CN205562619U - Type impulse voltage generating device is aerifyd to cordwood system - Google Patents

Abstract

The utility model relates to a type impulse voltage generating device is aerifyd to cordwood system. The device is including docking inflatable insulating housing, being supported by high strength insulation support spare and constitute in the inside tower gas -insulated impulse generator of casing. Wherein tower gas -insulated impulse generator includes by a plurality of pulse capacitor, charges and keep apart the impulse generator return circuit that resistance, ball crack gas switch constitute, and a plurality of ring type shielding electrode. Aerify type impulse voltage generating device for every section and be the separate unit, but the single hop use, and the butt joint that does forms more high voltage impulse voltage generating device. The utility model discloses overall structure compactness, inherent inductance hang down, easily transport and on -site Assembly, but wide application in power equipment's field test.

Description

A kind of building block system Puffer-type surge voltage generating means

Technical field

The utility model relates to Puffer-type surge voltage generating means, especially, relates to a kind of building block system Puffer-type surge voltage generating means.

Background technology

The delivery test of power equipment is required to carry out lightning impulse pressure test with on-the-spot test, and surge voltage is typically to rely on impulse voltage generator to produce.Presently the most conventional impulse voltage generator mostly is open type surge voltage generating means, i.e. using air as dielectric.It is low that this open type impact generating means is limited by air electric strength, thus volume is big, and tower structure causes the highest, it is necessary to disassembling transport, this is unfavorable for on-the-spot test；Bulk also can cause relatively greatly loop natural inductance to increase, and is unfavorable for surge waveform steepness, when carrying out the test of Large Copacity test product, is not easy to export satisfactory steep-front High Voltage Impulse Waveform.

Utility model content

The utility model for present on problem propose a kind of new solution.

The utility model provides a kind of building block system Puffer-type surge voltage generating means, can directly be connected with test product.It is different from traditional tower surge voltage generating means, the utility model have employed the modular construction that can dock and SF6 gas-insulated, effectively controls size and the height of device, it is simple to transport and install, the test requirements document of root scene can also choose building blocks hop count, change electric pressure.Owing to the utility model is inflatable surge voltage generating means, can significantly control device volume, make compact conformation, effectively reduce body natural inductance, export steeper waveform.

According to the utility model, it is provided that a kind of building block system Puffer-type surge voltage generating means, including inflatable insulation shell can be docked, insulated impulse voltage generator in the tower gas of enclosure interior by high-strength insulating supports support, wherein,

Described tower gas insulation impulse voltage generator includes:

The standard bilateral charging impulse voltage generator loop being made up of many group pulses capacitor, phase inductive charging and isolation resistance, ball gap gas switch；

Multiple ring type bucking electrodes；

Wherein,

Described many group pulses capacitor is individually fixed on multiple high-strength insulating plate, and connecting between every group capacitor has ball gap gas switch；

Multiple insulation boards are the most parallel to be fixed on four high-strength insulating pillars, and layer and interlayer rely on the tubular supporting piece being placed on insulation column to support；

The insulated supports such as described insulation board and insulation column use the high-strength insulating material such as epoxy glass fiber, it is desirable to both had supporting role, and met insulating requirements simultaneously；

Ring type bucking electrode is positioned at around every grade of impulse capacitor, plays the effect of uniform electric field；

Afterbody ring type bucking electrode is connected with output conductor.

Described tower gas insulation impulse voltage generator is placed in inflation housing.

In described inflation shell, internal dielectric can be pure SF₆Gas or SF₆/N₂Mixed gas is made, wherein, and SF₆/N₂SF in mixed gas₆Content is between 15% to 95%；In housing, inner gas pressure is between 0.2 MPa to 0.4MPa, SF₆/N₂The inner gas pressure of mixed gas is slightly above SF₆。

Described inflation housing is tubular structure, and material is insulating materials, and such as epoxy glass fiber, every section of height is less than 3.5 meters.

Described Puffer-type surge voltage generating means is absolute construction, can dock with other sections, wherein,

Except head and the tail two-piece housing, metal flange is all docked at remaining every piece housing top with afterbody；

Every piece housing top all has three and docks metallic conductor with afterbody, respectively surge voltage output and positive and negative charging end；

Docking metallic conductor relies on disc insulator or insulating materials to support；

Lowermost housing contains support base, and uppermost housing contains surge voltage output conductor, can be connected with test product.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing further understanding of the disclosure, constitutes the part of the application.In the accompanying drawings:

Fig. 1 is the planar structure schematic diagram of the building block system Puffer-type surge voltage generating means of one embodiment of the disclosure.

Fig. 2 is that the structure of the building block system Puffer-type surge voltage generating means abutted flange of one embodiment of the disclosure is intended to.

Detailed description of the invention

Below with reference to the accompanying drawing of the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model rather than whole embodiments.Special declaration, description below the most simply serves Macroscopical Explanation and the effect of example explanation, never the disclosure and application thereof or use is carried out any restriction.Unless stated otherwise, otherwise, the parts illustrated in an embodiment and the positioned opposite and numerical expression of step and numerical value are not limiting as the scope of the present disclosure.Simultaneously, it should be appreciated that for the ease of describing, the size of the various piece shown in accompanying drawing is not to draw according to actual proportionate relationship.It addition, technology well known by persons skilled in the art, method and apparatus may not be discussed in detail, but it is meant as a part for specification in appropriate circumstances.

Fig. 1 is the single hop tank body cross-sectional view of building block system Puffer-type surge voltage generating means.Including the check valve that insulation inflation housing 1, abutted flange 10 when dock with other sections and holding gas circuit are unimpeded, and insulate impulse voltage generator with gas for the tower gas that dielectric is placed in enclosure interior 2.The charging voltage generating means of this gas-insulated structure can be obviously reduced device volume, miniaturization of the apparatus, lightweight.

Tower gas insulation impulse voltage generator includes:

By impulse capacitor 4, ball gap gas switch 5, and the tradition bilateral impulse voltage generator loop that corresponding resistor is constituted；

Ring type bucking electrode 3；

Device pedestal 6, and the charging device 7 being attached thereto；

Insulating barrier and insulation column 8；

The output bus 9 being connected with afterbody ring type bucking electrode.

Wherein,

Described insulation inflation housing 1 is tubular structure, and case material is chosen as epoxy glass fiber, has good mechanical performance and insulating properties, diameter of the housing is at 1.8 to 2.2m, single-unit body height is less than 3.5 m, meets shipping height restrictive condition, it is simple to whole Transporting；

2 inflatable bodies of described enclosure interior are pure SF₆Or SF₆/N₂Mixed gas, wherein, SF₆/N₂SF in mixed gas₆Content, between 15% to 95%, typically can be selected for low SF₆The mixed gas of content, has had higher dielectric strength the most, and this is remarkably improved the economical of device；In housing, inner gas pressure is between 0.2 MPa to 0.4 MPa, SF₆/N₂The inner gas pressure of mixed gas is slightly above SF₆Suitable dielectric strength can be obtained, inner gas pressure can be changed accordingly according to the height of output voltage；

Described ring type bucking electrode 3 is that coaxial circles is ring-like, it is placed in around every grade of impulse capacitor, material is chosen as aluminium, lighter weight, be easy to processing with fixing, ring type bucking electrode can effective uniform electric field, greatly reduce the appearance of internal field's concentration phenomenon, guaranteeing built-in electrical insulation performance, the concrete size of bucking electrode is determined by internal gas insulation surge voltage generating means size；

Described impulse capacitor 4 is square, and capacitor case is polyethylene, can prevent capacitor from edge flashing occurring when discharge and recharge, it is ensured that reliability during operation, and the nominal voltage of impulse capacitor is 100 ~ 150kV.Impulse capacitor can meet repeatedly the requirement of short circuit dischange, it is adaptable to surge voltage generating means, it is ensured that device safe and reliable；

Described ball gap gas switch 5 compare tradition sphere gap switch have affected by external condition little, the feature of good operating stability, compared to tradition ball gap regulation clearance distance to change the mechanical system of breakdown voltage, ball gap gas switch can control breakdown voltage by regulation air pressure, easily controllable and intense adjustment so that device synchronism significantly improves；

Described device pedestal 6 is used for supporting tower gas-insulated impulse voltage generator, and is connected with charging device；

Described charging device 7 can be the positive and negative bilateral charging of impulse capacitor, can use constant voltage or current constant mode charging, and be easy to regulate charging rate；

Described insulating barrier is both secured on insulation column, every grade of one layer of dividing plate, can be that impulse capacitor provides structure to support, and every grade of impulse capacitor is separated, gas-insulated surge voltage generating means is supported in enclosure interior by described insulation column, a diameter of 8cm ~ 15cm, has good machinery and insulating properties, described insulation column and insulating barrier and epoxy glass fiber can be used to make；

Described output bus 9 is voltage output end, as directly exporting or circuit can be provided to connect for hypomere, and aluminium elected as by bus material, and for cylinder so that electric fields uniform, output bus 9 is connected with last one set ring type bucking electrode；

Described abutted flange 10 concrete structure is as shown in Figure 2.

