CN202602280U - Ground protection complete equipment with gap for neutral point of transformer - Google Patents

Ground protection complete equipment with gap for neutral point of transformer Download PDF

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Publication number
CN202602280U
CN202602280U CN 201220281539 CN201220281539U CN202602280U CN 202602280 U CN202602280 U CN 202602280U CN 201220281539 CN201220281539 CN 201220281539 CN 201220281539 U CN201220281539 U CN 201220281539U CN 202602280 U CN202602280 U CN 202602280U
Authority
CN
China
Prior art keywords
neutral point
zinc oxide
gap
oxide arrester
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
Application number
CN 201220281539
Other languages
Chinese (zh)
Inventor
葛玲玲
毛爱国
葛宁迁
殷晓宏
郝参观
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.)
To Ascend A Height Electric Applicance Co Ltd
Original Assignee
To Ascend A Height Electric Applicance Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by To Ascend A Height Electric Applicance Co Ltd filed Critical To Ascend A Height Electric Applicance Co Ltd
Priority to CN 201220281539 priority Critical patent/CN202602280U/en
Application granted granted Critical
Publication of CN202602280U publication Critical patent/CN202602280U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to ground protection complete equipment with a gap for a neutral point of a transformer. The ground protection complete equipment comprises a neutral point isolating switch, the neutral point discharge sphere gap and a zinc oxide arrester branch fixedly mounted in a steel channel. The steel channel is connected with the ground, the neutral point discharge sphere gap is respectively connected with the neutral point isolating switch and the zinc oxide arrester branch in parallel after being serially connected with a current transformer, the zinc oxide arrester branch comprises a monitor which is serially connected with a zinc oxide arrester, and a joint between the neutral point discharge sphere gap and the current transformer is connected to the steel channel by a neutral point gap porcelain insulator. Leakage current and action times of the arrester are recorded by the monitor, so that maintenance personnel can master running state of equipment, and safe and reliable running of the integral ground protection complete equipment is guaranteed. Besides, the isolating switch with a V-shaped insulating rod is adopted, and is integrated with the complete equipment, and accordingly the ground protection complete equipment is compact in structure and convenient to install.

Description

Transformer neutral point gap ground protection the complete sets of equipment
Technical field
The utility model relates to a kind of transformer neutral point gap ground protection the complete sets of equipment.
Background technology
Transformer neutral point gap ground protection the complete sets of equipment are a kind of being applicable in the power transformer earth neutral system, are used for realizing direct ground connection of power transformer or the complete sets of equipment that move through lightning arrester, discharging gap ground connection.When lightning overvoltage or the invasion of general operation overvoltage, the lightning arrester action absorbs and discharges the overvoltage energy, the protection transformer neutral point.When temporary overvoltages such as system's generation high-frequency resonant, discharging gap punctures, and the overvoltage energy is released into the earth, protects whole transformer neutral point and whole the complete sets of equipment.Existing transformer neutral point gap ground protection the complete sets of equipment generally do not have monitor, make the neutral ground protective device damage or wear out to be difficult for coming to light, and power transformer very likely wrecks, so that influences whole electric power system.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art, and a kind of monitoring function that has is provided, and guarantees the transformer neutral point gap ground protection the complete sets of equipment of whole power system stability operation.
For realizing above-mentioned purpose; The utility model adopts a kind of like this transformer neutral point gap ground protection the complete sets of equipment; Comprise neutral point isolating switch, neutral point ball discharge crack and be fixedly installed in the zinc oxide arrester branch road of channel-section steel; Described channel-section steel links to each other with the earth, after the series connection of described neutral point ball discharge crack summation current transformer, distinguishes parallelly connected with described neutral point isolating switch, described zinc oxide arrester branch road; Described zinc oxide arrester branch road comprises the monitor that is connected in series with described zinc oxide arrester, and porcelain vase is connected to described channel-section steel to the tie point of described neutral point ball discharge crack and described current transformer through the neutral point gap.
Especially; Also be provided with the V-arrangement insulating rod on the described channel-section steel; Be provided with two rotating shafts with described V-arrangement insulating rod concentric in the described V-arrangement insulating rod, described two rotating shafts connect two conducting rods respectively, motor drive mechanism through junction pipe drive described two rotating shafts around the axle center backward rotation.
Compared with present technology, the beneficial effect of the utility model is embodied in: adopt leakage current, the action frequency of monitor record lightning arrester, make the attendant grasp equipment operation condition, guarantee single unit system safety, operation reliably; In addition, adopt the isolating switch with V-arrangement insulating rod, make it and the design of being integral of the complete sets of equipment, compact conformation is convenient to install.
Description of drawings
Fig. 1 is the structural representation of a kind of transformer neutral point of the utility model embodiment gap ground protection the complete sets of equipment.
Among the figure: 1, neutral point isolating switch; 2, V-arrangement insulating rod; 3, zinc oxide arrester; 4, neutral point ball discharge crack; 5, current transformer; 6, neutral point gap porcelain vase; 7, channel-section steel; 8, motor drive mechanism; 9, junction pipe.
Embodiment
As shown in Figure 1; A kind of transformer neutral point gap ground protection the complete sets of equipment; Comprise neutral point isolating switch 1, neutral point ball discharge crack 4 and be fixedly installed in the zinc oxide arrester branch road of channel-section steel 7; Channel-section steel 7 links to each other with the earth, after 4 summation current transformers, 5 series connection of neutral point ball discharge crack, distinguishes parallelly connected with neutral point isolating switch 1, zinc oxide arrester branch road; The zinc oxide arrester branch road comprises the monitor that is connected in series with zinc oxide arrester 3, and porcelain vase 6 is connected to channel-section steel 7 to the tie point of neutral point ball discharge crack 4 summation current transformers 5 through the neutral point gap.
Also be provided with V-arrangement insulating rod 2 on the channel-section steel 7, be provided with two rotating shafts with V-arrangement insulating rod 2 concentrics in the V-arrangement insulating rod 2, two rotating shafts connect two conducting rods respectively, motor drive mechanism 8 through junction pipe 9 drive two rotating shafts around the axle center backward rotation.

