CN208026819U - Dry-type reactor interturn insulation measuring device with electricity - Google Patents
Dry-type reactor interturn insulation measuring device with electricity Download PDFInfo
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- CN208026819U CN208026819U CN201820195639.3U CN201820195639U CN208026819U CN 208026819 U CN208026819 U CN 208026819U CN 201820195639 U CN201820195639 U CN 201820195639U CN 208026819 U CN208026819 U CN 208026819U
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Abstract
The utility model discloses a kind of dry-type reactor interturn insulation measuring device with electricity, solves the problems, such as that the prior art cannot destroy dry-type reactor interturn insulation and turn-to-turn short circuit has occurred and carry out timely detect and diagnose.In 3-phase dry type hollow reactor（2）Underface be movably set with induction coil（10）, induction coil is provided in 3-phase dry type hollow reactor（2）A phases reactor winding or B phases reactor winding or C phase reactor windings underface, in induction coil（10）On be connected with insulated handle（9）, in insulated handle（9）On be provided with voltmeter（11）, voltmeter is and induction coil（10）It links together.If note abnormalities, it is applied on reactor using the voltage of different frequency, the curent change of comparative analysis three-phase reactor at different frequencies, verification dry-type air-core reactor whether there is turn-to-turn insulation failure.Improve the safe operation reliability of dry-type air-core reactor.
Description
Technical field
The present invention relates to a kind of turn-to-turns to widely used dry reactor in substation whether short circuit phenomenon occurs
Detection device, more particularly to a kind of device and detection carrying out live live detection to dry-type air-core reactor turn-to-turn insulation short circuit
The method of diagnosis.
Background technology
Dry-type air-core reactor belongs to perceptual device, in substation, plays a part of reactive-load compensation and filtering, uses extensively
In power supply system.Dry-type air-core reactor running environment is severe, runs outdoors throughout the year, exposes to the sun and rain and also accelerates it
The aging of insulation be easy to cause the short circuit after dry-type air-core reactor turn-to-turn insulation is destroyed, leads to burning for reactor, serious shadow
Ring the normal operation to power supply department.Dry-type air-core reactor is to use hollow-core construction, avoids reactor saturation well
The generation of phenomenon has good linear characteristic.Currently, being mainly for the detection of dry-type air-core reactor turn-to-turn insulation situation
It is carried out by infrared thermal imaging technique, this method can only be detected the surface temperature information of reactor, cannot detect
Turn-to-turn insulation situation inside to reactor, short circuit will be occurred by not having more after being destroyed to dry-type reactor interturn insulation shifts to an earlier date
Early warning cannot play the effect diagnosed in time at turn-to-turn short circuit initial stage, and then avoid burning for dry reactor.
Invention content
The present invention provides a kind of dry-type reactor interturn insulation measuring device with electricity and turn-to-turn short circuit diagnosis methods, solve
The prior art cannot destroy dry-type reactor interturn insulation and occur the skill that turn-to-turn short circuit carries out timely detect and diagnose
Art problem.
The present invention is to solve the above technical problem by the following technical programs：
A kind of dry-type reactor interturn insulation measuring device with electricity, including supporting steel frame, are provided with branch on supporting steel frame
Insulator is supportted, 3-phase dry type hollow reactor is provided in supporting insulator, in the underface of 3-phase dry type hollow reactor
It is movably set with induction coil, induction coil is provided in A phases reactor winding or the B phase reactance of 3-phase dry type hollow reactor
The underface of device coil or C phase reactor windings, it is connected with insulated handle on induction coil, is provided on insulated handle
Voltmeter, voltmeter link together with induction coil.
Induction coil is provided in telescopic hollow plastic ring, the sense stretched out from telescopic hollow plastic ring
It answers coil lead to link together with voltmeter, retractable conical umbrella stand is connected on hollow plastic ring, in retractable taper
The top of umbrella stand is connected with central insulation umbrella stem, and being movably set between central insulation umbrella stem and retractable conical umbrella stand can open
It closes conical umbrella stand and opens and closes size adjusting bracket.
