CN210401517U - High-voltage integrated metering device on full-insulated column - Google Patents

High-voltage integrated metering device on full-insulated column Download PDF

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Publication number
CN210401517U
CN210401517U CN201920466128.5U CN201920466128U CN210401517U CN 210401517 U CN210401517 U CN 210401517U CN 201920466128 U CN201920466128 U CN 201920466128U CN 210401517 U CN210401517 U CN 210401517U
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China
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voltage
insulating protective
protective cap
metering
looks
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Active
Application number
CN201920466128.5U
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Chinese (zh)
Inventor
胡顺
杜世昌
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Hangzhou Lansai Electronic Technology Co ltd
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Hangzhou Lansai Electronic Technology Co ltd
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Abstract

The utility model belongs to the technical field of power distribution, in particular to a high-voltage integrated metering device on a fully-insulated column, which comprises a pair of supporting insulators and an insulating protective shell arranged on the supporting insulators, wherein a high-voltage equipotential metering unit, a fully-insulated current sensor and a fully-insulated voltage sensor are sequentially arranged at two ends of the inside of the insulating protective shell respectively; the left end on insulating protective housing go up the edge be equipped with A looks insulating protective cap, the right-hand member is equipped with C looks insulating protective cap, the centre is equipped with B looks insulating protective cap, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap in be equipped with voltage transformer binding post, voltage transformer binding post with all-insulation voltage sensor connect, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap and voltage transformer binding post interference fit. On the basis of high-voltage metering performance of miniaturization, integration and electricity larceny prevention, the external insulation protection level of the high-voltage metering device is greatly improved.

