CN106684879A - Current conversion switch - Google Patents
Current conversion switch Download PDFInfo
- Publication number
- CN106684879A CN106684879A CN201510757085.2A CN201510757085A CN106684879A CN 106684879 A CN106684879 A CN 106684879A CN 201510757085 A CN201510757085 A CN 201510757085A CN 106684879 A CN106684879 A CN 106684879A
- Authority
- CN
- China
- Prior art keywords
- current
- thermal relays
- time
- switch
- transformer
- 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- Withdrawn
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Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a current conversion switch. The current conversion switch is characterized by comprising a time-control switch, an intermediate relay ZJ and two thermal relays RJ1 and RJ2, wherein a signal outgoing line of the time-control switch is connected to a coil control signal interface of the intermediate relay ZJ; a normally open interface and a normally closed interface of the intermediate relay ZJ are connected to the normally closed interfaces of the thermal relays RJ1 and RJ2 respectively; three phases of the thermal relays RJ1 and RJ2 are connected in series respectively; the time-control switch is a microcomputer time-control switch; and the thermal relays RJ1 and RJ2 are three-phase thermal relays. The current conversion switch device is connected to a circuit, current signals of the thermal relays are introduced through a current transformer on a distribution board or an added current transformer, power on/off of an AC contactor is controlled, and the target of load control is achieved through adjusting current of the thermal relays. The capacity of the transformer can be developed to the maximum extent and the power demands of customers can be met to the maximum extent under the condition of protecting the security of a distribution transformer and power distribution equipment.
Description
Technical field
The present invention relates to a kind of electric switch, and in particular to a kind of rheotrope.
Background technology
Decline now with level of ground water, agriculture fills equipment power consumption and is continuously increased, agriculture fill power load present it is seasonal strong, while
The features such as rate is high.Existing part agriculture fills the situation that capacity of distribution transform can not meet all load standard-sized sheets, so fills peak of power consumption in agriculture
During the phase, easily there is Overload of Power Distribution Transformers operation, transformer burnout failure can be all caused every year, in addition after overload operation also
The increasing of line loss can be caused.
At present the traditional way of control load is manual control load condition, and one is that whole day carries out tour monitoring when agriculture is filled, time-consuming
Arduously, poor effect；Two is to be stopped in turn to send according to time branch, can solve distribution transforming over capacity but to can't resolve single line super negative
Lotus situation, affects big, effect on driving birds is not good to line loss.At present by (zero gram) solution of high voltage fuse, 400V goes out transformer overload
Line is solved by air switch and RT0 fuses, and this traditional protection device low cost, wiring is simple, in protection short circuit etc.
It is swift in motion during high current, effect is obvious.But because the blowout current of melt is generally 1.5-2.5 times of rated current, so super negative
During lotus, when not reaching the action current of fuse and air switch, it is impossible to load is cut off in time, so as to distribution transformer can not be protected
Device safe operation.
Distribution transforming in a short time cannot increase-volume when, how to play to greatest extent in the case of protection distribution transforming and controller switching equipment safety
Transformer capacity and customer electricity demand is met to greatest extent, be urgent problem.
The content of the invention
The invention aims to solve the above problems, a kind of rheotrope, it is characterised in that including time control
Switch, intermediate relay ZJ, two electrothermal relays RJ1 and RJ2；The time switch signal outlet be connected to the centre after
The coil control signal interface of electrical equipment ZJ, the normally closed normally opened interface of the intermediate relay ZJ is respectively connecting to the electrothermal relay
The normally closed interface of RJ1 and RJ2, the three-phase of the electrothermal relay RJ1 and RJ2 is connected respectively.The time switch is micro computer
Time switch.The electrothermal relay RJ1 and RJ2 is three-phase electrothermal relay.
The rheotrope device is connected to after circuit, by current transformer on distribution board or current transformer is installed additional
Electrothermal relay current signal is introduced, the power transmission of stopping of A.C. contactor is controlled, reached by the electric current of adjustment electrothermal relay negative
The purpose of lotus control.
Description of the drawings
Fig. 1 is the rheotrope schematic diagram of the present invention.
