CN208140801U - A kind of bushing shell for transformer distal end power failure experimental rig - Google Patents
A kind of bushing shell for transformer distal end power failure experimental rig Download PDFInfo
- Publication number
- CN208140801U CN208140801U CN201820554099.3U CN201820554099U CN208140801U CN 208140801 U CN208140801 U CN 208140801U CN 201820554099 U CN201820554099 U CN 201820554099U CN 208140801 U CN208140801 U CN 208140801U
- Authority
- CN
- China
- Prior art keywords
- terminals
- power failure
- transformer
- distal end
- experimental rig
- 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.)
- Active
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to the technical fields of substation's test method, more specifically, it is related to a kind of bushing shell for transformer distal end power failure experimental rig, including end shield adapter, cable and in-site collecting device, the cable connection is between end shield adapter and in-site collecting device；The end shield adapter is equipped with terminals and ground terminal; the in-site collecting device includes the first terminals, the second terminals being connect respectively by cable with terminals, ground terminal; first terminals are connected with anti-open-circuit protector; first terminals can be connect with megameter, dielectric loss measuring instrument, and second terminals are connected with current transformer.The utility model, which can be realized, not to be torn end shield adapter open and carries out power failure test, the test of a sleeve of main transformer can be completed in ground change wiring, realize esd ground operation, elimination is ascended a height operating risk, it saves operation of ascending a height, remove the time for restoring end shield adapter, working efficiency is improved, the person, equipment Risk are reduced.
Description
Technical field
The utility model relates to the technical fields of substation's test method, remote more particularly, to a kind of bushing shell for transformer
Hold power failure experimental rig.
Background technique
Bushing shell for transformer, which installs on-line monitoring system additional, can effectively find casing insulation defect, be answered extensively in electric system
With.Casing on-line monitoring system is usually made of end shield adapter, cable, in-site collecting device etc., is filled as bottom shielding of bushing is grounded
Setting structure is built-in ground connection, then need to install end shield adapter additional at bottom shielding of bushing earthing or grounding means, then passes through cable for end shield
Earth current signal is sent to in-site collecting device and is handled.And according to testing regulations, bushing shell for transformer need to periodically be stopped
Electric test mainly includes major insulation and casing the dielectric dissipation factor tan δ of end shield and capacitance, end shield insulation against ground electricity over the ground
Resistance test.
For having installed the bushing shell for transformer of on-line monitoring end shield adapter additional, to eliminate end shield adapter rear end to adopting on the spot
The influence of long range common cable stray capacitance and external disturbance to power failure preventive trial data, traditional experiment between acquisition means
Method need to remove end shield adapter and rear end cable, at end shield earthing or grounding means（Proximal end）It is directly tested, off-test is extensive
After multiple end shield adapter, and at in-site collecting device（Distally）Check that end shield is grounded recovery situation.However, because of end shield adapter
Installation, operating procedure are complicated, and 500kV bottom shielding of bushing imperfect earth caused by having occurred because of misoperation, capacitor core make moist
Defect increases the equipment Risk in bottom shielding of bushing lost territory, dampness.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of power failure of installation bushing shell for transformer distal end
Experimental rig carries out bushing shell for transformer insulation resistance, dielectric dissipation factor tan δ and capacitance test at in-site collecting device.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of bushing shell for transformer distal end power failure experimental rig, including end shield adapter, cable and in-site collecting dress are provided
It sets, the cable connection is between end shield adapter and in-site collecting device；The end shield adapter is equipped with terminals and ground connection
End, the in-site collecting device include the first terminals being connect respectively by cable with terminals, ground terminal, the second wiring
End, first terminals are connected with anti-open-circuit protector, and the first terminals can be connect with megameter, dielectric loss measuring instrument, institute
It states the second terminals and is connected with current transformer.
The bushing shell for transformer distal end power failure experimental rig of the utility model disconnects the first terminals and anti-open-circuit protector
Connection disconnects the connection of the second terminals and current transformer, tests test transformer set in the first terminals connection megameter
Pipe insulation against ground resistance and test transformer casing insulation resistance, in the first terminals connection dielectric loss measuring instrument test test transformation
Device casing tan δ and capacitance test.The utility model, which can be realized, not to be torn end shield adapter open and carries out power failure test, is become on ground
More wiring can complete the test of a sleeve of main transformer, realize esd ground operation, eliminate operating risk of ascending a height, and save work of ascending a height
Industry removes the time for restoring end shield adapter, improves working efficiency, reduces the person, equipment Risk.
