Toshiba Current Relay RC803A-HP1 User Manual

Page 9

T O S H I B A

further, when this relay is used in a

circuit, the

detection delay

should be set

than the startinv

time (about 120%) so that this relay is not actuated by inrush

current.

If current flowinp in the

circuit

abnormal

after the

Deriod of the detection delay timer has

the relay is actuated when the set

of the response delay

i s o v e r .

4.2 Undercurrent Detection on

To utilize the undercurrent detection function, the

i s u s e d i n a

circuit with a fixed load, to detect livht

or no load conditions.

For

in the case of a

this relay is used to detect undercurrent when the

water

in a water

is low, or in case of a thread

winding rachine, when the tension of the thread