CN209356664U

CN209356664U - Voltage transformer pressure resistance local discharge test device in GIS

Info

Publication number: CN209356664U
Application number: CN201822267273.9U
Authority: CN
Inventors: 张荣栋
Original assignee: JIANGSU SHENGHUA ELECTRIC CO Ltd
Current assignee: JIANGSU SHENGHUA ELECTRIC CO Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2019-09-06
Anticipated expiration: 2028-12-30

Abstract

Voltage transformer pressure resistance local discharge test device in GIS.It is related to electrical test equipment field.Provide it is a kind of it is easy to operate, result is accurate, can do pressure resistance can also make the experimental rig of partial discharge detection.Including main tank, the head and tail portion of the main tank are respectively equipped with disc insulator one and disc insulator two, the outside of the bottom of the disc insulator one is equipped with the interface one of connection transformer, the tail portion of the main tank, insulating boot one is equipped with outside disc insulator two, the main tank body is equipped with several points of tanks, the head of described point of tank, disc insulator three is fixed with the junction of main tank, the disc insulator three separates main tank and divides tank, the tube wall of described point of tank is equipped with disc insulator five, the interface two of the voltage transformer is equipped at the basin mouth of the disc insulator five.The advantages that the utility model has the accuracy for guaranteeing measurement, easy to operate, save the cost.

Description

Voltage transformer pressure resistance local discharge test device in GIS

Technical field

The utility model relates to electrical test equipment fields, and in particular to voltage transformer pressure resistance partial discharge examination in a kind of GIS Experiment device.

Background technique

GIS refers to SF6 gas insulated metal enclosed swit chgear, including breaker, disconnecting switch, earthing switch, voltage transformer, electric current Mutual inductor, arrester, bus, cable termination etc., voltage transformer are wherein important component parts, and voltage class has 110kV, 220kV, 500kV, there are also highest million volts of present grades.There are two important tests when mutual inductor dispatches from the factory, to test Whether qualified demonstrate,prove product, i.e. partial discharge and pressure test.It is in the past tested in the form of external casing, defect therein It is: 1) it is by external disturbance big, due to being open type test, because background interference (power supply disturbance, air electric jamming) is very big, only Pressure test can be done, is difficult accurately to measure accurate test product partial discharge value, just needs that expensive shielding is installed if doing big The Room；2) complex procedures often do primary test, require installation and removal casing, are filled with and recycle SF6 gas, especially three-phase Mutual inductor, primary test need such work in triplicate；3) tooling is cumbersome, different test products, corresponding different tooling.

Utility model content

The utility model in view of the above problems, provide it is a kind of it is easy to operate, result is accurate, pressure resistance can be done also can make-game Put the experimental rig of detection.

The technical solution of the utility model is: including main tank, the head and tail portion of the main tank are respectively equipped with benzvalene form insulation Son one and disc insulator two, the outside of the bottom of the disc insulator one are equipped with the interface one of connection transformer, the master Insulating boot one is equipped with outside the tail portion of tank, disc insulator two,

The main tank body is equipped with several points of tanks, and the head for dividing tank, to be fixed with benzvalene form with the junction of main tank exhausted Edge three, the disc insulator three separate main tank and divide tank, and the tube wall for dividing tank is equipped with disc insulator five, the basin Be equipped with the interface two of the voltage transformer at the basin mouth of formula insulator five, it is described divide in tank, the bottom of disc insulator three it is solid Surely have a conducting connecting bar one, it is described divide in tank, the bottom of disc insulator five is fixed with conducting connecting bar three,

The bottom of described point of tank is equipped with rotatable transmission handwheel, and the core wheel of the transmission handwheel, which is fixed with, to be protruded into point tank Insulating driving rod, being located at for the insulating driving rod divide and be fixed with the conical tooth coaxial with insulating driving rod on the end in tank Wheel one, it is described divide in tank to be equipped be adapted to angular wheel one and the angular wheel two vertical with angular wheel one, the conical tooth The center of wheel two is equipped with the wheel shaft of connection fixed thereto, and the wheel shaft is equipped with conducting connecting bar two normal thereto, described to lead The be electrically connected end of extension bar two is fixed with disc insulator four, and rotation transmission handwheel makes disc insulator four be located at vertical state When, disc insulator four is contacted with conducting connecting bar one, when disc insulator four is located at horizontality, disc insulator four and position It is contacted in the conducting block divided on top tank structure,

The conducting connecting bar three is fixed with the supporting block of angular wheel two, the branch far from the end of disc insulator five Bracer is equipped with the location hole with wheel shaft.

