CN201813168U - Rapid pressure regulation reactive power compensation device for mine and rail transit - Google Patents

Abstract

The utility model discloses a mine and rail transit quick voltage regulation reactive compensation device. A high-voltage load switch and an autotransformer are connected in turn on a primary end, a wire inlet end voltage transformer and phases A and C in the primary end are connected in parallel; a load voltage regulating switch adaptor is arranged in the autotransformer; a filter reactor, a power capacitor and a quick fuse are connected in turn in each phase at the secondary wire outlet end, and the two ends of the power capacitor in each phase are connected with a discharge coil in parallel; one end, which is in phases of the secondary wire outlet end of the autotransformer, of the voltage transformer is connected with an autotransformer secondary outlet wire, and the other end of the voltage transformer is connected with a zero line; a reactive control cabinet is connected with an MAE electrical motor; the MAE electrical motor is connected with the load voltage regulating switch adaptor through a switch transmission shaft; the output end of the load voltage regulating switch adaptor is connected with the reactive controller of the reactive control cabinet; and the reactive controller is connected with a voltage regulating drive controller.

Description

The quick voltage-regulating reactive compensator of mine and track traffic

Technical field

The utility model relates to a kind of voltage regulating imaginary power compensation arrangement, especially fast the reactive power compensator of pressure regulation.

Background technology

Present voltage regulating imaginary power compensation arrangement mainly is made of high voltage load switch 2, autotransformer 3, on-load voltage regulating switch, voltage transformer, current transformer, filter reactor, capacitor and idle control cubicle 20.Idle control cubicle is idle according to circuit vacancy, adjusts the transformer gear, by the voltage at change building-out capacitor two ends, thereby feeds back different reactive powers to compensating circuit.But, common three-phase/single-phase autotransformer, single-unit transfer the files the time at 10s between the 15s, seriously limited system response time.Because system response time is slow,, can't reach the requirement of timely compensation vacancy reactive power so change fast occasion in reactive power.

Summary of the invention

In order to solve the problem of existing voltage regulating imaginary power compensation arrangement low-response, the utility model provides a kind of voltage regulating imaginary power compensation arrangement.This installs average single-unit and transfers the files the time less than 0.8s, and single-unit switch switch speed is less than 50ms, can satisfy in reactive power to change the requirement that in the fast occasion vacancy reactive power is in time compensated.

For achieving the above object, the utility model is by the following technical solutions:

The utility model comprises high voltage load switch, autotransformer and idle control cubicle, described high voltage load switch and autotransformer once the end be linked in sequence, in once holding, end of incoming cables voltage transformer and A, C two are in parallel, and the end of incoming cables current transformer is connected in the B circuitry phase and advances high voltage load switch; Assembling on-load voltage regulating switch tap connector in described autotransformer; At every filter reactor, electric capacitor and the fast acting fuse of being linked in sequence in mutually of autotransformer secondary leading-out terminal, every mutually in the two ends parallel discharge coil of electric capacitor; Voltage transformer autotransformer secondary leading-out terminal every mutually in an end connect the outlet of autotransformer secondary, an end connects zero line; Described idle control cubicle links to each other with the MAE motor drive mechanism by aviation company's wiring; The MAE motor drive mechanism links to each other with the on-load voltage regulating switch tap connector by the switch power transmission shaft, and the output of on-load voltage regulating switch tap connector connects the reactive controller in the idle control cubicle, and reactive controller connects the pressure regulation driving governor.

Described idle control cubicle links to each other with the MAE motor drive mechanism with 19 core aviation companys wiring by the wiring of 5 core aviation companys respectively.

Adopt the utility model of technique scheme, adopt novel quick oil immersed type on-load voltage regulating switch tap connector, make autotransformer single-unit switch switching time less than 50ms; By improving control program, make the average single-unit of device transfer the files the time less than 0.8s.Like this, the utility model has satisfied the requirement of timely compensation vacancy reactive power.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model.