It is respectively arranged with lateral wiring arm and longitudinal wiring arm in the bottom end of 3-phase dry type hollow reactor, in 3-phase dry type
The top of air reactor is provided with rain-proof shelter, and reactor lead and another is respectively arranged on 3-phase dry type hollow reactor
Reactor lead.
A kind of dry reactor turn-to-turn short circuit diagnosis method, includes the following steps：
The first step, the underface activity setting induction coil in 3-phase dry type hollow reactor, induction coil setting is existed
The underface of the A phase reactor windings of 3-phase dry type hollow reactor, connects insulated handle, in insulated handle on induction coil
Upper setting voltmeter, voltmeter and induction coil are linked together, and measure the inductive voltage value of A phase reactors；
Induction coil is maintained at the same horizontal plane by second step, be moved respectively to B phase reactor windings underface and
The underface of C phase reactor windings measures the inductive voltage value of the inductive voltage value and C phase reactors of B phase reactors respectively；
Third step, by the inductive voltage value for measuring A phase reactors, measure the inductive voltage value of B phase reactors and measure C phases
Average computation is carried out after the inductive voltage value summation of reactor, obtains three-phase induction potential detection average value；By A phase reactors
Inductive voltage value is compared with three-phase induction potential detection average value, if three-phase induction potential detection average value and A phase reactance
The ratio obtained after the difference divided by three-phase induction potential detection average value of the inductive voltage value of device is greater than or equal to 0.5%, then sentences
There are inter-turn insulations for the A phase coils to break as 3-phase dry type hollow reactor；It is calculated with same method and judges 3-phase dry type
The B phase coils and C phase coils of air reactor whether there is inter-turn insulation；
4th step, the judging result walked according to third, if being judged as the A phase coils of 3-phase dry type hollow reactor, there are circles
Between Insulation Problems when, power failure processing first is carried out to 3-phase dry type hollow reactor, then, by the A phase coils in reactor lead
Lead is linked together by a variable-frequency power sources leading-out terminal of frequency conversion testing current lead and frequency changing power device, by reactance
Another variable-frequency electric that another lead of A phase coils in device lead passes through another test lead of frequency conversion electric current and frequency changing power device
Source output terminal links together, and current transformer is arranged on frequency conversion testing current lead, and sense is connected on current transformer
Induced current tests ammeter；
5th step, the voltage signal for setting frequency changing power device to 25 hertz 300 volts of output, read induced current test
Measured reading I on ammeter25；It again sets frequency changing power device to the voltage signal of 300 hertz 300 volts of output, reads
Induced current tests reading I measured on ammeter300If 12 times of I300Subtract I25Difference divided by I25The value obtained afterwards
More than 2%, then being diagnosed as the A phase coils of 3-phase dry type hollow reactor, there are Inter-turn Short Circuit Phenomenons；With same method diagnosis B,
C phase coils whether there is Inter-turn Short Circuit Phenomenon.
The present invention effectively detects shorted-turn fault present in dry-type air-core reactor operation, by detecting in advance,
It is handled in advance, effectively prevent dry-type air-core reactor scaling loss；Detection process will not transport the safety of dry-type air-core reactor
Row causes any negative effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of measuring device with electricity of the present invention；
Fig. 2 is the induction coil configuration schematic diagram of the measuring device with electricity of the present invention；
Fig. 3 is the structural schematic diagram of the support umbrella stand of the induction coil of the measuring device with electricity of the present invention；
Connection circuit structure diagram when Fig. 4 is the turn-to-turn insulation short circuit diagnosis of the present invention.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings：
A kind of dry-type reactor interturn insulation measuring device with electricity, including supporting steel frame 7, are provided on supporting steel frame 7
Supporting insulator 8 is provided with 3-phase dry type hollow reactor 2 in supporting insulator 8, in 3-phase dry type hollow reactor 2
Underface is movably set with induction coil 10, and induction coil 10 is provided in the A phase reactor lines of 3-phase dry type hollow reactor 2
The underface of circle or B phases reactor winding or C phase reactor windings, insulated handle 9 is connected on induction coil 10, exhausted
Voltmeter 11 is provided on edge handle 9, voltmeter 11 links together with induction coil 10.
