CN203552919U - Voltage transformer with high and low voltage fuse protection function - Google Patents

Voltage transformer with high and low voltage fuse protection function Download PDF

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Publication number
CN203552919U
CN203552919U CN201320754157.4U CN201320754157U CN203552919U CN 203552919 U CN203552919 U CN 203552919U CN 201320754157 U CN201320754157 U CN 201320754157U CN 203552919 U CN203552919 U CN 203552919U
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CN
China
Prior art keywords
voltage
transformer
fuse
low
tension
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
Application number
CN201320754157.4U
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Chinese (zh)
Inventor
胥卫
姚金龙
姚海明
蔡强
杨峰
印慧
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.)
JIANGSU KEXING ELECTRICAL APPLIANCES CO Ltd
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JIANGSU KEXING ELECTRICAL APPLIANCES CO Ltd
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Application filed by JIANGSU KEXING ELECTRICAL APPLIANCES CO Ltd filed Critical JIANGSU KEXING ELECTRICAL APPLIANCES CO Ltd
Priority to CN201320754157.4U priority Critical patent/CN203552919U/en
Application granted granted Critical
Publication of CN203552919U publication Critical patent/CN203552919U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a voltage transformer with the high and low voltage fuse protection function. The voltage transformer with the high and low voltage fuse protection function comprises an iron core, a primary winding and one or more secondary windings, wherein the iron core is integrally poured inside an epoxy resin outer shell; high voltage fuses are connected to high voltage lead terminals of the primary winding; the loops of the secondary windings are connected with low voltage fuses in series. The high voltage fuses and the low voltage fuses are connected to the primary winding and the secondary windings of the transformer in series, and the epoxy resin outer shell is integrally poured on the transformer through the high voltage fuses and the low voltage fuses, so that the voltage transformer is simple in structure and convenient to use, install and maintain, can be effectively prevented from burning by wiring errors, and improves the using safety performance.

Description

A kind of voltage transformer with the protection of high and low pressure fuse
Technical field
The utility model relates to voltage transformer, is a kind of voltage transformer with the protection of high and low pressure fuse specifically.
Background technology
Voltage transformer is the main components in switch cubicle, and tradition adopts two single-phase potential transformers to be used in conjunction with, more corresponding two fuses of installing are realized voltage measurement or electic protection respectively.Along with instrument transformer industry development, the application of primary circuit band fuse instrument transformer, had simplified inside switch cabinet layout to a certain extent in recent years.But the secondary circuit of instrument transformer needs to install separately overcurrent protection; exist the drawbacks such as loaded down with trivial details, insulating space is nervous, easy wiring error causes that instrument transformer burns are installed; usage safety performance is low, brings very large inconvenience to instrument transformer manufacturing firm, switch cubicle manufactory, electric power system and user.
Summary of the invention
For above shortcomings part in prior art, it is a kind of simple in structure, compact that the utility model provides, and insulation is reliable, can effectively prevent that instrument transformer from burning, and uses stable, the safe voltage transformer with the protection of high and low pressure fuse.
The utility model adopts following technical scheme: a kind of voltage transformer with the protection of high and low pressure fuse; comprise that one is cast in the iron core in epoxy package, a winding and an above secondary winding; on the high-voltage connection terminal of a winding, be connected with high-tension fuse, it is characterized in that being serially connected with low-tension fuse in the loop of described secondary winding.
Described epoxy package lower sides is provided with secondary terminal box, and low tension terminal and the low-tension fuse of secondary winding are all arranged in secondary terminal box.
Described epoxy package top is provided with stick harness one time, and high-tension fuse is arranged in a stick harness and through being arranged at a spring in stick harness and connects high-voltage connection terminal.
Described epoxy package top is provided with two stick harnesses, in two stick harnesses, be equipped with high-tension fuse, two high-voltage connection terminals of a winding are all connected with and are placed in the high-tension fuse in stick harness one time, and high-tension fuse connects high-voltage connection terminal through being arranged at a spring in stick harness.
Adopt above technical scheme, the beneficial effects of the utility model are: high-tension fuse is arranged in stick harness and is connected with a winding by spring, in the secondary terminal box of instrument transformer bottom, low tension terminal and low-tension fuse are set simultaneously, instrument transformer compact overall structure, takes up room little, reduces the headspace that switch cubicle uses separately high pressure and low-tension fuse, can effectively utilize instrument transformer space, improve insulation property, prevent that second short circuit from causing instrument transformer to burn, use safety.
The utility model instrument transformer once, be connected in series high and low pressure fuse in secondary winding, by high and low pressure fuse one on instrument transformer, pour into epoxy package, it is simple in structure, use, installation, easy to maintenance, can effectively avoid wiring error to cause burning of voltage transformer, improve usage safety performance.
Accompanying drawing explanation
Fig. 1 is the utility model circuit diagram;
Fig. 2 is the utility model structural representation;
Fig. 3 is Fig. 1 left view.
In figure: a stick harness 1, high-tension fuse 2, spring 3,4, windings 5 unshakable in one's determination, secondary winding 6, epoxy package 7, low-tension fuse 8, secondary connection post 9, secondary terminal box 10.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Shown in Fig. 1; a kind of voltage transformer with the protection of high and low pressure fuse; comprise on two high-voltage connection terminals of 4, windings 5 unshakable in one's determination and 6, windings 5 of two secondary winding and be all connected with high-tension fuse 2, in the loop of secondary winding 6, be serially connected with low-tension fuse 8.
Shown in Fig. 2-3, a kind of voltage transformer with high and low pressure fuse protection comprises stick harness 1, high-tension fuse 2, spring 3,4, windings 5, secondary winding 6, epoxy package 7, low-tension fuse 8, secondary connection post 9 and secondary terminal boxes 10 unshakable in one's determination.Unshakable in one's determination 4, a winding 5 and an above corresponding one of secondary winding 6 are cast in epoxy package 7, epoxy package 7 lower sides are provided with secondary terminal box 10, secondary connection post 9 and low-tension fuse 8 that secondary winding 6 is located at respectively on two binding posts are all arranged in secondary terminal box 10, epoxy package 7 tops are provided with two stick harnesses 1, in two stick harnesses 1, be equipped with high-tension fuse 2, two high-voltage connection terminals of a winding 5 connect and are placed in the high-tension fuse 2 in stick harness 1 one time through spring 3 respectively, the bottom of epoxy package 7 is provided with footing.

