CN108695860A - A kind of reactive-load compensation equipment - Google Patents
A kind of reactive-load compensation equipment Download PDFInfo
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- CN108695860A CN108695860A CN201810602104.8A CN201810602104A CN108695860A CN 108695860 A CN108695860 A CN 108695860A CN 201810602104 A CN201810602104 A CN 201810602104A CN 108695860 A CN108695860 A CN 108695860A
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- fuse
- power
- reactive
- switching circuit
- voltage switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of reactive-load compensation equipments, if including power switch, current detection circuit, secondary circuit fuse, main line auto compensation unit, all the way manual compensation unit and arrester, the front end of the power switch and power supply system power electric connection, if the rear end of power switch respectively with secondary circuit fuse, main line auto compensation unit, all the way manual compensation unit and arrester electrical connection, and if main line auto compensation unit, manual compensation unit and arrester are connected to the rear end of power switch all the way.The present invention is by increasing a manual compensation unit, its manual compensation unit is not controlled by reactive power self-compensating controlling device, it is not required to installation A.C. contactor and electrothermal relay, input or the excision that three-phase power capacitor is directly manually controlled using miniature circuit breaker, are made the zero load of power supply system power transformer and can obtain the optimal compensation at light load.
Description
Technical field
The invention belongs to power capacitor reactive compensation technical fields, are specifically related to a kind of reactive-load compensation equipment.
Background technology
Currently, carrying out the reactive-load compensation equipment of reactive-load compensation since grid power can be improved to power grid using power capacitor
Factor reduces conveying piezoelectric voltage loss, improves the ability of power grid conveying electricity, thus is widely used.
But existing reactive-load compensation equipment is in practice, when the induction equipment in a power supply system is out of service,
The current signal that sampling mutual inductor obtains reduces, and reactive power self-compensating controlling device exports the automatic compensation of excision after calculating
The switching signal of unit, all auto compensation units are gradually out of service.The reactive power automatic compensation control of most of brands
Device processed is all provided with block electric current when design, such as certain brand reactive power self-compensating controlling device, when sampling mutual inductor secondary side
Electric current is less than 150 milliamperes, and reactive power self-compensating controlling device is at blocked styate, and all auto compensation units were at 3 minutes
Inside cut off by force.That is, according to the no-load voltage ratio of sampling mutual inductor, primary side electricity is acquired with 150 milliamperes of calculating of secondary side current
Stream, reactive power when less than primary side current cannot all compensate.
General unit, that is, class's production in one day, do not work in three shifts;Even the unit that has sometimes also one day one
Class all produces abnormal, and the time of power transformer no-load running is far longer than the load operation time.Power transformer is by iron
What core and inductive coils were constituted, even if to consume a certain amount of active power and reactive power if in no-load running, it is also desirable to
A certain amount of reactive compensation capacity, the capacity only needed is much smaller, much smaller than appointing in the reactive-load compensation equipment installed
It anticipates the capacity of one group of three-phase power capacitance, thus the mode that one group of capacitance of switching cycle cannot be arranged on intelligent controller carries out
Compensation.
The Chinese patent of Publication No. CN2840467Y discloses a kind of intelligent reactive power compensation equipment, the device major loop
In:Knife-like switch is connected to shunt circuitbreaker by copper bar and conducting wire, and breaker connects A.C. contactor, ac contactor by conducting wire
Device connects capacitor by conducting wire and is connected under knife-like switch;In control loop:On knife-like switch voltage by secondary fuse terminal extremely
Voltmeter;Current transformer is to current terminal to reactive-load compensator;Under knife-like switch under A phase voltages to each ac contactor coil,
B, C phase voltages are to power-factor meter and voltmeter, in reactive-load compensator outlet to each ac contactor coil.It can significantly improve
Power factor reduces reactive current, reduces power loss, improves power quality, gives full play to transformer potentiality and increases electric power
System margins.But the reactive-load compensation equipment cannot solve the problems, such as effective compensation when power transformer underloading and no-load running.Electricity
Even if to consume certain active power and reactive power if power transformer no-load running, and reactive power is much larger than wattful power
Rate.Except eight hours, festivals or holidays two-day weekend such one calculate, and the time of power transformer light load operation is far longer than load fortune
Row time, therefore effective compensation problem when consideration power transformer light load, it is necessary to.
Invention content
To solve the above problems, the present invention provides a kind of reactive-load compensation equipments.
