CN202737464U

CN202737464U - Rectification transformer energy saving and electric energy quality control device

Info

Publication number: CN202737464U
Application number: CN2012203800838U
Authority: CN
Inventors: 赖超; 徐婷; 陈铿
Original assignee: CINF Engineering Corp Ltd
Current assignee: Huachu Intelligent Technology Hunan Co ltd
Priority date: 2012-08-02
Filing date: 2012-08-02
Publication date: 2013-02-13
Anticipated expiration: 2022-08-02

Abstract

The present utility model discloses a rectification transformer energy saving and electric energy quality control device. The device comprises a voltage-regulating transformer, more than one rectification transformer, more than one rectifier, more than one switch equipment and more than one filtering and compensation device; the primary side of the voltage-regulating transformer is connected in an electrical network, a secondary side of each voltage-regulating transformer is connected with the rectification transformers; the rectification transformers are connected with the rectifiers, the rectifiers are connected with a load, and a third winding of each rectification transformer is connected with the filtering and compensation device through the switch equipment. In the device, the filtering and compensation device is arranged on a position which has a nearest distance with the load, parameters of the filtering and compensation device can be reasonably set to effectively filter harmonic wave generated by electrolytic load, electric energy quality can be improved, and harmonic wave losses of the rectification transformers can be obviously reduced.

Description

A kind of rectifier transformer energy-conservation with quality of power supply control device

Technical field

The utility model relate to electrolysis system energy-conservation with quality of power supply control field, particularly a kind of rectifier transformer energy-conservation with quality of power supply control device.

Background technology

Rectifier transformer valve side is low-voltage, high-current equipment, its operate power factor is lower, the harmonic content of injecting electrical network is larger, the rectifying installation power factor is low, harmonic effects is large, and the compensation filter scheme of generally taking at present has two kinds: in voltage regulating transformer net side compensation filter device (see figure 1) is set; Between voltage regulating transformer and rectifier transformer, establish the compensation filter winding, connect compensation filter device (see figure 2); In voltage regulating transformer net side the compensation filter device is set, exists voltage on line side high, corresponding switchgear, compensation filter device electric pressure improve, and once investment is quite high, and the loss of rectifier transformer does not have the defectives such as reduction, operation and maintenance cost height; Establish the compensation filter winding between voltage regulating transformer and rectifier transformer, connect the compensation filter device, the voltage of compensation filter device can drop to economic voltage, but the loss of rectifier transformer does not reduce.

Summary of the invention

Technical problem to be solved in the utility model is, and is not enough for prior art, provide a kind of rectifier transformer energy-conservation with quality of power supply control device, conveniently compensate economically filtering, improve the quality of power supply, reduce simultaneously the rectifier transformer loss.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of rectifier transformer energy-conservation with quality of power supply control device, comprise voltage regulating transformer, an above rectifier transformer, an above rectifier, an above switchgear and an above filtering compensation device, the voltage regulating transformer primary side is received into electrical network, the voltage regulating transformer secondary side is connected with rectifier transformer, rectifier transformer is connected with rectifier, rectifier is received load, and rectifier transformer accesses filtering compensation device by switchgear.

As preferred version, described rectifier transformer, rectifier, switchgear and filtering compensation device quantity are two.

Compared with prior art, the utility model is arranged on filtering compensation device from the nearest position of load, by the parameter of compensation filter device reasonably is set, can effectively filter the harmonic wave that the electrolysis load produces, improve the quality of power supply, can obviously reduce again the harmonic loss of rectifier transformer simultaneously.

Description of drawings

Fig. 1 is that filtering compensation device is arranged on net side structure schematic diagram;

Fig. 2 is that filtering compensation device is arranged on voltage regulating transformer secondary lateral structure schematic diagram;

Fig. 3 is the utility model one example structure schematic diagram.

Embodiment

As shown in Figure 3, the utility model one embodiment comprises voltage regulating transformer 1, two rectifier transformers 2, two rectifiers 3, two switchgears 4 and two filtering compensation devices 5, two rectifier transformers 2 share a voltage regulating transformer 1, voltage regulating transformer 1 primary side access electrical network, voltage regulating transformer 1 secondary side is connected with two rectifier transformers 2, each rectifier transformer 2 is connected with a rectifier 3, two rectifiers 3 are all received load, and each rectifier transformer 2 is connected with a filtering compensation device 5 by switchgear 4.

Described two rectifier transformer parallel connections.

Described rectifier transformer is 6 pulse wave rectifier transformers; Switchgear is KYN28-12 type switch cubicle.

The present embodiment is attainable near the compensation filter embodiment of harmonic source, this device will make the loss of harmonic current reduction, rectifier transformer in the rectifier transformer iron core further reduce, whole energy efficient is lower by about 1% than conventional scheme, the harmonic content that makes transformer net side inject electrical network satisfies the requirement of national standard, while is energy savings to greatest extent, meet the energy policy of country, be worth wideling popularize at electrolysis industry.

Claims

A rectifier transformer energy-conservation with quality of power supply control device, comprise voltage regulating transformer, an above rectifier transformer, an above rectifier, an above switchgear and an above filtering compensation device, voltage regulating transformer primary side access electrical network, the voltage regulating transformer secondary side is connected with rectifier transformer, rectifier transformer is connected with rectifier, rectifier is received load, it is characterized in that, rectifier transformer accesses filtering compensation device by switchgear.
Rectifier transformer according to claim 1 energy-conservation with quality of power supply control device, it is characterized in that, described rectifier transformer, rectifier, switchgear and filtering compensation device quantity are two.
Rectifier transformer according to claim 2 energy-conservation with quality of power supply control device, it is characterized in that two rectifier transformer parallel connections.