CN204115768U - A kind of transformer online monitoring equipment - Google Patents

A kind of transformer online monitoring equipment Download PDF

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Publication number
CN204115768U
CN204115768U CN201420539624.6U CN201420539624U CN204115768U CN 204115768 U CN204115768 U CN 204115768U CN 201420539624 U CN201420539624 U CN 201420539624U CN 204115768 U CN204115768 U CN 204115768U
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CN
China
Prior art keywords
transformer
monitoring device
sleeve pipe
iron core
line
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
CN201420539624.6U
Other languages
Chinese (zh)
Inventor
王云涛
龙洁
刘杰
许根喜
曹海斌
张卓云
唐孝君
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.)
SHANGHAI XINYING POWERTECH CO Ltd
State Grid Corp of China SGCC
Jiaozuo Power Supply Co of State Grid Henan Electric Power Co Ltd
Original Assignee
SHANGHAI XINYING POWERTECH CO Ltd
State Grid Corp of China SGCC
Jiaozuo Power Supply Co of State Grid Henan Electric Power 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 SHANGHAI XINYING POWERTECH CO Ltd, State Grid Corp of China SGCC, Jiaozuo Power Supply Co of State Grid Henan Electric Power Co Ltd filed Critical SHANGHAI XINYING POWERTECH CO Ltd
Priority to CN201420539624.6U priority Critical patent/CN204115768U/en
Application granted granted Critical
Publication of CN204115768U publication Critical patent/CN204115768U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a kind of transformer online monitoring equipment, this equipment is for monitoring the safe condition of transformer, equipment comprises host computer and oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device and sleeve pipe on-Line Monitor Device, oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device are connected with transformer with the input end of sleeve pipe on-Line Monitor Device, and output terminal is connected with host computer.Compared with prior art, the utility model has can reflect the advantages such as transformer safety state comprehensively.

