Kohler 19EFOZ/23EOZ, 8.5EFOZ manual Voltage Regulator Adjustment 4-27EFOZ and 5-32EOZ Models, Stab

Kraus Naimler/American Solenoid

4-Wire, 3-Phase Generator Sets

L1 L1

3 2 4 1

L2				L2
To Generator 7	6	8	5	To Shore
Set				Power
L3				L3
11	10	12	9
L0				L0
15	14	16	13
L1 L2	L3	L0
To Load				I-940

Figure 8-10 Marine Manual (Ship-to-Shore) Transfer Switch, continued

8.4Voltage Regulator Adjustment (4-27EFOZ and 5-32EOZ Models)

WARNING

Hazardous voltage. Moving rotor.

Can cause severe injury or death.

Operate the generator set only when all guards and electrical enclosures are in place.

Testing the voltage regulator. Hazardous voltage can cause severe injury or death. High voltage is present at the voltage regulator heat sink. To prevent electrical shock do not touch the voltage regulator heat sink when testing the voltage regulator.

(PowerBoostt, PowerBoostt III, and PowerBoostt V voltage regulator models only)

The voltage regulator is typically located in the controller. Adjustments are possible without removing the voltage regulator. The voltage regulator adjustment procedure applies to both the PowerBoost IIIE (Figure 8-11) and PowerBoost V (Figure 8-12) voltage regulators.

Note: Broadrange generator sets. The following adjustment procedure is for readjustment of the voltage regulator and governor for broadrange generator sets with mechanical governors.

Note: Special tool. Frequency meter 50/60 Hz.

Note: Rheostat connection. Connect a customer-provided rheostat across regulator leads/terminals 33 and 66 to adjust the generator output voltage from a location remote from the generator set. The rheostat (10 kOhms, 1/2 watt minimum) provides a 5-volt adjustment range.

1

2

3

1. Voltage adjustment potentiometer TT-875-11

2.Stability adjustment potentiometer

3.Volts/Hz adjustment potentiometer

Figure 8-11 PowerBoost IIIE Voltage Regulator

			8
			7
	STAB		6
			5
	V/HZ	VOLTS	4
			3
2	3	1	2
			1

1. Voltage adjustment potentiometer

2. Stability adjustment potentiometerTT-875-11

3. Volts/Hz adjustment potentiometer

Figure 8-12 PowerBoost V Voltage Regulator

72 Section 8 Reconnection/Adjustments TP-6069 6/03