Further, the cable includes single-core cable and the power failure test wire with function of shielding, the power failure examination
It tests line to be connected between terminals and the first terminals, the single-core cable is connected between ground terminal and the second terminals.Stop
The setting of electric test line can eliminate the influence of electric jamming.
Further, the power failure test wire include the core-wire layer being sequentially arranged from inside to outside, equipotential layer, shielded layer with
And restrictive coating, it is equipped with the first insulating layer between the core-wire layer and equipotential layer, is equipped between the equipotential layer and shielded layer
Second insulating layer.
Further, one end of the power failure test wire is equipped with interface plug, and the interface plug includes connecting with terminals
The first foot connect and the crus secunda in hanging masked state and third foot.First foot is adapted to by power failure test wire with end shield
The terminals of device connect, and crus secunda, third foot are in hanging masked state.
Further, the first disconnecting link, the Current Mutual Inductance are connected between the anti-open-circuit protector and the first terminals
The second disconnecting link is connected between device and the second terminals.First terminals connect realization with anti-open-circuit protector by the first disconnecting link
The protection of circuit, the second terminals connect the acquisition for realizing current signal, the first disconnecting link with current transformer by the second disconnecting link
Setting with the second disconnecting link is mutual convenient for controlling the connection between the first terminals and anti-open-circuit protector, the second terminals and electric current
Connection between sensor.
Further, first disconnecting link is single-pole single-throw switch (SPST), and second disconnecting link is double-pole single throw.
Further, first terminals include the signal wire interface and high pressure line interface connected by conducting wire.The
Two movable contacts of two disconnecting links are connect with the signal wire interface of the second terminals, the first terminals respectively, the dynamic touching of the first disconnecting link
Point is connect with the high pressure line interface of the first terminals.
Further, first terminals, the second terminals, the first disconnecting link, the second disconnecting link are set to secondary connection plate
On.First terminals, the second terminals are set in secondary connection plate, the first disconnecting link, the second disconnecting link operating side be set to and secondary connect
It is easy to operate outside line plate, and can guarantee the safety of operation.
Compared with prior art, the utility model has the beneficial effects that：
The bushing shell for transformer distal end power failure experimental rig of the utility model can be realized and not tear end shield adapter open and have a power failure
Test can complete the test of a sleeve of main transformer in ground change wiring, realize esd ground operation, eliminate operation wind of ascending a height
Danger saves operation of ascending a height, removes the time for restoring end shield adapter, improve working efficiency, reduces the person, equipment Risk.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the bushing shell for transformer distal end power failure experimental rig of the utility model.
Fig. 2 is the structural schematic diagram of the in-site collecting device of bushing shell for transformer distal end power failure experimental rig.
Fig. 3 is the structural schematic diagram of the power failure test wire of bushing shell for transformer distal end power failure experimental rig.
Specific embodiment
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；It is practical at this
In novel description, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore retouch in attached drawing
The term for stating positional relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment one
It is as shown in Figure 1 to Figure 3 the first embodiment of the bushing shell for transformer distal end power failure experimental rig of the utility model, packet
End shield adapter 1, cable and in-site collecting device 2 are included, cable connection is between end shield adapter 1 and in-site collecting device 2；
End shield adapter 1 is equipped with terminals 11 and ground terminal 12, in-site collecting device 2 include respectively by cable and terminals 11, connect
The first terminals 21, the second terminals 22 of the connection of ground terminal 12, the first terminals 21 are connected with anti-open-circuit protector 3, and first connects
Line end 21 can be connect with megameter, dielectric loss measuring instrument, and the second terminals are connected with current transformer 4.
Specifically, as shown in Figure 1, cable includes single-core cable 5 and the power failure test wire 6 with function of shielding, have a power failure
Test wire 6 is connected between terminals 11 and the first terminals 21, and single-core cable 5 is connected to ground terminal 12 and the second terminals 22
Between.Wherein, as shown in figure 3, power failure test wire 6 includes the core-wire layer 61 being sequentially arranged from inside to outside, equipotential layer 62, shielding
Layer 63 and restrictive coating 64 are equipped with the first insulating layer 65, equipotential layer 62 and shielded layer between core-wire layer 61 and equipotential layer 62
Second insulating layer 66 is equipped between 63, the setting of shielded layer 63 can eliminate the influence of electric jamming.As shown in Fig. 2, the examination that has a power failure
The one end for testing line 6 is equipped with interface plug 7, and interface plug 7 includes the first foot 71 connecting with terminals and shields in hanging
The crus secunda 72 and third foot 73 of state, the first foot 71 are connect by power failure test wire 6 with the terminals 11 of end shield adapter 1,
Crus secunda 72, third foot 73 are in hanging masked state.
