CN203433027U - A coupling capacitive voltage divider medium-voltage binding post - Google Patents
A coupling capacitive voltage divider medium-voltage binding post Download PDFInfo
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- CN203433027U CN203433027U CN201320549558.6U CN201320549558U CN203433027U CN 203433027 U CN203433027 U CN 203433027U CN 201320549558 U CN201320549558 U CN 201320549558U CN 203433027 U CN203433027 U CN 203433027U
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Abstract
The utility model relates to a coupling capacitive voltage divider medium-voltage binding post comprising an expander, a porcelain bushing, capacitor oil, and a medium-voltage binding post. The top of the porcelain bushing is connected with the expander, while the bottom of the porcelain bushing is connected with an end cap flange. The capacitor oil is distributed inside the porcelain bushing. The medium-voltage binding post in extended from the interior of the porcelain bushing to a position under the end cap flange from top to bottom, and mainly comprises a pouring piece, medium-voltage terminals, a shielding case, a positioning ring, and a low-voltage connector. The positioning ring is arranged on the middle part of the pouring piece. The low-voltage connector is arranged inside the pouring piece. The shielding case is arranged between the low-voltage connector and the pouring piece. A plurality of medium-voltage terminals are uniformly disposed on a side of the outer surface of the pouring piece. The coupling capacitive voltage divider medium-voltage binding post has advantages that the shielding case is added inside the medium-voltage binding post in order to limit a medium-voltage part inside the shielding case and prevent the binding post from internally discharging, that low voltage is led out from the shielding case such that medium voltage and low voltage can be installed on a same terminal in order to decrease the types of the terminals.
Description
Technical field
The utility model relates to compression bonded line terminal in a kind of coupling capacitance voltage divider, and a kind of terminal internal discharge that prevents specifically reduces the device of terminal kind.
Background technology
Because relatively the compressive resistance of conventional, electric-resistance formula voltage divider is large, be difficult for puncturing, capacitive divider is generally used for measuring ac high-voltage.But because the response time value of its frequency response effect is larger than resitstance voltage divider, so that uses than resitstance voltage divider in the measurement of surge voltage is few, the conventional RC divider of measurement warp for extra-high-speed surge voltage, when carrying out high pressure withstand voltage test, can use series resonance, in series resonance, will use capacitive divider so, it and reactor can produce high pressure after producing shake altogether.Can carry out high pressure withstand voltage test to high-tension apparatus.
Coupling condenser is the capacitor for transmission of signal in electric power networks; be mainly used in power frequency high voltage and ultrahigh-voltage alternating-current transmission line of electricity; to realize carrier wave, communication, measurement, control, protection and to extract the objects such as electric energy; to make forceful electric power and two systems of light current by capacitor-coupled isolation; high-frequency signal path is provided; stop power current to enter weak electricity system, ensure personal safety.With the coupling condenser of capacitor-voltage detecting device, except above effect, also can extract power-frequency voltage for protection and reclosing, play the effect of voltage transformer (VT).
At present, in the prior art, for the mesolow terminal of capacitive divider, owing to not adopting radome, it is very low that starting potential is put in office, can not meet GB requirement.In the middle of industry, can only take mesolow terminal to separate deriving structure, mesolow terminal lays respectively at lower cover both sides, cannot accomplish integrative-structure.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of terminal internal discharge that prevents, compression bonded line terminal in the coupling capacitance voltage divider of minimizing terminal kind.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: compression bonded line terminal in a kind of coupling capacitance voltage divider, and its innovative point is: mainly comprise expander, insulator, condenser oil and middle compression bonded line terminal;
The upper end of described insulator is connected with expander by insulator flange, and the lower end of insulator is connected with end cap flange by insulator flange, is distributed with condenser oil in insulator, and described middle compression bonded line terminal extends the below of end cap flange from top to bottom from the inside of insulator;
Described middle compression bonded line terminal mainly comprises pouring piece, middle crimping terminal, radome, locating ring and low-pressure connector, the whole one-tenth in upper end of pouring piece is cylindric, the whole tapered shape in lower end, medium position in the columnar portion of pouring piece arranges locating ring, described locating ring is fixed on end cap flange by nut, in pouring piece, be provided with low-pressure connector, described low-pressure connector is along the central axis direction setting of pouring piece, and the two ends of low-pressure connector are exposed at respectively the outside of pouring piece, between low-pressure connector and pouring piece, be provided with radome, described radome is cylindric, and the two ends of radome are outwards respectively certain radian, one side of the outside surface of described pouring piece is evenly provided with several middle crimping terminals.
