CN201726301U

CN201726301U - Combined high-voltage explosion-proof frequency converter

Info

Publication number: CN201726301U
Application number: CN201020254124XU
Authority: CN
Inventors: 付国军; 张志峰; 高波; 牛乃平; 董冠军; 宋文伟
Original assignee: SHANXI KEDA AUTOMATIC CONTROL ENGINEERING TECHNOLOGY Co Ltd
Current assignee: Shanxi Keda Automation Control Co., Ltd.
Priority date: 2010-07-07
Filing date: 2010-07-07
Publication date: 2011-01-26
Anticipated expiration: 2020-07-07

Abstract

The utility model discloses a combined high-voltage explosion-proof frequency converter which pertains to the technical field of power electronic equipment. The following technical proposal is adopted in the utility model: the combined high-voltage explosion-proof frequency converter comprises an isolation transformer, a power module unit, a control system and an output wiring part, all of which are connected with each other by cables or optical fiber. The isolation transformer is arranged in a first explosion-proof tank; the control system is arranged in a second explosion-proof tank; the output wiring part is arranged in a third explosion-proof tank; the power module unit is divided into a first power module unit group, a second power module unit group and a third power module unit group; and the three unit groups are respectively arranged in a fourth explosion-proof tank, a fifth explosion-proof tank and a sixth explosion-proof tank which are separated with each other. The combined high-voltage explosion-proof frequency converter can be operated in underground coal mines and other sites needing explosion proof.

Description

Combined high-voltage flame proof frequency converter

Technical field

The utility model combined high-voltage flame proof frequency converter belongs to the power electronic equipment technical field.

Background technology

Frequency converter is to utilize the effect that turns on and off of semiconductor power device industrial-frequency alternating current to be transformed to the converting means of the AC energy of frequency adjustable; This device is transformed to direct current to industrial-frequency alternating current earlier, the alternating current that direct current is transformed to frequency adjustable drives load again, develop rapidly along with microelectronics and power electronic technology, product as the 21 century power electronic technology, high voltage converter has obtained using widely at the numerous areas of national economy, and is bringing into play more and more important effect.

Present power unit cascade type multi-level high-voltage frequency transformer, mainly form by the power model unit and the control system of interconnective many secondary winding phase shifting transformer, a plurality of mutual series connection, but this high voltage converter does not have explosion prevention function, and whole frequency converter is installed together, can not take transportation apart, very inconvenient in the process of carrying, so this type of high voltage converter can only be in common applications, and can not be directly under the inferior environment that needs flame proof of coal mine, use.

The utility model content

The utility model overcomes the deficiency that prior art exists, and problem to be solved provides a kind of combined high-voltage flame proof frequency converter with flame proof function.

In order to address the above problem, the scheme that the utility model adopts is: combined high-voltage flame proof frequency converter, comprise isolating transformer, the power model unit, control system and output connection part, isolating transformer, the power model unit, connect by cable or optical fiber between control system and the output connection part, isolating transformer is arranged in first Flameproof box, control system is arranged in second Flameproof box, output connection partly is arranged in the 3rd Flameproof box, the power model unit is separated into the first power model unit group according to the power cell of same phase, the second power model unit group and the 3rd power model unit group, the first power model unit group, the second power model unit group and the 3rd power model unit group are arranged on the 4th separate Flameproof box respectively, in the 5th Flameproof box and the 6th Flameproof box.

The package assembly of described combined high-voltage flame proof frequency converter is: be disposed with the 4th Flameproof box, the 5th Flameproof box and the 6th Flameproof box, the 3rd Flameproof box of first Flameproof box, second Flameproof box, laterally stack setting from left to right, the front surface of described first Flameproof box, second Flameproof box, the 4th Flameproof box, the 5th Flameproof box, the 6th Flameproof box and the 3rd Flameproof box is on the same transverse horizontal face.

The utility model combined high-voltage flame proof frequency converter compared with prior art has following beneficial effect:

In the split type flameproof cabinet that is arranged on separately of isolating transformer in the utility model, power model unit, control system and output connection part, make this combined high-voltage flame proof frequency converter have the function of flame proof, isolating transformer, power model unit, control system and output connection partly are connected by cable or optical fiber, have realized that whole flame proof is connected with composite type; The power model unit is separated into the first power model unit group, the second power model unit group and the 3rd power model unit group according to the power cell of same phase, the first power model unit group, the second power model unit group and the 3rd power model unit group are arranged on respectively in the 4th separate Flameproof box, the 5th Flameproof box and the 6th Flameproof box, so further the power model unit is divided into three groups, and be arranged in the Flameproof box separately, reduced the weight and volume of single Flameproof box, make things convenient for combined traffic and installation, taken into account the flame proof function simultaneously.Therefore the utility model can be in the inferior occasion work that needs flame proof of coal mine.

Description of drawings

Below in conjunction with accompanying drawing the utility model combined high-voltage flame proof frequency converter is further described:

Fig. 1 is the front view of the utility model combined high-voltage flame proof frequency converter;

Fig. 2 is the vertical view of Fig. 1.

Wherein, 1 is that isolating transformer, 2 is that power model unit, 3 is that control system, 4 is that output connection part, 5 is that first Flameproof box, 6 is that second Flameproof box, 7 is that the 3rd Flameproof box, 8 is that the 4th Flameproof box, 9 is that the 5th Flameproof box, 10 is that the 6th Flameproof box, 11 is that the first power model unit group, 12 is that the second power model unit group, 13 is the 3rd power model unit group.

Embodiment

Combined high-voltage flame proof frequency converter as depicted in figs. 1 and 2, its operation principle is identical with existing high voltage converter, combined high-voltage flame proof frequency converter, comprise according to the interconnective isolating transformer 1 of routine work principle, power model unit 2, control system 3 and output connection part 4, isolating transformer 1, power model unit 2, connect by cable or optical fiber between control system 3 and the output connection part 4 with flame proof function, the input of isolating transformer 1 links to each other with far-end high pressure inlet wire by the high-voltage explosion-proof cable, the output of output connection part 4 links to each other with power consumption equipment by the flame proof cable, isolating transformer 1 is arranged in first Flameproof box 5, control system 3 is arranged in second Flameproof box 6, output connection part 4 is arranged in the 3rd Flameproof box 7, power model unit 2 is according to the power cell of same phase, the general U phase that adopts, the V phase, W is separated into the first power model unit group 11 with power model unit 2, the second power model unit group 12 and the 3rd power model unit group 13, the first power model unit groups 11, the second power model unit group 12 and the 3rd power model unit group 13 are separately positioned on the 4th separate Flameproof box 8, in the 5th Flameproof box 9 and the 6th Flameproof box 10.The package assembly of combined high-voltage flame proof frequency converter is: be disposed with the 4th Flameproof box 8, the 5th Flameproof box 9 and the 6th Flameproof box 10, the 3rd Flameproof box 7 of first Flameproof box 5, second Flameproof box 6, laterally stack setting from left to right, the front surface of described first Flameproof box 5, second Flameproof box 6, the 4th Flameproof box 8, the 5th Flameproof box 9, the 6th Flameproof box 10 and the 3rd Flameproof box 7 is on the same transverse horizontal face.Flame proof cable between isolating transformer 1 and the power model unit 2 can be walked around the back of second Flameproof box 6 and arrange.Each big parts of the present utility model all independently are arranged in the corresponding Flameproof box, promptly can put according to real work position flexible combination, also can be in the inferior occasion work that needs flame proof of coal mine.

Claims

1. combined high-voltage flame proof frequency converter, comprise isolating transformer (1), power model unit (2), control system (3) and output connection part (4), it is characterized in that: isolating transformer (1), power model unit (2), connect by cable or optical fiber between control system (3) and the output connection part (4), isolating transformer (1) is arranged in first Flameproof box (5), control system (3) is arranged in second Flameproof box (6), output connection part (4) is arranged in the 3rd Flameproof box (7), power model unit (2) is separated into the first power model unit group (11) according to the power cell of same phase, the second power model unit group (12) and the 3rd power model unit group (13), the first power model unit group (11), the second power model unit group (12) and the 3rd power model unit group (13) are separately positioned on separate the 4th Flameproof box (8), in the 5th Flameproof box (9) and the 6th Flameproof box (10).

2. combined high-voltage flame proof frequency converter according to claim 1, it is characterized in that: the package assembly of described combined high-voltage flame proof frequency converter is: be disposed with first Flameproof box (5) from left to right, second Flameproof box (6), the 4th Flameproof box (8) that horizontal stack is provided with, the 5th Flameproof box (9) and the 6th Flameproof box (10), the 3rd Flameproof box (7), described first Flameproof box (5), second Flameproof box (6), the 4th Flameproof box (8), the 5th Flameproof box (9), the front surface of the 6th Flameproof box (10) and the 3rd Flameproof box (7) is on the same transverse horizontal face.