As shown in Figure 1 and Figure 2, the first disconnecting link 8, Current Mutual Inductance are connected between anti-open-circuit protector 3 and the first terminals 21
The second disconnecting link 9 is connected between device 4 and the second terminals 22, the first terminals 21 pass through the first disconnecting link 8 and anti-open-circuit protector 3
The protection of circuit is realized in connection, and the second terminals 22 are connect by the second disconnecting link 9 with current transformer 4 and realize adopting for current signal
Collection, the setting of the first disconnecting link 8 and the second disconnecting link 9 convenient between the first terminals 21 of control and anti-open-circuit protector 3 connection, the
Connection between two terminals 22 and current transformer 4.Wherein, the first disconnecting link 8 is single-pole single-throw switch (SPST), and the second disconnecting link 9 is double
Monopole single throw switch, the first terminals 21 include the signal wire interface 23 and high pressure line interface 24 connected by conducting wire.Second knife
Two movable contacts of lock 9 are connect with the signal wire interface 23 of the second terminals 22, the first terminals 21 respectively, the first disconnecting link 8
Movable contact is connect with the high pressure line interface 24 of the first terminals 21.
In addition, the first terminals 21, the second terminals 22, the first disconnecting link 8, the second disconnecting link 9 are set to secondary connection plate 10
On, the first terminals 21, the second terminals 22 be set to secondary connection plate 10 in, the first disconnecting link 8, the second disconnecting link 9 operating side set
It is easy to operate in outside secondary connection plate 10, and can guarantee the safety of operation.
The present embodiment is in test transformer casing insulation against ground resistance：The first disconnecting link 8, the second disconnecting link 9 are disconnected, passes through
One terminals 21 apply voltage to end shield adapter 1 and test, in the access megameter test of the first terminals 21；
In test transformer casing insulation resistance：The first disconnecting link 8, the second disconnecting link 9 are disconnected, is accessed in the first terminals 21
Megameter test；
In test transformer casing dielectric dissipation factor tan δ and capacitance：The first disconnecting link 8, the second disconnecting link 9 are disconnected,
Dielectric loss measuring instrument test is accessed in the signal wire interface 23 of the first terminals 21.
The present embodiment, can also be based on reversal connection collimation method in test transformer casing dielectric dissipation factor tan δ and capacitance
Dielectric loss measuring instrument test is accessed in the high pressure line interface 24 of the first terminals 21.It is connect in the signal wire interface 23 of the first terminals 21
Enter dielectric loss measuring instrument and carry out positive connection test, accesses dielectric loss measuring instrument in the high pressure line interface 24 of the first terminals 21 and carry out instead
Connection test, to obtain accurate test transformer casing dielectric dissipation factor tan δ and capacitance.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (8)
1. a kind of bushing shell for transformer distal end power failure experimental rig, which is characterized in that including end shield adapter（1）, cable and just
Ground acquisition device（2）, the cable connection is in end shield adapter（1）With in-site collecting device（2）Between；The end shield adapter
（1）Equipped with terminals（11）And ground terminal（12）, the in-site collecting device（2）Including passing through cable and terminals respectively, connecing
First terminals of ground terminal connection（21）, the second terminals（22）, first terminals（21）It is connected with anti-open-circuit protector
（3）, the first terminals（21）It can be connect with megameter, dielectric loss measuring instrument, second terminals（22）It is mutual to be connected with electric current
Sensor（4）.
2. power failure experimental rig in bushing shell for transformer distal end according to claim 1, which is characterized in that the cable includes single
Core cable（5）And the power failure test wire with function of shielding（6）, the power failure test wire（6）It is connected to terminals（11）With
First terminals（21）Between, the single-core cable（5）It is connected to ground terminal（12）With the second terminals（22）Between.
3. power failure experimental rig in bushing shell for transformer distal end according to claim 2, which is characterized in that the power failure test wire
（6）Including the core-wire layer being sequentially arranged from inside to outside（61）, equipotential layer（62）, shielded layer（63）And restrictive coating（64）, institute
State core-wire layer（61）And equipotential layer（62）Between be equipped with the first insulating layer（65）, the equipotential layer（62）And shielded layer（63）
Between be equipped with second insulating layer（66）.
