CN208478050U - A kind of earthing latching electromagnet control device - Google Patents
A kind of earthing latching electromagnet control device Download PDFInfo
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- CN208478050U CN208478050U CN201820907662.0U CN201820907662U CN208478050U CN 208478050 U CN208478050 U CN 208478050U CN 201820907662 U CN201820907662 U CN 201820907662U CN 208478050 U CN208478050 U CN 208478050U
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- varistor
- latching
- latching electromagnet
- earthing
- circuit board
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Abstract
The utility model devises a kind of earthing latching electromagnet control device; including control circuit board and latching electromagnet; the control circuit board is designed using connection sheet; select the element for having universal flexible highly reliable; AC220V/DC220V wiring board bonus point repoussage flowing plate 5w9kJ cement resistor; connect 110V, 4400 Ω latching electromagnets; voltage is set to be lower, resistors match; by increasing partial pressure cowling panel and varistor; using the nonlinear characteristic of varistor, to realize the protection to late-class circuit.
Description
Technical field
The utility model relates to field of power systems, more particularly, to a kind of earthing latching electromagnet control device.
Background technique
10kV KYN switchgear is mainly grounded by switch cabinet body, handcart type breaker (switch), current transformer, outlet
Disconnecting link and therebetween interbus composition, be in domestic 10kV voltage class the maximum switchgear type of the most frequently used and ownership it
One.
Wherein door of switch cabinet, switch cart, grounding switch be this switchgear can actuating component, there is non-between them
Normal strict interlock logic relationship, referred to as " five is anti-" locking.Once " five is anti-" locking failure will cause many unpredictable
Accident event.This requires have a set of very reliable mechanical interlocks between them to guarantee that the logic between them is closed
System, prevents misoperation fault.
And capacitor dolly chassis with capacitor earthing knife-switch is latched by high-speed double electromagnet, it, will when the electromagnet breaks down
Cause car switch that can not shake out from operating position to testing position failure.Comprehensive operating condition in recent years, control power supply are
The 10kV capacitor car switch chassis latching electromagnet of DC220V easily occurs burning phenomenon, needs bus to have a power failure and handles defect.
However, the normal charging operation of 10kV capacitor car switch chassis latching electromagnet that control power supply is DC220V, long
Phase electrification easily occurs burning phenomenon；When the electromagnet breaks down, will lead to car switch can not be shaken out from operating position to
Testing position failure needs bus to have a power failure and handles defect, low efficiency, and speed is slow.
Utility model content
The utility model is when electromagnet being overcome to break down, and will lead to car switch can not shake out from operating position to examination
Position failure is tested, needs bus to have a power failure and handles defect, low efficiency, speed is slow, provides a kind of earthing latching electromagnet control dress
It sets.
Earthing latching electromagnet control device includes control circuit board and latching electromagnet, and the control circuit board uses
Connection sheet design, selects the element for having universal flexible highly reliable, AC220V/DC220V wiring board bonus point repoussage flowing plate (5w9kJ
Cement resistor), 110V, 4400 Ω latching electromagnets are connected, so that voltage is lower, resistors match, is also added on the control circuit board
Varistor, varistor are a kind of votage limit type protection devices, using the nonlinear characteristic of varistor, when overvoltage occurs
In two interpolars of varistor, varistor can be by voltage clamping to a relatively-stationary voltage value, to realize to rear
The protection of grade circuit.
