CN207198290U - A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision - Google Patents

A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision Download PDF

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Publication number
CN207198290U
CN207198290U CN201721220920.XU CN201721220920U CN207198290U CN 207198290 U CN207198290 U CN 207198290U CN 201721220920 U CN201721220920 U CN 201721220920U CN 207198290 U CN207198290 U CN 207198290U
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China
Prior art keywords
style
circuit
turn
baking oven
pressure
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Expired - Fee Related
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CN201721220920.XU
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Chinese (zh)
Inventor
徐光盐
王永红
刘军政
刘涛
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN201721220920.XU priority Critical patent/CN207198290U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model belongs to reactor turn-to-turn insulation technical field, more particularly to a kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision.Including:Baking oven, the baking oven is internally provided with style to be detected, the style high-pressure side of style is connected with the bottom of high pressure connecting rod, high pressure connecting rod is connected after passing through baking oven with the circuit high-pressure side of experimental circuit, the outside of described high pressure connecting rod is provided with insulating sleeve, the style low-pressure end of described style is connected by wire and the circuit low-pressure end of experimental circuit, the baking oven is connected with console, thus structure can be while experimental circuit applies voltage to style both ends and tested, change the temperature of style by baking oven, and then solve the problems, such as that existing pulse oscillating breakdown test can not at different temperatures carry out and can not obtain the experimental result under different temperatures.

Description

A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision
Technical field
The utility model belongs to reactor turn-to-turn insulation technical field, more particularly to a kind of turn-to-turn insulation breakdown voltage temperature Characteristic experimental apparatus.
Background technology
Dry type hollow shunt reactor as reactive power compensator important component is in power industry and power train It is widely used in system user.But nearly 2 years reactor Frequent Accidents, majority are by coil insulation breakdown or Temperature Distribution Inequality causes, therefore turn-to-turn insulation breakdown voltage to reactor and the relation of temperature are studied, to power system at this stage The problem of and the development in future serve vital effect.At present to reactor turn-to-turn insulation impulse hunting breakdown test It is that sample is punctured using single pulse oscillation generator, can not realizes and breakdown examination is carried out to sample at different temperatures Test, it is impossible to obtain temperature with breakdown voltage relation so as to effectively avoid the accident in reactor actual motion.
Utility model content
It has been given below on brief overview of the present utility model, to provide on some sides of the present utility model The basic comprehension in face.It should be understood to that this general introduction is not on exhaustive general introduction of the present utility model.It is not intended to Crucial or pith of the present utility model is determined, nor intended limitation the scope of the utility model.Its purpose be only with Simplified form provides some concepts, to be used as the preamble in greater detail discussed later.
In consideration of it, the utility model provides a kind of simple in construction, reasonable in design, style temperature can be controlled by baking oven, Voltage is applied to style by pulse oscillating generator, can not be at different temperatures at least to solve existing pulse oscillating breakdown test Progress the problem of.
The technical solution of the utility model:
A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision, including:Baking oven, being internally provided with for the baking oven are treated Detect style, the style high-pressure side of style be connected with the bottom of high pressure connecting rod, high pressure connecting rod pass through after baking oven with test it is electric The circuit high-pressure side connection on road, the outside of described high pressure connecting rod is provided with insulating sleeve, the style low pressure of described style End is connected by wire and the circuit low-pressure end of experimental circuit, and the baking oven is connected with console.
Further, described experimental circuit includes adjustable transformer T1, and adjustable transformer T1 output end and boosting become Depressor T2 connections, the high-pressure side of step-up transformer T2 outputs, which has been sequentially connected in series high voltage protective resistance R1, silicon stack D, frequency, to control ball Circuit high-pressure side, the low-pressure end connection circuit low pressure of step-up transformer T2 outputs are connected after gap discharge switch G1 and protective resistance R End, the low-pressure end between the silicon stack D and the controllable type sphere gap discharge switch G1 of frequency with step-up transformer T2 outputs are connected with pulse Capacitor C, impulse capacitor C both ends are parallel with voltage detecting circuit, and voltage detecting circuit includes the resistance R2 and electricity of series connection Flow table, the low-pressure end between the controllable type sphere gap discharge switch G1 and protective resistance R of frequency with step-up transformer T2 outputs are connected There is inductor L, inductor L both ends are parallel with ground protection switch K1.
Further, the style low-pressure end is connected by the housing of wire and baking oven, is provided with and is connect on the housing of baking oven Ground terminal.
The beneficial effects of the utility model are:
1) the utility model baking oven the style to be detected that is internally provided with, the style high-pressure side of style and experimental circuit Circuit high-pressure side is connected, and the style low-pressure end of style is connected by wire and the circuit low-pressure end of experimental circuit, and thus structure can While experimental circuit applies voltage to style both ends and tested, to change the temperature of style by baking oven, and then solve The problem of existing pulse oscillating breakdown test can not carried out at different temperatures.
2) baking oven of the present utility model is connected with console, and the temperature in baking oven can be accurately controlled by console, with The influence to experimental result under different temperatures is obtained, solving existing pulse oscillating breakdown test can not obtain under different temperatures Experimental result the problem of.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision;
Fig. 2 is the structural representation of the experimental circuit in Fig. 1;
In figure:1- circuit high-pressure sides;2- baking ovens;3- style high-pressure sides;4- style low-pressure ends;5- insulating sleeves;6- is controlled Platform;7- circuit low-pressure ends.
Embodiment
Below with reference to accompanying drawing, the utility model is described in detail:
Embodiment one
With reference to shown in Fig. 1, a kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision disclosed in the present embodiment, including: Baking oven 2, baking oven 2 are internally provided with style to be detected, and the style high-pressure side 3 of style is connected with the bottom of high pressure connecting rod, high Pressure connecting rod is connected after passing through baking oven 2 with the circuit high-pressure side 1 of experimental circuit, and the outside of high pressure connecting rod is provided with insulating sleeve 5, the style low-pressure end 4 of style is connected by the circuit low-pressure end 7 of wire and experimental circuit, and baking oven 2 is connected with console 6.
Pulse voltage is provided for the both ends of style by experimental circuit, changes the temperature of style by baking oven 2, passes through control The design temperature of platform 6, to obtain style breakdown test data at such a temperature, and then it is real to solve existing pulse oscillating breakdown The problem of reconciliation can not obtain the experimental result under different temperatures can not be carried out at different temperatures by testing.
Embodiment two
Present embodiment be on the basis of embodiment one, with reference to shown in Fig. 2, further, experimental circuit bag Adjustable transformer T1 is included, adjustable transformer T1 output end is connected with step-up transformer T2, the high pressure of step-up transformer T2 outputs End connects circuit after being sequentially connected in series high voltage protective resistance R1, silicon stack D, frequency controllable type sphere gap discharge switch G1 and protective resistance R High-pressure side 1, the low-pressure end connection circuit low-pressure end 7 of step-up transformer T2 outputs, silicon stack D and the controllable type sphere gap discharge switch G1 of frequency Between with the low-pressure ends of step-up transformer T2 outputs be connected with impulse capacitor C, impulse capacitor C both ends are parallel with voltage inspection Slowdown monitoring circuit, voltage detecting circuit include the resistance R2 and ammeter of series connection, frequency controllable type sphere gap discharge switch G1 and protective resistance R Between with the low-pressure ends of step-up transformer T2 outputs be connected with inductor L, inductor L both ends are parallel with ground protection switch K1。
Further, style low-pressure end 4 is connected by wire with the housing of baking oven 2, and ground connection is provided with the housing of baking oven 2 End.
By the resistance R2 and ammeter to be connected in voltage detecting circuit, the electric current passed through, and electricity are obtained by ammeter R2 computing the resistor value voltage is hindered, circuit is protected by earth terminal.Breakdown test under pulse voltage is carried out to sample, by In tested sample be wire turn structure, so in order to be reliably formed waveform, it is necessary to and meet an inductance L, in order to protect electricity Road concatenates a protective resistance again on wire turn circuit, and in order to ensure that magnitude of voltage is fully fallen on sample, protective resistance value can not Excessive, for shunt inductance L to realize oscillating voltage, R is protective resistance.The baking oven of the said equipment and controllable temperature is combined to one Rise, form high-frequency impulse vibration turn-to-turn insulation breakdown test platform.
Above example is the exemplary illustration to this patent, does not limit its protection domain, people in the art Member can also be changed to its part, as long as no the Spirit Essence beyond this patent, all in the protection domain of this patent.

