CN204214972U - A kind of magnet controlled reactor on-line monitoring system - Google Patents

A kind of magnet controlled reactor on-line monitoring system Download PDF

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Publication number
CN204214972U
CN204214972U CN201420741358.5U CN201420741358U CN204214972U CN 204214972 U CN204214972 U CN 204214972U CN 201420741358 U CN201420741358 U CN 201420741358U CN 204214972 U CN204214972 U CN 204214972U
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China
Prior art keywords
monitoring system
sensor
magnet controlled
controlled reactor
line
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CN201420741358.5U
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聂德鑫
卢文华
陈锋
郑浩
杜振波
蔡伟
梁嗣元
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State Grid Corp of China SGCC
Wuhan NARI Ltd
State Grid Anhui Electric Power Co Ltd
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State Grid Corp of China SGCC
Wuhan NARI Ltd
State Grid Anhui Electric Power Co Ltd
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Abstract

The utility model relates to a kind of magnet controlled reactor on-line monitoring system, comprise HFCT monitoring system, monitoring system put in office, vibration monitor system, temperature monitoring system and oil chromatography monitoring system, the utility model utilizes ultrasonic Detection Method to judge the inner shelf depreciation of reactor; Built-in thermal resistance is utilized to detect magnet controlled reactor internal temperature; Utilize oil chromatography on-line monitoring system, HFCT on-line monitoring system, system of condition monitoring, current detecting system to intersect and judge magnet controlled reactor fault type.

