CN2369330Y - Fully sealed discharge coil - Google Patents
Fully sealed discharge coil Download PDFInfo
- Publication number
- CN2369330Y CN2369330Y CN 99222574 CN99222574U CN2369330Y CN 2369330 Y CN2369330 Y CN 2369330Y CN 99222574 CN99222574 CN 99222574 CN 99222574 U CN99222574 U CN 99222574U CN 2369330 Y CN2369330 Y CN 2369330Y
- Authority
- CN
- China
- Prior art keywords
- casing
- high voltage
- insulator
- tower tray
- ceram
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fully sealed discharge coil. The utility model comprises a box body, a coil device in the box body, a ceram sleeve with high voltage, and a ceram sleeve with low voltage, wherein, the ceram sleeve with high voltage and the ceram sleeve with low voltage are arranged on a box cover, and the insulating oil is filled in the box body. The utility model is characterized in that the bottom of the box body is provided with a corrugated expander; the structure of the ceram sleeve with high voltage is improved, and epoxy resin is filled in the ceram sleeve with high voltage and the ceram sleeve with low voltage. The utility model is fully sealed, and the corrugated expander is used for balancing the change of the heat expansion and cold contraction of the insulating oil in the box body with environment temperature. The ceram sleeve with high voltage is not provided with an oil storing cabinet. The utility model has the advantages of low height, light weight, difficult damage, and reduced entire height. In addition, the epoxy resin which is filled in the ceram sleeve with high voltage and the ceram sleeve with low voltage has good insulating performance, and therefore, the ceram sleeve with high voltage, the ceram sleeve with low voltage, and the box body are of no leakage.
Description
The utility model relates to the discharge coil device in the power transmission and transformation system equipment, be with power transmission and transformation system in Shunt Capacitor Unit or the discharge coil of filtering capacitor group use in parallel.When this discharge coil cuts off the power supply when the capacitor group, the electric field energy of capacitor group discharging safely and fast, safety and attendant's safety when guaranteeing capacitor group reclosing.
Discharge coil in the power transmission and transformation system equipment includes casing, is installed in the interior coil device of casing, is installed in high voltage porcelain bushing, low pressure insulator formation on the casing upper box lid, be provided with the conduction flexible cord in high voltage porcelain bushing, the low pressure insulator, in casing, annotate transformer insulation oil is housed, high voltage porcelain bushing, low pressure insulator are inserted on the case lid, and fix with the paw on the case lid.In its casing of discharge coil with tap 1 coil device is not arranged, there are 2 high voltage porcelain bushings, 2 low pressure insulators to constitute on the casing upper box lid, the discharge coil of band tap has in its casing 3 high voltage porcelain bushing pipes is arranged on 2 coil devices, the casing upper box lid, 4 low pressure porcelain bushings constitute.
Its casing of discharge coil of 6-10KV is the open casing that is provided with the oiling piston hole at present, in casing, be marked with the insulating oil of nearly trunkful, naked oil in high voltage porcelain bushing, the low pressure insulator inner chamber, oiling piston hole on the casing is opened in use, make the inside and outside ventilation of casing, with the insulating oil in the balance box with the ambient temperature variation of expanding with heat and contract with cold, because casing is packing less, transformer insulation oil in the casing directly contacts with air, the easy oxidation by air of insulating oil is so need the interior transformer insulation oil of periodic replacement case.
It is equipped with an oil-expansion vessel at the upper end of the high voltage porcelain bushing first line of a couplet discharge coil of 35KV, it is also referred to as conservator, casing is a sealed type, on oil-expansion vessel, offer the oiling valve opening, insulating oil is filled to the high height over half of oil-expansion vessel, interior and the high voltage porcelain bushing of casing, fill with insulating oil in the low pressure insulator inner chamber, because the height of high voltage porcelain bushing was just higher originally, adding oil-expansion vessel just makes its whole height higher, and make the weight on high voltage porcelain bushing top very heavy, transportation mesohigh insulator bottom fractures easily using particularly like this, and the high voltage porcelain bushing lower end connects greatly stressed and not steady with casing, sealed attachment between high voltage porcelain bushing lower end and casing easily is damaged, and is easy to produce seepage oil, needs often maintenance.So prior art is unsatisfactory.
The purpose of this utility model provides a kind of good insulation preformance, and is simple in structure, the all-sealed discharge coil of ne-leakage.
The technical solution of the utility model is to include casing, be installed in coil device in the casing, be installed in high voltage porcelain bushing, low pressure insulator on the casing upper box lid, annotate in casing and insulating oil is housed constitutes, it is characterized in that being provided with corrugated expander, on box cover, offer the oiling valve opening at the bottom and the casing communications and liaison of casing; In high voltage porcelain bushing and low pressure insulator, particularly in the high voltage porcelain bushing metal conducting bar is set, and in high voltage porcelain bushing and low pressure insulator, is cast with epoxy resin; The high and low pressure insulator cooperates with the casing upper box lid has epoxy sealing to constitute between conjunction plane.
