CN208638032U - A kind of 10kVSF6 load ratio bridging switch route series winding automatic pressure regulating device - Google Patents

Abstract

The utility model discloses a kind of 10kVSF6 load ratio bridging switch route series winding automatic pressure regulating devices, including auto-type transformer, auto-type transformer includes outer housing, insulator is equipped at the top of outer housing, shell intracoelomic cavity is equipped with three pillar type iron core, there are three windings altogether on three pillar type iron core, it is three-phase shunt connection of excitation wind, three-phase series excitation winding and single-phase control winding respectively, three-phase series excitation winding has multiple taps, multiple taps are connected between input and output by the different contacts of tap switch, and three-phase shunt connection of excitation wind is public winding；Secondary side of the single-phase control winding as one phase of shunt connection of excitation wind, the utility model use autocoupling type pressure adjusting structure, keep the capacity of whole device big and small in size, structure is simple, is easily installed maintenance；Output voltage variation adjustment tap changer gear is automatically tracked, voltage Adjustment precision is high, reliable in action, it is ensured that the requirement of user's voltage；To improve power supply reliability, convenient for overhaul of the equipments, maintenance.

Description

A kind of 10kVSF6 load ratio bridging switch route series winding automatic pressure regulating device

Technical field

The utility model relates to regulator technical field, specially a kind of 10kVSF6 load ratio bridging switch route series winding Automatic pressure regulating device.

Background technique

Voltage is one of electric energy primary quality measure, it is to the stabilization of power grids and power equipment safety operation, line loss, work Secure agricultural production and people's lives electricity consumption have a direct impact.Brownout will cause equipment undercapacity or work is abnormal, Overtension will affect the safety of electricity consumption again.At present there are two ways to common adjusting voltage: one is be with substation bus bar Benchmark changes the pressure regulation of main transformer load tap changer, and this method cannot be guaranteed the voltage stabilization of whole separated time roads, and frequently It is bigger on the safe operation of main transformer influence to adjust main transformer tap；Another method is switched capacitor, with reduce route without Function pressure drop achievees the purpose that pressure regulation, and the method applicable surface is limited, range of regulation is small, it is difficult to achieve the desired results.It is above-mentioned to solve The limitation of two kinds of pressure regulation methods has developed a kind of 10kV route series winding automatic voltage regulator device, it is that one kind can be adjusted automatically No-load voltage ratio is saved to guarantee the device of output voltage stabilization.

Utility model content

The purpose of this utility model is to provide a kind of 10kVSF6 load ratio bridging switch route contact automatic pressure regulating device, To solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides the following technical solutions: a kind of 10kVSF6 load ratio bridging switch route Series winding automatic pressure regulating device, including auto-type transformer, the auto-type transformer include outer housing, are set at the top of the outer housing There is an insulator, the shell intracoelomic cavity is equipped with three pillar type iron core, and it is three-phase respectively that there are three windings altogether on the three pillar type iron core Shunt connection of excitation wind, three-phase series excitation winding and single-phase control winding, the three-phase series excitation winding have multiple taps, and multiple taps are by dividing The different contacts for connecing switch are connected between input and output, for changing pressure regulator no-load voltage ratio；The three-phase shunt connection of excitation wind is public affairs Winding altogether generates the magnetic field of transmitting energy；Secondary side of the single-phase control winding as one phase of shunt connection of excitation wind, for providing control System working power processed and voltage sampling signal, the outer housing side are also equipped with control cabinet, are equipped in the control cabinet Controller, switching signal collector, current transformer and voltage transformer, the controller are separately connected switching signal acquisition Device, current transformer and voltage transformer.

Preferably, the breaker with disconnecting switch is connected in series in the auto-type transformer source side, and the band is kept apart Isolation knife, the isolation knife is connected in series in the breaker series-connected switches voltage regulator of pass, the regulator Connect auto-type transformer load side；The breaker with disconnecting switch and between regulator installation first it is lightning-arrest Device；Second arrester is installed between the regulator and isolation knife.

It preferably, further include pre-power supply change and the bypass breaker with isolation knife, the pre-power supply change is mounted on certainly Coupling formula transformer frequency response side, the one end Jie auto-type transformer source side of bypass breaker with isolation knife, another termination In auto-type transformer load side.