In figure：1 bus/A.C. contactor.；2. the second control loop；3. current loop；4. the first control loop；5. time control
Switching circuitry.
Specific embodiment
The present invention a kind of rheotrope, it is characterised in that including time switch, intermediate relay ZJ, two
Electrothermal relay RJ1 and RJ2；The time switch signal outlet is connected to the coil control signal interface of the intermediate relay ZJ,
The normally closed normally opened interface of the intermediate relay ZJ is respectively connecting to the normally closed interface of the electrothermal relay RJ1 and RJ2, the heat
The three-phase of relay RJ1 and RJ2 is connected respectively.The time switch is microcomputer time-controlled switch.The electrothermal relay RJ1 and
RJ2 is three-phase electrothermal relay.
Time switch signal outlet is connected to the coil control signal interface of intermediate relay ZJ, and time switch can set as required
Timing section arbitrarily controls the adhesive of intermediate relay ZJ coil.The normally closed normally opened interface of intermediate relay ZJ is respectively connecting to two
The normally closed interface of electrothermal relay RJ1 and RJ2.Two electrothermal relay RJ1 and RJ2 connect group with current transformer TA on bus
Into loop.The normally closed signal outlets of electrothermal relay RJ1 and RJ2 are connected on the control A.C. contactor of branch circuit.When bus sensing
When electric current exceedes current limit, electrothermal relay RJ1 or RJ2 action, normally closed coil disconnection can control branch A.C. contactor and open
Close, so as to control branch power transmission is stopped.Whole device is by setting time switch, two branch circuits of control that can be at times
Stop power transmission.
For example：According to line map, set time switch Monday as normally closed signal, Tuesday be normally opened signal when, during Monday in
Between relay coil be failure to actuate, the normal power transmission of the first control loop does not trip.When bus excess load, current transformer loop electricity
Stream exceedes electrothermal relay setting value, and electrothermal relay action, normally closed change is normally opened, the second control loop power-off, and bus load declines.
Time control switch motion during Tuesday, auxiliary reclay coil adhesive, normally closed change is normally opened, normally opened to become normally closed.Second control loop is normal
Power transmission does not trip.When excess load electric current increases, the first loop power-off, load declines.
This device may insure normal power transmission all the way, and ensure that transformer will not excess load operation.
Claims (3)
1. a kind of rheotrope, it is characterised in that including time switch, intermediate relay ZJ, two electrothermal relays
RJ1 and RJ2；The time switch signal outlet is connected to the coil control signal interface of the intermediate relay ZJ, it is described in
Between the normally closed normally opened interface of relay ZJ be respectively connecting to the normally closed interface of the electrothermal relay RJ1 and RJ2, the electrothermal relay
The three-phase of RJ1 and RJ2 is connected respectively.
2. a kind of rheotrope as claimed in claim 1, it is characterised in that：When the time switch is micro computer
Control switch.
3. a kind of rheotrope as claimed in claim 1, it is characterised in that：The electrothermal relay RJ1 and RJ2
For three-phase electrothermal relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757085.2A CN106684879A (en) | 2015-11-07 | 2015-11-07 | Current conversion switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757085.2A CN106684879A (en) | 2015-11-07 | 2015-11-07 | Current conversion switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684879A true CN106684879A (en) | 2017-05-17 |
Family
ID=58864150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510757085.2A Withdrawn CN106684879A (en) | 2015-11-07 | 2015-11-07 | Current conversion switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106684879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791344A (en) * | 2021-11-17 | 2021-12-14 | 西安西电高压开关有限责任公司 | Switching test loop and method for switching current of high-voltage isolating switch |
-
2015
- 2015-11-07 CN CN201510757085.2A patent/CN106684879A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791344A (en) * | 2021-11-17 | 2021-12-14 | 西安西电高压开关有限责任公司 | Switching test loop and method for switching current of high-voltage isolating switch |
| CN113791344B (en) * | 2021-11-17 | 2022-06-28 | 西安西电高压开关有限责任公司 | Switching test loop and method for switching current of high-voltage isolating switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170517 |
|
| WW01 | Invention patent application withdrawn after publication |