Ce-niehoff-co N1380-2 Troubleshooting Guides Uživatelský manuál stáhnout pdf (Strana 2)

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TG0037A

Section A: Wiring Diagrams

B– terminal

bolt

Regulator

receptacle

Figure 2 — N1380-2 Alternator with N3109 Regulator

Figure 1 — N1380-2 Alternator Terminals

Output receptacle

CEN N1380-2 Alternator

Description and Operation

N1380-2 28 V (220 A) alternator is self-rectifying.

All windings and current-transmitting components

are non-moving, so there are no brushes or slip rings

to wear out. Ignition switch energizes regulator.

Field coil is then energized.

N3109 regulator used with these units:

• is negative temperature compensated for 28.3

± 0.1 V at 72º F for temperature variation

at –0.1 volt per 10º F.

• provides overvoltage cutout (OVCO). Regulator

will trip OVCO when system voltage rises above

32 V for longer than 2 seconds. OVCO feature

detects high voltage and reacts by signaling relay

in F– alternator circuit to open, turning off

alternator. Restarting engine resets OVCO circuit.

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Ce-niehoff-co N1380-2 Troubleshooting Guides Uživatelský manuál Strana 2