Description

A kind of magnet controlled reactor on-line monitoring system
Technical field
The utility model belongs to power industry T & D Technology field, specifically a kind of magnet controlled reactor on-line monitoring system.
Background technology
Magnet controlled reactor is a kind of comparatively novel reactive power compensator, is mainly used in the function such as reactive-load compensation and limiting short-circuit current in electrical network, is used for the inrush phenomenon of suppression capacitor group and switching overvoltage.Now in the operational process of electrical network; people's focusing on the such as equipment such as transformer, switch mainly protection, often have ignored the protection of reactor, when reactor breaks down; likely cause the damage of equipment set, time serious, even can affect the safe and stable operation of whole electrical network.
Magnet controlled reactor has the advantages such as corresponding speed is fast, energy-efficient, but the on-line monitoring equipment of the domestic maturation of the such as equipment such as transformer, GIS relatively, its trouble-saving such as fault detect and on-line monitoring means are not also used widely.
The utility model, for magnet controlled reactor, is invented a kind of on-line monitoring equipment going for magnet controlled reactor, and is judged its running status, ensures the safe and stable operation of magnet controlled reactor, ensures power grid security.
Summary of the invention
The purpose of this utility model be to provide a kind of can the equipment of performance of the aspect such as Real-Time Monitoring magnet controlled reactor insulating property, temperature, vibration, thus provide magnet controlled reactor running state data for operation maintenance personnel, and judge the magnet controlled reactor on-line monitoring system of the state of magnet controlled reactor, to overcome the deficiencies in the prior art.
To achieve these goals, the technical scheme that the utility model adopts is:
A kind of magnet controlled reactor on-line monitoring system, comprise host computer and HFCT monitoring system, be characterized in: described HFCT monitoring system comprises sensor body, sensor junction draw-in groove, DOL Data Output Line and circuit system, described sensor body is that two parts are spliced, sensor junction draw-in groove is fixed on control iron core of electric reactor ground wire, sensor body is fixed by sensor junction draw-in groove and is enclosed within magnet controlled reactor iron core grounding line, described circuit system input end is connected with the output terminal of sensor, the output terminal of described circuit system is connected with host computer by DOL Data Output Line.
The described on-line monitoring system also office of comprising puts monitoring system, vibration monitor system, temperature monitoring system and oil chromatography monitoring system, and the output of described each system is all connected with described host computer.
FERRITE CORE selected by described sensor magnetic core.
Described circuit system comprises self-induction coil, equivalent resistance, equivalent stray capacitance, turn-to-turn stray capacitance and integrating resistor, one end of the output of described sensor is connected with one end of DOL Data Output Line by equivalent stray capacitance, and the self-induction coil of series connection and the two ends of equivalent resistance are connected in parallel on the two ends of effect stray capacitance; The other end of the output of described sensor is connected with the other end of DOL Data Output Line, and described turn-to-turn stray capacitance and integrating resistor are connected in parallel on the two ends of DOL Data Output Line respectively.
Of the present utility modelly to be embodied in: utilize ultrasonic Detection Method to judge the inner shelf depreciation of reactor; Built-in thermal resistance is utilized to detect magnet controlled reactor internal temperature; Utilize oil chromatography on-line monitoring system, HFCT on-line monitoring system, system of condition monitoring, current detecting system to intersect and judge magnet controlled reactor fault type.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is sensor construction figure in the utility model HFCT monitoring system.
Fig. 3 is the circuit diagram of circuit system in the utility model HFCT monitoring system.
Fig. 4 is vibration monitor system sensor construction figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model system architecture as shown in Figure 1, is divided into HFCT on-line monitoring system, office is placed on line monitoring system, system of condition monitoring, temperature online monitoring system, oil chromatography on-line monitoring system.
In the utility model, HFCT monitoring system sensor construction and circuit system are as shown in Figure 2 and Figure 3.Wherein 21 is sensor body; 22 is sensor junction draw-in groove; 23 is Transformer Core Grounding line; 24 is DOL Data Output Line.31 is transformer coil self-induction; 32 is system equivalent resistance; 33 is the equivalent stray capacitance to shielding; 34 is turn-to-turn stray capacitance; 35 is integrating resistor; 36 is current sensor.
Should be noted when installing HFCT on-line monitoring system, 21 sensors are that two parts are spliced, and can make sensor sleeve like this on 23 Transformer Core Grounding lines.Must not the such as interference source such as mobile phone, intercom in half meter around sensor body, to 21 sensors, shielding boxs can be installed if desired.22 is sensor junction draw-in groove, and it act as fixes 21 sensor two parts, can be fixed on 23 magnet controlled reactor iron core grounding lines.24 is DOL Data Output Line, and its effect is that the data detected are transferred to master system.
FERRITE CORE selected by sensor magnetic core.
System of condition monitoring sensor adopts optical fibre vibration sensor, it mainly says that the light that light source sends sends into modulator zone through optical fiber, in modulator zone, the light that extraneous vibration parameter enters modulator zone interacts, the intensity of light, frequency, phase place, polarization etc. are changed and becomes modulated flashlight, then send into photo-detector, (FBG) demodulator and obtain tested vibratory output through optical fiber.
Partial discharge monitoring system uses monitoring ultrasonic method.Always along with acoustic emission phenomenon during shelf depreciation, its sound wave produced has scattering in each frequency range.It is generally acknowledged, after shelf depreciation occurs, due to the effect of electric field force or the effect of pressure, the process that the gas discharging position can expand and shrink, will cause local volume to change.The change of this volume, produces dilatational wave in outside, namely produces sound wave.About a few kHz of the frequency of sound wave that usual shelf depreciation produces in gas, and the frequency of sound wave produced in liquid, solid is about tens to hundreds of kHz.The ultrasonic signal produced by detecting shelf depreciation judges that the method for shelf depreciation is called the ultrasonic Detection Method of shelf depreciation.Detecting of ultrasound wave shelf depreciation, the frequency range that should avoid interference and be object with high-frequency.But frequency is higher, the decay of sound wave in transport process is very large, and the frequency that therefore ultrasound wave shelf depreciation detects generally arrives hundreds of kHz tens of.The centre frequency of typical ultrasonic sensor, greatly near 40kHz, is fixed on the shell of detected electric equipment usually, utilizes piezoelectric crystal as acoustic-electric conversion elements.When its inner generation electric discharge, when the acoustic signals (mainly ultrasonic part) that shelf depreciation produces is delivered to electric equipment surface, by ultrasonic sensor, ultrasonic signal is converted to electric signal, and passes to acquisition system after amplifying further, to reach the object detecting shelf depreciation.Simultaneously, by arranging multiple calibrate AE sensor composition detection and localization array on electric equipment surface, the time difference arriving each sensor by calculating acoustic emission signal just can position the three-dimensional position at electric discharge position, thus judges the degree of injury of electric discharge to electric equipment.The most obvious advantage of ultrasound examination does not have strong electromagnetic interference (EMI), but the free particles in electric equipment may cause interference to testing result to the collision of cabinet wall; Meanwhile, due to electric equipment built-in electrical insulation complex structure, ultrasonic attenuation is serious, and the electric discharge occurred at insulating inner then likely cannot be detected.It also can be outside that ultrasonic local discharge sensor can be placed in magnet controlled reactor inside, placement location be from the positions such as magnet controlled reactor lead-in wire, folder relatively close to fuel tank on.Generally, number of sensors can not be less than 4.
Oil chromatography on-line monitoring system adopts the oil chromatography pick-up unit meeting national standard.Mainly can detect the gases such as hydrogen in oil, carbon monoxide, methane, carbon dioxide, ethane, ethene, acetylene.
Host computer of the present utility model comprises digital processing unit, and digital processing unit is connected to A/D converter, CAN interface, 485 interfaces, and digital processing unit connects Ethernet interface, and digital processing unit is connected with total Surveillance center by RS485 bus.
The breakdown judge foundation of the utility model to magnet controlled reactor is as follows:
1, when local discharge module discovery magnet controlled reactor has local discharge signal, contrast oil chromatography on-line monitoring, as found, acetylene content increases, then can judge that this reactor has shelf depreciation to produce.As not then being divided into two kinds of situations below in two:
1) when local discharge module finds that magnet controlled reactor has Partial discharge signal, but in oil chromatography, acetylene content does not increase, and the vibration data of vibration module monitoring has larger change, then may be that reactor inner clamps gripping member occurs to loosen.
2) when local discharge module finds that reactor has Partial discharge signal, but acetylene content does not increase in oil chromatography, and the vibration data not larger change of vibration module monitoring, then may be external disturbance, operation maintenance personnel needs to carry out ELIMINATION OF ITS INTERFERENCE work at reactor periphery
2, HFCT on-line monitoring system supplementing and should just, not advise carrying out fault type definition separately to it only as partial discharge monitoring system and oil chromatography monitoring system.And only use when other module monitors magnet controlled reactors break down.
3, when temperature monitoring system finds magnet controlled reactor temperature anomaly, concrete fault type needs reference oil chromatogram monitoring module, the inner carbon element content of main basis for estimation oil chromatography.When carbon element content increases, can determine that reactor temperature anomaly position has been in insulating board parcel position; As do not found, carbon element content increases and network load does not significantly adjust, then can be judged as that the naked metal position of reactor (as lead-in wire etc.) temperature raises.
The content be not described in detail in this instructions belongs to the known prior art of professional and technical personnel in the field.