When the voltage being added on varistor is lower than its threshold value, the electric current for flowing through it is minimum, it is equivalent to a resistance
It is worth infinitely great resistance.That is, it is equivalent to an off-state when the voltage being added in above it is lower than its threshold value
Switch.When the voltage being added on varistor is more than its threshold value, the electric current for flowing through it increases sharply, it is equivalent to resistance value infinitesimal
Resistance.That is, it is equivalent to the switch of a closed state when the voltage being added in above it is higher than its threshold value.Institute
Even if being electrified for a long time temperature with latching electromagnet is also always held at 80 degree or so, temperature does not have to again toward rising, and 4.4K is closed
Lock electromagnet is thicker than 13K latching electromagnet line footpath, good heat dissipation, durability are good, starting property is strong, it is ensured that the locking of closing circuit will not
It burns.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
By increasing partial pressure cowling panel and varistor, using the nonlinear characteristic of varistor, when overvoltage appears in
Two interpolars of varistor, varistor can be by voltage clampings to a relatively-stationary voltage value, to realize to rear class
The protection of circuit.When the voltage being added in above it is higher than its threshold value, it is equivalent to the switch of a closed state.Even if so
Latching electromagnet is electrified for a long time temperature and is also always held at 80 degree or so, and temperature does not have to reduce electromagnet temperature rise toward rising again, prolong
The long electromagnet service life, and 4.4K latching electromagnet is thicker than 13K latching electromagnet line footpath, good heat dissipation, durability are good, starting property
By force, it is ensured that the locking of closing circuit will not be burnt.
Detailed description of the invention
Fig. 1 is earthing latching electromagnet control device pictorial diagram.
Fig. 2 is earthing latching electromagnet control device circuit structure diagram.
Specific embodiment
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Shown in Fig. 1, earthing latching electromagnet control device includes control circuit board and latching electromagnet, the control line
Road plate is designed using connection sheet, selects the element for having universal flexible highly reliable, AC220V/DC220V wiring board bonus point repoussage stream
Plate 5w9kJ cement resistor connects 110V, 4400 Ω latching electromagnets, so that voltage is lower, resistors match.
Varistor is also added on the control circuit board, varistor is a kind of votage limit type protection device, and utilization is pressure-sensitive
The nonlinear characteristic of resistance, when overvoltage appears in two interpolars of varistor, varistor can be by voltage clamping to one
Relatively-stationary voltage value, to realize the protection to late-class circuit.When the voltage being added on varistor is lower than its threshold value
When, the electric current for flowing through it is minimum, it is equivalent to the resistance of a resistance value infinity.That is, when the voltage being added in above it
When lower than its threshold value, it is equivalent to the switch of an off-state.When the voltage being added on varistor is more than its threshold value,
The electric current for flowing through it increases sharply, it is equivalent to the infinitesimal resistance of resistance value.That is, when the voltage being added in above it is higher than its threshold
When value, it is equivalent to the switch of a closed state.So even if latching electromagnet is electrified for a long time temperature and is also always held at 80
Degree left and right, temperature does not have to again toward rising, and 4.4K latching electromagnet ratio 13K latching electromagnet line footpath is thick, good heat dissipation, durability
Well, starting property is strong, it is ensured that the locking of closing circuit will not be burnt.
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent；
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 (1)
1. a kind of earthing latching electromagnet control device, it is characterised in that: earthing latching electromagnet control device includes control
Wiring board and latching electromagnet processed, the control circuit board are designed using connection sheet, select AC220V/DC220V control circuit board
Bonus point repoussage flowing plate 5W9KJ cement resistor connects 110V, 4400 Ω latching electromagnets, so that voltage is lower, resistors match, described
Varistor is also added on control circuit board, using the nonlinear characteristic of varistor, when overvoltage appears in varistor
Two interpolars, varistor is by voltage clamping to a relatively-stationary voltage value, to realize the protection to late-class circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907662.0U CN208478050U (en) | 2018-06-12 | 2018-06-12 | A kind of earthing latching electromagnet control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907662.0U CN208478050U (en) | 2018-06-12 | 2018-06-12 | A kind of earthing latching electromagnet control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478050U true CN208478050U (en) | 2019-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820907662.0U Active CN208478050U (en) | 2018-06-12 | 2018-06-12 | A kind of earthing latching electromagnet control device |
Country Status (1)
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| CN (1) | CN208478050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597728A (en) * | 2018-06-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of earthing latching electromagnet control device |
-
2018
- 2018-06-12 CN CN201820907662.0U patent/CN208478050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597728A (en) * | 2018-06-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of earthing latching electromagnet control device |
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