The utility model has the advantage of: the inner radome that increases of intermediate voltage terminal, intermediate pressure section is completely cut off in radome inside, stop terminal internal discharge, low pressure is drawn and is positioned on radome, mesolow can be arranged on same terminal, reduce the kind of terminal, enhance product performance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of coupling capacitance voltage divider of the present utility model.
Fig. 2 is the schematic diagram of middle compression bonded line terminal of the present utility model.
Embodiment
Schematic diagram is as shown in Figure 1 known, and in coupling capacitance voltage divider of the present utility model, compression bonded line terminal mainly comprises and mainly comprises expander 8, insulator 7, condenser oil 2 and middle compression bonded line terminal 3.
Upper end at insulator 7 is connected with expander 8 by insulator flange 5, between insulator flange 5 and expander 8, by nut screwing clamping, fix, the lower end of insulator 7 is connected with end cap flange 4 by insulator flange 5, between insulator flange 5 and end cap flange 4, by nut screwing clamping, fix, in the inner chamber of insulator 7, be distributed with condenser oil 2, middle compression bonded line terminal 3 extends the below of end cap flange 4 from top to bottom from the inside of insulator 7, and the top of middle compression bonded line terminal 3 access capacitive divider intermediate voltage terminal 6, the side access capacitive divider low pressure end 1 of middle compression bonded line terminal 3.
Schematic diagram is as shown in Figure 2 known, middle compression bonded line terminal 3 mainly comprises pouring piece 9, middle crimping terminal 10, radome 11, locating ring 13 and low-pressure connector 12, the whole one-tenth in upper end of pouring piece 9 is cylindric, the whole tapered shape in lower end of pouring piece 9, medium position in the columnar portion of pouring piece 9 arranges locating ring 13, locating ring 13 is positioned at the below of end cap flange 4, and locating ring 13 is fixed on end cap flange 4 by nut, in pouring piece 9, be provided with low-pressure connector 12, low-pressure connector 12 is along the central axis direction setting of pouring piece 9, and the two ends of low-pressure connector 12 are exposed at respectively the outside of pouring piece 9, the medium position of low-pressure connector 12 in pouring piece 9, two ends in low-pressure connector 12 are provided with screw fixed hole, between low-pressure connector 12 and pouring piece 9, be provided with radome 11, radome 11 is cylindric, and the two ends of radome 11 are outwards respectively certain radian, a side at the outside surface of pouring piece 9 is provided with middle crimping terminal 10, middle crimping terminal 10 1 has two, and take locating ring 13 as the symmetrical setting of line of symmetry, on middle crimping terminal 10, have screw fixed hole.
Claims (1)
1. a compression bonded line terminal in coupling capacitance voltage divider, is characterized in that: mainly comprise expander, insulator, condenser oil and middle compression bonded line terminal;
The upper end of described insulator is connected with expander by insulator flange, and the lower end of insulator is connected with end cap flange by insulator flange, is distributed with condenser oil in insulator, and described middle compression bonded line terminal extends the below of end cap flange from top to bottom from the inside of insulator;
Described middle compression bonded line terminal mainly comprises pouring piece, middle crimping terminal, radome, locating ring and low-pressure connector, the whole one-tenth in upper end of pouring piece is cylindric, the whole tapered shape in lower end, medium position in the columnar portion of pouring piece arranges locating ring, described locating ring is fixed on end cap flange by nut, in pouring piece, be provided with low-pressure connector, described low-pressure connector is along the central axis direction setting of pouring piece, and the two ends of low-pressure connector are exposed at respectively the outside of pouring piece, between low-pressure connector and pouring piece, be provided with radome, described radome is cylindric, and the two ends of radome are outwards respectively certain radian, one side of the outside surface of described pouring piece is evenly provided with several middle crimping terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549558.6U CN203433027U (en) | 2013-09-05 | 2013-09-05 | A coupling capacitive voltage divider medium-voltage binding post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320549558.6U CN203433027U (en) | 2013-09-05 | 2013-09-05 | A coupling capacitive voltage divider medium-voltage binding post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433027U true CN203433027U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320549558.6U Expired - Lifetime CN203433027U (en) | 2013-09-05 | 2013-09-05 | A coupling capacitive voltage divider medium-voltage binding post |
Country Status (1)
| Country | Link |
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| CN (1) | CN203433027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640554A (en) * | 2020-06-10 | 2020-09-08 | 苏州电器科学研究院股份有限公司 | Capacitor voltage transformer |
-
2013
- 2013-09-05 CN CN201320549558.6U patent/CN203433027U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640554A (en) * | 2020-06-10 | 2020-09-08 | 苏州电器科学研究院股份有限公司 | Capacitor voltage transformer |
| CN111640554B (en) * | 2020-06-10 | 2021-11-26 | 苏州电器科学研究院股份有限公司 | Capacitor voltage transformer |
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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: 20140212 |