The present invention is achieved by following technical solution.
A kind of reactive-load compensation equipment, if including power switch, current detection circuit, secondary circuit fuse, main line it is automatic
Compensating unit, all the way manual compensation unit and arrester, front end and the power supply system power electric connection of the power switch, power supply
If the rear end of switch is electric with secondary circuit fuse, main line auto compensation unit, all the way manual compensation unit and arrester respectively
Connection, and if main line auto compensation unit, manual compensation unit and arrester are connected to the rear end of power switch all the way.
The current detection circuit includes three current transformers and three ammeters, wherein three current transformer installations
In the lower end of power switch, and secondary side one end of three current transformers is electrically connected with three ammeter one end respectively, three
After the ammeter other end is electrically connected with the secondary side other end of three current transformers and it is grounded.
The secondary circuit fuse includes fuse 4FU, fuse 5FU and fuse 6FU, wherein fuse 4FU,
Fuse 5FU, fuse 6FU front end be electrically connected respectively with battery main switch, the rear end of fuse 4FU and manual automatic conversion
The body contact b1 electrical connections of switch;The rear end of fuse 5FU is electrically connected with the auxiliary contact of electrothermal relay FR;Fuse 6FU
Rear end be electrically connected with the body contact b3 of manual automatic transfer switch.
The auto compensation unit includes the miniature circuit breaker QF being sequentially connected electrically, A.C. contactor KM, electrothermal relay FR
With three-phase power capacitor C, the coil upper end of wherein A.C. contactor KM has been electrically connected manual automatic transfer switch and nothing
The auxiliary contact upper end of work(Reactive Power Automatic Compensation Controller, the coil lower end of A.C. contactor KM and corresponding electrothermal relay FR are electrically connected
It connects;Power supply terminal Ua, the power supply terminal Uc of reactive power self-compensating controlling device respectively with the ontology of manual automatic transfer switch
Contact b2, body contact b4 electrical connections, the current terminal Ib and power-factor meter current terminal of reactive power self-compensating controlling device
Son electrical connection, secondary side one end electrical connection of the current terminal I* and sampled current transformer of reactive power self-compensating controlling device
And it is grounded.
The sampled current transformer secondary side other end and the electrical connection of the power-factor meter current terminal other end, idle work(
The leading-out terminal of the rate automatic compensating controller correspondence with corresponding ac contactor coil and manual automatic transfer switch respectively
Contact is electrically connected.
It is molten after the auxiliary contact upper end of the A.C. contactor KM all connects into a little and in secondary circuit fuse
The auxiliary contact lower end of the disconnected rear ends device 4FU electrical connection, electrothermal relay FR connects into melting in a little rear and secondary circuit fuse
The rear end electrical connection of disconnected device 5FU.
The manual compensation unit includes miniature circuit breaker * QF and three-phase power capacitor * C, wherein miniature circuit breaker * QF
Front end connect together with auto compensation unit and arrester, the rear end of miniature circuit breaker * QF and three-phase power capacitor * C
Electrical connection.
The reactive-load compensation equipment further includes voltage switching circuit, and voltage switching circuit is by voltmeter, voltage switching circuit
Change-over switch, voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU groups
At before wherein voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU
End is electrically connected with power switch upper end busbar L1, busbar L2, busbar L3 respectively, and voltage switching circuit change-over switch is separately mounted to
On voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU, voltmeter one
End is electrically connected with the body contact b2 of voltage switching circuit change-over switch, body contact b6, and the other end turns with voltage switching circuit
Change body contact b8, the body contact b12 electrical connections of switch;The body contact b1 and voltage of voltage switching circuit change-over switch are cut
Gain the rear end electrical connection of road fuse 1FU, body contact b5, body contact b7 and the voltage of voltage switching circuit change-over switch
The rear end of switching circuit fuse 2FU is electrically connected, the body contact b11 and voltage switching circuit of voltage switching circuit change-over switch
The rear ends fuse 3FU are electrically connected.
The auxiliary contact lower end of the A.C. contactor KM is also associated with switching indicator light.
The arrester is three, wherein three arrester one end and auto compensation unit and manual compensation unit are together simultaneously
It is connected to power switch lower end, ground connection after three arrester other ends connect into a bit.
The auto compensation unit quantity is 1~12.