Induction coil 10 is provided in telescopic hollow plastic ring 29, is stretched from telescopic hollow plastic ring 29
The induction coil lead 22 gone out links together with voltmeter 11, and retractable conical umbrella stand is connected on hollow plastic ring 29
19, it is connected with central insulation umbrella stem 20 on the top of retractable conical umbrella stand 19, in central insulation umbrella stem 20 and retractable taper
Retractable conical umbrella stand folding size adjusting bracket 21 is movably set between umbrella stand 19；Each of retractable conical umbrella stand 19
Strip-shaped groove 25 is both provided on the medial surface of supporting rod, compartment of terrain is provided with row's pin hole 24 in strip-shaped groove 25,
The outer end of retractable conical umbrella stand folding size adjusting bracket 21 is movably arranged in strip-shaped groove 25, and outer end holding pin 23 can
The outer end that retractable conical umbrella stand is opened and closed to size adjusting bracket 21 by row's pin hole 24 is fixed；In central insulation umbrella stem 20
It is provided with another row's pin hole 26, the inner end of retractable conical umbrella stand folding size adjusting bracket 21 is provided with lantern ring 27, lantern ring
27 are socketed in central insulation umbrella stem 20, and retractable conical umbrella stand is opened and closed size by inner end fixed pin 28 by another row's pin hole 26
The inner end of adjusting bracket 21 is fixed；Reach the retractable cone of change by adjusting retractable conical umbrella stand folding size adjusting bracket 21
The opening degree of shape umbrella stand 19, to make hollow plastic ring 29 adapt to the line of induction of different size of 3-phase dry type hollow reactor 2
Circle.
It is respectively arranged with lateral wiring arm 3 and longitudinal wiring arm 4 in the bottom end of 3-phase dry type hollow reactor 2, in three-phase
The top of dry-type air-core reactor 2 is provided with rain-proof shelter 1, and being respectively arranged with reactor on 3-phase dry type hollow reactor 2 draws
Line 5 and another reactor lead 6.
A kind of dry reactor turn-to-turn short circuit diagnosis method, includes the following steps：
The first step, the underface activity setting induction coil 10 in 3-phase dry type hollow reactor 2, induction coil 10 is set
It sets in the underface of the A phase reactor windings of 3-phase dry type hollow reactor 2, insulated handle 9 is connected on induction coil 10,
Voltmeter 11 is set on insulated handle 9, voltmeter 11 and induction coil 10 are linked together, the induction of A phase reactors is measured
Voltage value VA；
Induction coil 10 is maintained at the same horizontal plane by second step, is moved respectively to the underface of B phase reactor windings
With the underface of C phase reactor windings, the induced voltage of inductive voltage value VB and C the phase reactor of B phase reactors is measured respectively
Value VC；
Third step, by the inductive voltage value VA for measuring A phase reactors, measure inductive voltage value VB and the survey of B phase reactors
Average computation is carried out after obtaining the inductive voltage value VC summations of C phase reactors, obtains three-phase induction potential detection average value；By A phases
The inductive voltage value VA of reactor is compared with three-phase induction potential detection average value, if three-phase induction potential detection average value
It is more than or waits with the ratio obtained after the difference divided by three-phase induction potential detection average value of the inductive voltage value VA of A phase reactors
In 0.5%, then being judged as the A phase coils of 3-phase dry type hollow reactor 2, there are inter-turn insulations；It is calculated simultaneously with same method
The B phase coils and C phase coils for judging 3-phase dry type hollow reactor 2 whether there is inter-turn insulation；
4th step, the judging result walked according to third, if being judged as, the A phase coils of 3-phase dry type hollow reactor 2 exist
When inter-turn insulation, power failure processing first is carried out to 3-phase dry type hollow reactor 2, then, by the A phases in reactor lead 5
Coil lead is connected to by frequency conversion testing current lead 17 and a variable-frequency power sources leading-out terminal 14 of frequency changing power device 12
Together, another lead of A phase coils in reactor lead 5 is passed through into another test lead 18 of frequency conversion electric current and frequency changing power device
12 another variable-frequency power sources leading-out terminal links together, and current transformer 15 is arranged on frequency conversion testing current lead 17,
Induced current is connected on current transformer 15 and tests ammeter 16, and it is defeated that 380 volts of three-phase is provided on frequency changing power device 12
Enter terminal 13；
5th step, the voltage signal for setting frequency changing power device 12 to 25 hertz 300 volts of output read induced current and survey
Try reading I measured on ammeter 1625；The voltage for setting frequency changing power device 12 to 300 hertz 300 volts of output again is believed
Number, read reading I measured on induced current test ammeter 16300If 12 times of I300Subtract I25Difference divided by I25Afterwards
Obtained value is more than 2%, then being diagnosed as the A phase coils of 3-phase dry type hollow reactor 2, there are Inter-turn Short Circuit Phenomenons.
