Published February 2011 | Version v1
Journal article Metadata-only

A Design Model of Core Snubber for EAST NBI

Creators

  • 1. Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240 (China)
  • 2. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)

Description

A transformer type iron core snubber, as a protective device against the stray capacitance during the breakdown in EAST, is analyzed in detail. Three kinds of topology are presented. Then with the analysis for equivalent circuit, the ranges of three key parameters, i.e., secondary side resistance, leakage inductance and snubber inductance, are determined. By considering the saturation of the magnetic material, a design principle is also presented. A nearly 1:10 core snubber is tested. It is proved that a high permeability core with secondary resistor can restrain the discharge current effectively.

Availability note (English)

Available from http://dx.doi.org/10.1088/1009-0630/13/1/23

Additional details

Identifiers

DOI
10.1088/1009-0630/13/1/23;

Publishing Information

Journal Title
Plasma Science and Technology
Journal Volume
13
Journal Issue
1
Journal Page Range
p. 115-120
ISSN
1009-0630

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43018130
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
CAPACITANCE; DESIGN; EQUIVALENT CIRCUITS; HT-7U TOKAMAK; INDUCTANCE; IRON; MAGNETIC MATERIALS; PERMEABILITY; RESISTORS; TRANSFORMERS
Descriptors DEC
CLOSED PLASMA DEVICES; ELECTRICAL EQUIPMENT; ELECTRICAL PROPERTIES; ELECTRONIC CIRCUITS; ELEMENTS; EQUIPMENT; MATERIALS; METALS; PHYSICAL PROPERTIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES; TRANSITION ELEMENTS