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RTT DESKTOP TEST SET– INSTRUCTION MANUAL
61
RTT Desktop Test Set
Chapter 4: Motor Management &
Metering
GE Consumer & Industrial
Multilin
Motor Management & Metering
4.1
The 369 Motor Management Relay
4.1.1
Overview
The 369 Relay has 3-phase current inputs and 3-phase voltage inputs with greater than
200 KOhm VT burden. There are also 5 programmable digital inputs other than ACCESS
switch input designed for Dry contact connection only and 4 Form-C output relays. The
369 Relay monitors up to 12 RTD inputs, each RTD being field programmable as a 3-wire
type of 100 Platinum, 100 Nickel and 120 Nickel.
All features of the RTT can be applied to the 369 Relay. However (a) there are 2 unused
input terminal wires, and (b) a modification is required to the cable to fit the 369 terminals.
Modification of the Product Cable
For the wires related to contact inputs and RTDs (16 in total), cut the lugs off the wire and
strip the wires to make them fit the 369 terminals.
The lugs to be cut are: R1+, R1-, R1C, R2+, R2-, R2C, R3+, R3-, R3C, DIC, DI6, DI5, DI4, DI3, DI2
and DI1.
Unused Wires
For the unused wires (2 in total), it is recommended that user tape the lugs to ensure
isolation of the contacts so that no problems are caused by wires touching.
The unused wires are: DI8 and DI7.