Description

High-voltage integrated metering device on full-insulated column
Technical Field
The utility model belongs to the technical field of the distribution, in particular to high-voltage integration metering device on full insulating post.
Background
The switch equipment and the metering equipment of the distribution network overhead line exist in a large quantity, the insulation level requirement of the distribution network overhead line is obviously improved, an insulated cable is basically realized, compared with the traditional overhead bare conductor, the ground fault accident is greatly reduced, and the power utilization safety is also improved. High-voltage switches and high-voltage metering devices are developing towards the technical direction of intellectualization, miniaturization and full insulation.
The current distribution network overhead line high-voltage metering device mainly comprises two types, one type is that a traditional high-voltage combined transformer is matched with a 100V5A three-phase electric energy meter to realize metering, the other type is a new metering device which is a high-voltage electric energy meter, an electronic voltage and current transformer and an electric energy meter part are structurally integrated, a high-voltage integrated structural form does not have a secondary metering loop, and the high-voltage integrated structural form has an integral metering accuracy grade.
Compared with a high-voltage electric energy meter, the traditional high-voltage metering device is more mature in application, and the high-voltage electric energy meter has the special advantage of miniaturization and electricity larceny prevention. The traditional structures of the two types of devices have remarkable high-voltage three-phase metal potential points. Due to the fact that the protection problem of the high-voltage electrode needs to be considered in the application of the distribution network overhead line, abnormal and sudden ground short circuit faults caused by the fact that foreign matters such as branches and leaves on the line contact the high-voltage electrode need to be avoided. If the traditional high-voltage metering device and the high-voltage electric energy meter are required to be protected in a full-insulation mode, an insulation cover is added on a voltage terminal and a current terminal.
The area of a high-voltage electrode of a traditional high-voltage metering device and a high-voltage electric energy meter is large, and the insulation protection is enhanced by adding an insulation cover. However, the insulating cover is an accessory to be attached later, and it is difficult to manage the insulating cover to maintain the same service life as the high-voltage metering device body. Meanwhile, the insulating cover and the high-voltage electrode are not tightly wrapped, only the basic insulating and shielding effect is achieved, water vapor and dust easily enter the insulating cover, and the actual protection capability of the insulating cover is rapidly reduced. Because the high-voltage electrode in the traditional technical scheme can not achieve the strict packaging level of full insulation, the insulation level is easy to drop or short-time breakdown short-circuit fault occurs.
Therefore, there is a need for a high-voltage integrated metering device with an all-insulation design, which has an excellent insulation protection level on the basis of high-voltage metering performance of miniaturization, integration and electricity stealing prevention.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a miniaturized, integration, high insulating protection horizontally high pressure metering device.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the all-insulated on-post high-voltage integrated metering device comprises a pair of supporting insulators and an insulating protective shell arranged on the supporting insulators, wherein a high-voltage equipotential metering unit, an all-insulated current sensor and an all-insulated voltage sensor are sequentially and respectively arranged at two ends in the insulating protective shell; the left end on insulating protective housing go up the edge be equipped with A looks insulating protective cap, the right-hand member is equipped with C looks insulating protective cap, the centre is equipped with B looks insulating protective cap, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap in be equipped with voltage transformer binding post, voltage transformer binding post with all-insulation voltage sensor connect, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap and voltage transformer binding post interference fit.
Preferably, high voltage equipotential metering unit include a sealed metal shielding cover and its inside high voltage equipotential metering circuit board. The main functions of the device are to realize sampling, electric energy metering and data communication of voltage and current signals on high voltage equipotential, and the metal shielding cover is used for voltage-sharing protection of high voltage equipotential.
Preferably, the fully insulated current sensor of the present invention is a low power current coil LPCT and an outdoor epoxy resin or silicon rubber casing. The fully insulated current sensor is a low-power current coil LPCT, the secondary output and the primary loop have the same potential, the internal insulation requirement of the mutual inductor does not need to be considered, the shell of the fully insulated current sensor is made of outdoor epoxy resin or silicon rubber, and the external insulation protection level is ensured
Preferably, all insulation voltage sensor be resistance divider, capacitive voltage divider or resistance-capacitance voltage divider.
Preferably, the structure of A looks insulating helmet, B looks insulating helmet, C looks insulating helmet be the insulating cap body and insulating wire induction pipe body structure. Ensure the tightness without creepage passage.
Preferably, insulating protective housing adopt outdoor epoxy or silicon rubber materials integrated into one piece's tubular structure, and the periphery is equipped with the tower skirt.
The utility model discloses the technique has realized high-pressure integrated metering device on the full insulated column, has miniaturized, integration, on the anti-electricity-theft high-pressure measurement performance basis, has promoted high-pressure metering device's external insulation protection level greatly. The high-voltage electric appliance full-insulation metering device is suitable for the full-insulation use requirement of a distribution network intelligent development requirement, is different from the traditional insulation shielding cover design, has excellent insulation durability, and can reach IP67 level in waterproof sealing.
Drawings
Fig. 1 is a schematic structural view of the fully insulated high-voltage integrated metering device on the column of the present invention.
Fig. 2 is a schematic structural view of the middle insulation protective cap of the present invention.
Detailed Description
The utility model is specifically explained by the following figures in the specification:
as shown in fig. 1 and 2, the all-insulated integrated high-voltage on-post metering device includes a pair of supporting insulators 1, and an insulating protective housing 2 disposed on the supporting insulators 1, wherein two ends of the inside of the insulating protective housing 2 are sequentially and respectively provided with a high-voltage equipotential metering unit 3, an all-insulated current sensor 4, and an all-insulated voltage sensor 5; insulating protective housing 2 go up the left end on edge and be equipped with A looks insulating protective cap 6, the right-hand member is equipped with C looks insulating protective cap 8, the centre is equipped with B looks insulating protective cap 7, A looks insulating protective cap 6, B looks insulating protective cap 7, C looks insulating protective cap 8 in be equipped with voltage transformer binding post 9, voltage transformer binding post 9 with all-insulation voltage sensor 5 connect, A looks insulating protective cap 6, B looks insulating protective cap 7, C looks insulating protective cap 8 and voltage transformer binding post 9 interference fit.
Preferably, the high voltage equipotential measuring unit 3 includes a sealing metal shielding cover and its internal high voltage equipotential measuring circuit board. The main functions of the device are to realize sampling, electric energy metering and data communication of voltage and current signals on high voltage equipotential, and the metal shielding cover is used for voltage-sharing protection of high voltage equipotential.
Preferably, the fully insulated current sensor 4 of the present invention is a low power current coil LPCT and an outdoor epoxy or silicone rubber casing. The fully insulated current sensor is a low-power current coil LPCT, the secondary output and the primary loop have the same potential, the internal insulation requirement of the mutual inductor does not need to be considered, the shell of the fully insulated current sensor is made of outdoor epoxy resin or silicon rubber, and the external insulation protection level is ensured
Preferably, the fully insulated voltage sensor 5 of the present invention is a resistor voltage divider, a capacitor voltage divider or a resistor-capacitor voltage divider.
Preferably, the structure of the phase a insulation protective cap 6, the phase B insulation protective cap 7 and the phase C insulation protective cap 8 is an insulation cap body 101 and an insulation lead-in pipe 102. Ensure the tightness without creepage passage.
Preferably, insulating protective housing adopt outdoor epoxy or silicon rubber materials integrated into one piece's tubular structure, and the periphery is equipped with the tower skirt.
The utility model discloses the technique has realized high-pressure integrated metering device on the full insulated column, has miniaturized, integration, on the anti-electricity-theft high-pressure measurement performance basis, has promoted high-pressure metering device's external insulation protection level greatly. The high-voltage electric appliance full-insulation metering device is suitable for the full-insulation use requirement of a distribution network intelligent development requirement, is different from the traditional insulation shielding cover design, has excellent insulation durability, and can reach IP67 level in waterproof sealing.

