CN101982910B - Alternating current high voltage potential transformer handcart - Google Patents

Alternating current high voltage potential transformer handcart Download PDF

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Publication number
CN101982910B
CN101982910B CN 201010289757 CN201010289757A CN101982910B CN 101982910 B CN101982910 B CN 101982910B CN 201010289757 CN201010289757 CN 201010289757 CN 201010289757 A CN201010289757 A CN 201010289757A CN 101982910 B CN101982910 B CN 101982910B
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CN
China
Prior art keywords
handcart
potential transformer
voltage
transformer
supporting insulator
Prior art date
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Active
Application number
CN 201010289757
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Chinese (zh)
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CN101982910A (en
Inventor
束龙胜
吴夕球
唐荣保
王骢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Zhongdian Xingfa and Xinlong Technology Co Ltd
Original Assignee
Anhui Xinlong Electrical Co Ltd
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Publication date
Application filed by Anhui Xinlong Electrical Co Ltd filed Critical Anhui Xinlong Electrical Co Ltd
Priority to CN 201010289757 priority Critical patent/CN101982910B/en
Publication of CN101982910A publication Critical patent/CN101982910A/en
Application granted granted Critical
Publication of CN101982910B publication Critical patent/CN101982910B/en
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Abstract

The invention discloses an alternating current high voltage potential transformer handcart, comprising a movable handcart unit. A triphase contact terminal assembly is mounted at the upper part of the movable handcart unit by a first supporting insulator and a conductive block; the potential transformer is mounted in the middle part of the movable handcart unit, a high voltage line incoming terminal of the voltage transformer is connected to the triphase contact terminal assembly by a fuse protector and the conductive block; a neutral point contact terminal is fixed on a second supporting insulator by a connecting conductive bar; and the second supporting insulator is equipped at the lower front part of the movable handcart unit, and the connecting conductive bar is connected with a neutral point connecting point of the voltage potential transformer. The structure is provided with four contact terminals among which three contact terminals are respectively connected with a triphase supply bus in the grid system. When a primary side neutral point of the potential transformer mounted in the grid system is not directly grounded but grounded by an arc suppression coil or a resister after being led out, a fourth contact terminal can be adopted to lead out the potential transformer central point to be connected.

Description

A kind of handcart of AC high-voltage potential transformer
Technical field
The present invention relates to a kind of handcart of AC high-voltage potential transformer.
Background technology
The indoor alternating current high voltage voltage transformer is as indispensable measuring equipment in the electric power system, and Main Function is that the assurance network system is normally moved for the model collection of metering and protection control appliance.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 high-voltage fuse bamboo weir device, 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 for the protection of 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 in the situation of operation of power networks quality, process 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.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of handcart of AC high-voltage potential transformer for 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 to drawing when the 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.
Technical scheme of the present invention is this kind handcart of AC high-voltage potential transformer, comprises movably handcart unit, and the three-phase contact assembly is installed in the movably top of handcart unit by conducting block and the 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 the second supporting insulator, and the second supporting insulator is positioned at the movably lower front portion of handcart unit, and the connection busbar is connected simultaneously row 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 the 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 the second supporting insulator is fixed on the lower 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 handcart of AC high-voltage potential transformer with said structure has the following advantages:
1; the innovative design of this kind handcart of AC high-voltage potential transformer four contacts; wherein three contacts are connected with three phase mains bus in the network system respectively; behind high-voltage fuse bamboo weir device, 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 for the protection of voltage transformer; when the voltage transformer primary side neutral point of installing in network system is not taked direct ground connection; take after need to drawing when the 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 handcart of AC high-voltage potential transformer is fixedly mounted on the lower front portion of frame body, do not affect 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 invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present invention.
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 handcart of AC high-voltage potential transformer, 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 handcart of AC high-voltage potential transformer 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 conducting block 4 and the 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 the second supporting insulator 12, and the second supporting insulator 12 is fixed on the lower front portion of frame body 1, and connection busbar 7 is connected simultaneously row 11 and links together with the neutral point of voltage transformer 2.Neutral point contact 8 is fixedly mounted on the lower front portion of frame body 1, do not affect 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 handcart of AC high-voltage potential transformer 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, and being used for other protection controls needs.

Claims (3)

1. handcart of AC high-voltage potential transformer, it is characterized in that: described handcart of AC high-voltage potential transformer comprises movably handcart unit, and three-phase contact assembly (5) is installed in the movably top of handcart unit by conducting block (4) and the 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 the second supporting insulator (12), the second supporting insulator (12) is positioned at the movably lower 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. a kind of handcart of AC high-voltage potential transformer 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 the 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 the second supporting insulator (12) is fixed on the lower front portion of frame body (1).
3. a kind of handcart of AC high-voltage potential transformer 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.
CN 201010289757 2010-09-19 2010-09-19 Alternating current high voltage potential transformer handcart Active CN101982910B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010289757 CN101982910B (en) 2010-09-19 2010-09-19 Alternating current high voltage potential transformer handcart

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010289757 CN101982910B (en) 2010-09-19 2010-09-19 Alternating current high voltage potential transformer handcart

Publications (2)

Publication Number Publication Date
CN101982910A CN101982910A (en) 2011-03-02
CN101982910B true CN101982910B (en) 2013-10-30

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CN 201010289757 Active CN101982910B (en) 2010-09-19 2010-09-19 Alternating current high voltage potential transformer handcart

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108123391A (en) * 2017-12-29 2018-06-05 卓维电力科技有限公司 A kind of three PT isolated hand cars being conveniently replaceable

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101001004A (en) * 2006-01-11 2007-07-18 上海大佳电器有限公司 Operation power supply carriage for voltage control cabinet
CN201336521Y (en) * 2009-01-09 2009-10-28 北海银河开关设备有限公司 Three-phase 24kV voltage mutual-inductor handcart
CN201360104Y (en) * 2009-01-09 2009-12-09 北海银河开关设备有限公司 Three-phase 24kV isolating handcart
CN201887367U (en) * 2010-09-19 2011-06-29 安徽鑫龙电器股份有限公司 Handcart of AC high-voltage potential transformer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101001004A (en) * 2006-01-11 2007-07-18 上海大佳电器有限公司 Operation power supply carriage for voltage control cabinet
CN201336521Y (en) * 2009-01-09 2009-10-28 北海银河开关设备有限公司 Three-phase 24kV voltage mutual-inductor handcart
CN201360104Y (en) * 2009-01-09 2009-12-09 北海银河开关设备有限公司 Three-phase 24kV isolating handcart
CN201887367U (en) * 2010-09-19 2011-06-29 安徽鑫龙电器股份有限公司 Handcart of AC high-voltage potential transformer

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Address after: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118

Patentee after: ANHUI ZHONGDIAN XINGFA AND XINLONG TECHNOLOGY CO., LTD.

Address before: 241008 Anhui Province, Wuhu City Jiuhua Jiujiang District Road No. 118

Patentee before: Xinlong Electric-Appliance Co., Ltd., Anhui