Description

A kind of transformer online monitoring equipment
Technical field
The utility model relates to electric power safety field, especially relates to a kind of transformer online monitoring equipment.
Background technology
Intelligent transformer is the core component of intelligent substation.Transformer online monitoring equipment ensures that transformer normally works and estimates the loss of equipment to set up the important evidence of rational turnaround plan.Transformer is in long-time running, and the fault caused because of a variety of causes and accident can not be avoided completely.Therefore to the correct diagnosis of fault with predict that just there is more urgent practicality and importance early.But the fault diagnosis of transformer is a very complicated problem, and many factors such as transformer capacity, electric pressure, insulating property, working environment, history run even product of different manufacturers etc. all can have an impact to diagnostic result.
Such as application number be 201320514741.2 Chinese patent disclose a kind of transformer online monitoring equipment, comprise transformer core, the earthing bar of core of reactor and folder, transformer core, the earthing bar of core of reactor and folder is respectively equipped with Leakage Current sensor, leakage current sensor and data acquisition cabinet are electrically connected, buzzer siren is established in data acquisition cabinet, data acquisition cabinet is connected by cable with between serial port networked server, serial port networked server is connected with monitoring server terminal via router, monitoring server terminal is provided with buzzer siren.But this utility model is only monitored core current, therefore can only reflect its performance state from a certain side, comprehensively can not understand the current safe condition of transformer.
Summary of the invention
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of transformer online monitoring equipment that comprehensively can reflect transformer safety state is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of transformer online monitoring equipment, this equipment is for monitoring the safe condition of transformer, described equipment comprises host computer and oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device and sleeve pipe on-Line Monitor Device, described oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device are connected with transformer with the input end of sleeve pipe on-Line Monitor Device, and output terminal is connected with host computer.
Described transformer comprises oily closed circuit, transformer core, transformation wall shell and bushing shell for transformer, described oily closed circuit and transformer core are located in transformation wall shell, described sleeve pipe is located on transformation wall shell, described oil chromatogram analysis device is connected with oily closed circuit, described iron core grounding current monitoring device is connected with transformer core, described local discharge on-line monitoring device is located in transformation wall shell, and described sleeve pipe on-Line Monitor Device is connected with bushing shell for transformer.
Described oily closed circuit comprises gets fuel tap and oil return valve, described in get fuel tap and oil return valve is all located on transformation wall shell, described oil chromatogram analysis device respectively with get fuel tap and oil return valve is connected.
Described iron core grounding current monitoring device is Zero flux CT.
Described oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device are connected with host computer respectively by RS485 or CAN2.0 bus with sleeve pipe on-Line Monitor Device.
Described host computer comprises data sink, controller and alarm, the input end of described data sink is connected with oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device and sleeve pipe on-Line Monitor Device, output terminal is connected with controller, and described controller is also connected with alarm.
Compared with prior art, the utility model has the following advantages:
1) function of the online oil chromatogram analysis device of this system integration, iron core grounding current monitoring device, partial discharge monitoring device, sleeve pipe on-Line Monitor Device, compact conformation, cost are low, precision is high.
2) adopt RS485/CAN2.0 bus communication, data transmission credibility is high.
3), when breaking down, controller can control alarm equipment alarm.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is for getting fuel tap and oil return valve installation site schematic diagram;
Wherein: 1, host computer, 2, oil chromatogram analysis device, 3, iron core grounding current monitoring device, 4, local discharge on-line monitoring device, 5, sleeve pipe on-Line Monitor Device, 11, data sink, 12, controller, 13, alarm, 61, oily closed circuit, 62, transformer core, 63, transformation wall shell, 64, bushing shell for transformer, 611, get fuel tap, 612, oil return valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
A kind of transformer online monitoring equipment, as shown in Figure 1, this equipment is for monitoring the safe condition of transformer, equipment comprises host computer 1 and oil chromatogram analysis device 2, iron core grounding current monitoring device 3, local discharge on-line monitoring device 4 and sleeve pipe on-Line Monitor Device 5, oil chromatogram analysis device 2, iron core grounding current monitoring device 3, local discharge on-line monitoring device 4 are connected with transformer with the input end of sleeve pipe on-Line Monitor Device 5, and output terminal is connected with host computer 1.
As shown in Figure 1, transformer comprises oily closed circuit 61, transformer core 62, transformation wall shell 63 and bushing shell for transformer 64, oil closed circuit 61 and transformer core 62 are located in transformation wall shell 63, sleeve pipe 64 is located on transformation wall shell 63, oil chromatogram analysis device 2 is connected with oily closed circuit 61, iron core grounding current monitoring device 3 is connected with transformer core 62, and local discharge on-line monitoring device 4 is located in transformation wall shell 63, and sleeve pipe on-Line Monitor Device 5 is connected with bushing shell for transformer 64.
As shown in Figure 2, oily closed circuit 61 comprises gets fuel tap 611 and oil return valve 612, gets fuel tap 611 and oil return valve 612 is all located on transformation wall shell 63, oil chromatogram analysis device 2 respectively with get fuel tap 611 and oil return valve 612 is connected.
Oil chromatogram analysis device 2, from transformer oil closed circuit 61, extract oil sample by getting fuel tap 611, degassed after again send oil sample back to transformer by oil return valve 612 again.The gas deviate from from oil draws each characteristic gas content and change through stratographic analysis, analyzes exception and the fault progression trend of inside transformer with this.
Iron core grounding current monitoring device 3 is Zero flux CT, and it utilizes the current situation on Zero flux CT detection transformer core 62 ground wire, when discovery electric current exceeds standard, carries out fault diagnosis in conjunction with oil chromatogram analysis device 2.
When local discharge on-line monitoring device 4 utilizes inside transformer generation shelf depreciation, outwards will give off the principle of superfrequency electromagnetic wave (UHF), whether there is (UHF) signal by monitoring inside transformer, can judge whether inside transformer exists shelf depreciation.
Sleeve pipe on-Line Monitor Device 5 is insulation status and the capacitance of being monitored bushing shell for transformer 64 by monitoring bushing shell for transformer 64 end shield electric current.
Oil chromatogram analysis device 2, iron core grounding current monitoring device 3, local discharge on-line monitoring device 4 are connected with host computer 1 respectively by RS485 or CAN2.0 bus with sleeve pipe on-Line Monitor Device 5, and the Monitoring Data real-time online of collection is uploaded to host computer 1.
As shown in Figure 1, host computer 1 comprises data sink 11, controller 12 and alarm 13, the input end of data sink 11 is connected with oil chromatogram analysis device 2, iron core grounding current monitoring device 3, local discharge on-line monitoring device 4 and sleeve pipe on-Line Monitor Device 5, output terminal is connected with controller 12, and controller 12 is also connected with alarm 13.

