis power system With the running status of load system, the frequency, phase, amplitude of the voltage x current of power system are obtained, and pass through point of zero voltage control Device (50) processed, current zero controller (60) obtain Three-phase Power Systems voltage x current zero crossing, so that Three-phase Power Systems are electric Piezoelectricity was flowed through at the zero point moment, and double breaking points primary cut-out (10) closure or disconnected is controlled by breaker drive device (70) Open.
- 2. high pressure double breaking points intelligent switch according to claim 1, it is characterised in that also include：System protection controller (80), Alarm Communication device (90), the system protection controller (80) are used for event occur in power system or load system During barrier, driving double breaking points primary cut-out (10) disconnects, and sends alarm by Alarm Communication device (90).
- 3. high pressure double breaking points intelligent switch according to claim 2, it is characterised in that the DSP intelligent controllers (100) Including：DSP signal processors, DSP control instructions arithmetic unit, dsp system protection instruction calculator, wherein：The DSP signal processors, for the running status of power system and load system to be analyzed and shown, Yi Jigen According to the first data signal and the second data signal received, the frequency of the voltage x current of power system and load system is calculated Rate, amplitude and phase；The DSP control instructions arithmetic unit, for being crossed in Three-phase Power Systems voltage x current at the zero point moment, generate to voltage zero Base site controller (50), current zero controller (60), the control instruction of breaker drive device (70)；So that breaker driving dress Put (70) to cross at the zero point moment in Three-phase Power Systems voltage x current, double breaking points high pressure is controlled by breaker drive device (70) Breaker (10) is closed or disconnected；The dsp system protects instruction calculator, in power system, or load system voltage x current exceed it is default During higher limit, or when power system exceedes preset upper limit temperature, the control instruction to system protection controller (80) is generated, with Make system protection controller (80) drive double breaking points primary cut-out (10) to disconnect, and police is sent by Alarm Communication device (90) Report.
- 4. high pressure double breaking points intelligent switch according to claim 1, it is characterised in that the voltage and current detecting device (20) include：Voltage detecting converter and current/voltage hall converter；The Weight detector (30) includes：Load electricity Press detection means and current/voltage hall converter.
- 5. high pressure double breaking points intelligent switch according to claim 1, it is characterised in that the DSP intelligent controllers (100) It is specifically used for：After obtaining the A phases breaker closing of double breaking points primary cut-out (10) or disconnecting, B phases and the C phase voltages of power system The rule and variable quantity changed with current phase with load characteristic；The rule and variable quantity changed according to the B phases of the power system and C phase voltages with current phase with load characteristic, is obtained For the control parameter and control instruction of point of zero voltage controller (50) and current zero controller (60).
- 6. the high pressure double breaking points intelligent switch according to any one of claim 1-5, it is characterised in that the double breaking points are high Voltage breaker (10) includes：The first fixed body (11), rotation switching body (12), the second fixed body (13) being sequentially connected, wherein, First fixed body (11), rotation switch body (12), six conductor blocks are contained in the second fixed body (13) inside, described six Conductor block is separated by default electrical angle between any two, and is isolated between conductor block by insulator；Six conductor blocks include： Two A phase conductors, two B phase conductors, two C phase conductors；The rotational angle of switching body (12), control first are rotated by adjusting The respective conductors block of fixed body (11) and the second fixed body (13) is in connected state or isolation.
- 7. high pressure double breaking points intelligent switch according to claim 6, it is characterised in that in the first fixed body (11), rotate When switching the conductor block coincidence of body (12), the second fixed body (13), double breaking points primary cut-out (10) closure；It is solid first When determining body (11), rotating the conductor block dislocation of switching body (12), the second fixed body (13), the double breaking points primary cut-out (10) Disconnect；Wherein, when the double breaking points primary cut-out (10) disconnects, arcing distance increases more than 2 times of distances with creep age distance, And first fixed body (11), rotation switching body (12), the insulator of the second fixed body (13) are for cutting electric arc.