Claims (2)

1. transformer neutral point gap ground protection the complete sets of equipment; Comprise neutral point isolating switch, neutral point ball discharge crack and be fixedly installed in the zinc oxide arrester branch road of channel-section steel; Described channel-section steel links to each other with the earth; It is characterized in that: after the series connection of described neutral point ball discharge crack summation current transformer; Parallelly connected respectively with described neutral point isolating switch, described zinc oxide arrester branch road, described zinc oxide arrester branch road comprises the monitor that is connected in series with described zinc oxide arrester, and porcelain vase is connected to described channel-section steel to the tie point of described neutral point ball discharge crack and described current transformer through the neutral point gap.
2. transformer neutral point according to claim 1 gap ground protection the complete sets of equipment; It is characterized in that: also be provided with the V-arrangement insulating rod on the described channel-section steel; Be provided with two rotating shafts in the described V-arrangement insulating rod with described V-arrangement insulating rod concentric; Described two rotating shafts connect two conducting rods respectively, motor drive mechanism through junction pipe drive described two rotating shafts around the axle center backward rotation.
CN 201220281539 2012-06-05 2012-06-05 Ground protection complete equipment with gap for neutral point of transformer Expired - Lifetime CN202602280U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220281539 CN202602280U (en) 2012-06-05 2012-06-05 Ground protection complete equipment with gap for neutral point of transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220281539 CN202602280U (en) 2012-06-05 2012-06-05 Ground protection complete equipment with gap for neutral point of transformer

Publications (1)

Publication Number Publication Date
CN202602280U true CN202602280U (en) 2012-12-12

Family

ID=47319796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220281539 Expired - Lifetime CN202602280U (en) 2012-06-05 2012-06-05 Ground protection complete equipment with gap for neutral point of transformer

Country Status (1)

Country Link
CN (1) CN202602280U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104078849A (en) * 2014-07-25 2014-10-01 国家电网公司 Mounting bracket for lightning arrester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104078849A (en) * 2014-07-25 2014-10-01 国家电网公司 Mounting bracket for lightning arrester
CN104078849B (en) * 2014-07-25 2016-06-08 国家电网公司 Support for installation of lighning arrestor

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20121212