Compared with prior art, the utility model has the beneficial effects that the utility model uses autocoupling type pressure adjusting structure, make The capacity of whole device is big and small in size, and structure is simple, is easily installed maintenance；Output voltage variation adjustment tap is automatically tracked to open Gear is closed, voltage Adjustment precision is high, reliable in action, it is ensured that the requirement of user's voltage；To improve power supply reliability, it is convenient for equipment Maintenance, maintenance, pole-mounted circuit breaker of the installation with disconnecting switch realizes auto by pass function between input terminal and output end.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model single line without bypass access schematic diagram；

Fig. 3 is the utility model single line band bypass access schematic diagram.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of 10kVSF6 load ratio bridging switch route string Even automatic pressure regulating device, including auto-type transformer, the auto-type transformer include outer housing 1, are set at the top of the outer housing 1 There is an insulator 2,1 inner cavity of outer housing is equipped with three pillar type iron core 3, and there are three windings altogether on the three pillar type iron core 3, is respectively Three-phase shunt connection of excitation wind 4, three-phase series excitation winding 5 and single-phase control winding 6, the three-phase series excitation winding 4 have multiple taps, multiple pumpings Head is connected between input and output by the different contacts of tap switch, for changing pressure regulator no-load voltage ratio；The three-phase shunt excitation Winding 4 is public winding, generates the magnetic field of transmitting energy；Secondary side of the single-phase control winding 6 as one phase of shunt connection of excitation wind, For providing control system working power and voltage sampling signal, 1 side of outer housing is also equipped with control cabinet 8, the control Controller, switching signal collector, current transformer and voltage transformer are installed, the controller is separately connected in cabinet 8 processed Switching signal collector, current transformer and voltage transformer.

Load ratio bridging switch changeover contact in load-carrying situation adjusts transformer voltage ratio to keep stable output electricity Pressure.According to different requirements, the load ratio bridging switch of one-way pressure-regulating device is 7 grades, and the load ratio bridging switch of bidirectional pressure regulating device is 9 grades. Control cabinet internal controller acquires line voltage distribution, current signal and tap changer gear signal, according to the pressure regulation strategy of program setting Pressure regulation order is issued, realizes on-load voltage regulation.With breaker with the use of the protection realized to equipment.Controller collects self coupling change After system voltage and current signal that depressor provides, data are analyzed, are counted according to setting value and tap switch current gear It calculates, determines a need for transferring the files and issuing corresponding actions instruction, so as to adjust pressure regulator no-load voltage ratio, guarantee that constant output voltage is fixed It meets the requirements.

In the utility model, the breaker 9 with disconnecting switch, the band isolation is connected in series in auto-type transformer source side The 9 series-connected switches voltage regulator 10 of breaker of switch, the 10 connection isolation knife 11 of regulator series connection, institute It states isolation knife 11 and connects auto-type transformer load side；The breaker 9 with disconnecting switch and regulator 10 it Between the first arrester 12 is installed；Second arrester 13 is installed between the regulator 10 and isolation knife 11；Further include Pre-power supply becomes 14 and the bypass breaker 7 with isolation knife, and the pre-power supply becomes 14 and is mounted on auto-type transformer source side, The 7 one end Jie auto-type transformer source side of bypass breaker with isolation knife, another auto-type transformer that terminates at are born Lotus side.

In the utility model, pressure regulator input terminal should install the pole-mounted circuit breaker with disconnecting switch, arrester, and output end is answered Zinc oxide surge arresters, single-phase isolating switch；The range of voltage adjust automatically is -10%~20%Un of voltage rating, pressure regulation process Control automatically controls simultaneous manually control；Pressure regulation process control automatically controls simultaneous manually control；Using autocoupling type pressure adjusting structure, make whole The capacity of a device is big and small in size, and structure is simple, is easily installed maintenance；Automatically track output voltage variation adjustment tap switch Gear, voltage Adjustment precision is high, reliable in action, it is ensured that the requirement of user's voltage；To improve power supply reliability, examined convenient for equipment It repairs, safeguard, pole-mounted circuit breaker of the installation with disconnecting switch realizes auto by pass function between input terminal and output end.

Controller can monitor the output voltage and electric current of pressure regulator, when the deviation of output voltage values and reference voltage value is big In allowed band and more than after the corresponding time, control system, which issues instruction, acts three-phase load ratio bridging switch, control system Should have the function of issuing trip command to pole-mounted circuit breaker in circuit overload, control system should have when pressure regulator outlet Trip command is issued to the pole-mounted circuit breaker provided protection against when end voltage is more than 1.2Um, on the column that bypass functionality is provided Breaker issues the function of reclosing command, and control system should have data storage function, can store three months action records, whole Defencive function: point record, maximum voltage, electric current, fault message are equipped with overcurrent protection, when pressure regulator is in over-current state time control System automatic blocking processed；Equipped with under-voltage protection, when line voltage distribution is in under-voltage condition, control system automatic blocking；Equipped with day Action frequency limitation protection, when action frequency reaches setting value, control system automatic blocking；It is limited with most high-grade, deep low gear Position protection, prevents the maloperation being likely to occur under various modes；Communication function: equipment should have there are two independent RS232 communicate Interface can both realize the monitoring of 30~50m spacing by short-distance wireless module, while can also be realized by GPRS long-range Communication.When being communicated using GPRS module, should meet can monitor pressure regulator input terminal voltage on terminal computer, output end electricity Pressure, the state of the gear of pressure regulator, electric current and pressure regulator front end breaker；And it can remotely be repaired by computer and GPRS realization Change the parameter of pressure regulator, controls pressure regulator ascending, descending shelves.Supplier is responsible for providing GPRS communication module, has the item of signal in mobile phone Under part, the online rate 100% of GPRS, and be responsible for the equipment accessing background monitoring system.

In addition, 10kV automatic feeder line voltage regulator can adjust input voltage in the range of -10%~20% automatically Section, suitable for the route that voltage fluctuation is big or pressure drop is big.Pressure regulator is mounted on the middle rear end of feeder line, right in a certain range Line voltage distribution is adjusted, and guarantees the supply voltage of user, reduces the line loss of route；In addition, the equipment is also applied for main transformer not Have the substation of pressure regulation ability, this pressure regulator is mounted on substation transformer outgoing line side, guarantees outlet side bus voltage It is qualified.

In conclusion the utility model uses autocoupling type pressure adjusting structure, keep the capacity of whole device big and small in size, structure Simply, it is easily installed maintenance；Output voltage variation adjustment tap changer gear is automatically tracked, voltage Adjustment precision is high, and movement can It leans on, it is ensured that the requirement of user's voltage；To improve power supply reliability, convenient for overhaul of the equipments, maintenance, between input terminal and output end Pole-mounted circuit breaker with disconnecting switch is installed and realizes auto by pass function.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (3)

1. The automatic pressure regulating device 1. a kind of 10kVSF6 load ratio bridging switch route is contacted, including auto-type transformer, feature exist In: the auto-type transformer includes outer housing (1), is equipped with insulator (2) at the top of the outer housing (1), the outer housing (1) Inner cavity is equipped with three pillar type iron core (3), altogether there are three winding on the three pillar type iron core (3), be respectively three-phase shunt connection of excitation wind (4), Three-phase series excitation winding (5) and single-phase control winding (6), the three-phase series excitation winding (4) have multiple taps, and multiple taps are by dividing The different contacts for connecing switch are connected between input and output, for changing pressure regulator no-load voltage ratio；The three-phase shunt connection of excitation wind (4) is Public winding generates the magnetic field of transmitting energy；Secondary side of the single-phase control winding (6) as one phase of shunt connection of excitation wind, is used to Control system working power is provided and voltage sampling signal, outer housing (1) side are also equipped with control cabinet (8), the control Controller, switching signal collector, current transformer and voltage transformer are installed in cabinet (8) processed, the controller connects respectively Connect switching signal collector, current transformer and voltage transformer.
2. The automatic pressure regulating device 2. a kind of 10kVSF6 load ratio bridging switch route according to claim 1 is contacted, feature exist In: the breaker (9) with disconnecting switch, the breaker with disconnecting switch is connected in series in the auto-type transformer source side (9) isolation knife (11) are connected in series in series-connected switches voltage regulator (10), the regulator (10), it is described every Auto-type transformer load side is connected from knife (11)；The breaker (9) with disconnecting switch and regulator (10) Between the first arrester (12) are installed；The second arrester is installed between the regulator (10) and isolation knife (11) (13)。
3. The automatic pressure regulating device 3. a kind of 10kVSF6 load ratio bridging switch route according to claim 1 is contacted, feature exist In: it further include that pre-power supply becomes (14) and bypass breaker (7) with isolation knife, the pre-power supply becomes (14) and is mounted on self coupling Formula transformer frequency response side, (7) the one end Jie auto-type transformer source side of bypass breaker with isolation knife, another termination In auto-type transformer load side.