- 8. high pressure double breaking points intelligent switch according to claim 6, it is characterised in that when the property of load system is resistance During property, double breaking points primary cut-out (10) closing course is：In the voltage A phase zero crossings of power system, double breaking points Primary cut-out (10) is in closure state；After 60 degree of phases, during the voltage C phase zero crossings of power system, double breaking points are high Voltage breaker (10) is in closure state；After 60 degree of phases, during the voltage B phase zero crossings of power system, double breaking points high pressure Breaker (10) is in closure state；Double breaking points primary cut-out (10) disconnection process：In the electric current A phase zero crossings of power system, double breaking points height is broken Road device (10) is off, and after 60 degree of phases, in the electric current C phase zero crossings of power system, double breaking points height is broken Road device (10) is off, after 60 degree of phases, during the electric current B phase zero crossings of power system, and the open circuit of double breaking points high pressure Device (10) is off.
- 9. high pressure double breaking points intelligent switch according to claim 6, it is characterised in that when load system shows as capacitive character Or during inductive, the electrical angle that six conductor blocks on the double breaking points primary cut-out (10) are separated by between any two is adjusted, To control the closure turn-off time of double breaking points primary cut-out (10).
- 10. high pressure double breaking points intelligent switch according to claim 6, it is characterised in that the breaking drive device (70) Including：Magnetic driver (71), drive circuit and coil (72), inhale moving armature (73), actuating arm (74)；Wherein：Drive circuit After being powered with coil (72), magnetic driver (71) inhales moving armature (73) to drive actuating arm (74), passes through the actuating arm (74) the rotation switching body (12) in double breaking points primary cut-out (10) is driven so that the double breaking points primary cut-out (10) is closed Close；When drive circuit and coil (72) power off, the switching body (12) that rotates resets so that the double breaking points primary cut-out (10) disconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100446.1A CN107872048B (en) | 2017-11-09 | 2017-11-09 | High pressure double breaking points intelligent switch |
Applications Claiming Priority (1)
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| CN108539855A (en) * | 2018-04-13 | 2018-09-14 | 上海广吉电气有限公司 | High-speed dsp controls power grid intellectual monitoring regulating compensation and Protection control system |
| CN109728569A (en) * | 2018-12-20 | 2019-05-07 | 上海广吉电气有限公司 | Rotator type intelligent high-pressure switch |
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| CN104835698A (en) * | 2015-04-24 | 2015-08-12 | 浙江奔一电气有限公司 | Small-sized multi-break point circuit breaker |
| CN205753655U (en) * | 2016-06-14 | 2016-11-30 | 江西航智电气有限公司 | A kind of high-voltage intelligent switch |
| CN107240919A (en) * | 2017-06-21 | 2017-10-10 | 上海广吉电气有限公司 | Intelligent active filter |
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| US20040239297A1 (en) * | 2001-10-15 | 2004-12-02 | Sinha Martin C. | Signal generation apparatus and method for seafloor electromagnetic exploration |
| CN1725586A (en) * | 2004-07-22 | 2006-01-25 | 三菱电机株式会社 | Phase control switching device |
| CN104835698A (en) * | 2015-04-24 | 2015-08-12 | 浙江奔一电气有限公司 | Small-sized multi-break point circuit breaker |
| CN205753655U (en) * | 2016-06-14 | 2016-11-30 | 江西航智电气有限公司 | A kind of high-voltage intelligent switch |
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| CN108539855A (en) * | 2018-04-13 | 2018-09-14 | 上海广吉电气有限公司 | High-speed dsp controls power grid intellectual monitoring regulating compensation and Protection control system |
| CN109728569A (en) * | 2018-12-20 | 2019-05-07 | 上海广吉电气有限公司 | Rotator type intelligent high-pressure switch |
| CN109728569B (en) * | 2018-12-20 | 2019-12-17 | 上海广吉电气有限公司 | rotor type intelligent high-voltage switch |
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| CN107872048B (en) | 2019-05-03 |
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