Claims (4)

1. a magnet controlled reactor on-line monitoring system, comprise host computer and HFCT monitoring system, it is characterized in that: described HFCT monitoring system comprises sensor body, sensor junction draw-in groove, DOL Data Output Line and circuit system, described sensor body is that two parts are spliced, sensor junction draw-in groove is fixed on control iron core of electric reactor ground wire, sensor body is fixed by sensor junction draw-in groove and is enclosed within magnet controlled reactor iron core grounding line, described circuit system input end is connected with the output terminal of sensor, the output terminal of described circuit system is connected with host computer by DOL Data Output Line.
2. magnet controlled reactor on-line monitoring system as claimed in claim 1, it is characterized in that: the described on-line monitoring system also office of comprising puts monitoring system, vibration monitor system, temperature monitoring system and oil chromatography monitoring system, and the output of described each system is all connected with described host computer.
3. magnet controlled reactor on-line monitoring system as claimed in claim 1, is characterized in that: FERRITE CORE selected by described sensor magnetic core.
4. magnet controlled reactor on-line monitoring system as claimed in claim 1, it is characterized in that: described circuit system comprises self-induction coil, equivalent resistance, equivalent stray capacitance, turn-to-turn stray capacitance and integrating resistor, one end of the output of described sensor is connected with one end of DOL Data Output Line by equivalent stray capacitance, and the self-induction coil of series connection and the two ends of equivalent resistance are connected in parallel on the two ends of effect stray capacitance; The other end of the output of described sensor is connected with the other end of DOL Data Output Line, and described turn-to-turn stray capacitance and integrating resistor are connected in parallel on the two ends of DOL Data Output Line respectively.
CN201420741358.5U 2014-12-01 2014-12-01 A kind of magnet controlled reactor on-line monitoring system Active CN204214972U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107656226A (en) * 2017-09-05 2018-02-02 四川大学 HFCT electrical parameter test devices and method of testing based on transmission coefficient
CN108088909A (en) * 2017-12-11 2018-05-29 江西理工大学 A kind of highly integrated acoustic emission in rock body sensor of high sensitivity
CN109490670A (en) * 2018-11-30 2019-03-19 河海大学 A kind of high-voltage shunt reactor state on_line monitoring system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107656226A (en) * 2017-09-05 2018-02-02 四川大学 HFCT electrical parameter test devices and method of testing based on transmission coefficient
CN107656226B (en) * 2017-09-05 2019-09-24 四川大学 HFCT electrical parameter test device and test method based on transmission coefficient
CN108088909A (en) * 2017-12-11 2018-05-29 江西理工大学 A kind of highly integrated acoustic emission in rock body sensor of high sensitivity
CN109490670A (en) * 2018-11-30 2019-03-19 河海大学 A kind of high-voltage shunt reactor state on_line monitoring system

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