The beneficial effects of the invention are as follows:
Compared with prior art, the present invention is by increasing a manual compensation unit, and manual compensation unit is not by nothing
The control of work(Reactive Power Automatic Compensation Controller is not required to installation A.C. contactor and electrothermal relay, directly uses miniature circuit breaker control
The input of three-phase power capacitor processed or excision.The capacity of power transformer is different, three-phase power capacitance in manual compensation unit
The amount of capacity of device is different, generally according to the unloaded active loss of matched power transformer and reactive loss configuration three-phase power electricity
The capacity of container.Manual compensation unit is run by the way of artificial input or excision, during normal production between due to load it is big, take
Sample mutual inductor can obtain larger current signal, all auto compensation units of reactive power self-compensating controlling device energy normal control
Input or excision, at this moment can be out of service by manual compensation unit, reduce power capacitor charging operation time, extend
The service life of power capacitor.Time other than during normal production, as per except eight hours working days and festivals or holidays two-day weekend,
Manual compensation unit can be put into operation.Two tunnel manual compensation units, two-way manual compensation unit rotation can also be increased
Work, further increases the service life of three-phase power capacitor.Using technical solutions according to the invention, the power supply can be allowed to be
System obtain most effective compensation, achieve the purpose that it is energy-saving, increase economic efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention;
Fig. 2 is voltage switching circuit and contact schematic diagram in the present invention;
Fig. 3 is auto compensation unit ac contactor contact and indicator light connection diagram in the present invention;
Fig. 4 is manual automatic transfer switch contact table in the present invention.
In figure:1- power switches, 2- current detection circuits, 3- secondary circuit fuses, 4- auto compensation units, 5- are manual
Compensating unit, 6- arresters, 7- sampled current transformers, 8- power-factor meters, 9- reactive power self-compensating controlling devices, 10-
Manual automatic transfer switch, 11- voltmeters, 12- voltage switching circuit change-over switches, 21- current transformers, 22- ammeters.
Specific implementation mode
Technical scheme of the present invention is further described below in conjunction with the accompanying drawings, but claimed range is not limited to institute
It states.
As shown in Figure 1, a kind of reactive-load compensation equipment of the present invention, including power switch 1, current detection circuit 2, two
If minor loop fuse 3, main line auto compensation unit 4, all the way manual compensation unit 5 and arrester 6, the power switch 1
Front end and power supply system power electric connection, if the rear end of power switch 1 is compensated with secondary circuit fuse 3, main line automatically respectively
Unit 4, all the way manual compensation unit 5 and arrester 6 are electrically connected, and if main line auto compensation unit 4, all the way manual compensation unit
5 and arrester 6 be connected to the rear end of power switch 1.Power switch 1 is the battery main switch of the present invention, no matter model and type,
It can be open type knife switch or switch with knifeshaped fuse, can also be moulded case circuit breaker.The manual compensation unit 5 can be with
Using two tunnels, two-way manual compensation unit rotation work further increases the service life of three-phase power capacitor, can allow confession
Electric system obtains most effective compensation, achieve the purpose that it is energy-saving, increase economic efficiency.
The current detection circuit 2 includes three current transformers 21 and three ammeters 22, wherein three Current Mutual Inductances
Device 21 be mounted on power switch 1 lower end, and secondary side one end of three current transformers 21 respectively with three ammeters 22 1
End electrical connection, after three 22 other ends of ammeter are electrically connected with the secondary side other end of three current transformers 21 and is grounded.I.e.
Three 22 other ends of ammeter are electrically connected and are grounded with the secondary side other end of three current transformers 21 again after connecting into a bit.
Current detecting amount circuit is used to measure and show the operating current of reactive-load compensation equipment.
The secondary circuit fuse 3 includes fuse 4FU, fuse 5FU and fuse 6FU, wherein fuse 4FU,
Fuse 5FU, fuse 6FU front end be electrically connected respectively with battery main switch 1, the rear end of fuse 4FU with manually from turn
Change the body contact b1 electrical connections of switch 10;The rear end of fuse 5FU is electrically connected with the auxiliary contact of electrothermal relay FR;Fuse
The rear end of 6FU is electrically connected with the body contact b3 of manual automatic transfer switch 10.