The conducting rod is equipped with grading ring.

One end that the conducting rod is connect with disc insulator one is cased with shielding case one, and the other end is cased with shielding case two, institute It states conducting connecting bar three and is fixed on one end of disc insulator three and be cased with shielding case three, the conducting connecting bar one is fixed on benzvalene form One end of insulator five is cased with shielding case four.

Described point of tank is one of single-phase switch tank or threephase switch tank or a variety of.

It connects and each described the conducting rod of tank is divided to be fixedly connected on link block.

The beneficial effects of the utility model are: entire test loop is in closing using the docking mode of form mouth to mouth Shell in, both safety and partial discharge background interference can very little, guaranteed the accuracy of measurement；Multi-function device, can be according to visitor Family needs to design distinct interface, and a set of equipment meets all test product demands；Easy to operate, rotation hand wheel easily realizes switch Closure disconnects；Due to being blocking test, place is not required, does not need the shielding hall to involve great expense, save the cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model,

Fig. 2 is the left view of Fig. 1,

Fig. 3 is the top view of Fig. 1,

Fig. 4 is enlarged diagram at A in Fig. 2,

Fig. 5 is the connection schematic diagram of angular wheel two in the utility model, supporting block, conducting connecting bar two；

1 is main tank in figure, and 11 be disc insulator one, and 111 be interface one, and 12 be conducting rod, and 121 be shielding case one, 122 It is shielding case two, 123 be link block, and 124 be grading ring, and 13 be disc insulator two, and 131 be insulating boot, and 132 be that extension connects Mouthful, 2 be a point tank, and 21 be disc insulator three, and 22 be disc insulator five, and 221 be interface two, and 222 be conducting connecting bar three, 223 be supporting block, and 23 be handwheel, and 231 be insulating driving rod, and 232 angular wheels one, 233 be angular wheel two, and 2331 be wheel Axis, 234 be conducting connecting bar two, and 235 be disc insulator four, and 24 be conducting block.

Specific embodiment

The utility model is illustrated with reference to the accompanying drawing.

As shown in Figs. 1-5, the utility model includes main tank 1(steel shell), the head and tail portion of the main tank 1 are set respectively There are disc insulator 1 and disc insulator 2 13, the outside of the bottom of the disc insulator 1 is equipped with connection transformer Interface 1, the tail portion of the main tank 1,2 13 outside of disc insulator be equipped with insulating boot 131,

1 body of main tank is equipped with several points of tanks 2, and the head for dividing tank 2 is fixed with basin with the junction of main tank 1 Formula insulator 3 21, the disc insulator 3 21 separate main tank 1 and divide tank 2, and the tube wall for dividing tank 2 insulate equipped with benzvalene form Son 5 22, is equipped with the interface 2 221 of the voltage transformer at the basin mouth of the disc insulator 5 22, it is described divide in tank 2, basin The bottom of formula insulator 3 21 is fixed with conducting connecting bar 1, it is described divide in tank 2, the bottom of disc insulator 5 22 is fixed There is conducting connecting bar 3 222,

The bottom of described point of tank 2 is equipped with rotatable transmission handwheel 23(handwheel and passes through pressing ring, flange and sealing element spiral shell Silk is fixed on shell, this is the prior art, and this case does not repeat), the core wheel of the transmission handwheel 23, which is fixed with, protrudes into point tank 2 Interior insulating driving rod 231, being located at for the insulating driving rod 231 divide on the end in tank 2 and are fixed with and insulating driving rod 231 Coaxial angular wheel 1, it is described divide in tank 2 to be equipped be adapted to angular wheel 1 and vertical with angular wheel 1 Angular wheel 2 233, the center of the angular wheel 2 233 are equipped with the wheel shaft 2331 of connection fixed thereto, the wheel shaft 2331 It is equipped with conducting connecting bar 2 234 normal thereto, the end of the conducting connecting bar 2 234 is fixed with disc insulator four 235, when rotation transmission handwheel makes disc insulator 4 235 be located at vertical state, disc insulator 4 235 and conducting connecting bar One 211 contacts, (vertically and horizontally refer to vertical direction and water in Fig. 2 when disc insulator 4 235 is located at horizontality herein Square to), disc insulator 4 235 be located at divide the conducting block 24 on 2 inner wall of tank to contact,

The conducting connecting bar 3 222 is fixed with the support of angular wheel 2 233 far from the end of disc insulator 5 22 Block 223, the supporting block 223 are equipped with the location hole with wheel shaft 2331.Wheel shaft 2331 is fixed in location hole by bearing.

