CN102064558B

CN102064558B - Three-phase electromagnetic balanced electricity-saving appliance

Info

Publication number: CN102064558B
Application number: CN201010564233A
Authority: CN
Inventors: 周杰
Original assignee: Zhangjiagang Shazhou Special Transformer Manufacturing Co Ltd
Current assignee: ZHANGJIAGANG JACK ENERGY SAVING TECHNOLOGY CO., LTD.
Priority date: 2010-11-30
Filing date: 2010-11-30
Publication date: 2012-09-26
Anticipated expiration: 2030-11-30
Also published as: CN102064558A

Abstract

The invention discloses a three-phase electromagnetic balanced electricity-saving appliance, which can well inhibit harmonic waves and keep a three-phase voltage balanced. The electricity-saving appliance comprises a silicon-steel sheet framework, an inner coil assembly and an outer coil assembly, wherein the inner coil assembly comprises a coil a, a coil b and a coil c; the outer coil assembly comprises a coil A, a coil B and a coil C; the framework comprises three wrapping posts and a pair of side frame connected to both ends of the three wrapping posts; and the inner coil assembly and the outer coil assembly are wound on the three wrapping posts by adopting a cross complementing winding method and a forward and reverse mixed serial-connecting and coupling winding method. The electricity-saving appliance well controls the phase deviation among three phases, decreases zero-sequence current and negative-sequence current and increases power factors, reduces loss in electromagnetic transduction, removes surge, transition, harmonic waves, peaks and burrs, smoothes sinusoidal wave form, thereby reducing the reactive loss and saving electric energy.

Description

Three-phase electromagnetic balance electricity-saving appliance

Technical field

The present invention relates to the electricity-saving appliance that inserts the three-phase low voltage electric network.

Background technology

At present, power shortages are just becoming one of key factor of restriction China economic development, and serious electric network pollution and three-phase voltage unbalanced power supply situation have been aggravated the loss of electric energy and the user is injured.The main cause that the problems referred to above produce has:

With the harmonic wave is main electric network pollution; High order harmonic component part in the power supply is to be produced by civil power; Another part is that low-voltage electrical and electronic equipment cause, and such as adopting the frequency converter power-saving technique, only on single equipment, effectively economizes on electricity; But can produce a large amount of harmonic waves in its work, pollute electrical network.As everyone knows, harmonic wave not only causes waste of electric energy, and, can cause also that transformer is overheated because of the increasing of eddy current and loss, motor overheating and torque descend, also can cause in the secondary capacitor cabinet results such as capacitor is overheated, neutral current increase.

Imbalance of three-phase voltage; In low-voltage circuit,, make three-phase load uneven owing to there is the influence of single-phase and high order harmonic component; Cause a series of harm: influence the safety and economic operation of transformer, motor, cause that supply and distribution network phase line and zero line electric energy loss strengthen; Influence the damage of computer operate as normal, the illuminating lamp lost of life (overtension) or illumination (brownout) on the low side and television set etc.; To the interference of communication system, influence normal communication quality.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of and can suppress harmonic wave preferably, and can make three-phase voltage keep the three-phase electromagnetic balance electricity-saving appliance of balance.

For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: three-phase electromagnetic balance electricity-saving appliance comprises: silicon steel sheet skeleton and inside and outside coil groups, interior loop group comprise a, b, c coil; The exterior loop group comprises A, B, C coil; Described skeleton comprises three wrapping posts and a pair of frame that is connected these three wrapping post two ends, and first section a1 of a, b, c coil, b1, c1 are respectively on three wrapping posts, and second section a2 of a, b, c coil, b2, c2 are respectively around the outside of b1, c1 and a1; The 3rd section a3 of a, b, c coil, b3, c3 are respectively around the outside of c2, a2 and b2; In a, b, the c coil, the counterclockwise coiling of a2, b2 and c2, a1, b1, c1 and a3, b3, the clockwise coiling of c3; The 4th section A4 of second section C2 of first section A1 of A coil, C coil and the 3rd section C3, A coil is according to the order of sequence around the outside of a3; The 4th section B4 of second section A2 of first section B1 of B coil, A coil and the 3rd section A3, B coil is according to the order of sequence around the outside of b3; The 4th section C4 of second section B2 of first section C1 of C coil, B coil and the 3rd section B3, C coil is according to the order of sequence around the outside of c3; In A, B, the C coil; The counterclockwise coiling of A2 and A3, B2 and B3, C2 and C3, the clockwise coiling of A1 and A4, B1 and B4, C1 and C4; The line end of A1, B1 and C1 links to each other with three-phase input power supply respectively, and the line end of A4, B4 and C4 is exported, also linked to each other a3, b3 and c3 connecting to neutral line N respectively with a1, b1 and c1 as three phase mains.

The invention has the beneficial effects as follows: the present invention adopts the method for winding of cross complementary, has reached electromagnetic balance, adopts the winding mode of forward and reverse mixing series coupled, has controlled the phase deviation between the three-phase well.According to Ampere's law, the flux that produces between them can be cancelled out each other, and the imbalance with the adjustment current/voltage has reduced zero sequence, negative-sequence current, has improved power factor; And, also reduced the loss in the electromagnetic conversion, filtering surge, transition, harmonic wave, spike and burr, level and smooth sinusoidal waveform, thus reduced reactive loss, saved electric energy.

Description of drawings

Fig. 1 is an electric theory structure sketch map of the present invention.

Fig. 2 is the winding structure sketch map of exterior loop among Fig. 1.

Embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present invention in detail.

Like Fig. 1, shown in Figure 2, three-phase electromagnetic balance electricity-saving appliance of the present invention comprises: silicon steel sheet skeleton and inside and outside coil groups; The interior loop group comprises a, b, c coil; The exterior loop group comprises A, B, C coil, and described skeleton comprises three wrapping posts 1,2 and 3 and a pair of frame 4 that is connected these three wrapping posts 1,2 and 3 two ends, and first section a1 of a, b, c coil, b1, c1 are respectively on three wrapping posts 1,2 and 3; That is: a1 on wrapping post 1, b1 on wrapping post 2, c1 is on wrapping post 3; Second section a2 of a, b, c coil, b2, c2 be respectively around the outside of b1, c1 and a1, and the 3rd section a3 of a, b, c coil, b3, c3 are respectively around the outside of c2, a2 and b2, in a, b, the c coil; The counterclockwise coiling of a2, b2 and c2; A1, b1, c1 and a3, b3, the clockwise coiling of c3, the circle line of a1, b1, c1, a2, b2, c2 equate that the circle line of a3, b3, c3 equates and is the twice of a1 circle line; The 4th section A4 of second section C2 of first section A1 of A coil, C coil and the 3rd section C3, A coil is according to the order of sequence around the outside of a3; The 4th section B4 of second section A2 of first section B1 of B coil, A coil and the 3rd section A3, B coil is according to the order of sequence around the outside of b3; The 4th section C4 of second section B2 of first section C1 of C coil, B coil and the 3rd section B3, C coil is according to the order of sequence around the outside of c3; In A, B, the C coil; The counterclockwise coiling of A2 and A3, B2 and B3, C2 and C3, the clockwise coiling of A1 and A4, B1 and B4, C1 and C4, the number of turn of A1, B1, C1, A2, B2, C2, A3, B3, C3, A4, B4, C4 all equates; The line end of A1, B1 and C1 is connected with U1, V1, the W1 end of three-phase input power supply respectively, and the line end of A4, B4 and C4 is exported as three phase mains, and its output is that U2, V2 and W2 link to each other with a1, b1 and c1 respectively, a3, b3 and c3 connecting to neutral line N.

Claims

1. three-phase electromagnetic balance electricity-saving appliance; Comprise: the silicon steel sheet skeleton is characterized in that: described electricity-saving appliance also includes inside and outside coil groups, and the interior loop group comprises a, b, c coil; The exterior loop group comprises A, B, C coil; Described skeleton comprises three wrapping posts and a pair of frame that is connected these three wrapping post two ends, and first section a1 of a, b, c coil, b1, c1 are respectively on three wrapping posts, and second section a2 of a, b, c coil, b2, c2 are respectively around the outside of b1, c1 and a1; The 3rd section a3 of a, b, c coil, b3, c3 are respectively around the outside of c2, a2 and b2; In a, b, the c coil, the counterclockwise coiling of a2, b2 and c2, remaining clockwise coiling; The 4th section A4 of second section C2 of first section A1 of A coil, C coil and the 3rd section C3, A coil is according to the order of sequence around the outside of a3; The 4th section B4 of second section A2 of first section B1 of B coil, A coil and the 3rd section A3, B coil is according to the order of sequence around the outside of b3; The 4th section C4 of second section B2 of first section C1 of C coil, B coil and the 3rd section B3, C coil is according to the order of sequence around the outside of c3; In A, B, the C coil, the counterclockwise coiling of A2 and A3, B2 and B3, C2 and C3, remaining clockwise coiling; The line end of A1, B1 and C1 links to each other with three-phase input power supply respectively, and the line end of A4, B4 and C4 is exported, also linked to each other a3, b3 and c3 connecting to neutral line N respectively with a1, b1 and c1 as three phase mains.