CN107394622A - A kind of new prefabricated cabin formula transformer - Google Patents

Abstract

The present invention discloses a kind of new prefabricated cabin formula transformer, including prefabricated box, line interval and survey guarantor interval, and two days parallel bus, the interval includes cable termination, inlet wire interval and main transformer interval, first bus isolating switch, the first disconnecting switch, the second disconnecting switch, transformer one, breaker one, arrester, the prefabricated cabin formula transformer station realize insulation using external thermal insulation.Its is safe to use, operating efficiency is high, and application prospect is preferable.

Description

A kind of new prefabricated cabin formula transformer

Technical field

The present invention relates to high-voltage electrical equipment field, more particularly to a kind of new prefabricated cabin formula transformer.

Background technology

Prefabricated cabin formula combination secondary device is by groups such as nacelle, nacelle auxiliary equipment, secondary device screen cabinet, secondary devices Into.Prefabricated cabin completes the work such as related layouts, debugging in factory, is transported as an entirety to job site, nearby It is arranged near primary equipment, completes connection and debugging with primary equipment.Prefabricated cabin formula combine secondary device appearance, be for Meet the management philosophy of intelligent substation and the requirements at the higher level of construction mode.Therefore, it is secondary actively to promote the combination of prefabricated cabin formula Equipment, life cycle management cost of investment can be effectively reduced, shorten the construction period, improve engineering construction quality.

Transformer station generally includes transformer, switch cubicle, linear quadratic control equipment and gas-insulating and fully-enclosed combined electrical apparatus（Gas Insulated Substation, hereinafter referred to as：GIS combination electric appliance）Deng electric equipment；Wherein, GIS combination electric appliance generally includes The charging members such as breaker, disconnecting switch, earthed switch, transformer, arrester, bus and cable termination, above-mentioned charging member Optimized design is closed by metallic conduit, and the SF6 insulating gas filled with certain pressure in the metallic conduit of closing.Generally In the case of, GIS combination electric appliance can be provided with multigroup inlet wire interval and main transformer interval, be commonly connected to one or two buses On, bus section is connected using at least one set of mother section gap, also, each section of bus is correspondingly arranged on segmentation and surveyed between guarantor Every；Wherein, inlet wire interval generally includes corresponding cable termination, disconnecting switch, earthed switch, transformer, breaker and taken shelter from the thunder Device, main transformer interval generally include cable termination, disconnecting switch and earthed switch, and segmentation, which surveys to protect to be spaced, includes disconnecting switch and mutual inductance Device, section gap include breaker, disconnecting switch, transformer；The cable termination at inlet wire interval introduces high-tension electricity, and between main transformer Every high-tension electricity is delivered into transformer.GIS combination electric appliance of the prior art generally sets a longer bus, multipair inlet wire Interval and main transformer interval and segmentation are surveyed guarantor interval and are connected to by respective disconnecting switch on bus so that GIS combination electric appliance Fish bayonet fittings are integrally formed, this make it that the width dimensions of GIS combination electric appliance are larger, can not realize that prefabricated cabin formula is arranged, and It is not readily transportable.

Prefabricated cabin formula combination secondary device scheme is applied among multiple pilot projects of Guo Wang companies, and its technology obtains Rapid Popularization and development.But produced problem in many practices is at the same time also exposed, is mainly reflected in following several Individual aspect 1) at present most of prefabricated cabin still use old-fashioned screen cabinet, cause nacelle and screen cabinet repetition；2）Protective treatment, enter cabin behaviour Make, screen cabinet specification is not easy unification between producer.3) space is limited in cabin, if secondary device shields space in cabinet by interval group screen Utilization rate is low, and screen cabinet quantity is more, influences space in cabin.4) space at present in secondary device cabin is generally narrow and small, it has not been convenient to safeguards With operation.5) reorganization and expansion complex operation at a specified future date, difficulty of construction are big eventually for prefabricated cabin formula combination secondary device.6) temperature control system needs excellent Change, industrial air-conditioning noise is larger, and temperature control effect is poor, is also easy to produce dew condensation phenomenon.Therefore, intelligent substation is built to existing moduleization Prefabricated cabin formula combination secondary device scheme redesigns and optimization, the application to promoting prefabricated cabin formula combination secondary device, improves The constructing benefits of intelligent substation have great significance.

The content of the invention

It is an object of the invention to overcome the shortcomings of the prior art, due to being limited by traffic condition, prefabricated cabin is usual Using inside holding mode, inner thermal insulating layer is generally combined into one with interior finish material, however, the casing of inside holding form easily occurs Heat bridge phenomenon prevents condensation and mouldy influence normal operation, it is necessary to handle.The application is realized using external thermal insulation.

Provide following technical scheme：

Interval, and two days parallel bus, institute are protected in a kind of new prefabricated cabin formula transformer, including prefabricated box, line interval and survey Stating interval includes cable termination, inlet wire interval and main transformer interval, the first bus isolating switch, the first disconnecting switch, the second isolation Switch, transformer one, breaker one, arrester, the cable termination and the transformer one are kept apart with described first respectively Connection is connect, and the breaker one is connected between the transformer one and second disconnecting switch；The guarantor interval of surveying includes Second bus isolating switch and the second transformer, bus connects the first bus isolating switch again and second bus is kept apart Close.The main transformer interval includes outlet cable terminal and disconnecting switch three, and the outlet cable terminal passes through the disconnecting switch Three are connected with disconnecting switch two；The segmentation survey guarantor interval includes a mother section gap and two surveys are protected and are spaced, the mother Connection section gap includes breaker two, transformer two and two disconnecting switch four, the breaker two and the transformer two-phase Connect, the breaker two and the transformer two are connected between two disconnecting switch four, and described survey protects interval bag The transformer three to link together and disconnecting switch five are included, the disconnecting switch five connects with the corresponding disconnecting switch four； Be provided between inlet-outlet line interval described in two adjacent groups it is described segmentation survey protect interval, the disconnecting switch two by bus with it is corresponding The disconnecting switch four connect, the inlet-outlet line interval, it is described segmentation survey protect interval and the bus formed linear structure, institute State inlet-outlet line interval, guarantor interval is surveyed in the segmentation and the bus is located in the prefabricated box.