Claims (6)

1. The all-insulated on-column high-voltage integrated metering device is characterized by comprising a pair of supporting insulators and an insulating protective shell arranged on the supporting insulators, wherein a high-voltage equipotential metering unit, an all-insulated current sensor and an all-insulated voltage sensor are sequentially arranged at two ends in the insulating protective shell; the left end on insulating protective housing go up the edge be equipped with A looks insulating protective cap, the right-hand member is equipped with C looks insulating protective cap, the centre is equipped with B looks insulating protective cap, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap in be equipped with voltage transformer binding post, voltage transformer binding post with all-insulation voltage sensor connect, A looks insulating protective cap, B looks insulating protective cap, C looks insulating protective cap and voltage transformer binding post interference fit.
2. The fully insulated integrated high voltage on-post metering device according to claim 1, wherein said high voltage equipotential metering unit comprises a sealed metal shield and a high voltage equipotential metering circuit board therein.
3. The fully insulated integrated high voltage on-post metering device of claim 1, wherein the fully insulated current sensor is a low power current coil LPCT and outdoor epoxy or silicone rubber housing.
4. The fully insulated integrated on-post high voltage metering device of claim 1, wherein the fully insulated voltage sensor is a resistor divider, a capacitor divider, or a resistor-capacitor divider.
5. The integrated metering device of claim 1, wherein the insulation protective caps of phase a, phase B and phase C are all integrated with the insulation lead-in pipe.
6. The integrated high-voltage metering device on a fully insulated column as claimed in claim 1, wherein the insulated protective casing is of a tubular structure integrally formed by outdoor epoxy resin or silicon rubber materials, and is provided with a tower skirt at the periphery.
CN201920466128.5U 2019-04-09 2019-04-09 High-voltage integrated metering device on full-insulated column Active CN210401517U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920466128.5U CN210401517U (en) 2019-04-09 2019-04-09 High-voltage integrated metering device on full-insulated column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920466128.5U CN210401517U (en) 2019-04-09 2019-04-09 High-voltage integrated metering device on full-insulated column

Publications (1)

Publication Number Publication Date
CN210401517U true CN210401517U (en) 2020-04-24

Family

ID=70337411

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920466128.5U Active CN210401517U (en) 2019-04-09 2019-04-09 High-voltage integrated metering device on full-insulated column

Country Status (1)

Country Link
CN (1) CN210401517U (en)

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GR01 Patent grant
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CB03 Change of inventor or designer information

Inventor after: Hu Shun

Inventor after: Du Shichang

Inventor after: Liu Lei

Inventor before: Hu Shun

Inventor before: Du Shichang

CB03 Change of inventor or designer information