The auto compensation unit includes the miniature circuit breaker QF being sequentially connected electrically, A.C. contactor KM, electrothermal relay FR
It is electrically connected 10 He of manual automatic transfer switch with the coil upper end of three-phase power capacitor C, wherein A.C. contactor KM
Reactive power self-compensating controlling device 9, the auxiliary contact upper end of the coil lower end of A.C. contactor KM and corresponding electrothermal relay FR
Electrical connection;Power supply terminal Ua, the power supply terminal Uc of reactive power self-compensating controlling device 9 respectively with manual automatic transfer switch 10
Body contact b2, body contact b4 electrical connection, the current terminal Ib and power-factor meter of reactive power self-compensating controlling device 9
8 current terminals are electrically connected, the secondary side of the current terminal I* and sampled current transformer 7 of reactive power self-compensating controlling device 9
One end is electrically connected and is grounded.8 current terminal other end electricity of the 7 secondary side other end of the sampled current transformer and power-factor meter
Connection.The leading-out terminal of reactive power self-compensating controlling device 9 is respectively with corresponding ac contactor coil and manually from turn
Change the correspondence contact electrical connection of switch 10.The effect of manual automatic transfer switch 10 is to reactive power self-compensating controlling device 9
AC power is provided, but when 9 cisco unity malfunction of reactive power self-compensating controlling device or when other necessary, it can be with
Put into or cut off each road auto compensation unit manually.
It is molten after the auxiliary contact upper end of the A.C. contactor KM all connects into a little and in secondary circuit fuse 3
The auxiliary contact lower end of the disconnected rear ends device 4FU electrical connection, electrothermal relay FR connects into melting in a little rear and secondary circuit fuse 3
The rear end electrical connection of disconnected device 5FU.
The manual compensation unit 5 includes miniature circuit breaker * QF and three-phase power capacitor * C, wherein miniature circuit breaker *
The front end of QF connects together with auto compensation unit 4 and arrester 6, rear end and the three-phase power capacitance of miniature circuit breaker * QF
Device * C electrical connections.Manual compensation unit 5 is not by the control of reactive power self-compensating controlling device 9 and manual automatic transfer switch 10
Independent operating.
As shown in Fig. 2, further including voltage switching circuit, voltage switching circuit is converted by voltmeter 11, voltage switching circuit
Switch 12, voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU groups
At before wherein voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU
End is electrically connected with 1 upper end busbar L1 of power switch, busbar L2, busbar L3 respectively, and voltage switching circuit change-over switch 12 is pacified respectively
On voltage switching circuit fuse 1FU, voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU, voltage
11 one end of table is electrically connected with the body contact b2 of voltage switching circuit change-over switch 12, body contact b6, and the other end is cut with voltage
Gain body contact b8, the body contact b12 electrical connections of road change-over switch 12;The ontology of voltage switching circuit change-over switch 12 touches
The rear end of point b1 and voltage switching circuit fuse 1FU are electrically connected, the body contact b5 of voltage switching circuit change-over switch 12, sheet
The rear end of body contact b7 and voltage switching circuit fuse 2FU are electrically connected, the body contact of voltage switching circuit change-over switch 12
B11 and the electrical connection of the rear ends voltage switching circuit fuse 3FU.
The potential winding of above-mentioned power-factor meter 8 is also connected on the voltage switching circuit, and current coil is serially connected in electric current and takes
In sample transformer secondary circuit.The voltage commutation circuit is mounted on 1 top of power switch, convenient for also can before power switch combined floodgate
Show that power factor and switching show three-phase line voltage.
As shown in figure 3, the auxiliary contact lower end of the A.C. contactor KM is also associated with switching indicator light.
The arrester 6 is three, wherein three 6 one end of arrester and auto compensation unit 4 and manual compensation unit 5 one
It rises and is connected to 1 lower end of power switch, ground connection after three 6 other ends of arrester connect into a bit.Arrester 6 carried out electricity to system
Pressure protection.
In above-mentioned technical proposal, the current signal of the power-factor meter 8 is derived from 7 secondary side of sampled current transformer, electricity
Pressure signal is derived from voltage commutation circuit fuse 1FU and the rear ends voltage commutation circuit fuse 3FU.
The effect of reactive power self-compensating controlling device 9 is:According to sampling voltage and the practical work(of sampling current computing system
Rate factor, when actual power factor is less than setting value, output switching signal, auto compensation unit puts into operation, when practical work(
When rate factor is greater than the set value, output switching signal, auto compensation unit is out of service.Reactive power self-compensating controlling device 9
It is cycle output when output switching signal, auto compensation unit is also cycle input or excision, reactive power automatic compensation
Controller 9 can also carry out the settings such as target power factor, switching delay, overvoltage, feeder number and current transformer ratio, Ge Xiangcan
After number is set, according to the parameter automatic running set.
