TY - JOUR
T1 - Quench detection method without a central voltage tap by calculating active power
AU - Nanato, N.
AU - Nakamura, K.
N1 - Funding Information:
This work was partially supported by a research grant of the Ministry of Education, Science, Sports and Culture for Research Fellow of the Japan Society for the Promotion of Science, 2053.
PY - 2004/1
Y1 - 2004/1
N2 - In this paper, we present an electric quench detection method without a central voltage tap which may cause the short-circuit of the lead-wires from the voltage taps in the quench detection of a large AC superconducting coil. In this method, an inductive voltage detection coil is used instead of the central voltage tap. The inductive voltage detection coil is electrically insulated from a superconducting coil and therefore the lead-wires do not break down. Through the quench detection tests for a Bi-2223/Ag HTS coil, we show the feasibility of the proposed method for detecting the quench of the large AC superconducting coil.
AB - In this paper, we present an electric quench detection method without a central voltage tap which may cause the short-circuit of the lead-wires from the voltage taps in the quench detection of a large AC superconducting coil. In this method, an inductive voltage detection coil is used instead of the central voltage tap. The inductive voltage detection coil is electrically insulated from a superconducting coil and therefore the lead-wires do not break down. Through the quench detection tests for a Bi-2223/Ag HTS coil, we show the feasibility of the proposed method for detecting the quench of the large AC superconducting coil.
KW - AC superconducting coil
KW - Inductive voltage detection
KW - Quench detection
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U2 - 10.1016/S0011-2275(03)00158-9
DO - 10.1016/S0011-2275(03)00158-9
M3 - Article
AN - SCOPUS:0345358594
VL - 44
SP - 1
EP - 5
JO - Cryogenics
JF - Cryogenics
SN - 0011-2275
IS - 1
ER -