The conducting rod 12 is equipped with grading ring 124.

One end that the conducting rod 12 is connect with disc insulator 1 is cased with shielding case 1, and the other end is cased with shielding 2 122 are covered, one end that the conducting connecting bar is fixed on disc insulator 3 21 is cased with shielding case 3 212.Each shielding case rises equal Effect is pressed, to reach better test effect.

It connects and each described the conducting rod 12 of tank 2 is divided to be fixedly connected on link block 123.

Expansion interface 132 is reserved on disc insulator 2 13, can be continued extension connection here if needed and be divided tank 2。

The application method of the utility model are as follows: in addition to tank to be used, other transmission handwheels 23 for dividing tank 2 are rotated, so that basin Formula insulator 4 235 is separated with conducting connecting bar 1, is contacted and (is disconnected with main tank 1) with conducting block 24, by voltage transformer Test product connects on interface 2 221, and SF6 gas is filled with into main tank 1, pressure gauge can be set on tank to monitor gas pressure；It will become Depressor connects on interface 1, and then transformer gradually boosts, is monitored with voltmeter, sees whether it can rise to given voltage (withstanding voltage of mutual inductor), if it can, then voltage transformer pressure resistance is qualified, if it is not, unqualified；PD meter (is becoming Have a coupling capacitor on depressor ontology, come out as soon as coupling capacitor tail end can connect a signal wire, office Fang Yi connects there)) The partial discharge quantity that test product generates is monitored, test product is unqualified if partial discharge quantity is greater than regulation discharge capacity.

Claims

Voltage transformer pressure resistance local discharge test device in 1.GIS, which is characterized in that including main tank, the head of the main tank and tail Portion is respectively equipped with disc insulator one and disc insulator two, and the outside of the bottom of the disc insulator one is equipped with connection transformation The interface one of device is equipped with insulating boot one outside the tail portion of the main tank, disc insulator two,

The main tank body is equipped with several points of tanks, and the head for dividing tank is fixed with disc insulator with the junction of main tank Three, the disc insulator three separates main tank and divides tank, and the tube wall for dividing tank is equipped with disc insulator five, and the benzvalene form is exhausted Be equipped with the interface two of the voltage transformer at the basin mouth of edge five, it is described divide in tank, the bottom of disc insulator three is fixed with Conducting connecting bar one, it is described divide in tank, the bottom of disc insulator five is fixed with conducting connecting bar three,

The bottom of described point of tank is equipped with rotatable transmission handwheel, the core wheel of the transmission handwheel be fixed with protrude into it is exhausted in point tank Edge drive rod, being located at for the insulating driving rod divide and are fixed with the angular wheel coaxial with insulating driving rod on the end in tank One, it is described divide in tank to be equipped be adapted to angular wheel one and the angular wheel two vertical with angular wheel one, the angular wheel Two center is equipped with the wheel shaft of connection fixed thereto, and the wheel shaft is equipped with conducting connecting bar two normal thereto, the conduction The end of connecting rod two is fixed with disc insulator four, when rotation transmission handwheel makes disc insulator four be located at vertical state, Disc insulator four is contacted with conducting connecting bar one, when disc insulator four is located at horizontality, disc insulator four be located at Divide the conducting block contact on top tank structure,

The conducting connecting bar three is fixed with the supporting block of angular wheel two, the supporting block far from the end of disc insulator five It is equipped with the location hole with wheel shaft.
2. voltage transformer pressure resistance local discharge test device in GIS according to claim 1, which is characterized in that described to divide tank For one of single-phase switch tank or threephase switch tank or a variety of.
3. voltage transformer pressure resistance local discharge test device in GIS according to claim 1, which is characterized in that connect each institute The conducting rod for stating point tank is fixedly connected on link block.