The insulation construction of the transformer realized using external thermal insulation, the external heat insulating wall by golden nation's plate, breathing paper, Rock wool, Europe deals composition.

The advantages of the present invention are：

Advantages of the present invention and positive performance are：Transformer station provided by the invention, by by the inlet wire interval in same group and master Changing distance is uniformly connected on bus again after linking together so that bus interruption is set, and bus is by every group of inlet-outlet line interval with dividing Section, which is surveyed, protects interval connection so that overall structure is in linear structure, without being arranged side by side in the both sides of same root bus between inlet wire Surveyed every, main transformer interval and segmentation and protect interval so that prefabricated cabin formula GIS combination electric appliance whole width size reduces, and meets prefabricated cabin Formula arrangement requirement so that prefabricated cabin formula GIS combination electric appliance is easy to whole Transporting.Simultaneously as bus is set for interruption, effectively Reduce the usage amount of bus, reduce the manufacturing cost of prefabricated cabin formula GIS combination electric appliance.

In order that those skilled in the art more fully understand the technical scheme in the application, have below in conjunction with the application Body embodiment, the technical scheme of the application is clearly and completely described, it is clear that described embodiment is only this Shen Please part of the embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not having There is the every other embodiment made and obtained under the premise of creative work, should all belong to the scope of protection of the invention.

Embodiment

Embodiment 1

Interval, and two days parallel bus, institute are protected in a kind of new prefabricated cabin formula transformer, including prefabricated box, line interval and survey Stating interval includes cable termination, inlet wire interval and main transformer interval, the first bus isolating switch, the first disconnecting switch, the second isolation Switch, transformer one, breaker one, arrester, the cable termination and the transformer one are kept apart with described first respectively Connection is connect, and the breaker one is connected between the transformer one and second disconnecting switch；The guarantor interval of surveying includes Second bus isolating switch and the second transformer, bus connects the first bus isolating switch again and second bus is kept apart Close.The main transformer interval includes outlet cable terminal and disconnecting switch three, and the outlet cable terminal passes through the disconnecting switch Three are connected with disconnecting switch two；The segmentation survey guarantor interval includes a mother section gap and two surveys are protected and are spaced, the mother Connection section gap includes breaker two, transformer two and two disconnecting switch four, the breaker two and the transformer two-phase Connect, the breaker two and the transformer two are connected between two disconnecting switch four, and described survey protects interval bag The transformer three to link together and disconnecting switch five are included, the disconnecting switch five connects with the corresponding disconnecting switch four； Be provided between inlet-outlet line interval described in two adjacent groups it is described segmentation survey protect interval, the disconnecting switch two by bus with it is corresponding The disconnecting switch four connect, the inlet-outlet line interval, it is described segmentation survey protect interval and the bus formed linear structure, institute State inlet-outlet line interval, guarantor interval is surveyed in the segmentation and the bus is located in the prefabricated box；

The insulation construction of the transformer realizes that the external heat insulating wall is by golden nation's plate, breathing paper, rock using external thermal insulation Cotton, Europe deals composition.

Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn Among the obvious changes or variations that Shen goes out is still in protection scope of the present invention.

Claims (1)

1. interval, and two days parallel bus are protected in a kind of new prefabricated cabin formula transformer, including prefabricated box, line interval and survey, The interval includes cable termination, inlet wire interval and main transformer interval, the first bus isolating switch, the first disconnecting switch, second every Pass, transformer one, breaker one, arrester are left, the cable termination and the transformer one are isolated with described first respectively Switch connection, the breaker one are connected between the transformer one and second disconnecting switch；Described survey protects interval bag Include the second bus isolating switch and the second transformer, bus connects the first bus isolating switch again and second bus is kept apart Close；The main transformer interval includes outlet cable terminal and disconnecting switch three, and the outlet cable terminal passes through the disconnecting switch Three are connected with disconnecting switch two；The segmentation survey guarantor interval includes a mother section gap and two surveys are protected and are spaced, the mother Connection section gap includes breaker two, transformer two and two disconnecting switch four, the breaker two and the transformer two-phase Connect, the breaker two and the transformer two are connected between two disconnecting switch four, and described survey protects interval bag The transformer three to link together and disconnecting switch five are included, the disconnecting switch five connects with the corresponding disconnecting switch four； Be provided between inlet-outlet line interval described in two adjacent groups it is described segmentation survey protect interval, the disconnecting switch two by bus with it is corresponding The disconnecting switch four connect, the inlet-outlet line interval, it is described segmentation survey protect interval and the bus formed linear structure, institute State inlet-outlet line interval, guarantor interval is surveyed in the segmentation and the bus is located in the prefabricated box；

The insulation construction of the transformer realizes that the external heat insulating wall is by golden nation's plate, breathing paper, rock using external thermal insulation Cotton, Europe deals composition.