CN209516635U

CN209516635U - Silicon-controlled regulating switch reactive power compensator

Info

Publication number: CN209516635U
Application number: CN201920274935.7U
Authority: CN
Inventors: 卢悦; 丁仕彬
Original assignee: Jiangsu Laiti Electric Co Ltd
Current assignee: Jiangsu Laiti Electric Co Ltd
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2019-10-18
Anticipated expiration: 2029-03-05

Abstract

The utility model provides silicon-controlled regulating switch reactive power compensator, including temperature control loop, operating passing zero circuit, and control signal is followed by the trigger circuit in operating passing zero circuit through temperature control loop；Temperature control loop includes: power supply, temperature detect switch (TDS), fan, and the ground terminal ground connection of fan, DC power supply termination diode D1 cathode, diode D1 anode connect temperature detect switch (TDS), another termination positive pole of temperature detect switch (TDS)；Power cathode is grounded after filter capacitor CR1, and operating passing zero ensures that switching without surge, no-spark etc., and then significantly extends the service life of capacitor, saves the cost of maintenance and replacement；The series design of reactor and capacitor can effectively eliminate harmonic wave；Advanced temperature control technology, so that silicon-controlled regulating switch safe and stable operation within the specified temperature range.

Description

Silicon-controlled regulating switch reactive power compensator

Technical field

The utility model relates generally to silicon-controlled adjusting field of switches more particularly to silicon-controlled regulating switch reactive compensation dress It sets.

Background technique

And frequent load equipment quick there is many variations in modern industry, traditional idle device (capacitor and Reactor) switching or regulating switch (contactor) can no longer meet in speed and in terms of the service life requirement of system.

Silicon-controlled regulating switch have operating passing zero, no-spark, without harmonic wave interference, current over-zero disjunction, noise be small, the service life The distinguishing features such as long, are well suited for for current reactive compensation field.

A kind of magnetic silicon controlled switch circuit with overload, short-circuit protection function of application number CN201120038756.7, including Sequentially connected trigger circuit (M2) and control circuit (M1), the magnetic silicon controlled switch circuit are characterized in that: further including electric current Sample circuit, protection trigger circuit, protection lock-in circuit and failure indicating circuit.When load occurs overloading or short circuit etc. is big Under current conditions, it is described have overload, short-circuit protection function magnetic silicon controlled switch circuit included by protection trigger circuit starting Work, automatically cuts off the circuit at silicon-controlled place within 20ms, and by locking protection circuit make it is silicon-controlled be no longer turned on, together When failure indicating circuit in indicator light lamp light, to remind user that this switchs controlled load failure and needs to exclude； It after powering off and excluding load faulty, then is powered, electronic switch is that is, silicon-controlled and be restored to normal Standby state, not by any damage It is bad.

Utility model content

The utility model provides silicon-controlled regulating switch reactive power compensator, comprising: temperature control loop, operating passing zero circuit, Control signal is followed by the trigger circuit in operating passing zero circuit through temperature control loop；Temperature control loop includes: power supply, temperature detect switch (TDS), fan, The ground terminal ground connection of fan, DC power supply termination diode D1 cathode, diode D1 anode connect temperature detect switch (TDS), temperature detect switch (TDS) it is another One termination positive pole；Power cathode is grounded after filter capacitor CR1.

Preferably, operating passing zero circuit includes: that optocoupler, no-voltage detection, trigger circuit and buffer, power grid pass through optocoupler Switch control circuit is followed by optocoupler, and optocoupler output connects no-voltage detection, and no-voltage detection output contacts Power Generation Road, triggering electricity The output on road terminates buffer.

Preferably, control signal output contacts Power Generation Road, connects normally closed temperature switch on circuit, temperature detect switch (TDS) it is another The cathode contacts of the anode of terminating diode D, diode D send out device.

Preferably, optical coupled switch control loop includes: thyristor G1, G2, and the control electrode of thyristor G1, G2 all connect buffer Output end, the anode of thyristor G1 gets access to grid, cathode connects the anode of thyristor G2, and the cathode of thyristor G2 gets access to grid and resistance R Common end.

Preferably, the other end, the cathode of the positive connecting resistance R1 of optocoupler input connects the cathode of thyristor G1 and the sun of G2 Extremely.

Preferably, temperature control loop further includes capacitor C1, DC power supply terminal, the ground terminal of two end Jie fan of capacitor C1.

Preferably, temperature control loop further include instruction circuit, including resistance R1 and indicator light RED, resistance R1 connect positive pole, Another termination indicator light RED anode of resistance R1, indicator light RED minus earth.

The utility model has the beneficial effects that operating passing zero ensures that switching prolongs without surge, no-spark etc., and then significantly The service life of capacitor has been grown, the cost of maintenance and replacement is saved；The series design of reactor and capacitor can effectively eliminate Harmonic wave；Advanced temperature control technology, so that silicon-controlled regulating switch safe and stable operation within the specified temperature range.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model；

Fig. 2 is the circuit diagram about temperature control loop of the utility model；

Specific embodiment

The utility model includes: temperature control loop, operating passing zero circuit.

