CN108122717A - A kind of breaker - Google Patents
A kind of breaker Download PDFInfo
- Publication number
- CN108122717A CN108122717A CN201711393477.0A CN201711393477A CN108122717A CN 108122717 A CN108122717 A CN 108122717A CN 201711393477 A CN201711393477 A CN 201711393477A CN 108122717 A CN108122717 A CN 108122717A
- Authority
- CN
- China
- Prior art keywords
- terminal
- buckle releaser
- proportional amplifier
- connection
- arc
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
- H01H2071/124—Automatic release mechanisms with or without manual release using a solid-state trip unit with a hybrid structure, the solid state trip device being combined with a thermal or a electromagnetic trip
Landscapes
- Breakers (AREA)
Abstract
The present invention relates to a kind of breaker, including pedestal, lower connecting terminal, zero sequence current mutual inductor, the conducting wire that is flexible coupling, buckle releaser, operating mechanism, moving contact, static contact, arc-chutes, upper connecting terminal, plastic shell；Mainly buckle releaser connects an electronics trip gear, and arc-chutes use vacuum interrupter；The electronics trip gear is made of signal amplification circuit, magnetic silicon controlled switch circuit, electromagnetic control apparatus, signal amplification circuit includes proportional amplifier, input signal adjuster, the input terminal of input signal adjuster and the secondary winding of zero sequence current mutual inductor connect, output terminal is connected with proportional amplifier input terminal, the output terminal of proportional amplifier connects silicon-controlled signal control terminal, the electromagnetic coil of electromagnetic control apparatus is connected with magnetic silicon controlled switch circuit, the control stick connection of magnetic core one end and buckle releaser.Short with dropout arcing, drop-away current is adjusted, and dropout precision is high, reliable to the person and equipment safety protective value.
Description
Technical field
The invention belongs to Low Voltage Electrical Apparatus, specifically on a kind of breaker.
Background technology
At present, plastic enclosure leakage circuit breaker is mainly used in AC-DC Circuit, as distribution or electromotor overload, short circuit,
Infrequently connection and disjunction under under-voltage and over-pressed protection switch and normal operating condition as circuit are used.Existing plastic shell
Leakage circuit breakers is generally using air blowout room, spring complex triip.Its main shortcoming is：The arcing that trips is long, threads off
Current stability is poor, and dropout precision is low, poor to the person and equipment safety protection reliability.
The content of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, a kind of tripping arcing of offer is short, drop-away current is adjustable
Section, stability are good, and dropout precision is high, to the person and the reliable breaker of equipment safety protective value.
Technical scheme include pedestal, lower connecting terminal, zero sequence current mutual inductor, the conducting wire that is flexible coupling, buckle releaser,
Operating mechanism, moving contact, static contact, arc-chutes, upper connecting terminal, plastic shell, one end of moving contact is located at static contact goes out
In arc chamber, the other end is connected with the conducting wire one end that is flexible coupling, and the conducting wire other end that is flexible coupling passes through lower connection busbar and lower connecting terminal
Connection, zero sequence current mutual inductor are mounted on lower connection busbar, and static contact is connected by upper connection busbar with upper connecting terminal, is moved
Buckle releaser and operating mechanism are connected on contact；Mainly buckle releaser connects an electronics trip gear, and arc-chutes use vacuum extinction
Room；The electronics trip gear is made of signal amplification circuit, magnetic silicon controlled switch circuit, electromagnetic control apparatus, signal amplification electricity
Road includes proportional amplifier, input signal adjuster, and the input terminal of input signal adjuster passes through rectification circuit and zero-sequence current
The secondary winding connection of mutual inductor, the output terminal of input signal adjuster are connected with proportional amplifier input terminal, proportional amplifier
Output terminal connect silicon-controlled signal control terminal by resistor voltage divider circuit, the electromagnetic coil of electromagnetic control apparatus with it is silicon-controlled
Switching circuit in series, magnetic core one end of electromagnetic control apparatus and the control stick of buckle releaser connect.
