Isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply

An isolation transformer and voltage output technology, which is applied in the field of isolation transformer-type multi-level voltage output movable three-phase regulated power supply, can solve the problems of inconvenient transportation and movement, and achieve the goals of improving reliability, suppressing distortion, and improving power supply quality Effect

Active Publication Date: 2010-03-10
QINSHAN NUCLEAR POWER
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AI Technical Summary

Problems solved by technology

However, the existing regulated power supply device is difficult to realize the power supply of various voltage levels while stabilizing the voltage.
[0010] 4. At present, the existing large-scale three-phase regulated power supply devices exceeding 150KVA are all fixed
This brings inconvenience to handling and moving for some overhaul sites that need to be moved

Method used

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  • Isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply
  • Isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply
  • Isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply

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Embodiment Construction

[0033] An isolation transformer-type multi-stage voltage output movable three-phase stabilized power supply of the present invention will be introduced below in conjunction with the accompanying drawings and embodiments:

[0034] Such as figure 1 As shown, an isolation transformer-type multi-level voltage output movable three-phase stabilized power supply includes a compensation voltage stabilizer and an isolation transformer. The isolation transformer is connected to the output end of the compensation voltage stabilizer, and its secondary winding With center tap.

[0035] Such as figure 2 As shown, the compensation voltage stabilizer includes a voltage compensation circuit, a main circuit switch operation circuit, a servo motor and a control circuit, a voltage detection and return circuit and a protection circuit.

[0036]Among them, the main circuit switch operation circuit is connected with the voltage input terminal, voltage compensation circuit, protection circuit and ...

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Abstract

The invention belongs to the technical field of voltage-stabilizing power supplies, in particular to the isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply, and the invention provides the isolation transformer type multi-level voltage output mobile three-phase voltage-stabilizing power supply which has high reliability and can automatic adjustthe voltage within a certain range, realize the multi-level voltage output and be mobile. The voltage-stabilizing power supply is characterized in that the voltage-stabilizing power supply comprisesa compensation type voltage stabilizer and an isolation transformer, and the isolation transformer is connected at the output end of the compensation type voltage stabilizer. The voltage-stabilizing power supply adopts the isolation transformer, a secondary winding thereof is provided with a center tap and can output 380V / 220V / 110V three-level voltage and realize the power supply with a variety ofvoltage levels; and loads are changed into a non-grounding system, thereby improving the reliability of the power supply. Lugs are mounted at the upper part of the device, and rolling wheels are mounted below the device, thereby leading the device to become a mobile voltage-stabilizing power supply station.

Description

technical field [0001] The invention belongs to the technical field of voltage stabilizing power supplies, in particular to an isolation transformer type multi-stage voltage output movable three-phase voltage stabilizing power supply. Background technique [0002] In the repair work of the reactor hanging basket irradiation supervision tube support of Pakistan's Chasima Nuclear Power Plant, it needs to be applied to underwater electric discharge machining equipment, that is, EDM equipment. According to the requirements of the EDM commissioning manual, the allowable fluctuation range of the power supply voltage is ±10%×380V; and according to our experience of participating in refueling and overhaul in Pakistan, the voltage fluctuation range of the power grid in the Chashma area is often above ±25%×380V , the highest can reach ± ​​40% × 380V, the power supply voltage is extremely unstable. [0003] During the transformation project of the reactor hanging basket irradiation su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12
Inventor 马明泽黄志军余前军任洪涛王浩钧
Owner QINSHAN NUCLEAR POWER
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