Table 1-4 Safety Devices - Carrier TRANSICOLD 69UG15 Series Operation And Service

Diesel driven generator set

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Table Of Contents

Table of Contents

1.8 SAFETY DEVICES

Safety devices, such as circuit breakers, fuses, and

safety switches, protect system components from

damage.

The AC generator, solid state battery charger, fuel

heater, high water temperature, safety relay, total time

meter and intake heater are protected by circuit

breakers. If a safety device opens and there is an

interruption of electrical current, the electronic governor

module will be de−energized, which will also

de−energize the fuel solenoid, interrupt the fuel flow to

the engine and stop the engine.

Unsafe Condition

Low engine lubricating oil pressure

High engine cooling water temperature

Low coolant

Excessive current draw by the safety re-

lay, fuel heater, water temperature gauge,

oil pressure gauge or total time meter

Excessive current draw by the electronic

governor module

Excessive current draw on intake heater

circuit

Excessive current draw on 230 volt feed

circuit

Excessive current draw by load

T-343

In units with auto restart, the engine, engine control

devices, and engine monitoring devices are protected

by the auto restart module, low coolant sensor (if

equipped), circuit breaker, low oil pressure switch, and

high water temperature switch. These safety devices

monitor system operating conditions and open a set of

electrical contacts when an unsafe condition occurs. If a

safety device opens and there is an interruption of

electrical current, the electronic governor module will be

de−energized, which will also de−energize the fuel

solenoid, interrupt the fuel flow to the engine and stop

the engine.

De−energizing the fuel solenoid shuts off the fuel supply

to the engine; thus stopping the engine. Safety device

specifications are provided in Table 1-4.