CN203119839U - High-voltage frequency converter system provided with safe bypass circuit - Google Patents

High-voltage frequency converter system provided with safe bypass circuit Download PDF

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Publication number
CN203119839U
CN203119839U CN2012207137590U CN201220713759U CN203119839U CN 203119839 U CN203119839 U CN 203119839U CN 2012207137590 U CN2012207137590 U CN 2012207137590U CN 201220713759 U CN201220713759 U CN 201220713759U CN 203119839 U CN203119839 U CN 203119839U
Authority
CN
China
Prior art keywords
frequency converter
voltage
bypass circuit
vacuum contactor
voltage frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012207137590U
Other languages
Chinese (zh)
Inventor
曾庆友
陈家芬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING YOUFA NUMERICAL CONTROL EQUIPMENT Co Ltd
Original Assignee
CHONGQING YOUFA NUMERICAL CONTROL EQUIPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING YOUFA NUMERICAL CONTROL EQUIPMENT Co Ltd filed Critical CHONGQING YOUFA NUMERICAL CONTROL EQUIPMENT Co Ltd
Priority to CN2012207137590U priority Critical patent/CN203119839U/en
Application granted granted Critical
Publication of CN203119839U publication Critical patent/CN203119839U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a high-voltage frequency converter system provided with a safe bypass circuit. The high-voltage frequency converter system provided with the safe bypass circuit includes a display panel, and a high-voltage bus, a circuit breaker, a vacuum contactor I, a voltage transformer, a frequency converter, a vacuum contactor II and a servo permanent-magnet synchronous motor sequentially connected together. The high-voltage frequency converter system provided with the safe bypass circuit also includes a vacuum contactor III used for connecting with the circuit breaker directly and the servo permanent-magnet synchronous motor directly. The servo permanent-magnet synchronous motor is equipped with a rotary encoder. The display panel is connected with the rotary encoder and the voltage transformer respectively. By using the high-voltage frequency converter system provided with the safe bypass circuit, a shortcoming that power cut is required for maintenance in the prior art. And the high-voltage frequency converter system provided with the safe bypass circuit is safe in maintenance and does not influence motor operation.

Description

A kind of high voltage converter system that has the emergency bypass circuit
Technical field
The utility model relates to a kind of high voltage converter, specifically a kind of high voltage converter system that has the emergency bypass circuit.
Background technology
Frequency converter VFD (Variable frequency Drive) uses converter technique and microelectric technique, and the frequency by changing the machine operation power supply and the mode of amplitude are controlled the Electric Drive element of alternating current motor.Frequency converter is integrated high-voltage high-power transistor technology and electron controls technology are used widely.The effect of frequency converter is frequency and the amplitude that changes the alternating current machine power supply, thereby changes the cycle of its moving magnetic field, reaches the purpose of level and smooth control motor speed.The appearance of frequency converter, make complicated speed regulating control oversimplify, with frequency converter+mouse cage AC formula induction motor combination replacement the most of work that originally can only finish with direct current machine, dwindled volume, reduced maintenance rate, made drive technology develop into the new stage.Present frequency converter must cut off the power supply when maintenance, has so just influenced the normal operation of motor, also occurs dangerous simultaneously when maintenance easily.
The utility model content
For overcoming the deficiencies in the prior art, technical problem to be solved in the utility model provides a kind of maintenance safety and does not influence the frequency convertor system of motor rotation.
For solving the problems of the technologies described above, a kind of high voltage converter system that has the emergency bypass circuit that the utility model adopts, comprise display floater and the high voltage bus, circuit breaker, vacuum contactor one, voltage transformer, frequency converter, vacuum contactor two, the servo permagnetic synchronous motor that connect successively, also comprise for the vacuum contactor three that directly connects circuit breaker and servo permagnetic synchronous motor, on the described servo permagnetic synchronous motor rotary encoder is installed, display floater is connected with described rotary encoder, voltage transformer respectively.
Beneficial effect: the utility model is when maintenance, as long as closed vacuum contactor three disconnects vacuum contactor one and gets final product, can ensure safety and can work on, not stop the running of motor like this.Can carry out the switching of converting operation and power frequency operation in use.
The staff can also pass through display floater, and the speed conditions of directly observing inverter supply voltage condition and controlled motor is convenient to associative operation personnel failure judgement situation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of high voltage converter system that has the emergency bypass circuit of the utility model, comprise display floater and the high voltage bus, circuit breaker Q F, vacuum contactor one QS1, voltage transformer TV, frequency converter UF, vacuum contactor two QS2, the servo permagnetic synchronous motor M that connect successively, also comprise for vacuum contactor three QS3 that directly connect circuit breaker Q F and servo permagnetic synchronous motor M, on the described servo permagnetic synchronous motor M rotary encoder is installed, display floater is connected with described rotary encoder, voltage transformer TV respectively.
In conjunction with common practise, those skilled in the art as can be known, display floater includes display module, as display screen and continuous control chip thereof, above-mentioned rotary encoder, voltage transformer TV are connected with the signal input part of this control chip.
Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection range of the present utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims (1)

1. high voltage converter system that has the emergency bypass circuit, it is characterized in that, comprise display floater and the high voltage bus, circuit breaker, vacuum contactor one, voltage transformer, frequency converter, vacuum contactor two, the servo permagnetic synchronous motor that connect successively, also comprise for the vacuum contactor three that directly connects circuit breaker and servo permagnetic synchronous motor, on the described servo permagnetic synchronous motor rotary encoder is installed, display floater is connected with described rotary encoder, voltage transformer respectively.
CN2012207137590U 2012-12-21 2012-12-21 High-voltage frequency converter system provided with safe bypass circuit Expired - Fee Related CN203119839U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012207137590U CN203119839U (en) 2012-12-21 2012-12-21 High-voltage frequency converter system provided with safe bypass circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012207137590U CN203119839U (en) 2012-12-21 2012-12-21 High-voltage frequency converter system provided with safe bypass circuit

Publications (1)

Publication Number Publication Date
CN203119839U true CN203119839U (en) 2013-08-07

Family

ID=48900152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012207137590U Expired - Fee Related CN203119839U (en) 2012-12-21 2012-12-21 High-voltage frequency converter system provided with safe bypass circuit

Country Status (1)

Country Link
CN (1) CN203119839U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167976A (en) * 2014-03-12 2014-11-26 大连达翔电控设备制造有限公司 High-voltage variable-frequency speed regulating device for internal mixers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104167976A (en) * 2014-03-12 2014-11-26 大连达翔电控设备制造有限公司 High-voltage variable-frequency speed regulating device for internal mixers

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130807

Termination date: 20151221

EXPY Termination of patent right or utility model