Above-mentioned power-factor meter 8 can visual display system actual power factor.
Sampled current transformer 7 is mounted in a certain phase always shielded of system, this be usually mutually in three-phase electric current it is maximum
One phase.Another two-phase voltage signal input except sampling current and current sampling phase that 7 secondary side of sampled current transformer obtains
Reactive power self-compensating controlling device 9 is compared calculating, obtains output fling-cut switch signal.
1~12 road auto compensation unit can be made as needed in practical applications, correspondingly, should also select corresponding road
Several manual automatic transfer switch 10 and reactive power self-compensating controlling device 9.The technical program is preferably provided with eight tunnels and mends automatically
Unit is repaid, the technical program is further described for eight road auto compensation units of Xian Yi as follows:
As shown in Figure 1, the innovation of the invention consists in that add manual compensation unit 5 all the way, compensated automatically eight tunnels are arranged
In the embodiment of unit, eight road auto compensation units 4, all the way manual compensation unit 5 and arrester 6 are connected to power switch 1
Rear end.
Eight road auto compensation unit is respectively provided with eight miniature circuit breaker 1QF~8QF, eight A.C. contactor 1KM
~8KM, eight electrothermal relay 1FR~8FR and eight three-phase power capacitor 1C~8C.Wherein miniature circuit breaker 1QF, exchange connect
Tentaculum 1KM, electrothermal relay 1FR, three-phase power capacitor 1C, which are sequentially connected, constitutes first via auto compensation unit;Miniature circuit breaker
2QF, A.C. contactor 2KM, electrothermal relay 2FR, three-phase power capacitor 2C, which are sequentially connected, constitutes the second road auto compensation unit;
Miniature circuit breaker 3QF, A.C. contactor 3KM, electrothermal relay 3FR, three-phase power capacitor 3C, which are sequentially connected, constitutes third road certainly
Dynamic compensating unit;Miniature circuit breaker 4QF, A.C. contactor 4KM, electrothermal relay 4FR, three-phase power capacitor 4C are sequentially connected structure
At the 4th road auto compensation unit;Miniature circuit breaker 5QF, A.C. contactor 5KM, electrothermal relay 5FR, three-phase power capacitor 5C
It is sequentially connected and constitutes the 5th road auto compensation unit;Miniature circuit breaker 6QF, A.C. contactor 6KM, electrothermal relay 6FR, three-phase electricity
Power capacitor 6C, which is sequentially connected, constitutes the 6th road auto compensation unit;Miniature circuit breaker 7QF, A.C. contactor 7KM, electrothermal relay
7FR, three-phase power capacitor 7C, which are sequentially connected, constitutes the 7th road auto compensation unit;Miniature circuit breaker 8QF, A.C. contactor
8KM, electrothermal relay 8FR, three-phase power capacitor 8C, which are sequentially connected, constitutes the 8th road auto compensation unit.
In eight road auto compensation units, secondary circuit fuse 3 still includes fuse 4FU, fuse 5FU and fusing
Device 6FU, the fuse 4FU, fuse 5FU, fuse 6FU front end be electrically connected respectively with battery main switch 1;Fuse
The rear end of 4FU is electrically connected with the body contact b1 of manual automatic transfer switch 10;The rear end of fuse 5FU respectively with electrothermal relay
Auxiliary contact 1FR, electrothermal relay auxiliary contact 2FR, electrothermal relay auxiliary contact 3FR, electrothermal relay auxiliary contact 4FR, heat after
Electric appliance auxiliary contact 5FR, electrothermal relay auxiliary contact 6FR, electrothermal relay auxiliary contact 7FR, electrothermal relay auxiliary contact 8FR electricity
Connection;The rear end of fuse 6FU respectively with the body contact b3 of manual automatic transfer switch 10, body contact b6, body contact
B8, body contact b10, body contact b12, body contact b14, body contact b16, body contact b18, body contact b20 electricity
Connection.Specific contact table is as shown in Figure 4.
Fuse 4FU, fuse 5FU, fuse 6FU are used for reactive power self-compensating controlling device 9, A.C. contactor
1KM~8KM coils, switching indicator light 1XD~8XD provide AC power, and provide short-circuit protection.
