CN109036820A - A kind of flame retardant type open-close type voltage transformer - Google Patents
A kind of flame retardant type open-close type voltage transformer Download PDFInfo
- Publication number
- CN109036820A CN109036820A CN201811167993.6A CN201811167993A CN109036820A CN 109036820 A CN109036820 A CN 109036820A CN 201811167993 A CN201811167993 A CN 201811167993A CN 109036820 A CN109036820 A CN 109036820A
- Authority
- CN
- China
- Prior art keywords
- motion picture
- steel sheet
- movie
- silicon steel
- thermal insulation
- 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.)
- Pending
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 27
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- 230000006698 induction Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/105—Cooling by special liquid or by liquid of particular composition
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a kind of flame retardant type open-close type voltage transformers, including first part and second part, first part includes several layers silicon steel sheet, insulating layer, liquid nitrogen layer and thermal insulation layer, silicon steel sheet includes short-movie and lengthy motion picture, short-movie, lengthy motion picture are sequentially overlapped setting, and insulating layer is set to the outside of silicon steel sheet, and the both ends of insulating layer are equipped with jack, two jacks are separately connected the both ends for being wound in silicon steel sheet induction coil, and liquid nitrogen layer, thermal insulation layer are set in turn in the outside of insulating layer；Second part and first part are symmetrical arranged, but further include connecting terminal, and when two parts connection, contact pin is inserted into jack, and the short-movie of first part, the end of lengthy motion picture are separately connected the lengthy motion picture and short-movie of first part.Liquid nitrogen layer of the invention cools down for heat caused by inside, prevents high temperature from causing failure, when voltage transformer is on fire, internal liquid nitrogen can be made to leak, play the role of cooling, fire extinguishing.Thermal insulation layer can play isolation internal temperature and fire-retardant effect.
Description
Technical field
The present invention relates to voltage transformer technical fields, and in particular to a kind of flame retardant type open-close type voltage transformer.
Background technique
Mutual inductor is that the conducting wire of a fixing turn is wound on the iron core of certain number of plies (usually using electromagnetic induction principle
Enameled wire), then the variation by measurement across the electric field of iron core conducting wire forms magnetic field in core interior, then again outside iron core
The inside of portion's conducting wire generates electric current, is realized by the current or voltage of iron core outer lead for core interior current or voltage
Monitoring.
Due to being closer when voltage transformer work with cable or busbar, when a failure occurs it, it is easy on fire, initiation is more
Big accident, therefore the flame retardant property of voltage transformer has become the important performance indexes of voltage transformer.Existing means are promoted
The improvement of the flame retardant property for external insulating materials is usually used in the mode of voltage transformer flame retardant property, or to mutual inductance
The integrally-built improvement of device insulating materials but lacks research, therefore studies a kind of novel flame-retardant type open-close type voltage transformer especially
It is important.
Summary of the invention
To solve deficiency in the prior art, the present invention provides a kind of flame retardant type open-close type voltage transformer, solves existing
There is incendive technical problem when open-close type voltage transformer breaks down in technology.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of flame retardant type open-close type voltage transformer, including first part and second part, first part include several layers silicon steel
Piece, insulating layer, liquid nitrogen layer and thermal insulation layer, silicon steel sheet include short-movie and lengthy motion picture, and short-movie, lengthy motion picture are sequentially overlapped setting, and insulating layer is set
It is placed in the outside of silicon steel sheet, the both ends of insulating layer are equipped with jack, and two jacks, which are separately connected, is wound in silicon steel sheet induction coil
Both ends, liquid nitrogen layer, thermal insulation layer are set in turn in the outside of insulating layer.
Second part includes several layers silicon steel sheet, insulating layer, liquid nitrogen layer, thermal insulation layer and connecting terminal, and silicon steel sheet includes short
Piece and lengthy motion picture, short-movie, lengthy motion picture are sequentially overlapped setting, and insulating layer is set to the outside of silicon steel sheet, and the both ends of insulating layer are equipped with slotting
Needle, two contact pins are separately connected the both ends for being wound in silicon steel sheet induction coil, and liquid nitrogen layer, thermal insulation layer are set in turn in insulating layer
It is external；There are three connecting terminals, and connecting terminal connects the induction coil of second part.
When first part connects second part, contact pin is inserted into jack, and the short-movie of first part, the end of lengthy motion picture connect respectively
Connect the lengthy motion picture and short-movie of first part.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, the both ends of thermal insulation layer are additionally provided with connecting plate, when
When a part connection second part, the connecting plate of the connecting plate connection second part of first part.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, the connecting plate of first part passes through bolt or spiral shell
The connecting plate of nail connection second part.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, the interior edge of lengthy motion picture are additionally provided with limit plate.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, thermal insulation layer includes asbestic blanket and is set to asbestos
Thermal insulation board outside felt.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, thermal insulation board is micarex.
Specifically, a kind of flame retardant type open-close type voltage transformer above-mentioned, the end of short-movie is equipped with trapezoidal sections, and lengthy motion picture is equipped with
The groove to match with trapezoidal sections, when first part connects second part, trapezoidal sections connecting groove.
Advantageous effects of the invention: liquid nitrogen layer of the invention cools down for heat caused by inside, prevent
Only high temperature causes failure, when voltage transformer is on fire, internal liquid nitrogen can be made to leak, play the work of cooling, fire extinguishing
With.In external thermal insulation layer, mainly there are two effects, first is that play the role of completely cutting off internal temperature, allow the installer to be unlikely to by
Internal low temperature is hurt；Second is that mica sheet and asbestic blanket can play fire-retardant performance, it when a fire, can be in certain journey
The sprawling of fire is prevented on degree.
Detailed description of the invention
Fig. 1 is overall structure figure of the present invention；
Fig. 2 is A-A cut away view of the present invention；
Fig. 3 is short-movie of the present invention and lengthy motion picture structural schematic diagram；
The meaning of appended drawing reference: 1- silicon steel sheet；11- short-movie；12- lengthy motion picture；13- limit plate；2- insulating layer；3- liquid nitrogen layer；4- every
Thermosphere；5- connecting terminal；21- jack；22- contact pin；41- connecting plate.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figures 1 and 2: present embodiment discloses a kind of flame retardant type open-close type voltage transformers, including first part
With second part, first part includes several layers silicon steel sheet 1, insulating layer 2, liquid nitrogen layer 3 and thermal insulation layer 4, and silicon steel sheet 1 includes short-movie
11 and lengthy motion picture 12, short-movie 11, lengthy motion picture 12 be sequentially overlapped setting, insulating layer 2 is set to the outside of silicon steel sheet 1, the both ends of insulating layer 2
Be equipped with jack 21, two jacks 21 are separately connected the both ends for being wound in 1 induction coil of silicon steel sheet, liquid nitrogen layer 3, thermal insulation layer 4 according to
The secondary outside for being set to insulating layer 2；
Second part includes several layers silicon steel sheet 1, insulating layer 2, liquid nitrogen layer 3, thermal insulation layer 4 and connecting terminal 5, and silicon steel sheet 1 includes
Short-movie 11 and lengthy motion picture 12, short-movie 11, lengthy motion picture 12 are sequentially overlapped setting, and insulating layer 2 is set to the outside of silicon steel sheet 1, insulating layer 2
Both ends are equipped with contact pin 22, and two contact pins 22 are separately connected the both ends for being wound in 1 induction coil of silicon steel sheet, liquid nitrogen layer 3, thermal insulation layer
4 are set in turn in the outside of insulating layer 2；There are three connecting terminals 5, and connecting terminal 5 connects the induction coil of second part；
When first part connects second part, contact pin 22 is inserted into jack 21, the end part of the short-movie 11 of first part, lengthy motion picture 12
Not Lian Jie first part lengthy motion picture 12 and short-movie 11.
The both ends of thermal insulation layer 4 are additionally provided with connecting plate, and when first part connects second part, the connecting plate of first part connects
Connect the connecting plate 41 of second part.The connecting plate of first part preferably passes through the connecting plate of bolt or screw connection second part
41。
Due to being separated with short-movie 11 between lengthy motion picture 12, in order to guarantee the uniformity in gap between each lengthy motion picture 12, make first
When point separating with second part, lengthy motion picture 12 avoids generation bending, so the interior edge in lengthy motion picture 12 is additionally provided with limit plate 13, limit plate
13, there are two acting on, first is that can guarantee that all lengthy motion pictures 12 become an entirety, prevent from being bent over, second is that working as two-part lengthy motion picture
12 mutually when plugging, and can play the role of limit for the interior edge of lengthy motion picture 12.
The thermal insulation layer 4 of the present embodiment includes asbestic blanket and the thermal insulation board being set to outside asbestic blanket, the preferred mica of thermal insulation board
Plate.
As shown in Figure 3: when connecting to promote short-movie 11 with lengthy motion picture 12, the tight type of end connection prevents leakage field
Phenomenon, the end of the present embodiment short-movie 11 are equipped with trapezoidal sections, and lengthy motion picture 12 is equipped with the groove to match with trapezoidal sections, works as first part
When connecting second part, trapezoidal sections connecting groove.
In use, two parts are plugged in together, two-part connecting plate 41 is linked together by screw or bolt,
Contact pin 22 is inserted into jack 21, and two-part induction coil is connected, and short-movie 11 is connect with lengthy motion picture 12, is capable of forming one completely
Flux circuit, the present embodiment can work at this time, detect voltage.Relative to the voltage transformer of closed type, the electricity of open-close type
Pressure mutual inductor have the advantages that dismounting, replace it is convenient, and install and dismantle when, do not need to tear open the connector of busbar or conducting wire
It opens.
When normal use, 3 inside liquid nitrogen of liquid nitrogen layer cools down for heat caused by inside, prevents high temperature from causing event
Barrier can be such that internal liquid nitrogen leaks, play the role of cooling, fire extinguishing when voltage transformer is on fire.In outside
Mainly there are two effects for thermal insulation layer 4, first is that playing the role of completely cutting off internal temperature, allow the installer to be unlikely to by internal hypothermal injury
It arrives；Second is that mica sheet and asbestic blanket can play fire-retardant performance, when a fire, fire can be prevented to a certain extent
Sprawling.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of flame retardant type open-close type voltage transformer, it is characterised in that: including first part and second part, described first
Divide including several layers silicon steel sheet (1), insulating layer (2), liquid nitrogen layer (3) and thermal insulation layer (4), the silicon steel sheet (1) includes short-movie
(11) and lengthy motion picture (12), the short-movie (11), lengthy motion picture (12) are sequentially overlapped setting, and the insulating layer (2) is set to silicon steel sheet (1)
Outside, the both ends of insulating layer (2) are equipped with jack (21), and two jacks (21), which are separately connected, is wound in silicon steel sheet (1) induction
The both ends of coil, the liquid nitrogen layer (3), thermal insulation layer (4) are set in turn in the outside of insulating layer (2)；
The second part includes several layers silicon steel sheet (1), insulating layer (2), liquid nitrogen layer (3), thermal insulation layer (4) and connecting terminal
(5), the silicon steel sheet (1) includes short-movie (11) and lengthy motion picture (12), and the short-movie (11), lengthy motion picture (12) are sequentially overlapped setting, institute
The outside that insulating layer (2) is set to silicon steel sheet (1) is stated, the both ends of insulating layer (2) are equipped with contact pin (22), two contact pins (22) point
The both ends of silicon steel sheet (1) induction coil Lian Jie be wound in, the liquid nitrogen layer (3), thermal insulation layer (4) are set in turn in insulating layer
(2) outside；There are three the connecting terminals (5), and connecting terminal (5) connects the induction coil of second part；
When first part connects second part, contact pin (22) is inserted into jack (21), short-movie (11), the lengthy motion picture (12) of first part
End be separately connected the lengthy motion picture (12) and short-movie (11) of first part.
2. a kind of flame retardant type open-close type voltage transformer according to claim 1, it is characterised in that: the thermal insulation layer (4)
Both ends be additionally provided with connecting plate (41), when first part connects second part, the connecting plate of first part connects second part
Connecting plate.
3. a kind of flame retardant type open-close type voltage transformer according to claim 2, it is characterised in that: the first part
Connecting plate connects the connecting plate of second part by bolt or screw.
4. a kind of flame retardant type open-close type voltage transformer according to claim 1, it is characterised in that: the lengthy motion picture (12)
Interior edge is additionally provided with limit plate (13).
5. a kind of flame retardant type open-close type voltage transformer according to claim 1, it is characterised in that: the thermal insulation layer (4)
Including asbestic blanket and the thermal insulation board being set to outside asbestic blanket.
6. a kind of flame retardant type open-close type voltage transformer according to claim 1, it is characterised in that: the thermal insulation board is cloud
Motherboard.
7. a kind of flame retardant type open-close type voltage transformer according to claim 1, it is characterised in that: the short-movie (11)
End is equipped with trapezoidal sections, and the lengthy motion picture (12) is equipped with the groove to match with trapezoidal sections, when first part connects second part,
The trapezoidal sections connecting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167993.6A CN109036820A (en) | 2018-10-08 | 2018-10-08 | A kind of flame retardant type open-close type voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167993.6A CN109036820A (en) | 2018-10-08 | 2018-10-08 | A kind of flame retardant type open-close type voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109036820A true CN109036820A (en) | 2018-12-18 |
Family
ID=64616217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811167993.6A Pending CN109036820A (en) | 2018-10-08 | 2018-10-08 | A kind of flame retardant type open-close type voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036820A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE842333A (en) * | 1975-05-30 | 1976-09-16 | CURRENT TRANSFORMER, IN PARTICULAR IN A POT OR ON CROSS-BODY | |
| CN1079304A (en) * | 1992-05-19 | 1993-12-08 | 华中理工大学 | A kind of AC current comparator |
| CN201352477Y (en) * | 2008-12-03 | 2009-11-25 | 王静然 | Open-close type transformer iron core |
| CN201788812U (en) * | 2010-07-23 | 2011-04-06 | 江苏思源赫兹互感器有限公司 | Iron core of voltage transformer |
| CN203481033U (en) * | 2013-09-18 | 2014-03-12 | 许世林 | Double-insulation voltage transformer |
| CN204011023U (en) * | 2014-05-22 | 2014-12-10 | 珠海中慧微电子有限公司 | Zero sequence current mutual inductor |
| CN104218202A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN206849610U (en) * | 2016-11-04 | 2018-01-05 | 东莞市锦锐电子科技有限公司 | A kind of waterproof transformer |
| CN108183014A (en) * | 2017-12-04 | 2018-06-19 | 国网河南省电力公司滑县供电公司 | A kind of voltage transformer |
| CN108461265A (en) * | 2017-02-20 | 2018-08-28 | 武汉市欧睿科技有限公司 | A kind of electric current folding mutual inductor |
| CN209297902U (en) * | 2018-10-08 | 2019-08-23 | 江苏南瑞泰事达电气有限公司 | A kind of flame retardant type open-close type voltage transformer |
-
2018
- 2018-10-08 CN CN201811167993.6A patent/CN109036820A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE842333A (en) * | 1975-05-30 | 1976-09-16 | CURRENT TRANSFORMER, IN PARTICULAR IN A POT OR ON CROSS-BODY | |
| CN1079304A (en) * | 1992-05-19 | 1993-12-08 | 华中理工大学 | A kind of AC current comparator |
| CN201352477Y (en) * | 2008-12-03 | 2009-11-25 | 王静然 | Open-close type transformer iron core |
| CN201788812U (en) * | 2010-07-23 | 2011-04-06 | 江苏思源赫兹互感器有限公司 | Iron core of voltage transformer |
| CN203481033U (en) * | 2013-09-18 | 2014-03-12 | 许世林 | Double-insulation voltage transformer |
| CN204011023U (en) * | 2014-05-22 | 2014-12-10 | 珠海中慧微电子有限公司 | Zero sequence current mutual inductor |
| CN104218202A (en) * | 2014-07-30 | 2014-12-17 | 浙江超威创元实业有限公司 | Lithium battery having fire-proof and explosion-proof device and electrical vehicle equipped with same |
| CN206849610U (en) * | 2016-11-04 | 2018-01-05 | 东莞市锦锐电子科技有限公司 | A kind of waterproof transformer |
| CN108461265A (en) * | 2017-02-20 | 2018-08-28 | 武汉市欧睿科技有限公司 | A kind of electric current folding mutual inductor |
| CN108183014A (en) * | 2017-12-04 | 2018-06-19 | 国网河南省电力公司滑县供电公司 | A kind of voltage transformer |
| CN209297902U (en) * | 2018-10-08 | 2019-08-23 | 江苏南瑞泰事达电气有限公司 | A kind of flame retardant type open-close type voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105301296B (en) | Live plug connector of low-voltage metering box | |
| CN209297902U (en) | A kind of flame retardant type open-close type voltage transformer | |
| CN104157434B (en) | 220kV electric pressure gas-insulated transformer | |
| CN109036820A (en) | A kind of flame retardant type open-close type voltage transformer | |
| CN104316736B (en) | Combined insulated lead for switch cabinet power-frequency and alternating-current withstand voltage test | |
| CN208938762U (en) | A kind of oil-immersed transformer resistant to high temperature | |
| CN102938305B (en) | Super extra-high-voltage alternating current transformer outgoing line device | |
| CN206412758U (en) | Arc-control device and electric power system | |
| CN204215891U (en) | A kind of open current transformer | |
| CN208316315U (en) | A kind of device of self energizing | |
| CN112510453A (en) | Novel secondary short-circuit wire of current transformer | |
| KR100475278B1 (en) | A transformer insulation system for power distribution of complex insulation method | |
| CN209843474U (en) | Series-parallel connection multipurpose high-reliability power transformer | |
| CN220106239U (en) | Secondary framework structure of dry ignition coil | |
| CN208461462U (en) | A kind of direct-current traction power supply equipment of tape frame protective device | |
| CN101521103A (en) | Grounding method of primary coil N end of relatively semi-insulating electromagnetic voltage transformer and iron core | |
| KR101612089B1 (en) | Iron core assembly for a molded transformer | |
| CN208922828U (en) | A kind of novel ignition transformer | |
| CN215644068U (en) | Grounding voltage transformer with fuse | |
| CN211016731U (en) | Peripheral pressure type amorphous transformer wire | |
| CN221150901U (en) | Cotton-free light spliced fire-resistant bus duct | |
| CN209180991U (en) | A kind of igniter ignition transformer shell | |
| CN211699899U (en) | Low-voltage double-outlet dry-type transformer | |
| CN208834832U (en) | A kind of high temperature resistant coil | |
| CN206210726U (en) | A kind of residual current action breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 225300 No.1 taishida Road, Taizhou Economic Development Zone, Jiangsu Province Applicant after: Jiangsu Nari Turbo Star Electric Co.,Ltd. Address before: 225300 No.1 taishida Road, Taizhou Economic Development Zone, Jiangsu Province Applicant before: JIANGSU NARI TURBOSTAR ELECTRIC CO.,LTD. |