Toshiba Current Relay RC803A-HP1 Instruction Manual page 10

Current relay
Note: The RC803's outDut
contacts are shown
with Dower source
Fig. 3 Application Example
4 . 3 Limiting S t a r t i n o c u r r e n t o f Rotors
Many eotors of uediua and large capacity use a aethod to
s t a r t b y l i m i t i n g s t a r t i n g c u r r e n t . 8y d e t e c t i n o t h e lain
circuit current, this relay can automatically advance the
starting resistance on the secondary side of the motor (in this
case, the knob of the detection delay timar and that of the