CN202749830U - Composite inductive switch - Google Patents
Composite inductive switch Download PDFInfo
- Publication number
- CN202749830U CN202749830U CN 201220469214 CN201220469214U CN202749830U CN 202749830 U CN202749830 U CN 202749830U CN 201220469214 CN201220469214 CN 201220469214 CN 201220469214 U CN201220469214 U CN 201220469214U CN 202749830 U CN202749830 U CN 202749830U
- Authority
- CN
- China
- Prior art keywords
- infrared induction
- switch
- combination switch
- cover plate
- composite
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Radiation-Therapy Devices (AREA)
Abstract
Disclosed in the utility model is a composite inductive switch that comprises a microprocessor, an infrared induction device, a silicon controlled switch, and a circuit breaker. The silicon controlled switch and the infrared induction device are connected with the microprocessor. Specifically, the infrared induction device further includes a cover plate, a probe housing, an electronic circuit board, and a lens; the cover edge of the cover plate is in a horn shape; an infrared induction port and the lens are arranged at the front end of the probe housing; the electronic circuit board is arranged between the probe housing and the cover plate; and the circuit breaker is arranged at a wiring terminal of the composite switch. According to the above-mentioned scheme provided by the utility model, the composite switch absorbs advantages of zero-voltage switching and zero-current cutting-off of the thyristor as well as small conduction internal resistance of the contactor and heating-free property, so that defects including inrush current arc generation caused by capacitor switching by a contactor switch can be overcome. Therefore, the composite inductive switch is an ideal novel composite switch for capacitor switching of urban and rural power grid transformation projects.
Description
Technical field
Switching control device when the utility model relates to a kind of low-voltage power electric network reactive compensation and makes Power Capacitors refers in particular to a kind of induction combination switch.
Background technology
Carried out the element of low-pressure reactive compensation power capacitor switching task, the normal operation A.C. contactor in the past.When using the alternating electromagnetic contactor, owing to shove in the moment generation of capacitor break-make, the contact of contactor is burnt out easily; During capacitor put into operation, itself not only had power consumption the electromagnetic contactor coil, and the possibility of also burning because of heating is very big, so useful life is short, poor stability.
The utility model content
The purpose of this utility model is to provide a kind of induction combination switch, and it has solved the problem that above-mentioned alternating electromagnetic contactor exists, and is not only safe but also reliable.
For achieving the above object, the solution that the utility model is taked is:
A kind of induction combination switch, comprise microprocessor, infrared induction device, reverse-blocking tetrode thyristor, circuit breaker, described reverse-blocking tetrode thyristor is connected microprocessor with the infrared induction device, described infrared induction device further comprises cover plate, probing shell, electronic circuit board, lens, the lid eaves flare of described cover plate, be provided with infrared induction mouth, lens at the probing shell front end, between probing shell and the cover plate electronic circuit board be set, described circuit breaker is arranged on the combination switch terminals.
The described combination switch harmonic filter of connecting with the three-phase alternating voltage circuit output end.
Described combination switch and capacitor loops are installed discharge indicating lamp, and described indicator light is installed on the capacitor terminal.
Beneficial effect with respect to prior art is:
1, include microprocessor, the Based Intelligent Control capacitor switches.
2, with controllable silicon power on/off container group, without electric arc, no-flashy-flow, response is fast.
3, the conducting internal resistance is very little, does not produce harmonic wave, does not produce inrush phenomenon.
4, operating passing zero: the basic functional principle of combination switch is with reverse-blocking tetrode thyristor and magnetic latching relay and connects, realize that voltage zero-cross conducting and current over-zero disconnect, make combination switch have the advantage of reverse-blocking tetrode thyristor no-flashy-flow in the moment that switches on and off, and during normal the connection, have the advantage of physical switch idle.Its implementation is: during input in the conducting of voltage zero-cross moment control controllable silicon elder generation, stable after again with magnetic latching relay adhesive conducting; And when excision is first magnetic latching relay to be disconnected, and the controllable silicon delay zero-crossing disconnects, thereby realizes the zero passage excision.
5, antijamming capability is strong.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing induction combination switch provided by the utility model is carried out step explanation:
As shown in Figure 1, this responds to combination switch, comprise microprocessor, infrared induction device, reverse-blocking tetrode thyristor, circuit breaker, described reverse-blocking tetrode thyristor is connected microprocessor with the infrared induction device, described infrared induction device further comprises cover plate, probing shell, electronic circuit board, lens, the lid eaves flare of described cover plate, be provided with infrared induction mouth, lens at the probing shell front end, between probing shell and the cover plate electronic circuit board is set, described circuit breaker is arranged on the combination switch terminals.
The described combination switch harmonic filter of connecting with the three-phase alternating voltage circuit output end.
Described combination switch and capacitor loops are installed discharge indicating lamp, and described indicator light is installed on the capacitor terminal.
This combination switch uses and can finish desirable no-power compensation function with dynamic type (output of 1 2V direct current) controller, and the calculating of compensation arrangement total capacity is identical with the calculating of general static compensating device total capacity.
Be total to the capacitor of plerosis combination switch control, adopt the capacitor of three-phase delta connection, rated voltage is 0.4KV, and control signal is one, simultaneously conducting A, B, C three-phase; The capacitor that divides the control of plerosis combination switch, the capacitor of employing three-phase Y connection, rated voltage is 0.23KV, control signal is three, difference conducting A, B, C three-phase.
The main electrical scheme terminal of combination switch requires the connection of wire must use the 0T terminal stud.
The combination switch main circuit connects conductor cross-section and all selects by 1.5 times of specified phase current.
Described induction combination switch is that our company is according to a kind of combination switch that can carry out to shunt capacitor switching of low-voltage reactive compensator capable exploitation, it has absorbed the thyristor no-voltage and has dropped into, zero current excision and contactor conducting internal resistance are little, athermic advantage, having overcome the defectives such as the caused electric arc that shoves of contactless contactor switched capacitor, is that the optimal NEW TYPE OF COMPOSITE of city and countryside power grid modification engineering switched capacitor is opened the light.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (3)
1. induction combination switch, it is characterized in that: comprise microprocessor, infrared induction device, reverse-blocking tetrode thyristor, circuit breaker, described reverse-blocking tetrode thyristor is connected microprocessor with the infrared induction device, described infrared induction device further comprises cover plate, probing shell, electronic circuit board, lens, the lid eaves flare of described cover plate, be provided with infrared induction mouth, lens at the probing shell front end, between probing shell and the cover plate electronic circuit board is set, described circuit breaker is arranged on the combination switch terminals.
2. induction combination switch according to claim 1 is characterized in that: the described combination switch harmonic filter of connecting with the three-phase alternating voltage circuit output end.
3. induction combination switch according to claim 1 is characterized in that: described combination switch and capacitor loops are installed discharge indicating lamp, and described indicator light is installed on the capacitor terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469214 CN202749830U (en) | 2012-09-15 | 2012-09-15 | Composite inductive switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469214 CN202749830U (en) | 2012-09-15 | 2012-09-15 | Composite inductive switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202749830U true CN202749830U (en) | 2013-02-20 |
Family
ID=47709182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220469214 Expired - Fee Related CN202749830U (en) | 2012-09-15 | 2012-09-15 | Composite inductive switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202749830U (en) |
-
2012
- 2012-09-15 CN CN 201220469214 patent/CN202749830U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130915 |