CN201887367U - Handcart of AC high-voltage potential transformer - Google Patents
Handcart of AC high-voltage potential transformer Download PDFInfo
- Publication number
- CN201887367U CN201887367U CN2010205396483U CN201020539648U CN201887367U CN 201887367 U CN201887367 U CN 201887367U CN 2010205396483 U CN2010205396483 U CN 2010205396483U CN 201020539648 U CN201020539648 U CN 201020539648U CN 201887367 U CN201887367 U CN 201887367U
- Authority
- CN
- China
- Prior art keywords
- voltage
- handcart
- transformer
- neutral point
- voltage transformer
- 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 - Lifetime
Links
- 230000007935 neutral effect Effects 0.000 claims abstract description 25
- 239000012212 insulator Substances 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a handcart of an AC high-voltage potential transformer. The handcart comprises a movable handcart unit; a three-phase contact terminal component is mounted at the upper part of the movable handcart unit through a conductive block and a first support insulator; a voltage transformer is mounted in the middle of the movable handcart unit, and the high-voltage wire inlet end of the voltage transformer is connected to the three-phase contact terminal component through a fuse and another conductive block; and a neutral point contact terminal is fixed on a second support insulator through a connection conductive bar, the second support insulator is fixed at the lower front part of the movable handcart unit, and the connection conductive bar is connected with a neutral point connection bar of the voltage transformer. By adopting the structural design that four contact terminals are provided, and three of the four contact terminals are connected with buses of a three-phase power source in a network system; and the fourth contact terminal is adopted when a primary side neutral point of the voltage transformer mounted in the network system, instead of being grounded directly, needs to be led out and grounded by adopting an arc suppression coil or a resistor, so as to lead out the neutral point of the voltage transformer for wiring.
Description
Technical field
The utility model relates to a kind of ac high-voltage voltage instrument transformer handcart.
Background technology
Indoor ac high-voltage voltage instrument transformer is as indispensable measuring equipment in the electric power system, and main effect is the model collection that is used to measure and protect control appliance, and the assurance network system is normally moved.The high voltage potential transformer handcart is because reliable in function, easy to usely is widely used in electric power system.
Existing high voltage potential transformer handcart adopts three contacts to be connected with three phase mains bus in the network system respectively; behind the molten bamboo weir device of high pressure, take star or V-arrangement to be connected with the primary side of high voltage potential transformer; gather on the bus voltage-type number, the voltage fuse is used to protect voltage transformer.The voltage transformer primary side neutral point of installing in the 10kV network system adopts direct grounding way more.If improve at needs under the situation of operation of power networks quality, handle with regard to needing that electrical network is carried out the harmonic elimination antivibration, can take through earthing modes such as arc suppression coil or resistance this moment at voltage transformer primary side neutral point, and existing structure then can't be drawn wiring with neutral point by voltage transformer primary side neutral-point solid ground design.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of ac high-voltage voltage instrument transformer handcart at problems of the prior art, its objective is that working as the voltage transformer primary side neutral point of installing in network system does not take direct ground connection, take after need drawing when earthing modes such as arc suppression coil or resistance, can adopt the 4th contact, be used for the voltage transformer neutral point is drawn wiring.
The technical solution of the utility model is this kind ac high-voltage voltage instrument transformer handcart, comprises movably handcart unit, and the three-phase contact assembly is installed in the movably top of handcart unit by the conducting block and first supporting insulator; Voltage transformer is installed in the movably middle part of handcart unit, and the high pressure end of incoming cables of voltage transformer is connected on the three-phase contact assembly by fuse and conducting block; The neutral point contact adopts the connection busbar to be fixed on second supporting insulator, and second supporting insulator is fixed on the movably following front portion of handcart unit, and the connection busbar is connected row simultaneously and links together with the neutral point of voltage transformer.
Described movably handcart unit comprises travelling car and is installed in frame body on the travelling car, described first supporting insulator is installed in the top of frame body, described voltage transformer is installed in the middle part of frame body, and described second supporting insulator is fixed on the following front portion of frame body.
The bottom fixed installation of described frame body is useful on the insulating pad of reinforced insulation.
A kind of ac high-voltage voltage instrument transformer handcart with said structure has the following advantages:
1; the innovative design of this kind ac high-voltage voltage instrument transformer handcart four contacts; wherein three contacts are connected with three phase mains bus in the network system respectively; behind high-tension fuse, take star or V-arrangement to be connected with the primary side of high voltage potential transformer; gather on the bus voltage-type number; the voltage fuse is used to protect voltage transformer; when the voltage transformer primary side neutral point of installing in network system is not taked direct ground connection; take after need drawing when earthing modes such as arc suppression coil or resistance; can adopt the 4th contact, be used for the voltage transformer neutral point is drawn wiring.
2, the neutral point contact of this kind ac high-voltage voltage instrument transformer handcart is fixedly mounted on the following front portion of frame body, do not influence the installing space of voltage transformer, simultaneously, for the voltage of neutral point under abnormal conditions of guaranteeing voltage transformer rises, bottom at frame body is installed with insulating pad, is used for reinforced insulation.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of structure shown in Figure 1.
