CN208385191U - Equipment workshop on-load regulator transformer - Google Patents

Abstract

The utility model discloses a kind of equipment workshop on-load regulator transformer, including low pressure winding and high-voltage winding, it further include the tap-changing windings being connected in series with high-voltage winding, tap-changing windings are equipped with several taps, one of tap is connected with leading-out terminal, high-voltage winding and tap-changing windings are connected with switching mechanism, switching mechanism includes the first movable contact and the second movable contact being correspondingly connected with tap, first movable contact and the second movable contact are connected with reactor, and reactor connects high-voltage winding.The utility model changes the load tapchanging mode of transformer in the prior art, reduces the dielectric level of on-load regulator transformer voltage regulation coil, realizes the effect of pressure regulation, reduce the electric current by switch, overall structure is simple, practical, is very suitable to the use of equipment workshop.

Description

Equipment workshop on-load regulator transformer

Technical field

The utility model relates to a kind of shop equipment workshop transformer more particularly to a kind of adjustable transformers.

Background technique

Transformer is as a kind of electrical equipment for realizing high-low pressure transformation, will by using distribution transformer in electricity consumption Supply arrangement uses after voltage reduces.Traditional distribution transformer is single rated capacity and no-load capacity transfer type, and no matter distribution becomes Depressor is unloaded or has load, is worked under the mode of same rated capacity, and control is not flexible, and intelligent on-load voltage regulation becomes Depressor has two kinds of rated capacities of size, can be examined automatically according to equipment institute on-load size by on-load voltage regulation intelligent controller It surveys physical device payload to judge, and issues control instruction through on-load voltage regulating switch, in the state that transformer does not have a power failure Under, automatic switching is carried out to two kinds of rated capacities of transformer, realizes transformer between two kinds of rated capacity operational modes certainly It converts dynamicly, but its production cost is higher, and certain large scale equipments are often increased or are stopped in equipment workshop, cause to load It changes.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of effects for realizing pressure regulation, reduce and pass through switch Electric current, overall structure is simple, practical equipment workshop on-load regulator transformer.

In order to solve the above technical problems, the technical solution of the utility model is: equipment workshop on-load regulator transformer, packet Low pressure winding and high-voltage winding are included, further includes the tap-changing windings being connected in series with the high-voltage winding, the tap-changing windings are equipped with Several taps, one of them described tap are connected with leading-out terminal, and the high-voltage winding is connected with the tap-changing windings and cuts It changes planes structure, the switching mechanism includes the first movable contact and the second movable contact being correspondingly connected with the tap, described First movable contact and the second movable contact are connected with reactor, and the reactor connects the high-voltage winding.

The switching mechanism further includes contactor as a preferred technical solution, first movable contact and the electricity It is equipped with first group of normally opened contact of contactor between anti-device, contactor is equipped between second movable contact and the reactor Second group of normally opened contact.

As improvement to above-mentioned technical proposal, the transformer of the high-voltage winding and the tap-changing windings series operation Iron core is laminated structure, and the high-voltage winding and the tap-changing windings use core structure.

As further improvement to above-mentioned technical proposal, the high-voltage winding and the tap-changing windings are covered in main transformer Iron core on, the tap-changing windings are arranged in main transformer neutral point side and neutral ground.

By adopting the above-described technical solution, equipment workshop on-load regulator transformer, including low pressure winding and high voltage winding Group further includes the tap-changing windings being connected in series with the high-voltage winding, and the tap-changing windings are equipped with several taps, one of them The tap is connected with leading-out terminal, and the high-voltage winding and the tap-changing windings are connected with switching mechanism, the switching mechanism Including the first movable contact and the second movable contact being correspondingly connected with the tap, first movable contact and second can Moving contact is connected with reactor, and the reactor connects the high-voltage winding.The utility model has the tap-changing windings, changes The load tapchanging mode of transformer in the prior art can be with due to being provided with the reactor in the switching mechanism For limiting the short circuit electricity of first movable contact and the second movable contact not in same position between two taps Stream, reduces the dielectric level of on-load regulator transformer voltage regulation coil, realizes the effect of pressure regulation, reduce the electricity by switch Stream, overall structure is simple, practical, is very suitable to the use of equipment workshop.