The present invention can be monitored running dry-type air-core reactor, if note abnormalities, utilize different frequency
Voltage be applied on reactor, the curent change of comparative analysis three-phase reactor at different frequencies, verification dry-type hollow electricity
Anti- device whether there is turn-to-turn insulation failure；The measuring device with electricity of the present invention can effectively detect the turn-to-turn of dry-type air-core reactor
Insulation Problems are handled by finding failure in advance, improve the safe operation reliability of dry-type air-core reactor in advance.
Claims (3)
1. a kind of dry-type reactor interturn insulation measuring device with electricity, including supporting steel frame（7）, in supporting steel frame（7）Upper setting
There is supporting insulator（8）, in supporting insulator（8）On be provided with 3-phase dry type hollow reactor（2）, which is characterized in that three
Coherent air reactor（2）Underface be movably set with induction coil（10）, induction coil（10）It is relevant to be provided in three
Formula air reactor（2）A phases reactor winding or B phases reactor winding or C phase reactor windings underface, incuding
Coil（10）On be connected with insulated handle（9）, in insulated handle（9）On be provided with voltmeter（11）, voltmeter（11）It is and sense
Answer coil（10）It links together.
2. a kind of dry-type reactor interturn insulation measuring device with electricity according to claim 1, which is characterized in that the line of induction
Circle（10）It is provided in telescopic hollow plastic ring（29）In, from telescopic hollow plastic ring（29）The induction of middle stretching
Coil lead（22）With voltmeter（11）It links together, in hollow plastic ring（29）On be connected with retractable conical umbrella stand
（19）, in retractable conical umbrella stand（19）Top be connected with central insulation umbrella stem（20）, in central insulation umbrella stem（20）With can
Open and close conical umbrella stand（19）Between be movably set with retractable conical umbrella stand folding size adjusting bracket（21）.
3. a kind of dry-type reactor interturn insulation measuring device with electricity according to claim 2, which is characterized in that in three-phase
Dry-type air-core reactor（2）Bottom end be respectively arranged with lateral wiring arm（3）With longitudinal wiring arm（4）, in 3-phase dry type hollow
Reactor（2）Top be provided with rain-proof shelter（1）, in 3-phase dry type hollow reactor（2）On be respectively arranged with reactor lead
（5）With another reactor lead（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195639.3U CN208026819U (en) | 2018-02-05 | 2018-02-05 | Dry-type reactor interturn insulation measuring device with electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820195639.3U CN208026819U (en) | 2018-02-05 | 2018-02-05 | Dry-type reactor interturn insulation measuring device with electricity |
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| Publication Number | Publication Date |
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| CN208026819U true CN208026819U (en) | 2018-10-30 |
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| CN201820195639.3U Active CN208026819U (en) | 2018-02-05 | 2018-02-05 | Dry-type reactor interturn insulation measuring device with electricity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226699A (en) * | 2018-02-05 | 2018-06-29 | 国网山西省电力公司电力科学研究院 | Dry-type reactor interturn insulation measuring device with electricity and checkout and diagnosis method |
-
2018
- 2018-02-05 CN CN201820195639.3U patent/CN208026819U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226699A (en) * | 2018-02-05 | 2018-06-29 | 国网山西省电力公司电力科学研究院 | Dry-type reactor interturn insulation measuring device with electricity and checkout and diagnosis method |
| CN108226699B (en) * | 2018-02-05 | 2023-07-18 | 国网山西省电力公司电力科学研究院 | Dry-type reactor turn-to-turn insulation live detection device and detection diagnosis method |
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