4. power failure experimental rig in bushing shell for transformer distal end according to claim 3, which is characterized in that the power failure test wire
（6）One end be equipped with interface plug（7）, the interface plug includes the first foot connecting with terminals（71）And in hanging
The crus secunda of masked state（72）With third foot（73）.
5. power failure experimental rig in bushing shell for transformer distal end according to any one of claims 1 to 4, which is characterized in that described
Anti- open-circuit protector（3）With the first terminals（21）Between be connected with the first disconnecting link（8）, the current transformer（4）With second
Terminals（22）Between be connected with the second disconnecting link（9）.
6. power failure experimental rig in bushing shell for transformer distal end according to claim 5, which is characterized in that first disconnecting link
（8）For single-pole single-throw switch (SPST), second disconnecting link（9）For double-pole single throw.
7. power failure experimental rig in bushing shell for transformer distal end according to claim 6, which is characterized in that first terminals
（21）Including the signal wire interface connected by conducting wire（23）And high pressure line interface（24）.
8. power failure experimental rig in bushing shell for transformer distal end according to claim 5, which is characterized in that first terminals
（21）, the second terminals（22）, the first disconnecting link（8）, the second disconnecting link（9）It is set to secondary connection plate（10）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554099.3U CN208140801U (en) | 2018-04-18 | 2018-04-18 | A kind of bushing shell for transformer distal end power failure experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820554099.3U CN208140801U (en) | 2018-04-18 | 2018-04-18 | A kind of bushing shell for transformer distal end power failure experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208140801U true CN208140801U (en) | 2018-11-23 |
Family
ID=64293898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820554099.3U Active CN208140801U (en) | 2018-04-18 | 2018-04-18 | A kind of bushing shell for transformer distal end power failure experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208140801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362945A (en) * | 2018-04-18 | 2018-08-03 | 广东电网有限责任公司 | A kind of bushing shell for transformer distal end power failure experimental rig and method |
-
2018
- 2018-04-18 CN CN201820554099.3U patent/CN208140801U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362945A (en) * | 2018-04-18 | 2018-08-03 | 广东电网有限责任公司 | A kind of bushing shell for transformer distal end power failure experimental rig and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020125090A1 (en) | Transformer monitoring system and method | |
| EP3200207A1 (en) | Combined electrical appliance of multiple set of capacitive screen insulating core | |
| CN106556753B (en) | A kind of divider fault monitoring device | |
| CN106526288A (en) | Transmission line voltage and current monitoring system and method | |
| CN106443144A (en) | Distributed transient overvoltage monitoring system for EHV (extra-high voltage) GIS | |
| CN104062526A (en) | Oil-oil bushing cable outlet transformer test method without head removing | |
| CN102981106A (en) | Online inspection method of three-phase cross interconnected electric cable intermediate head partial discharge | |
| CN109188104A (en) | The dielectric response of paper oil insulation casing not blackouts monitoring system and method | |
| CN106526294A (en) | Over-voltage monitoring system and monitoring method for transmission line | |
| CN208140801U (en) | A kind of bushing shell for transformer distal end power failure experimental rig | |
| CN203658430U (en) | Capacitive equipment insulation online monitoring and electrification test integrated sampling protection device | |
| CN106249054B (en) | Capacitance type voltage transformer and integrated detection sensor thereof | |
| CN110501619A (en) | A kind of high frequency response partial pressure measuring apparatus | |
| CN110426616A (en) | A kind of GIS partial discharge detection device and method based on flange plate bolt | |
| CN203561722U (en) | Two-frequency signal detection position indicator for electricity overhead line | |
| CN102305903A (en) | Partial discharge detection method for pulse current of electrified operation single phase integrated gas insulated switchgear (GIS) | |
| CN105372457A (en) | Capacitive equipment electrified detection end screen sampling device | |
| CN107453340A (en) | A kind of Intelligent arc extinguishing resonance elimination overvoltage suppression cabinet | |
| CN207557408U (en) | High voltage capacitive apparatus insulated on-line monitoring system based on divider | |
| CN115032512B (en) | GIS basin-type insulator on-line detection sensor | |
| RU2640315C1 (en) | Adjustable capacitive sensor of high voltage | |
| CN206040566U (en) | Auxiliary ground device | |
| CN108362945A (en) | A kind of bushing shell for transformer distal end power failure experimental rig and method | |
| CN209513975U (en) | A kind of authentic partial discharge monitoring device of switchgear | |
| CN113433435A (en) | Steep wave measurement trigger device based on electric signal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |