CN201781192U - Electric energy metering cabinet - Google Patents
Electric energy metering cabinet Download PDFInfo
- Publication number
- CN201781192U CN201781192U CN 201020282289 CN201020282289U CN201781192U CN 201781192 U CN201781192 U CN 201781192U CN 201020282289 CN201020282289 CN 201020282289 CN 201020282289 U CN201020282289 U CN 201020282289U CN 201781192 U CN201781192 U CN 201781192U
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- China
- Prior art keywords
- current transformer
- transformer
- cabinet
- bus
- electric energy
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- 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 - Lifetime
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Abstract
The utility model discloses an electric energy metering cabinet. A bus, a current transformer and a voltage transformer in each phase of the electric energy metering cabinet are respectively sealed in epoxy resin insulating layers formed by means of molding, the outer surface of each epoxy resin insulating layer is provided with a semi-conductive material layer, the semi-conductive layers are connected mutually and conductively connected with a cabinet body, the epoxy resin insulating layer of each bus is connected with the epoxy resin insulating layer of the corresponding current transformer by means of plugging a tapered plug into a tapered hole, the epoxy resin insulating layer of each current transformer is connected with the epoxy resin insulating layer of the corresponding voltage transformer by means of plugging a tapered plug into a tapered hole, and an insulating elastic seal gasket is mounted between each tapered plug and the corresponding tapered hole. Compared with the prior art, the electric energy metering cabinet has the advantages of no arcing, small volume, high environmental adaptability, convenience in installation and maintenance, safety and reliability in operation and capability of meeting the requirement of environmental protection.
Description
Technical field
The utility model relates to the manufacturing technology field of power equipment, particularly a kind of equipment that is used to measure the high-pressure delivery electric energy.
Background technology
In the existing high-voltage metering cubicle, having a kind of mainly is by containing the hyperbaric chamber, and the cabinet of secondary component chamber and three-phase are made of the circuit that current transformer and voltage transformer and high voltage bus connect into.This high-tension electric energy metrical, its bus, and bus and current transformer, current transformer all is to be exposed to airborne gas barrier insulation with being connected of voltage transformer, this insulation mode dielectric strength is not high, the insulating properties performance is good inadequately, in order to keep enough creepage distances, often need big phase spacing and big electric conductor and cabinet distance, this structure causes the volume of cabinet very big, it is big not only to take up room, and transportation is installed inconvenient.
Summary of the invention
The purpose of this utility model provides a kind of electric energy metrical cabinet, and it is relatively poor mainly to solve existing electric energy metrical cabinet insulation property, bulky problem.
In order to address the above problem, the technical solution adopted in the utility model is: this electric energy metrical cabinet also comprises and contains the hyperbaric chamber, the cabinet of secondary component chamber, in the hyperbaric chamber of this cabinet, be provided with the circuit pack that three-phase is connected into by current transformer and voltage transformer and high voltage bus respectively, the bus of described each phase, current transformer and voltage transformer are enclosed in the epoxy resins insulation layer of pressure injection formation respectively, and are provided with the semiconductive material layer at the outer surface of these epoxy resins insulation layers; Between the epoxy resins insulation layer of described bus and the epoxy resins insulation layer of described current transformer, being connected between the epoxy resins insulation layer of described current transformer and the epoxy resins insulation layer of described voltage transformer all is that cone-shaped plug inserts the connection in the bellmouth, and the insulation elastic sealing gasket is housed between described cone-shaped plug and bellmouth; The semiconductive material layer of described bus, the semiconductive material layer of described current transformer and the semiconductive material layer of described voltage transformer all are connected with described cabinet, and the resistance value R that these semiconductive material layers are the every cm distance of outer surface is: 500 ohm≤R≤10000 ohm stratiform thing.
In the technique scheme, technical scheme can be more specifically: described voltage in three phases instrument transformer is installed in one by on track and the sliding machine that described cabinet is connected; The bus of described every phase is installed on the current transformer top of this phase; The lower port of this current transformer is connected with the upper port of this phase voltage instrument transformer.
Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1. good insulation preformance, heat radiation is easily: once parts of the present utility model are the module that epoxy resin pressure injection independently forms, once the connection between the component models make electrification in high voltage partly fully and air insulation all by conical seal ring 4 sealing.Electrification in high voltage partly with the direct pressure injection of epoxy resin together, be more conducive to distributing of heat.
2. environmental protection: need not sulfur hexafluoride gas in the utility model, do not have the hidden danger of leakage, the accident of gas tank blast can not take place, can not impact, can not aggravate greenhouse effect to environment.
3. there is not arcing: parts of the present utility model, all adopt the epoxy resin pressure injection to form, the epoxy resins insulation laminar surface is coated with the semiconductive material layer, semiconductive material layer resistance is between 500-10000 ohm, intermodule semiconductive material layer mutual conduction, reliably be connected and good earth with the switch cubicle housing at last, effectively eliminated the generation probability of alternate arcing.
4. surface induction voltage is very low, safer: parts of the present utility model, all adopt the epoxy resin pressure injection to form, the epoxy resins insulation laminar surface is coated with the semiconductive material layer, semiconductive material layer resistance is between 500-10000 ohm, intermodule semiconductive material layer mutual conduction reliably is connected and good earth with the switch cubicle housing at last, and effectively the surface induction magnitude of voltage of control ring epoxy resins insulating barrier is in the safety value scope.
5. environmental suitability is strong, and the operation safety and reliability: parts of the present utility model all adopt solid insulation, and the connection between all modules makes the partly complete and air insulation of electrification in high voltage one time all by conical seal ring 4 sealings; Electrification in high voltage partly is not subjected to the influence of environment, improves fail safe, reliability and the environmental suitability of switchgear operation.
6. simple in structure, volume is little, and is non-maintaining: parts of the present utility model adopt modularized design, solid insulation, and structure is very simple, and the switchgear volume is equivalent to 1/3rd of general switchgear, the module Maintenance free.
Description of drawings
Fig. 1 is the utility model internal structure front view;
Fig. 2 is the cutaway view at A-A place among Fig. 1;
Fig. 3 is the partial enlarged view at B place among Fig. 1;
Fig. 4 is the partial enlarged view at C place among Fig. 1.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
This electric energy metrical cabinet shown in Figure 1 has a branch to be separated with the cabinet of hyperbaric chamber 8, secondary component chamber 12 and ammeter chamber 13, in the hyperbaric chamber 8 of cabinet, has the primary conductive part that three-phase is in turn connected into by solid insulation bus 1, solid insulation current transformer 4 and solid insulation voltage transformer 9 respectively, voltage in three phases instrument transformer 9 all is contained on the sliding machine 10, sliding machine 10 is contained on the track 11 of fixedlying connected with cabinet, changes voltage transformer 9 with convenient the dress in narrow cabinet space.
The solid insulation bus 1 of each phase, the syndeton of solid insulation current transformer 4 and solid insulation voltage transformer 9 is: the bus electric conductor and the epoxy resins insulation layer of solid insulation bus 1 lower end are set to the plug shape, the cone-shaped plug portion of its epoxy resins insulation layer inserts in the tapered spigot of solid insulation current transformer 4, the conducting ring assembly 3 that the bus electric conductor touches son by band conduction inserts in the input electric conductor interface of solid insulation current transformers 4, and taper electrically insulating silicone rubber sealing gasket 2 is equipped with in being connected between the epoxy resins insulation layer of the epoxy resins insulation layer of solid insulation bus 1 and solid insulation current transformer 4 on the taper hole; The output of current transformer 4 lower ends is made the plug shape, the conducting ring assembly 6 that the current transformer electric conductor of this intercalation part touches son by the band conduction inserts in the input port electric conductor interface of solid insulation voltage transformer 9 upper ends, taper electrically insulating silicone rubber sealing gasket 5 is equipped with in being connected between the epoxy resins insulation layer of the input electric conductor of solid insulation voltage transformer 9 upper ends outside and the epoxy resins insulation layer of current transformer 4 on the taper hole, the input port electric conductor of solid insulation voltage transformer 9 upper ends passes through spring 7 and is connected with the input of solid insulation voltage transformer 9.Semiconductive material layer 1.1,4.1,9.1 on solid insulation bus 1, solid insulation current transformer 4 and the solid insulation voltage transformer 9 interconnects the back and is connected with the cabinet conduction.