The body contact b2 and body contact b4 of the manual automatic transfer switch 10 respectively with reactive power automatic compensation
The voltage sampling terminal Ua of controller 9 and the Uc electrical connections of voltage sampling terminal;The current terminal of reactive power self-compensating controlling device 9
Sub- Ib and the electrical connection of 8 current terminal of power-factor meter, the current terminal I* and sampling current of reactive power self-compensating controlling device 9
7 secondary side one end of mutual inductor is electrically connected and is grounded.
As shown in figure 3, the A.C. contactor 1KM, A.C. contactor 2KM, A.C. contactor 3KM, A.C. contactor
The auxiliary contact lower end difference of 4KM, A.C. contactor 5KM, A.C. contactor 6KM, A.C. contactor 7KM, A.C. contactor 8KM
It is electrically connected with switching indicator light 1XD, switching indicator light 2XD, switching indicator light 3XD, switching indicator light 4XD, switching indicator light
5XD, switching indicator light 6XD, switching indicator light 7XD, switching indicator light 8XD.
As shown in Figure 1 and Figure 2,8 current signal of the power-factor meter is derived from 7 secondary side of sampled current transformer, voltage letter
Number it is derived from the rear ends voltage commutation circuit fuse 1FU, 3FU.The 7 secondary side other end of the sampled current transformer and power factor
The 8 current terminal other end of table is electrically connected.The leading-out terminal of reactive power self-compensating controlling device 9 respectively with corresponding ac contactor
The correspondence contact of device coil and manual automatic transfer switch 10 is electrically connected.
Claims (10)
1. a kind of reactive-load compensation equipment, it is characterised in that:It is molten including power switch (1), current detection circuit (2), secondary circuit
Disconnected device (3) if, main line auto compensation unit (4), all the way manual compensation unit (5) and arrester (6), the power switch (1)
Front end and power supply system power electric connection, the rear end of power switch (1) respectively with secondary circuit fuse (3) if, main line from
Dynamic compensating unit (4), all the way manual compensation unit (5) and arrester (6) electrical connection, and if main line auto compensation unit (4), one
Road manual compensation unit (5) and arrester (6) are connected to the rear end of power switch (1).
2. reactive-load compensation equipment as described in claim 1, it is characterised in that:The current detection circuit (2) includes three electricity
Current transformer (21) and three ammeters (22), wherein three current transformers (21) are mounted on the lower end of power switch (1), and
Secondary side one end of three current transformers (21) is electrically connected with three ammeter (22) one end respectively, and three ammeters (22) are another
One end is grounded after being electrically connected with the secondary side other end of three current transformers (21).
3. reactive-load compensation equipment as described in claim 1, it is characterised in that:The secondary circuit fuse (3) includes fusing
Device 4FU, fuse 5FU and fuse 6FU, wherein fuse 4FU, fuse 5FU, fuse 6FU front end respectively with power supply
Master switch (1) is electrically connected, and the rear end of fuse 4FU is electrically connected with the body contact b1 of manual automatic transfer switch (10);Fusing
The rear end of device 5FU is electrically connected with the auxiliary contact of electrothermal relay FR;The rear end of fuse 6FU and manual automatic transfer switch (10)
Body contact b3 electrical connection.
4. reactive-load compensation equipment as described in claim 1, it is characterised in that:The auto compensation unit (4) includes electric successively
Miniature circuit breaker QF, the A.C. contactor KM of connection, electrothermal relay FR and three-phase power capacitor C, wherein A.C. contactor KM
Coil upper end be electrically connected manual automatic transfer switch (10) and reactive power self-compensating controlling device (9), exchange connects
The auxiliary contact upper end electrical connection of the coil lower end of tentaculum KM and corresponding electrothermal relay FR;Reactive power self-compensating controlling device
(9) power supply terminal Ua, power supply terminal Uc is electric with the body contact b2 of manual automatic transfer switch (10), body contact b4 respectively
Connection, current terminal Ib and power-factor meter (8) current terminal electrical connection of reactive power self-compensating controlling device (9) are idle
The current terminal I* of Reactive Power Automatic Compensation Controller (9) and secondary side one end of sampled current transformer (7) are electrically connected and are grounded.
5. reactive-load compensation equipment as claimed in claim 4, it is characterised in that:The auxiliary contact upper end of the A.C. contactor KM
The rear ends fuse 4FU electrical connection after all connecting into a little and in secondary circuit fuse (3), the auxiliary of electrothermal relay FR are touched
The rear end electrical connection of fuse 5FU after point lower end connects into a little and in secondary circuit fuse (3).