It is an advantage of the invention that using electronic trip unit and vacuum interrupter, arcing is short during dropout, and drop-away current is adjusted,
Dropout precision is high, reliable to the person and equipment safety protective value.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
Breaker as shown in Figure 1, including pedestal 1, lower connecting terminal 2, zero sequence current mutual inductor 3, the conducting wire 4 that is flexible coupling,
Buckle releaser, operating mechanism 6, moving contact 7, static contact 8, arc-chutes 9, upper connecting terminal 10 and plastic shell, one end of moving contact 7
It is located at static contact 8 in arc-chutes, the other end is connected with 4 one end of conducting wire that is flexible coupling, and 4 other end of conducting wire that is flexible coupling passes through lower connection
Busbar is connected with lower connecting terminal 2, and zero sequence current mutual inductor 3 is mounted on lower connection busbar, and static contact 8 passes through upper connection busbar
It is connected with upper connecting terminal 10, connection buckle releaser and operating mechanism on moving contact 7, the structure of buckle releaser and operating mechanism is known
Technology is not described in detail herein；Buckle releaser connects an electronics trip gear 5, and arc-chutes 9 use vacuum interrupter, and raising is gone out
Arc performance shortens arcing；The electronics trip gear is by signal amplification circuit, magnetic silicon controlled switch circuit, electromagnetic control apparatus group
Into signal amplification circuit includes proportional amplifier, input signal adjuster, and the input terminal of input signal adjuster passes through rectified current
Road is connected with the secondary winding of zero sequence current mutual inductor 3, and output terminal and the proportional amplifier input terminal of input signal adjuster connect
Connect, the output current of the secondary winding of zero sequence current mutual inductor 3 after the adjustable bleeder circuit partial pressure of input signal adjuster,
Proportional amplifier input terminal is inputted, realizes the adjusting to drop-away current setting value.The output terminal of proportional amplifier passes through resistance point
Silicon-controlled signal control terminal in volt circuit connection magnetic silicon controlled switch circuit, by the defeated of the secondary winding of zero sequence current mutual inductor 3
Silicon-controlled, raising dropout precision and the protection reliability to the person, equipment are controlled after going out signal amplification.The electricity of electromagnetic control apparatus
Magnetic coil is connected with magnetic silicon controlled switch circuit, and magnetic core one end of electromagnetic control apparatus and the control stick of buckle releaser connect, when controllable
Silicon turn on when, electromagnetic coil obtain it is electric, magnetic core promote control stick buckle releaser is made to thread off.Operating mechanism 6 is equipped with manual joystick, for hand
Dynamic operating breaker.
Claims (1)
1. a kind of breaker, including pedestal（1）, lower connecting terminal（2）, zero sequence current mutual inductor（3）, be flexible coupling conducting wire（4）, it is de-
Detain device, operating mechanism（6）, moving contact（7）, static contact（8）, arc-chutes（9）, upper connecting terminal（10）And plastic shell, it moves and touches
Head（7）One end and static contact（8）In arc-chutes, the other end and the conducting wire that is flexible coupling（4）One end connects, and be flexible coupling conducting wire
（4）The other end passes through lower connection busbar and lower connecting terminal（2）Connection, zero sequence current mutual inductor（3）Mounted on lower connection busbar
On, static contact（8）Pass through upper connection busbar and upper connecting terminal（10）Connection, moving contact（7）Upper connection buckle releaser and operation machine
Structure；It is characterized in that buckle releaser connects an electronics trip gear（5）, arc-chutes（9）Using vacuum interrupter；The electronics, which is threaded off, to be filled
Put and be made of signal amplification circuit, magnetic silicon controlled switch circuit, electromagnetic control apparatus, signal amplification circuit include proportional amplifier,
Input signal adjuster, the input terminal of input signal adjuster pass through rectification circuit and zero sequence current mutual inductor（3）It is secondary around
Group connection, the output terminal of input signal adjuster are connected with proportional amplifier input terminal, and the output terminal of proportional amplifier passes through electricity
Hinder silicon-controlled signal control terminal in bleeder circuit connection magnetic silicon controlled switch circuit, the electromagnetic coil of electromagnetic control apparatus with it is controllable
Transwitch circuit connected in series, magnetic core one end of electromagnetic control apparatus and the control stick of buckle releaser connect, operating mechanism（6）Equipped with manual
Control stick, for breaker is manually operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393477.0A CN108122717A (en) | 2017-12-21 | 2017-12-21 | A kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711393477.0A CN108122717A (en) | 2017-12-21 | 2017-12-21 | A kind of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108122717A true CN108122717A (en) | 2018-06-05 |
Family
ID=62230842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711393477.0A Withdrawn CN108122717A (en) | 2017-12-21 | 2017-12-21 | A kind of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108122717A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3224098B2 (en) * | 1988-08-01 | 2001-10-29 | イートン コーポレイション | Circuit breaker and current transformer removal method |
| CN202210499U (en) * | 2011-09-20 | 2012-05-02 | 胡俊兵 | Low voltage plastic housing intelligent breaker |
| CN205845867U (en) * | 2016-07-25 | 2016-12-28 | 杭州梅兰日兰电器有限公司 | Rccb |
| CN106655085A (en) * | 2016-08-31 | 2017-05-10 | 兰溪市中冠电气科技有限公司 | Grounding protection apparatus preventing personal electric shock |
-
2017
- 2017-12-21 CN CN201711393477.0A patent/CN108122717A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3224098B2 (en) * | 1988-08-01 | 2001-10-29 | イートン コーポレイション | Circuit breaker and current transformer removal method |
| CN202210499U (en) * | 2011-09-20 | 2012-05-02 | 胡俊兵 | Low voltage plastic housing intelligent breaker |
| CN205845867U (en) * | 2016-07-25 | 2016-12-28 | 杭州梅兰日兰电器有限公司 | Rccb |
| CN106655085A (en) * | 2016-08-31 | 2017-05-10 | 兰溪市中冠电气科技有限公司 | Grounding protection apparatus preventing personal electric shock |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180605 |
|
| WW01 | Invention patent application withdrawn after publication |