Title:
METHOD FOR DECIDING LIMITATION OF LOAD ON LINE
Document Type and Number:
Japanese Patent JP3129181
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To control the conduction current on a line just to a maximum level within thermal limit while taking account of weather conditions by delivering a feeder interruption command when a predicted temperature of the line after a predetermined time later is increasing over a decision level or when an estipated temperature exceeds the decision level for a predetermined time or longer continuously.
SOLUTION: When a temperature θn+j1 of a line after a predetermined time later predicted while taking account of weather conditions has increasing trend and a decision is made that the highest allowable temperature θL is reached surely (decision of event 2), or when a decision is made that a temperature θn. of the line estimated while taking account of weather conditions has exceeded a dangerous level θH for a predetermined time or longer (decision of event 1), a feeder interruption command is delivered by determining that the load must be limited with no delay through a so-called predictive decision method. According to the method, the conduction current on a line can be limited just to a maximum level within thermal limit.
Inventors:
Keiichiro Takada
Yoshifumi Minowa
Yoshifumi Minowa
Application Number:
JP4420196A
Publication Date:
January 29, 2001
Filing Date:
February 05, 1996
Export Citation:
Assignee:
Nissin Electric Co., Ltd.
International Classes:
H02H9/02; H02H5/04; H02H6/00; H02J3/00; (IPC1-7): H02H6/00; H02H5/04; H02J3/00
Domestic Patent References:
| JP4317511A | ||||
| JP530637A |
Attorney, Agent or Firm:
Ryutaro Fujita