6. reactive-load compensation equipment as described in claim 1, it is characterised in that:The manual compensation unit (5) includes small-sized disconnected
Road device * QF and three-phase power capacitor * C, the wherein front end of miniature circuit breaker * QF and auto compensation unit (4) and arrester (6)
It connects together, the rear end of miniature circuit breaker * QF is electrically connected with three-phase power capacitor * C.
7. reactive-load compensation equipment as described in claim 1, it is characterised in that:The reactive-load compensation equipment further includes voltage switching
Circuit, voltage switching circuit by voltmeter (11), voltage switching circuit change-over switch (12), voltage switching circuit fuse 1FU,
Voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU compositions, wherein voltage switching circuit fuse 1FU, electricity
Press switching circuit fuse 2FU and voltage switching circuit fuse 3FU front end respectively with power switch (1) upper end busbar L1,
Busbar L2, busbar L3 electrical connection, voltage switching circuit change-over switch (12) be separately mounted to voltage switching circuit fuse 1FU,
On voltage switching circuit fuse 2FU and voltage switching circuit fuse 3FU, voltmeter (11) one end turns with voltage switching circuit
Change body contact b2, the body contact b6 electrical connections of switch (12), the sheet of the other end and voltage switching circuit change-over switch (12)
Body contact b8, body contact b12 electrical connections;The body contact b1 and voltage switching circuit of voltage switching circuit change-over switch (12)
The rear end of fuse 1FU is electrically connected, and body contact b5, body contact b7 and the voltage of voltage switching circuit change-over switch (12) are cut
The rear end electrical connection of road fuse 2FU is gained, the body contact b11 and voltage of voltage switching circuit change-over switch (12) are switched back into
The road rear ends fuse 3FU are electrically connected.
8. reactive-load compensation equipment as claimed in claim 4, it is characterised in that:The auxiliary contact lower end of the A.C. contactor KM
It is also associated with switching indicator light.
9. reactive-load compensation equipment as described in claim 1, it is characterised in that:The arrester (6) is three, wherein three are kept away
Thunder device (6) one end and auto compensation unit (4) and manual compensation unit (5) are connected to power switch (1) lower end together, and three are kept away
Ground connection after thunder device (6) other end connects into a bit.
10. reactive-load compensation equipment as described in claim 1, it is characterised in that:Auto compensation unit (4) quantity be 1~
12。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602104.8A CN108695860A (en) | 2018-06-12 | 2018-06-12 | A kind of reactive-load compensation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602104.8A CN108695860A (en) | 2018-06-12 | 2018-06-12 | A kind of reactive-load compensation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108695860A true CN108695860A (en) | 2018-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810602104.8A Pending CN108695860A (en) | 2018-06-12 | 2018-06-12 | A kind of reactive-load compensation equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066788Y (en) * | 2007-07-20 | 2008-05-28 | 马振芳 | Automatic compensation device for instantaneous passive power of dual-phase solid relay control |
| CN104734163A (en) * | 2014-11-19 | 2015-06-24 | 马国平 | Power factor compensation device in light-load operating of transformer, connecting system and compensation method thereof |
| CN208433758U (en) * | 2018-06-12 | 2019-01-25 | 六盘水金星机电设备有限公司 | A kind of reactive-load compensation equipment |
-
2018
- 2018-06-12 CN CN201810602104.8A patent/CN108695860A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201066788Y (en) * | 2007-07-20 | 2008-05-28 | 马振芳 | Automatic compensation device for instantaneous passive power of dual-phase solid relay control |
| CN104734163A (en) * | 2014-11-19 | 2015-06-24 | 马国平 | Power factor compensation device in light-load operating of transformer, connecting system and compensation method thereof |
| CN208433758U (en) * | 2018-06-12 | 2019-01-25 | 六盘水金星机电设备有限公司 | A kind of reactive-load compensation equipment |
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Address after: 553000 No. 199 Chengnan Road, Zhongshan District, Liupanshui, Guizhou Applicant after: Liupanshui Venus Electromechanical Equipment Co.,Ltd. Address before: 553000 Room 401, 8 Qing Zheng lane, Zhongshan District, Liupanshui, Guizhou Applicant before: Liupanshui Venus Electromechanical Equipment Co.,Ltd. |
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