In the secondary component chamber 12 is control, protection and the indication components and parts of switchgear, and special-purpose electric energy meter is housed in the ammeter chamber 13.
Shown in Figure 2, the combination that is connected of the solid insulation bus 1 of this electric energy metrical cabinet, solid insulation current transformer 4 and solid insulation voltage transformer 9 has three covers, every suit is corresponding to a circuitry phase, the solid insulation bus 1 of each phase, solid insulation current transformer 4 and solid insulation voltage transformer 9 are modular construction, and be separate between every phase.
Claims (3)
1. electric energy metrical cabinet, include the hyperbaric chamber, the cabinet of secondary component chamber, in the hyperbaric chamber of this cabinet, be provided with the circuit pack that three-phase is connected into by current transformer and voltage transformer and high voltage bus respectively, it is characterized in that: the bus of described each phase, current transformer and voltage transformer are enclosed in the epoxy resins insulation layer of pressure injection formation respectively, and are provided with the semiconductive material layer at the outer surface of these epoxy resins insulation layers; Between the epoxy resins insulation layer of described bus and the epoxy resins insulation layer of described current transformer, being connected between the epoxy resins insulation layer of described current transformer and the epoxy resins insulation layer of described voltage transformer all is that cone-shaped plug inserts the connection in the bellmouth, and the insulation elastic sealing gasket is housed between described cone-shaped plug and bellmouth; The semiconductive material layer of described bus, the semiconductive material layer of described current transformer and the semiconductive material layer of described voltage transformer all are connected with described cabinet, and the resistance value R that these semiconductive material layers are the every cm distance of outer surface is: 500 ohm≤R≤10000 ohm stratiform thing.
2. a kind of electric energy metrical cabinet according to claim 1 is characterized in that: described voltage in three phases instrument transformer is installed in one by on track and the sliding machine that described cabinet is connected.
3. a kind of electric energy metrical cabinet according to claim 1 and 2 is characterized in that: the bus of described every phase is installed on the current transformer top of this phase; The lower port of this current transformer is connected with the upper port of this phase voltage instrument transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020282289 CN201781192U (en) | 2010-08-05 | 2010-08-05 | Electric energy metering cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020282289 CN201781192U (en) | 2010-08-05 | 2010-08-05 | Electric energy metering cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781192U true CN201781192U (en) | 2011-03-30 |
Family
ID=43794395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020282289 Expired - Lifetime CN201781192U (en) | 2010-08-05 | 2010-08-05 | Electric energy metering cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781192U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036169A (en) * | 2012-11-30 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation ring net metering cabinet |
| CN103680897A (en) * | 2013-11-26 | 2014-03-26 | 江苏科兴电器有限公司 | Current transformer for solid-insulated ring main unit |
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN104253391A (en) * | 2014-09-30 | 2014-12-31 | 扬州新概念电气有限公司 | Compact solid insulation measuring cabinet |
| CN105742982A (en) * | 2016-04-19 | 2016-07-06 | 正泰电气股份有限公司 | All-insulation measuring cabinet |
| CN108123392A (en) * | 2017-11-20 | 2018-06-05 | 北京双杰电气股份有限公司 | A kind of solid insulation metering cabinet |
-
2010
- 2010-08-05 CN CN 201020282289 patent/CN201781192U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036169A (en) * | 2012-11-30 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation ring net metering cabinet |
| CN103680897A (en) * | 2013-11-26 | 2014-03-26 | 江苏科兴电器有限公司 | Current transformer for solid-insulated ring main unit |
| CN103680897B (en) * | 2013-11-26 | 2016-08-31 | 江苏科兴电器有限公司 | A kind of solid insulation ring main unit Current Transformer |
| CN103941051A (en) * | 2014-04-08 | 2014-07-23 | 武汉国测恒通智能仪器有限公司 | Charged pluggable high voltage electric energy metering device and method |
| CN104253391A (en) * | 2014-09-30 | 2014-12-31 | 扬州新概念电气有限公司 | Compact solid insulation measuring cabinet |
| CN105742982A (en) * | 2016-04-19 | 2016-07-06 | 正泰电气股份有限公司 | All-insulation measuring cabinet |
| CN108123392A (en) * | 2017-11-20 | 2018-06-05 | 北京双杰电气股份有限公司 | A kind of solid insulation metering cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |