CN87203652U - High insulated track trunking transformer - Google Patents
High insulated track trunking transformer Download PDFInfo
- Publication number
- CN87203652U CN87203652U CN 87203652 CN87203652U CN87203652U CN 87203652 U CN87203652 U CN 87203652U CN 87203652 CN87203652 CN 87203652 CN 87203652 U CN87203652 U CN 87203652U CN 87203652 U CN87203652 U CN 87203652U
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- transformer
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- primary
- terminal board
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Abstract
The utility model adopts a C-typed iron core, and two coils are winded on the two C-typed iron cores respectively. A terminal plate is high-frequency porcelain which is plated with metal, a terminal bolt is welded to a hole on the terminal plate. The terminal plate is seal welded with the casing and encapsulated by silicon rubber after installations are completed. The high insulated track trunking transformer is suitable for insulations of the trunking transformer which is damaged by lightning strikes in thunderstorm seasons, which does no harm to relays and rectifying elements.
Description
A kind of transformer belongs to the relay transformer that AC track circuit is used in the railway signal system.Used JZXC type AC rectification formula track circuit is that China designs in conjunction with the safety type relay seriation sixties, wherein BZ4 track relay transformer is as impedance conversion relay transformer between the track of this track circuit and the indoor track relay, be loaded in the outdoor transformer case, the general environment variations in temperature is bigger, running into thunderstorm season humidity changes greatly, the insulation of harm relay transformer, it is more damaged by thunderbolt.
The purpose of this utility model provides a kind of high insulated track relay transformer no matter how temperature humidity changes, and its electromagnetic parameter conforms to Ministry of Railways's maintenance rule predetermining, the not super regulation of no-load current.Industrial frequency withstand voltage bears voltage and is not less than 5 kilovars, impacting insulation property is that 1.5/40 μ s is not less than 14 kilovars (the lightning protection Tentative Measures require to be not less than 10 kilovars), 10/200 μ s is not less than 15 kilovars (requirement is not less than 10 kilovars, 900 peaces), 1.69 thousand peaces, need not add any lightning protection element in utilization, this high insulated track relay transformer improves on former BZ4 relay transformer basis and forms.
The utility model is to realize like this, adopt C sections core, the primary and secondary coil is respectively on two posts of C sections core, adopt high frequency porcelain to make the terminal board of four terminals, relay transformer adopts the sealing of high insulation silica gel, primary coil adopts 1.16～1.2mm, and around 30～45 circles, secondary loops is scratched 700～900 circles with 0.21～0.23mm on another post.Coil is primary and secondary separately to be wrapped on two C sections stems, the thick mylar of the elementary employing 0.11mm of layer insulation, secondary usefulness 0.12 thick cable paper is done layer insulation, terminal board is the plating high frequency porcelain, bolt column is welded in the terminal board metal aperture, and the coil lead of burn-oning, metal cladding is the usefulness with the welding of iron body seal around the terminal board.Coil is impregnated insulating paint in a vacuum, once irritates the silicon rubber sealing after whole assemblings are intact.The utility model has not only improved dielectric strength and has also significantly reduced electric capacity between primary and secondary simultaneously, thereby lightning surge is presented very high impedance, plays electrostatic isolation and attenuation.Divide post to twine because coil adopts, and have very big leakage inductance again, when lightning impulse invaded transformer coil, electric current can not suddenly change, and therefore lightning surge was had time-lag action.Relay transformer adopts totally enclosed type, can carry out fully and not have maintenanceization, and cancellation regularly wheel is repaiied.
Now by attached circle the utility model is described as follows:
Accompanying drawing 1, receiving end relay transformer structure chart
Accompanying drawing 2, AC track circuit circuit diagram
Accompanying drawing 3, coil configuration figure
(1) is that relay transformer shell, (2) are that secondary lead, (7) for C sections core, (8) for coil, (9) for transmitting terminal transformer, (10) for track circuit, (11) be receiving end relay transformer, (12) be track relay for terminal board, (5) for elementary lead-in wire, (6) for terminal screw, (4) for silicon rubber sealing, (3) among the figure.
Embodiment: the utility model is a track circuit receiving end relay transformer, it is by shell (1), the sealing (2) of high insulation silica gel sealing, welding between terminal screw (3) and terminal board (4), this relay transformer is established 4 terminal screws (3), 2 is primary coil lead-in wire (5), and 2 are secondary coil lead-in wire (6), and primary and secondary coil (8) is respectively on C sections core (7).So not only improved dielectric strength and also significantly reduced primary and secondary electric capacity simultaneously,, played electrostatic isolation and attenuation presenting very high impedance in the thunder shock wave.50 hertz of power supplys of this relay transformer input AC, elementary is 0.5 volt, and secondary is 9～10 volts, and no-load current is 0.26～0.33 peace, elementary 7.3 volt-amperes of maximum power output, secondary is 2.93 volt-amperes; Core dimensions: C06 * 16 * 25 material D310 silicon steel sheets, thickness is: 0.35 millimeter, the primary coil diameter is 1.16 millimeters～1.2 millimeters, high-strength enamelled wire is around 30～45 circles, 0.21～0.23 millimeter high-strength enamelled wire of secondary usefulness is around 700～900 circles, and primary and secondary coil is respectively on two posts of C sections core; The mylar of elementary employing 0.11 millimeters thick of layer insulation, the cable paper of secondary usefulness 0.12 millimeters thick is done layer insulation.Terminal board plating high frequency porcelain is connected in the metal aperture on the terminal board stud weld and the coil lead of burn-oning.Around the terminal board metal cladding be for the usefulness of iron body seal welding; coil is a vacuum impregnation insulating varnish; all having assembled the back encapsulates with silicon rubber; making relay transformer withstand voltage is 17 kvolts/millimeter, and tension stress is 20 kilograms, the utlity model has characteristic moisture resistance, shatter-proof, high-low temperature resistant (60 ℃～+ 150 ℃); needn't keep in repair; lightning protection effect is good, and protection back level relay and silicon cell are because its distributed capacitance of torsion line circle is lower than 30 picofarads respectively.
Claims (3)
1, the high voltage bearing receiving end relay transformer of a kind of railway AC track circuit belongs to the relay transformer of AC track circuit receiving end in the railway signals equipment, four bolts is arranged as leading-out terminal, primary and secondary coil, shell and encapsulating material; It is characterized in that: adopt the C sections heart (7), primary and secondary coil (5) (6) is respectively on two posts of C sections core (7), elementary layer insulation adopts the mylar of 0.11 millimeters thick, secondary layer insulation adopts the cable paper of 0.12 millimeters thick, terminal board (4) is the high frequency porcelain of plating, terminal bolt (3) is welded in the metal aperture on the terminal board (4) and the coil lead of burn-oning (5) (6), metal cladding around the terminal board is so that weld with body seal, and the transformer assembling finishes and encapsulates with silicon rubber.
2, high insulated track relay transformer according to claim 1, it is characterized in that it is the high-strength enamelled wire of 1.16～1.2 millimeter 30～45 circle that primary coil (5) adopts diameter, secondary coil (6) adopts 0.21～0.23 millimeter, and the high-strength enamelled wire of 700～900 circles is respectively on two posts of C sections core.
3, high insulated track relay transformer according to claim 1 is characterized in that coil (5) (6) uses vacuum impregnation insulating varnish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203652 CN87203652U (en) | 1987-03-18 | 1987-03-18 | High insulated track trunking transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203652 CN87203652U (en) | 1987-03-18 | 1987-03-18 | High insulated track trunking transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87203652U true CN87203652U (en) | 1987-12-02 |
Family
ID=4819632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87203652 Withdrawn CN87203652U (en) | 1987-03-18 | 1987-03-18 | High insulated track trunking transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87203652U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663712B (en) * | 2007-04-12 | 2012-08-15 | Abb技术有限公司 | Outdoor electrical device with an improved resin insulation system |
| CN103474217A (en) * | 2013-10-09 | 2013-12-25 | 薛建仁 | Novel silicon rubber insulation dry-type power transformer |
| CN107112116A (en) * | 2014-10-07 | 2017-08-29 | Abb瑞士股份有限公司 | Vehicle transformer |
-
1987
- 1987-03-18 CN CN 87203652 patent/CN87203652U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663712B (en) * | 2007-04-12 | 2012-08-15 | Abb技术有限公司 | Outdoor electrical device with an improved resin insulation system |
| CN103474217A (en) * | 2013-10-09 | 2013-12-25 | 薛建仁 | Novel silicon rubber insulation dry-type power transformer |
| CN107112116A (en) * | 2014-10-07 | 2017-08-29 | Abb瑞士股份有限公司 | Vehicle transformer |
| CN107112116B (en) * | 2014-10-07 | 2020-03-03 | Abb瑞士股份有限公司 | Vehicle transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |