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T O S H I B A
further, when this relay is used in a uotor circuit, the
detection delay timer should be set lonfler than the startinv
time (about 120%) so that this relay is not actuated by inrush
current.
after the tiee Deriod of the detection delay timer has elapsed.
the relay is actuated when the set tiue of the response delay
4.2 Undercurrent Detection on Hotors
To utilize the undercurrent detection function, the relay
i s u s e d i n a notor c i r c u i t w i t h a f i x e d l o a d , t o d e t e c t l i v h t
or no load conditions.
this relay is used to detect undercurrent when the VOlUue Of
water SUDDlied in a water Dipe is low, or in case of a thread
winding rachine, when the tension of the thread droes.
If current flowinp in the uain circuit becomes
For examDIe.
abnormal
in the case of a DUUD UOtOr,
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