Among the figure, the 1--three-phase and four-line; The 2--high voltage load switch; The 3--autotransformer; 4--on-load voltage regulating switch tap connector; The 5--filter reactor; The 6--discharge coil; The 7--electric capacitor; The 8--voltage transformer; The 9--fast acting fuse; The 10--current transformer; 11--high voltage load switch separating brake drive wire bag; The warm feedback signal of 12--oil; 13--gas feedback signal; 14--switch power transmission shaft; The 15--MAE motor drive mechanism; The wiring of 16--5 core aviation company; The wiring of 17--19 core aviation company; 18--pressure regulation driving governor; The 19--reactive controller; The idle control cubicle of 20--; 21--high voltage load switch branch/combined floodgate feedback signal; 22--gear feedback signal; 23--gear control signal; 24--end of incoming cables voltage transformer; 25--end of incoming cables current transformer.

Embodiment

As shown in Figure 1, the utility model comprises high voltage load switch 2, autotransformer 3 and idle control cubicle 20, above-mentioned high voltage load switch 2 and autotransformer 3 once the end be linked in sequence.

In once holding, end of incoming cables voltage transformer 24 is in parallel with A, C two, and end of incoming cables current transformer 25 is connected on and advances high voltage load switch 2 in the B circuitry phase; Assembling on-load voltage regulating switch tap connector 4 in autotransformer 3.At every filter reactor 5, electric capacitor 7 and the fast acting fuse 9 of being linked in sequence in mutually of autotransformer 3 secondary leading-out terminals, every mutually in the two ends parallel discharge coil 6 of electric capacitor 7; Voltage transformer 8 autotransformer 3 secondary leading-out terminals every mutually in an end connect autotransformer 3 secondary outlets, an end connects zero line.

Above-mentioned idle control cubicle 20 links to each other with MAE motor drive mechanism 15 with 19 core aviation companys wiring 17 by 5 core aviation companys wiring 16; MAE motor drive mechanism 15 links to each other with on-load voltage regulating switch tap connector 4 by switch power transmission shaft 14.On-load voltage regulating switch tap connector 4 is with various signals, comprise oily temperature feedback signal 12, gas feedback signal 13, on-load switch separating brake drive wire bag 11, voltage transformer signal 8, current transformer signal 10, on-load switch branch/combined floodgate feedback signal 21, gear feedback signal 22 is sent into reactive controller 19; Reactive controller 19 is connected with pressure regulation driving governor 18 by gear control signal 23.

Claims (2)

1. A mine and rail transit fast voltage regulation reactive power compensation device, it comprises high-voltage load switch (2), autotransformer (3) and reactive power control cabinet (20), described high-voltage load switch (2) and The autotransformer (3) is connected sequentially at the primary end, and it is characterized in that: in the primary end, the incoming line terminal voltage transformer (24) is connected in parallel with the two phases of A and C, and the incoming line end current transformer (25) is connected in series in B Into the high-voltage load switch (2) in the phase circuit; an on-load tap changer tap connector (4) is assembled in the autotransformer (3); in each phase of the secondary outlet terminal of the autotransformer (3) Connect the filter reactor (5), the power capacitor (7) and the fast fuse (9) in sequence, and connect the discharge coil (6) in parallel at both ends of the power capacitor (7) in each phase; One end of each phase of the secondary outgoing line of the transformer (3) is connected to the secondary outgoing line of the autotransformer (3), and the other end is connected to the neutral line; the reactive power control cabinet (20) is connected to the MAE electric mechanism (15) through an aviation connection line ; The MAE electric mechanism (15) is connected to the on-load tap changer tap connector (4) through the switch drive shaft (14), and the output end of the on-load tap changer tap connector (4) is connected to the reactive power control cabinet ( 20) in the reactive power controller (19), the reactive power controller (19) is connected to the voltage regulating drive controller (18). 2. The reactive power compensation device according to claim 1, characterized in that: the reactive power control cabinet (20) is connected to the 5-core aviation connection line (16) and the 19-core aviation connection line respectively. Line (17) is connected with MAE electric mechanism (15).

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