Shown in Fig. 2, temperature control loop includes: power supply, temperature detect switch (TDS), fan, the ground terminal ground connection of fan, DC power supply termination Diode D1 cathode, diode D1 anode connect temperature detect switch (TDS), another termination positive pole of temperature detect switch (TDS)；Power cathode is through filtering It is grounded after capacitor CR1, using 12V DC fan, when temperature reaches set temperature, temperature detect switch (TDS) closure, starting fan.

Further, forward-, series diode D1 prevents fan from burning out when entering backward voltage by misconnection in temperature control loop.

Shown in Fig. 1, control signal is followed by the trigger circuit in operating passing zero circuit, operating passing zero circuit packet through temperature control loop Include: optocoupler, no-voltage detection, trigger circuit and buffer, power grid are followed by optocoupler, optocoupler output by optical coupled switch control loop No-voltage detection is terminated, no-voltage detection output contacts Power Generation Road, and the output of trigger circuit terminates buffer.

In operational process, when temperature is excessively high, when reaching preset upper limit, normally closed temperature switch is disconnected, and cuts off trigger circuit Signal input is controlled, equipment is protected.

Preferably, control signal output contacts Power Generation Road, connects normally closed temperature switch on circuit, temperature detect switch (TDS) it is another The cathode contacts of the anode of terminating diode D, diode D send out device, circuit in series diode, when outer signal positive and negative anodes are reversed When, it can effectively protect subsequent conditioning circuit.

Preferably, optical coupled switch control loop includes: thyristor G1, G2, and the control electrode of thyristor G1, G2 all connect buffer Output end, the anode of thyristor G1 gets access to grid, cathode connects the anode of thyristor G2, and the cathode of thyristor G2 gets access to grid and resistance R Common end, at K2 (network voltage) voltage be higher than K1 when, optocoupler conducting, capacitor charging；When capacitor charging to power grid electricity When pressing identical, i.e. voltage is equal to K1 point voltage at K2, and optocoupler shutdown, no-voltage detection device is by detecting this jump process to touching One signal of Power Generation Road is completed to silicon-controlled on-off.

The principles and effects of present patent application are only illustrated in above-described embodiment, not for limitation this patent Shen Please.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to present patent application Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of present patent application All equivalent modifications or change completed under mind and technical idea, the claim that should be asked by this patent are covered.

Claims

1. silicon-controlled regulating switch reactive power compensator, it is characterised in that: include: temperature control loop, operating passing zero circuit, control letter The trigger circuit in operating passing zero circuit number is followed by through temperature control loop；Temperature control loop includes: power supply, temperature detect switch (TDS), fan, fan Ground terminal ground connection, DC power supply termination diode D1 cathode, diode D1 anode connect temperature detect switch (TDS), another termination of temperature detect switch (TDS) Positive pole；Power cathode is grounded after filter capacitor CR1.

2. silicon-controlled regulating switch reactive power compensator according to claim 1, it is characterised in that: operating passing zero circuit packet Include: optocoupler, no-voltage detection, trigger circuit and buffer, power grid are followed by optocoupler, optocoupler output by optical coupled switch control loop No-voltage detection is terminated, no-voltage detection output contacts Power Generation Road, and the output of trigger circuit terminates buffer.

3. silicon-controlled regulating switch reactive power compensator according to claim 2, it is characterised in that: control signal output Power Generation Road is contacted, connects normally closed temperature switch, the anode of another terminating diode D of temperature detect switch (TDS), the yin of diode D on circuit Pole connects trigger.

4. silicon-controlled regulating switch reactive power compensator according to claim 2, it is characterised in that: optical coupled switch controls back Road includes: thyristor G1, G2, and the control electrode of thyristor G1, G2 all connect buffer output end, the anode of thyristor G1 gets access to grid, Cathode connects the anode of thyristor G2, the common end that the cathode of thyristor G2 gets access to grid with resistance R.

5. silicon-controlled regulating switch reactive power compensator according to claim 4, it is characterised in that: optocoupler input is just The other end, the cathode of pole connecting resistance R1 connects the cathode of thyristor G1 and the anode tap of G2.

6. silicon-controlled regulating switch reactive power compensator according to claim 1, it is characterised in that: temperature control loop further includes DC power supply terminal, the ground terminal of two end Jie fan of capacitor C1, capacitor C1.

7. silicon-controlled regulating switch reactive power compensator according to claim 1, it is characterised in that: temperature control loop further includes Indicate that circuit, including resistance R1 and indicator light RED, resistance R1 connect another termination indicator light RED sun of positive pole, resistance R1 Pole, indicator light RED minus earth.