Claims (4)

1. the voltage transformer with high and low pressure fuse protection; comprise that one is cast in the iron core in epoxy package, a winding and an above secondary winding; on the high-voltage connection terminal of a winding, be connected with high-tension fuse, it is characterized in that: in the loop of described secondary winding, be serially connected with low-tension fuse.
2. a kind of voltage transformer with high and low pressure fuse protection according to claim 1; it is characterized in that: described epoxy package lower sides is provided with secondary terminal box, low tension terminal and the low-tension fuse of secondary winding are all arranged in secondary terminal box.
3. a kind of voltage transformer with high and low pressure fuse protection according to claim 1 and 2; it is characterized in that: described epoxy package top is provided with stick harness one time, high-tension fuse is arranged in a stick harness and through being arranged at a spring in stick harness and connects high-voltage connection terminal.
4. a kind of voltage transformer with high and low pressure fuse protection according to claim 1 and 2; it is characterized in that: described epoxy package top is provided with two stick harnesses; in two stick harnesses, be equipped with high-tension fuse; two high-voltage connection terminals of a winding are all connected with and are placed in the high-tension fuse in stick harness one time, and high-tension fuse connects high-voltage connection terminal through being arranged at a spring in stick harness.
CN201320754157.4U 2013-11-26 2013-11-26 Voltage transformer with high and low voltage fuse protection function Expired - Lifetime CN203552919U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320754157.4U CN203552919U (en) 2013-11-26 2013-11-26 Voltage transformer with high and low voltage fuse protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320754157.4U CN203552919U (en) 2013-11-26 2013-11-26 Voltage transformer with high and low voltage fuse protection function

Publications (1)

Publication Number Publication Date
CN203552919U true CN203552919U (en) 2014-04-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320754157.4U Expired - Lifetime CN203552919U (en) 2013-11-26 2013-11-26 Voltage transformer with high and low voltage fuse protection function

Country Status (1)

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CN (1) CN203552919U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104021927A (en) * 2014-05-30 2014-09-03 大连和源电器有限公司 Outdoor voltage transformer with fuse protection on high-voltage side and low-voltage side
CN106024342A (en) * 2016-07-06 2016-10-12 江苏科兴电器有限公司 3-35kV self-recovery and short circuit preventing voltage transformer
CN107768123A (en) * 2017-10-23 2018-03-06 湖北霞光电力设备有限公司 A kind of intelligent power-off protection electromagnetic potential transformer
CN107768076A (en) * 2017-11-06 2018-03-06 江苏科兴电器有限公司 A kind of transformer with waterproof and anti-false wiring function
CN109755010A (en) * 2019-03-13 2019-05-14 浙江天际互感器有限公司 A kind of voltage transformer with air duct radiation and secondary fusing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104021927A (en) * 2014-05-30 2014-09-03 大连和源电器有限公司 Outdoor voltage transformer with fuse protection on high-voltage side and low-voltage side
CN106024342A (en) * 2016-07-06 2016-10-12 江苏科兴电器有限公司 3-35kV self-recovery and short circuit preventing voltage transformer
CN107768123A (en) * 2017-10-23 2018-03-06 湖北霞光电力设备有限公司 A kind of intelligent power-off protection electromagnetic potential transformer
CN107768076A (en) * 2017-11-06 2018-03-06 江苏科兴电器有限公司 A kind of transformer with waterproof and anti-false wiring function
CN109755010A (en) * 2019-03-13 2019-05-14 浙江天际互感器有限公司 A kind of voltage transformer with air duct radiation and secondary fusing

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CX01 Expiry of patent term

Granted publication date: 20140416

CX01 Expiry of patent term