Detailed description of the invention

Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model It encloses.Wherein:

Fig. 1 is the structural schematic diagram of the utility model embodiment.

In figure: 1- low pressure winding；2- high-voltage winding；3- tap-changing windings；4- tap；5- leading-out terminal；6- first is movably touched Head；The second movable contact of 7-；8- reactor；First group of normally opened contact of 9-；Second group of normally opened contact of 10-.

Specific embodiment

With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim Range.

As shown in Figure 1, equipment workshop on-load regulator transformer, including low pressure winding 1 and high-voltage winding 2, further include with The tap-changing windings 3 that the high-voltage winding 2 is connected in series, the tap-changing windings 3 are equipped with several taps 4, and one of them described point Connector 4 is connected with leading-out terminal 5, and the high-voltage winding 2 is connected with switching mechanism, the switching mechanism packet with the tap-changing windings 3 Include the first movable contact 6 and the second movable contact 7 being correspondingly connected with the tap 4, first movable contact 6 and second Movable contact 7 is connected with reactor 8, and the reactor 8 connects the high-voltage winding 2.The present embodiment has the tap-changing windings 3, the load tapchanging mode of transformer in the prior art is changed, due to being provided with the reactor in the switching mechanism 8, it can be used to limit first movable contact 6 and the second movable contact 7 not in same position between two taps 4 Short circuit current, reduce the dielectric level of on-load regulator transformer voltage regulation coil, realize the effect of pressure regulation, reduce and pass through The electric current of switch, overall structure is simple, practical, is very suitable to the use of equipment workshop.

The switching mechanism further includes contactor, and contactor is equipped between first movable contact 6 and the reactor 8 First group of normally opened contact 9, between second movable contact 7 and the reactor 8 be equipped with contactor second group of normally opened touching Point 10.It, can be first by first group of normally opened touching of contactor when switching first movable contact 6 is connect with the tap 4 Point 9 disconnects, then first movable contact 6 switching is connected to another tap 4；Switching the described second movable touching First 7 with the tap 4 when connecting, and can first disconnect second group of normally opened contact 10 of contactor, then movable by described second The switching of contact 7 is connected to another tap 4, and first movable contact 6 and described second can be effectively prevented movably Contact 7 generates the case where electric arc deteriorates transformer insulation oil in handoff procedure.

The high-voltage winding 2 and the iron core of the transformer of 3 series operation of tap-changing windings are laminated structure, and described High-voltage winding 2 and the tap-changing windings 3 use core structure.Above structure not only can guarantee working performance, but also can save cost.

On the iron core of main transformer, the setting of tap-changing windings 3 exists for the high-voltage winding 2 and 3 sets of the tap-changing windings Main transformer neutral point side and neutral ground.Above structure not only can guarantee working performance, but also can save cost.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (4)

1. equipment workshop on-load regulator transformer, including low pressure winding and high-voltage winding, it is characterised in that: further include with it is described The tap-changing windings that high-voltage winding is connected in series, the tap-changing windings are equipped with several taps, one of them described tap connection There is leading-out terminal, the high-voltage winding and the tap-changing windings are connected with switching mechanism, and the switching mechanism includes and the tap The first movable contact and the second movable contact that head is correspondingly connected with, first movable contact and the second movable contact are connected with electricity Anti- device, the reactor connect the high-voltage winding.

2. equipment workshop as described in claim 1 on-load regulator transformer, it is characterised in that: the switching mechanism further includes Contactor is equipped with first group of normally opened contact of contactor between first movable contact and the reactor, described second can Second group of normally opened contact of contactor is equipped between moving contact and the reactor.

3. equipment workshop as described in claim 1 on-load regulator transformer, it is characterised in that: the high-voltage winding with it is described The iron core of the transformer of tap-changing windings series operation is laminated structure, and the high-voltage winding and the tap-changing windings use cylinder Formula structure.

4. equipment workshop as claimed in claim 1,2 or 3 on-load regulator transformer, it is characterised in that: the high-voltage winding It is covered on the iron core of main transformer with the tap-changing windings, the tap-changing windings are arranged in main transformer neutral point side and neutral point Ground connection.