Generac Power Systems 5414 4. - Fixed Excitation Test, Step B, 5. - Fixed Excitation Test, Step C

Section 7

DIAGNOSTIC TESTS

TEST 4 RESULTS

	A	B	C	D	E	F	G
VOLTAGE RESULTS	ABOVE	ABOVE	BELOW	ZERO OR	BELOW	BELOW	ABOVE
WIRE 2 & 6	60 VAC	60 VAC	60 VAC	RESIDUAL		60 VAC	60 VAC
EXCITATION WINDING				VOLTAGE
				(5-12 VAC)
VOLTAGE RESULTS	ABOVE	BELOW	ABOVE	ZERO OR	BELOW	BELOW	ABOVE
WIRE 11S & 22S	60 VAC	60 VAC	60 VAC	RESIDUAL		60 VAC	60 VAC
POWER WINDING				VOLTAGE
SENSE LEADS				(5-12 VAC)
ROTOR AMP DRAW	1.1 A	1.1 A	1.1 A	ZERO	1.4 A	.85 A	ZERO
RV45	± 20%	± 20%	± 20%	CURRENT		± 20%	CURRENT
(MODEL 5410/5411)				DRAW			DRAW
ROTOR AMP DRAW	.85 A	.85 A	.85 A	ZERO	1.2 A	.85 A	ZERO
RV55	± 20%	± 20%	± 20%	CURRENT		± 20%	CURRENT
(MODEL 5412/5413)				DRAW			DRAW
ROTOR AMP DRAW	1.2 A	1.2 A	1.2 A	ZERO	1.5 A	1.2 A	ZERO
RV65	± 20%	± 20%	± 20%	CURRENT		± 20%	CURRENT
(MODEL 5414/5415)				DRAW			DRAW

(MATCH RESULTS WITH LETTER AND REFER TO FLOW CHART – Problem 2 on Pages 28 & 29)

105 VAC RED TEST LEAD

VOLTAGE

REGULATOR

BLACK TEST LEAD

2

6

0

13 13

15	22S
JUMPER WIRE	11S

FUSE HOLDER (F1) 4 WIRES 4 REMOVED FROM

4VOLTAGE REGULATOR

RED TEST LEAD

95 VAC

BLACK TEST LEAD

VOLTAGE

REGULATOR

			2
			6
			0
13	13
15
	JUMPER WIRE
			22S
			11S
FUSE HOLDER (F1)		4	WIRES 4 REMOVED FROM

4VOLTAGE REGULATOR

Figure 7-4. – Fixed Excitation Test, Step B Figure 7-5. – Fixed Excitation Test, Step C

4.Disconnect Wire 2 from the Voltage Regulator (VR) and connect one meter test lead to that wire. Disconnect Wire 6 from the Voltage Regulator and connect the other meter test lead to that wire. See Figure 7-4. Start the generator and measure the AC voltage. It should be above 60 volts. Record the results and stop the generator.

5.Re-connect Wire 2 and Wire 6 to the Voltage Regulator.

6.Disconnect Wire 11S from the Voltage Regulator (VR) and connect one meter test lead to that wire. Disconnect Wire 22S from the Voltage Regulator and connect the other meter test lead to that wire. See Figure 7-5. Start the generator and mea- sure the AC voltage. It should be above 60 volts. Record the results and stop the generator.

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