CN2529363Y

CN2529363Y - Dry-type magnetic control regulating transformer

Info

Publication number: CN2529363Y
Application number: CN 01279832
Authority: CN
Inventors: 潘永歧
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-31
Filing date: 2001-12-31
Publication date: 2003-01-01
Anticipated expiration: 2011-12-31

Abstract

The utility model relates to a dry-type magnetic control regulating transformer which is characterized in that iron core cylinders 1 and 2 which are enlaced with control coils are connected with a DC control power supply DC, an iron core cylinder 3 enlaced with a primary coil is connected with an AC electric supply AC, and an iron core cylinder 4 is used for connecting load for a secondary coil; when the direct current supply controlling the control coil is zero, the great mass of the magnetic flux gets through the iron core cylinders 1 and 2, forming a circuit, because the iron core cylinder 4 has a small magnetic flux, thereby the output voltage of the secondary coil is low, when the control source is increased, the iron core cylinders 1 and 2 are saturated, then the magnetic flux get through the iron core cylinder 4, forming a circuit, the secondary output voltage is increased along the increase of the coil current, thereby realizing the aim of voltage regulation and transformation. So the utility model has the advantages of simple structure, no environmental pollution, wide range of regulation and high efficiency; moreover, reducing volume and cost; in addition, the dry-type magnetic control regulating transformer has the functions of inflaming retarding, anti-detonation and moisture protection, solving the problem that the voltage regulations of the thyristor and the thyristor have excessive loss.

Description

Dry magnet controlled voltage regulating transformer

Technical field:

The utility model provides a kind of dry magnet controlled voltage regulating transformer, is the improvement to the pressure regulation potential device, belongs to the power transformer technical field.

Background technology:

At present, electric power pressure regulation potential device commonly used has two kinds of forms, and a kind of is to adopt separately independently pressure regulation and transformation two complete equipments, finishes pressure regulation transformation function by interconnecting, and deficiency is bulky, cost cost height; Another kind is with pressure regulation potential device integration-in-one structure, solves heat radiation and electrical apparatus insulation problem by immersion oil, and its shortcoming is not have fire retardant performance, and the scope of application is limited to very much, does not meet environmental requirement.

Summary of the invention:

Task of the present utility model provides a kind of dry magnet controlled voltage regulating transformer, has overcome that existing potential device volume is big, cost is high, the shortcoming of fire-retardant fireproof difference.

For finishing above-mentioned task, the employing technical solution is as follows: adopt the four-column type core structure, be wound with control coil and be connected with DC control supply DC on iron core column 1,2, be wound with primary winding on the iron core column 3 and be connected with AC power AC, iron core column 4 connects load for the transformer secondary coil; The sectional area of

iron core column

3,4 is about the twice of iron core column 1,2.When primary winding is connected with alternating current, iron core produces exchange flux, when the DC power supply of control coil was zero, magnetic flux is most of to form the loop by iron core column 1,2, because the magnetic flux of iron core column 4 is very little, then the secondary coil output voltage is very low, when control power supply DC increases, iron core column 1,2 magnetic saturation, magnetic flux is most of to constitute the loop by iron core column 4, the secondary output voltage increases with the increase of coil current, has realized pressure regulation transformation purpose.

The used coil of the utility model all adopts organdy and epoxy resin compound inslation curing materials to make, and has abandoned immersion oil insulating radiation protected mode, is the dry insulation protection.

Good effect of the present utility model is: adopt four post integrated morphology iron cores, simple in structure, volume-diminished, reduce cost, dry insulation has fire-retardant, explosion-proof, humidity resistance need not to change oil, repairing, maintenance, free from environmental pollution, range of regulation is wide, and the efficient height has solved thyristor, the excessive problem of silicon-controlled voltage regulation loss.

Description of drawings:

Fig. 1 is the utility model structure principle chart.

1～iron core column 1,2～iron core column 2,3～

iron core column

3,4～iron core column, 4,5～four column iron core bodies, N1～primary winding, N2～secondary coil, N3～control coil, DC～DC control supply, AC～AC power, R～load.

Embodiment:

According to Fig. 1, four-column type iron core body 1 is made of

iron core column

1,2,3,4, the sectional area of

iron core column

3,4 is the twice of iron core column 1,2, control coil N3 is wrapped in that its tap meets DC control supply DC on the iron core column 1,2, primary winding N1 is wrapped on the iron core column 3 and is connected with AC power AC, and secondary coil N2 is wrapped in output termination load R on the iron core column 4.The insulation of all coils all adopts organdy and epoxy resin compound inslation curing materials sealing infuse to form.

Claims

1, a kind of dry magnet controlled voltage regulating transformer, it is characterized in that: four-column type iron core body (1) is made of iron core column (1), (2), (3), (4), control coil (N3) is wrapped in iron core column (1), (2) are gone up its tap and met DC control supply DC, the iron core column (3) that is wrapped in primary winding (N1) goes up and is connected with AC power AC, and secondary coil (N2) is wrapped in iron core column (4) and goes up output termination load R.

2, transformer according to claim 1 is characterized in that: the sectional area of iron core column (3), (4) is the twice of iron core column (1), (2).