Claims (6)

1. a transformer online monitoring equipment, this equipment is for monitoring the safe condition of transformer, it is characterized in that, described equipment comprises host computer and oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device and sleeve pipe on-Line Monitor Device, described oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device are connected with transformer with the input end of sleeve pipe on-Line Monitor Device, and output terminal is connected with host computer.
2. a kind of transformer online monitoring equipment according to claim 1, it is characterized in that, described transformer comprises oily closed circuit, transformer core, transformation wall shell and bushing shell for transformer, described oily closed circuit and transformer core are located in transformation wall shell, described sleeve pipe is located on transformation wall shell, described oil chromatogram analysis device is connected with oily closed circuit, described iron core grounding current monitoring device is connected with transformer core, described local discharge on-line monitoring device is located in transformation wall shell, and described sleeve pipe on-Line Monitor Device is connected with bushing shell for transformer.
3. a kind of transformer online monitoring equipment according to claim 2, it is characterized in that, described oily closed circuit comprises gets fuel tap and oil return valve, described in get fuel tap and oil return valve is all located on transformation wall shell, described oil chromatogram analysis device respectively with get fuel tap and oil return valve is connected.
4. a kind of transformer online monitoring equipment according to claim 2, is characterized in that, described iron core grounding current monitoring device is Zero flux CT.
5. a kind of transformer online monitoring equipment according to claim 1, it is characterized in that, described oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device are connected with host computer respectively by RS485 or CAN2.0 bus with sleeve pipe on-Line Monitor Device.
6. a kind of transformer online monitoring equipment according to claim 1, it is characterized in that, described host computer comprises data sink, controller and alarm, the input end of described data sink is connected with oil chromatogram analysis device, iron core grounding current monitoring device, local discharge on-line monitoring device and sleeve pipe on-Line Monitor Device, output terminal is connected with controller, and described controller is also connected with alarm.
CN201420539624.6U 2014-09-18 2014-09-18 A kind of transformer online monitoring equipment Expired - Lifetime CN204115768U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420539624.6U CN204115768U (en) 2014-09-18 2014-09-18 A kind of transformer online monitoring equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420539624.6U CN204115768U (en) 2014-09-18 2014-09-18 A kind of transformer online monitoring equipment

Publications (1)

Publication Number Publication Date
CN204115768U true CN204115768U (en) 2015-01-21

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CN201420539624.6U Expired - Lifetime CN204115768U (en) 2014-09-18 2014-09-18 A kind of transformer online monitoring equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404078A (en) * 2016-11-28 2017-02-15 山东科技大学 Transformer online monitoring device
CN110221159A (en) * 2019-07-18 2019-09-10 杭州电力设备制造有限公司 A kind of fault detection method, system and the equipment of the transformer based on iron core leakage field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106404078A (en) * 2016-11-28 2017-02-15 山东科技大学 Transformer online monitoring device
CN110221159A (en) * 2019-07-18 2019-09-10 杭州电力设备制造有限公司 A kind of fault detection method, system and the equipment of the transformer based on iron core leakage field

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20150121