GE MULTILIN 269 MOTOR MANAGEMENT RELAY Series Instruction Manual page 119

The value of the compensation resistor is equal to the resistance of RETURN 1 plus HOT 1.
Assuming,
R Lead Compensation = R Lead Hot
V 17,18 = V Lead Hot + V Lead Hot 1 + V RTD + V Lead Return 1 + V Lead Return
V 18,19 = V Lead Comp. + V R Comp. + V Lead Return
Since,
V Lead Compensation = V Lead Hot
⇒
V 17,18 - V 18,19 = {V Lead Hot + V Lead Hot 1 + V RTD + V Lead Return 1 + V Lead Return } -
V 17,18 - V 18,19 = {V Lead Hot 1 + V RTD + V Lead Return 1 } - V R Comp.
⇒
V 17,18 - V 18,19 = V RTD
V R Comp. = V Lead Hot 1 + V Lead Return 1
The illustration shown in figure 3 is for RTD #8, but it may be applied to any of the RTDs.
{V Lead Comp. + V R Comp. + V Lead Return }
ONLY IF
R Comp = R Lead Hot 1 + R Lead Return 1
or
APPENDIX C
C-3