The utility model seals fully, by insulating oil in the corrugated expander balance box with the ambient temperature variation of expanding with heat and contract with cold, there is not oil-expansion vessel on the high voltage porcelain bushing, the high voltage porcelain bushing height is low, weight is lighter, not fragile, and dwindled whole height, packing ring epoxy resins good insulating, insulator and casing ne-leakage in the insulator.
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 1, the structural representation of promptly high gland 3.
Fig. 4 is another example structure schematic diagram of the utility model.
Fig. 5 is that Fig. 4 is a vertical view.
Fig. 6 is the B-B cutaway view of Fig. 4, another example structure schematic diagram of promptly high gland 3.
Fig. 7 is Fig. 1,4 C-C cutaway view.
Below in conjunction with description of drawings the utility model.
The utility model includes casing 1, be installed in 1-2 coil device 2 in the casing 1, be installed in 2-3 high voltage porcelain bushing 3 on casing 1 upper box lid 10,2-4 low pressure insulator 4, in casing 1, annotate the transformer insulation oil formation is housed, high voltage porcelain bushing 3, low pressure insulator 4 is inserted on the case lid 10, and be fixedly connected with paw 11, it is characterized in that being provided with corrugated expander 5 at the bottom and casing 1 communications and liaison of casing 1, on casing 1 loam cake 10, offer fuel feeding valve 6, cast is full of epoxy resin in high voltage porcelain bushing 3 and the low pressure insulator 4, and high voltage porcelain bushing 3 and low pressure insulator 4 cooperate with casing 1 upper box lid 10 epoxy sealing between conjunction plane.
The utility model does not have in its casing 1 of discharge coil with tap 3,2 low pressure insulators 4 of 2 high voltage porcelain bushings is arranged on 1 coil device 2, the casing upper box lid 10; Have in its casing 1 of discharge coil of band tap 3,4 low pressure porcelain bushings 4 of 3 high voltage porcelain bushing pipes are arranged on 2 coil devices 2, the casing upper box lid.
Shown in accompanying drawing 3, the utility model high voltage porcelain bushing 3 is by insulator 30, conducting rod 31, and in insulator 30 inner chambers, be cast with epoxy resin 39 and constitute, the upper end of conducting rod 31 is inserted on the upper end hole of insulator 30 and by the nut on the conducting rod 31 32,32 ' cooperation and is fixedly connected, and conducting rod 3 bottoms are fixing by the epoxy resin of pouring into a mould in insulator 30 inner chambers 39 in insulator 30 inner chambers.This high voltage porcelain bushing 3 is applicable to the discharge coil application of 6-10KV, is cast with epoxy resin 39 in this high voltage porcelain bushing 3, does not have insulating oil in its high voltage porcelain bushing of discharge coil of existing relatively 6-10KV, can improve the withstand voltage properties of high voltage porcelain bushing 3.
Shown in accompanying drawing 6, the utility model high voltage porcelain bushing 3 is by insulator 30, conducting rod 31, last thread bush tower tray 35, insulated tube 36a, 36b, 36c, following tower tray 37, and in insulator 30 inner chambers, be cast with epoxy resin 39 and constitute, insulated tube 36a, 36b, the surface of 36c is covered with one deck aluminium foil, the thread bush 35 of last thread bush tower tray 35 ' part connects with the upper end hole threaded engagement of insulator 30 and is cooperated fixing by nut 33, the upper end of conducting rod 31 is inserted in the endoporus of thread bush tower tray 35 and by the nut 32 on the conducting rod 31,32 ' cooperate to be fixedly connected, following tower tray 37 is installed on the bottom of conducting rod 31 by its centre bore, insulated tube 36a, 36b, 36c cooperates with last thread bush tower tray 35 and following tower tray 37 and is installed in 37 of thread bush tower tray 35 and following tower trays, following tower tray 37 and conducting rod 31 are by nut 34 positioning and fixing on the conducting rod 31, at insulator 30 inner chambers and insulated tube 36a, 36b, be cast with epoxy resin 39 in the 36c inner chamber.This high voltage porcelain bushing 3 is applicable to the discharge coil application of 35KV, the surface of insulated tube 36a, 36b, 36c is covered with one deck aluminium foil itself and conducting rod 31 and forms electric capacity, make conducting rod 31 and insulator 30 Electric Field Distribution even, be difficult for producing partial discharge, can guarantee to substitute the withstand voltage properties that insulating oil fills high voltage porcelain bushing 3 inner high voltage insulators 3, and improve the resistance to pressure of high voltage porcelain bushing with epoxy resin.