Fig. 2 is that the structure of abutted flange is intended to.11 is two intersegmental charging ports, and 12 is bus port, and 13 is check valve.

Wherein,

Described charging port 1 can be used for the two bilateral chargings of interpolar pulsed capacitance, and available small-sized disc insulator or insulating materials are drawn；

Described bus port 2 can be used for drawing bus, connects hypomere or directly exports, and same available disc insulator or insulating materials are drawn；

Described check valve 3 can be used for connection housing during two sections of docking so that two housings internal gas pressure is identical, it is ensured that abutted flange is not subject to gas pressure；

Abutted flange can be made with stainless steel or aluminium, it is ensured that mechanical strength.

Every section of Puffer-type surge voltage generating means is absolute construction, directly can use as generator, can also be as an integrally-built part, and multistage docking is used in combination, to produce higher voltage.

Wherein,

Except head and the tail two-piece housing, metal flange is all docked at remaining every piece housing top with afterbody；

Every piece housing top all has three and docks metallic conductor with afterbody, respectively surge voltage output and positive and negative charging end, and check valve is to keep multistage tank interior air pressure identical；

Docking metallic conductor relies on disc insulator or insulating materials to be supported in insulation shell；

Lowermost housing contains support base, and uppermost housing contains surge voltage output conductor, owing to for insulation shell, therefore can be connected with test product without outlet casing tube.

Described building block system Puffer-type surge voltage generating means has the advantages such as convenient transportation, compact conformation.Every piece housing can individually assemble and transport, and docks behind testing ground again.Also dependent on housing hop count needed for test voltage hierarchical selection, it is simple to regulation.Compared with traditional surge voltage generating means, in the utility model, every section of output voltage can be added to hypomere or directly output action is on test product, simple and convenient.It is gas in housing, significantly reduces installation weight, reduce device volume so that body inductance reduces, and can export steeper voltage waveform.

Although describing the disclosure in detail with reference to above-described embodiment, it should be appreciated that be not exhaustively or the utility model to be limited to disclosed form.Selecting and describing embodiment is to principle of the present utility model and actual application are more preferably described, it will be obvious to those skilled in the art that and can revise exemplary embodiments mentioned above under conditions of without departing substantially from the scope of the present disclosure and spirit.The scope of appended claim should be endowed the widest explanation, to comprise all such amendments and the 26S Proteasome Structure and Function of equivalent.

Claims (5)

1. a building block system Puffer-type surge voltage generating means, it is characterised in that include docking inflatable insulation shell, insulated impulse voltage generator in the tower gas of enclosure interior by high-strength insulating supports support, wherein,

Described tower gas insulation impulse voltage generator includes:

The standard bilateral charging impulse voltage generator loop being made up of many group pulses capacitor, phase inductive charging and isolation resistance, ball gap gas switch；

Multiple ring type bucking electrodes；

Wherein,

Described many group pulses capacitor is individually fixed on multiple high-strength insulating plate, and connecting between every group capacitor has ball gap gas switch；

Multiple insulation boards are the most parallel to be fixed on four high-strength insulating pillars, and layer and interlayer rely on the tubular supporting piece being placed on insulation column to support；

Ring type bucking electrode is positioned at around every grade of impulse capacitor, plays the effect of uniform electric field；

Afterbody ring type bucking electrode is connected with output conductor.

2. according to the building block system Puffer-type surge voltage generating means described in claim 1, it is characterised in that every impulse voltage generator within piece housing is all placed in inflation housing with gas-insulated form.

3., according to the building block system Puffer-type surge voltage generating means according to any one of claim 1-2, it is characterised in that inflation housing is tubular structure, and material is insulating materials, every section of height is less than 3.5 meters.

4. according to the building block system Puffer-type surge voltage generating means described in claim 1, it is characterised in that insulation board and insulation column use epoxy glass fiber, it is desirable to both had supporting role, and met insulating requirements simultaneously.

5. according to the building block system Puffer-type surge voltage generating means described in claim 1 or 2 or 4, it is characterised in that every section of Puffer-type surge voltage generating means is absolute construction, can dock with other sections, wherein,

Except head and the tail two-piece housing, metal flange is all docked at remaining every piece housing top with afterbody；

Every piece housing top all has three and docks metallic conductor with afterbody, respectively surge voltage output and positive and negative charging end；

Docking metallic conductor relies on disc insulator or insulating materials to support；

Lowermost housing contains support base, and uppermost housing contains surge voltage output conductor, it is not necessary to outlet casing tube can be connected with test product.