In Fig. 1-2,1: frame body; 2: voltage transformer; 3: travelling car; 4: conducting block; 5: the three-phase contact assembly; 6: fuse; 7: connect busbar; 8: the neutral point contact assembly; 9: the first supporting insulators; 10: insulating pad; 11: neutral point connects row; 12: the second supporting insulators.
Embodiment
Structure shown in Figure 1 is the structural representation of this kind ac high-voltage voltage instrument transformer handcart, and Fig. 2 is the left view of structure shown in Figure 1.By the combination of structure shown in Fig. 1-2 as can be known, this kind ac high-voltage voltage instrument transformer handcart comprises travelling car 3 and is installed in frame body 1 on the travelling car 3 that three-phase contact assembly 5 is installed in the top of frame body 1 by the conducting block 4 and first supporting insulator 9; Voltage transformer 2 is installed in the middle part of frame body 1, and the high pressure end of incoming cables of voltage transformer 2 is connected on the three-phase contact assembly 5 by fuse 6 and conducting block 4; Neutral point contact 8 adopts connection busbar 7 to be fixed on second supporting insulator 12, and second supporting insulator 12 is fixed on the following front portion of frame body 1, and connection busbar 7 is connected row 11 simultaneously and links together with the neutral point of voltage transformer 2.Neutral point contact 8 is fixedly mounted on the following front portion of frame body 1, do not influence the installing space of voltage transformer 2, for the voltage of neutral point under abnormal conditions of guaranteeing voltage transformer 2 rises, be installed with insulating pad 10 in the bottom of frame body 1, be used for reinforced insulation.
The operation principle of this kind ac high-voltage voltage instrument transformer handcart is: the high voltage potential transformer handcart is when work; three-phase contact assembly 5 is connected with the three-phase bus of high-tension switch cabinet; voltage transformer 2 just can in time collect the live signal of three-phase voltage; neutral point contact 8 can be used for the neutral point of voltage transformer 2 is incorporated into high-tension switch cabinet inside, is used for other protection control needs.
Claims (3)
1. ac high-voltage voltage instrument transformer handcart, it is characterized in that: described ac high-voltage voltage instrument transformer handcart comprises movably handcart unit, and three-phase contact assembly (5) is installed in the movably top of handcart unit by conducting block (4) and first supporting insulator (9); Voltage transformer (2) is installed in the movably middle part of handcart unit, and the high pressure end of incoming cables of voltage transformer (2) is connected on the three-phase contact assembly (5) by fuse (6) and conducting block (4); Neutral point contact (8) adopts connection busbar (7) to be fixed on second supporting insulator (12), second supporting insulator (12) is fixed on the movably following front portion of handcart unit, and connection busbar (7) is connected row (11) with the neutral point of voltage transformer (2) simultaneously and links together.
2. ac high-voltage voltage instrument transformer handcart according to claim 1, it is characterized in that: described movably handcart unit comprises travelling car (3) and is installed in frame body (1) on the travelling car (3), described first supporting insulator (9) is installed in the top of frame body (1), described voltage transformer (2) is installed in the middle part of frame body (1), and described second supporting insulator (12) is fixed on the following front portion of frame body (1).
3. ac high-voltage voltage instrument transformer handcart according to claim 2 is characterized in that: the bottom fixed installation of described frame body (1) is useful on the insulating pad (10) of reinforced insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205396483U CN201887367U (en) | 2010-09-19 | 2010-09-19 | Handcart of AC high-voltage potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205396483U CN201887367U (en) | 2010-09-19 | 2010-09-19 | Handcart of AC high-voltage potential transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887367U true CN201887367U (en) | 2011-06-29 |
Family
ID=44184913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205396483U Expired - Lifetime CN201887367U (en) | 2010-09-19 | 2010-09-19 | Handcart of AC high-voltage potential transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201887367U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982910A (en) * | 2010-09-19 | 2011-03-02 | 安徽鑫龙电器股份有限公司 | Alternating current high voltage potential transformer handcart |
| TWI799098B (en) * | 2021-02-25 | 2023-04-11 | 美商金盤電氣設備股份有限公司 | Switchgear system having truck driven shutter mechanism and method for operating the same |
| US11742639B2 (en) | 2021-02-25 | 2023-08-29 | Jst Power Equipment, Inc. | Switchgear system having truck driven shutter mechanism |
-
2010
- 2010-09-19 CN CN2010205396483U patent/CN201887367U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982910A (en) * | 2010-09-19 | 2011-03-02 | 安徽鑫龙电器股份有限公司 | Alternating current high voltage potential transformer handcart |
| CN101982910B (en) * | 2010-09-19 | 2013-10-30 | 安徽鑫龙电器股份有限公司 | Alternating current high voltage potential transformer handcart |
| TWI799098B (en) * | 2021-02-25 | 2023-04-11 | 美商金盤電氣設備股份有限公司 | Switchgear system having truck driven shutter mechanism and method for operating the same |
| US11742639B2 (en) | 2021-02-25 | 2023-08-29 | Jst Power Equipment, Inc. | Switchgear system having truck driven shutter mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20131030 |
|
| RGAV | Abandon patent right to avoid regrant |