Shown in accompanying drawing 7, the fuel feeding valve of offering on casing 1 loam cake 10 6 is made of valve seat 61, screw thread valve plug 62, rubber gasket 63.
The utility model case lid 10 connects with casing 1 welded closure.
Claims (4)
1, all-sealed discharge coil, include casing (1), be installed in 1-2 the coil device (2) in the casing (1), be installed in 2-3 the high voltage porcelain bushing (3) on casing (1) upper box lid (10), 2-4 low pressure insulator (4), in casing (1), annotate the transformer insulation oil formation is housed, high voltage porcelain bushing (3), low pressure insulator (4) is inserted on the case lid (10), be fixedly connected with paw (11), it is characterized in that being provided with corrugated expander (5) at the bottom and casing (1) communications and liaison of casing (1), offer fuel feeding valve (6) at casing (1) loam cake (10), cast is full of epoxy resin in high voltage porcelain bushing (3) and the low pressure insulator (4), and high voltage porcelain bushing (3) and low pressure insulator (4) cooperate with casing (1) upper box lid (10) epoxy sealing between conjunction plane.
2, all-sealed discharge coil according to claim 1, it is characterized in that high voltage porcelain bushing (3) is by insulator (30), conducting rod (31), be cast with epoxy resin (39) and constitute in insulator (30) inner chamber, the upper end of conducting rod (31) is inserted on the upper end hole of insulator (30) and by the nut on the conducting rod (31) (32,32 ') cooperation and is fixedly connected.
3, all-sealed discharge coil according to claim 1, it is characterized in that high voltage porcelain bushing (3) is by insulator (30), conducting rod (31), last thread bush tower tray (35), insulated tube (36a, 36b, 36c), following tower tray (37), being cast with epoxy resin (39) in insulator (30) inner chamber constitutes, insulated tube (36a, 36b, surface 36c) is covered with one deck aluminium foil, thread bush (35 ') part of last thread bush tower tray (35) connects with the upper end hole threaded engagement of insulator (30) and is cooperated fixing by nut (33), the upper end of conducting rod (31) is inserted in the endoporus of thread bush tower tray (35) and by the nut (32 on the conducting rod (31), 32 ') cooperate and to be fixedly connected, following tower tray (37) is installed on the bottom of conducting rod (31) by its centre bore, insulated tube (36a, 36b, 36c) cooperate with last thread bush tower tray (35) and following tower tray (37) and be installed between thread bush tower tray (35) and following tower tray (37), following tower tray (37) and conducting rod (31) are by nut (34) positioning and fixing on the conducting rod (31), at insulator (30) inner chamber and insulated tube (36a, 36b, 36c) be cast with epoxy resin (39) in the inner chamber.
4,, it is characterized in that the fuel feeding valve of offering on casing (1) loam cake (10) (6) is made of valve seat (61), screw thread valve plug (62), rubber gasket (63) according to claim 1 or 2 or 3 described all-sealed discharge coils; Case lid (10) connects with casing (1) welded closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222574 CN2369330Y (en) | 1999-01-18 | 1999-01-18 | Fully sealed discharge coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99222574 CN2369330Y (en) | 1999-01-18 | 1999-01-18 | Fully sealed discharge coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2369330Y true CN2369330Y (en) | 2000-03-15 |
Family
ID=34012940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99222574 Expired - Fee Related CN2369330Y (en) | 1999-01-18 | 1999-01-18 | Fully sealed discharge coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2369330Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682948A (en) * | 2012-06-06 | 2012-09-19 | 青岛市恒顺电气股份有限公司 | Oil-immersed discharge coil and oil filling method therefor |
| CN104242003A (en) * | 2014-10-11 | 2014-12-24 | 国家电网公司 | Discharging tool for bulk capacitors |
| CN113589123A (en) * | 2021-06-18 | 2021-11-02 | 中国电力科学研究院有限公司 | Test device for fault simulation of extra-high voltage transformer |
-
1999
- 1999-01-18 CN CN 99222574 patent/CN2369330Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102682948A (en) * | 2012-06-06 | 2012-09-19 | 青岛市恒顺电气股份有限公司 | Oil-immersed discharge coil and oil filling method therefor |
| CN104242003A (en) * | 2014-10-11 | 2014-12-24 | 国家电网公司 | Discharging tool for bulk capacitors |
| CN113589123A (en) * | 2021-06-18 | 2021-11-02 | 中国电力科学研究院有限公司 | Test device for fault simulation of extra-high voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Yongjian Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |