Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator

A technology of compensation coils and control devices, applied in reactive power adjustment/elimination/compensation, reactive power compensation, circuit devices, etc., can solve problems such as short circuit, affecting the normal operation, reliability and practicability of three-phase voltage stabilization and control devices , to reduce costs and increase reliability

Inactive Publication Date: 2006-05-10
GUANGXI UNIV +1
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Problems solved by technology

Moreover, in the compensation switching of the corresponding winding coils of the device, there is a phenomenon that the contacts of the contactor are short-circuited between the phases or the phase line and the neutral line due to arcing, which affects the normal operation of the three-phase voltage stabilizing and regulating device. reliability and practicality

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  • Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator
  • Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator
  • Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator

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Embodiment Construction

[0024] Below, the present invention will be described in detail in conjunction with the accompanying drawings.

[0025] The present invention is carried out on the basis of the company's previous application "Three-phase voltage stabilizing control device and control method", the application number is 20410060781.x. In order to express clearly, the working principle of the present invention will be described below with the structure and compensation method of the A-phase circuit in the three-phase circuit, and the circuit structures of the other phases are the same.

[0026] figure 1 Shown is the schematic diagram of the compensation circuit of phase A of the present invention, and the structural principles of the other two phases are the same, and so on. exist figure 1 In order to keep the drawing clean, the protective contact KD of the original application is omitted. The A-phase secondary winding of the three-phase compensation transformer T has a coil Q, one end of whic...

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Abstract

This invention discloses one three-way stable adjusting device compensating coil inducing voltage and touch point arch removing method, which comprises compensating transducer series initial coil, control circuit and its coil head touch point, which is characterized by the following: setting voltage reducing touch points between multiple series compensating coils to divide multiple series coil into front and back sections; The coil two ends are connected to one arc removing coil controlled by arc coil to Reduce the inducing coil voltage below 660 v; Connecting touch point coil in each initial compensation coils two ends to keep current unchanged through coil by reverse electricity energy to make the adjusting device operate reliable.

Description

technical field [0001] The invention relates to a circuit device for compensating reactive power, in particular to a voltage stabilizing and regulating device for phase voltage and line voltage of a three-phase circuit, a method for compensating coils for reducing induced voltage and contact arc suppression. Background technique [0002] The voltage fluctuation of the existing power grid often exceeds the national regulations during the peak period and the low peak period, even exceeding ± 10%, especially the terminal voltage of the low voltage 380V is particularly unstable. The current voltage regulating and stabilizing devices are mainly servo-type voltage regulating methods, and the servo motor type uses carbon brushes for voltage regulation, and the phenomenon of arcing when the carbon brush replaces the thread end slot is easy to burn out the coil and has a high failure rate. It is not suitable for use in relatively harsh environments, which will reduce the operating pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02H9/08H02J3/12
CPCY02E40/30
Inventor 海涛骆武宁黎建钢
Owner GUANGXI UNIV
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