Claims (3)

1. a kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision, including:Baking oven (2), it is characterised in that the baking oven (2) be internally provided with style to be detected, the style high-pressure side (3) of style is connected with the bottom of high pressure connecting rod, high pressure connection Bar is connected with the circuit high-pressure side (1) of experimental circuit afterwards through baking oven (2), and the outside of described high pressure connecting rod is provided with insulation Sleeve pipe (5), the style low-pressure end (4) of described style are connected by wire and the circuit low-pressure end (7) of experimental circuit, the baking Case (2) is connected with console (6).
2. a kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision according to claim 1, it is characterised in that described Experimental circuit include adjustable transformer T1, adjustable transformer T1 output end is connected with step-up transformer T2, step-up transformer The high-pressure side of T2 outputs has been sequentially connected in series the controllable type sphere gap discharge switch G1 of high voltage protective resistance R1, silicon stack D, frequency and protective resistance Circuit high-pressure side (1), the low-pressure end connection circuit low-pressure end (7) of step-up transformer T2 outputs, the silicon stack D and frequency are connected after R Low-pressure end between the controllable type sphere gap discharge switch G1 of rate with step-up transformer T2 outputs is connected with impulse capacitor C, pulsed capacitance Device C both ends are parallel with voltage detecting circuit, and voltage detecting circuit includes the resistance R2 and ammeter of series connection, and the frequency is controllable Low-pressure end between type sphere gap discharge switch G1 and protective resistance R with step-up transformer T2 outputs is connected with inductor L, inductor L Both ends be parallel with ground protection switch K1.
3. a kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision according to claim 2, it is characterised in that described Style low-pressure end (4) is connected by wire with the housing of baking oven (2), and earth terminal is provided with the housing of baking oven (2).
CN201721220920.XU 2017-09-20 2017-09-20 A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision Expired - Fee Related CN207198290U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721220920.XU CN207198290U (en) 2017-09-20 2017-09-20 A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721220920.XU CN207198290U (en) 2017-09-20 2017-09-20 A kind of turn-to-turn insulation breakdown voltage temperature characterisitic experimental provision

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CN207198290U true CN207198290U (en) 2018-04-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114184921A (en) * 2020-08-24 2022-03-15 北京科益虹源光电技术有限公司 Capacitance detection method and device under high pulse voltage and different working temperatures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114184921A (en) * 2020-08-24 2022-03-15 北京科益虹源光电技术有限公司 Capacitance detection method and device under high pulse voltage and different working temperatures

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Granted publication date: 20180406

Termination date: 20180920