CN209298889U - Distribution contactless voltage-regulating device - Google Patents
Distribution contactless voltage-regulating device Download PDFInfo
- Publication number
- CN209298889U CN209298889U CN201822225928.6U CN201822225928U CN209298889U CN 209298889 U CN209298889 U CN 209298889U CN 201822225928 U CN201822225928 U CN 201822225928U CN 209298889 U CN209298889 U CN 209298889U
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- thyristor
- transformer
- auto
- distribution
- regulating device
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Abstract
A kind of distribution contactless voltage-regulating device of the utility model, it include an auto-transformer, the left end lead-out wire of the auto-transformer is connected to zero curve, the right end lead-out wire of auto-transformer is connected to input terminal one through thyristor, and the centre tap of auto-transformer is connected to the input terminal one of phase-change switch through thyristor, the right end lead-out wire of auto-transformer is through thyristor and capacitance connection to zero curve, the output end that the right end lead-out wire of above-mentioned auto-transformer is constituted is connected to user load, and magnetic latching relay switch is parallel on above-mentioned thyristor.A kind of distribution contactless voltage-regulating device of the utility model, response quickly.
Description
Technical field
The utility model relates to a kind of contactless voltage-regulating devices, more particularly, to a kind of oncontacting applied in distribution network
Point regulator, belongs to technical field of electric equipment.
Background technique
Currently, there is a situation where voltage fluctuations for occasional in distribution network；At this point, being easy negative to the user side in power grid
Load causes adverse effect；Especially voltage swells when, be easy cause load overload, cause safety accident；For this purpose, there is part
It closes by the way of manual switching, the voltage and current value in power supply line is monitored by voltage current transformer, if electricity occurs
Pressure, which is sprung up, alarms, and power supply line is then manually cut off or switch on step-down transformer being depressured, to line electricity
Pressure is restored again after restoring to former power supply line；But voltage fluctuation often instantaneously occurs, the short time restores, according to artificial
Switching mode can not be responded in time, to still have security risk.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of distribution contactless voltage-regulating of response quickly dresses
It sets.
Purpose of the utility model is realized as follows:
A kind of distribution contactless voltage-regulating device, it is characterised in that: described device includes an auto-transformer, the self coupling
The left end lead-out wire of transformer is connected to zero curve, and the right end lead-out wire of auto-transformer is connected to input terminal one through thyristor, and
The centre tap of auto-transformer is connected to the input terminal one of phase-change switch, the right end lead-out wire warp of auto-transformer through thyristor
To zero curve, the output end that the right end lead-out wire of above-mentioned auto-transformer is constituted is connected to user load for thyristor and capacitance connection,
Magnetic latching relay switch is parallel on above-mentioned thyristor.
A kind of distribution contactless voltage-regulating device of the utility model, the distribution contactless voltage-regulating device also include control electricity
Road, the control circuit include the mutual inductor of concatenation on the transmission line, and the mutual inductor is connected to processor, the processing
The signal output end of device is connected to the control electrode of thyristor.
A kind of distribution contactless voltage-regulating device of the utility model, the A/B/C three-phase on transmission line of electricity is respectively through three electronics
Switch is connected to input terminal one.
A kind of distribution contactless voltage-regulating device of the utility model, the electronic switch include that thyristor and magnetic keep relay
Device switch, and magnetic latching relay switch is parallel with one another with thyristor；And the control electrode of thyristor is connected to the control of governor circuit
Output end processed.
Compared with prior art, the utility model has the beneficial effects that
The utility model is undertaken in the moment for putting into and cutting off by thyristor (being once called as silicon-controlled also known as silicon controlled rectifier (SCR))
Operating passing zero (i.e. voltage zero-cross when put into, when current over-zero, cuts off), then run by magnetic latching relay switch connection；Brilliant lock
The pipe switching response time switchs far faster than magnetic latching relay, so that utility model device voltage raising and reducing responds rapid nothing
Sluggishness protects the normal electricity consumption of user's lateral load；Meanwhile the operating passing zero of thyristor, have the characteristics that no-flashy-flow, and be connected
Time is extremely short, will not cause to generate heat, and magnetic latching relay switch is in actuation and disconnection moment does not all shove and spark, to power grid
Without impact, the safe and reliable of device operation ensure that.
Detailed description of the invention
Fig. 1 is a kind of circuit block diagram of distribution contactless voltage-regulating device of the utility model.
Specific embodiment
Referring to Fig. 1, the utility model relates to a kind of distribution contactless voltage-regulating device, described device includes that a self coupling becomes
Depressor, the left end lead-out wire of the auto-transformer are connected to zero curve, and the right end lead-out wire of auto-transformer is connected through thyristor
To input terminal one, and the centre tap of auto-transformer is connected to the input terminal one of phase-change switch, auto-transformer through thyristor
Right end lead-out wire through thyristor and capacitance connection to zero curve, the output end that the right end lead-out wire of above-mentioned auto-transformer is constituted connects
It is connected to user load, magnetic latching relay switch is parallel on above-mentioned thyristor；
Further, the distribution contactless voltage-regulating device also includes control circuit, and the control circuit includes string
Mutual inductor on the transmission line is connect, the mutual inductor is connected to processor, and the signal output end of the processor is connected to crystalline substance
The control electrode of brake tube；
Further, the A/B/C three-phase on transmission line of electricity is connected to input terminal one through three electronic switches respectively；Pass through electricity
Sub switch realizes the adjusting to three-phase imbalance, guarantees the stability of input；
Further, the electronic switch includes thyristor and magnetic latching relay switch, and magnetic latching relay is opened
It closes parallel with one another with thyristor；And the control electrode of thyristor is connected to the control output end of governor circuit.
When voltage is sprung up, control circuit obtains the voltage and current value on transmission line of electricity, and processor is according to voltage and current value
Variation, pass through the control to the thyristor on auto-transformer in two taps, realize buck or boost, to realize voltage
Fast and stable is adjusted.
In addition: it should be noted that above-mentioned specific embodiment is only a prioritization scheme of this patent, the skill of this field
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent..
Claims (4)
1. a kind of distribution contactless voltage-regulating device, it is characterised in that: described device includes an auto-transformer, and the self coupling becomes
The left end lead-out wire of depressor is connected to zero curve, and the right end lead-out wire of auto-transformer is connected to input terminal one through thyristor, and certainly
The centre tap of coupling transformer is connected to the input terminal one of phase-change switch through thyristor, and the right end lead-out wire of auto-transformer is through crystalline substance
To zero curve, the output end that the right end lead-out wire of above-mentioned auto-transformer is constituted is connected to user load for brake tube and capacitance connection, on
It states and is parallel with magnetic latching relay switch on thyristor.
2. a kind of distribution contactless voltage-regulating device as described in claim 1, it is characterised in that: the distribution contactless voltage-regulating device
It also include control circuit, the control circuit includes the mutual inductor of concatenation on the transmission line, and the mutual inductor is connected to
The signal output end of processor, the processor is connected to the control electrode of thyristor.
3. a kind of distribution contactless voltage-regulating device as described in claim 1, it is characterised in that: the A/B/C three-phase on transmission line of electricity
Input terminal one is connected to through three electronic switches respectively.
4. a kind of distribution contactless voltage-regulating device as claimed in claim 3, it is characterised in that: the electronic switch includes brilliant lock
Pipe and magnetic latching relay switch, and magnetic latching relay switch is parallel with one another with thyristor；And the control electrode connection of thyristor
To the control output end of governor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225928.6U CN209298889U (en) | 2018-12-27 | 2018-12-27 | Distribution contactless voltage-regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225928.6U CN209298889U (en) | 2018-12-27 | 2018-12-27 | Distribution contactless voltage-regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209298889U true CN209298889U (en) | 2019-08-23 |
Family
ID=67649147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822225928.6U Active CN209298889U (en) | 2018-12-27 | 2018-12-27 | Distribution contactless voltage-regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209298889U (en) |
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2018
- 2018-12-27 CN CN201822225928.6U patent/CN209298889U/en active Active
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