CN2261665Y

CN2261665Y - Plastic sealing voltage inducer

Info

Publication number: CN2261665Y
Application number: CN 96207020
Authority: CN
Inventors: 孔繁友; 彭凤品; 孔炎
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-21
Filing date: 1996-03-21
Publication date: 1997-09-03
Anticipated expiration: 2006-03-21

Abstract

The utility model relates to a plastic voltage mutual inducer used for electric power. The structure of the utility model is characterized in that an iron core is of a joint with 45 DEG; a primary winding with a winding lead wire is wound on a plastic skeleton; a secondary winding is wound on the plastic skeleton of the secondary winding which is sheathed on the central stem of the iron core; an electrical conductor of the primary winding is sealed by a plastic sealed cover; an insulating layer is arranged between the primary and the secondary windings. The utility model which has the advantages of unique structure, low cost, small size, light weight, high precision, simple production process and safety brings the management of electric power trade new vital force and activity.

Description

The plastic packaging voltage transformer

The utility model relates to a kind of electric power and already goes up the plastic packaging voltage transformer of using.

At present the voltage transformer already used of electric power divides oil immersion and poured with epoxy resin formula, and its iron core is 90 degree seams, and oil immersion or cast structure insulation effect are poor, volume is big, cost is high, easy oil impregnate or discharge, inconvenience is keeped in repair, is easily blasted, and low precision already causes a lot of unfavorable factors for electric power.

The purpose of this utility model is at above-mentioned situation and actual needs, provides a kind of novel electric power already to go up the plastic packaging voltage transformer of using.

The purpose of this utility model is achieved like this, adopt the cold-reduced silicon sheet iron core of high magnetic flux density, high permeability, its seam is 45 degree, high voltage feeds another time winding by a winding lead-out wire, another time winding is on the plastic skeleton of high pressure resistant, high temperature, secondary winding is enclosed within by the secondary winding skeleton on the stem stem of iron core, by the electric conductor of a winding of plastic seal cover sealing.

The utility model structure uniqueness, cost is low, and volume is little, and is in light weight, the precision height, production technology is simple, and is safe and reliable, is easy to apply, and is the innovation greatly to existing voltage transformer, for electric power management and use already brings new vigor and vitality.

Below in conjunction with accompanying drawing structure of the present utility model is elaborated.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 be among Fig. 1 A-A to profile.

By illustrated in figures 1 and 2, its structure of the utility model is, iron core 1 is 45 degree seams, one time winding lead-out wire 9 feeds a winding 4, a winding 4 is on skeleton 5, on the secondary winding skeleton (8) of secondary winding 7 on the center stem stem that is placed in iron core 1, plastic seal cover 2 seals up the electric conductor of a winding 4, lead-out wire 10 is arranged on the secondary winding 7, being surrounded by on the winding between plastic adhesive tape 3, first and second windings has insulating barrier 6, sometimes, also can settle break-in lead-out wire 11 one time, shown in outside dotted line among Fig. 2 according to winding of customer requirements.The winding of first and second winding and the number of turn are with existing instrument transformer.

Said iron core 1 adopts high magnetic flux density, the close cold-reduced silicon sheet of high magnetic conduction to make, seam 45 degree, its contact area is bigger by about 40% than conventional voltage transformer iron core 90 degree seams, can reduce leakage field and magnetic resistance, improve permeability, economical with materials 15%, and improved precision, error in dipping when guaranteeing the upper and lower limit load; A winding 4 is on high voltage withstanding, resistant to elevated temperatures plastic skeleton 5, improved winding insulation level to iron core 1 and secondary winding 7, the electric conductor of a winding 4 of plastic seal cover 2 sealings is for preventing that high voltage is to iron core 1 discharge, high voltage feeds a winding 4, iron core 1 produces magnetic field, the low-voltage that secondary winding 7 induces is suitable, measure is sent to measuring instrument by secondary winding lead-out wire 10, to measure its electric energy and voltage.The utility model precision is 0.2 grade, capacity 20VA.

Claims

1, a kind of plastic packaging voltage transformer that constitutes by iron core, skeleton and winding, it is characterized in that iron core 1 is 45 degree seams, a winding lead-out wire (9) feeds a winding (4), a winding (4) is on skeleton (5), on the secondary winding skeleton (8) of secondary winding (7) on the center stem stem that is placed in iron core (1), plastic seal cover (2) seals up the electric conductor of a winding (4), lead-out wire (10) is arranged on the secondary winding (7), be surrounded by plastic adhesive tape (3) on the winding, insulating barrier (6) is arranged between the secondary winding.

2, plastic packaging voltage transformer according to claim 1 is characterized in that a said winding can settle a break-in lead-out wire (11).

3, plastic packaging voltage transformer according to claim 1 is characterized in that said skeleton (5) is high pressure resistant, resistant to elevated temperatures plastic skeleton.