Kutai EA03A Owner's manual

Brand: Kutai

Model: EA03A

Type: Owner's manual

Kutai EA03A Generator Automatic Voltage Regulator

The Kutai EA03A is a self-excited automatic voltage regulator designed for gasoline generators. It provides precise voltage regulation, ensuring a stable power supply for your electrical devices. With a voltage adjust range of 110 Vac +/- 15%, you can easily fine-tune the output voltage to meet your specific requirements. The EA03A features a robust design, including vibration resistance and a wide operating temperature range of -40 to +60 ˚C, making it suitable for various outdoor and industrial applications.

Kutai EA03A Generator Automatic Voltage Regulator

KUTAI ELECTRONICS INDUSTRY CO., LTD.

TEL : +886-7-8121771 FAX : +886-7-8121775 Website : www.kutai.com.tw

Headquarters : No.3, Ln. 201, Qianfu St., Qianzhen Dist., Kaohsiung City 80664, Taiwan

EA03A

Generator Automatic Voltage Regulator

Operation Manual

Self Excited Automatic Voltage Regulator

Designed For Gasoline Generators

___________________________________________________________________________________________

2 EA03A

SECTION 1 : SUMMARY

Sensing Input

Voltage Adjust Range

Voltage 18  20 Vac, 1 phase 2 wires

110 Vac +/- 15%

Power Input

Voltage Thermal Drift

Voltage 60  90 Vac, 1 phase 2 wires

Less than 5% at temperature range -40 to +70 ˚C

Excitation Output

Environment

Voltage 5  85 Vdc

Operating Temperature -40 to +60 ˚C

Current Continuous 3A

Storage Temperature -40 to +85 ˚C

Intermittent 4A for 60 secs.

Relative Humidity Max. 95%

Resistance Min. 25 ohms

Vibration 1.5 Gs @ 5 – 30 Hz

5.0 Gs @ 30 – 500 Hz

Voltage Regulation

Less than +/- 2% ( with 4% engine governing )

Dimensions

113.0 (L) x 41.0 (W) x 32.0 (H) mm

Build Up Voltage

5 Vac residual volts at power input terminal

Weight

127 g +/- 2%

SECTION 2 : OUTLINE / SIZE REFERENCE

● Stop engine

● Install AVR to generator field (Show as Figure 1)

75.0

CN1

input

Field"-"(black)Field"+"(red)

ADJ.

1 2

CN1

1,2 : power input

3,4 : sensing input

7.2

22.5

32.0

113.0

101.0

41.0

26.0

VOLTAGE

110.0

ATTENTION

1. AVR can be mounted directly on the engine,

genset, switchgear, control panel, or any

position that will not affect operation. For

dimension reference please see Figure 1.

2. All voltage readings should be taken with an

average-reading voltmeter. Megger or

high-potential test equipment must not be used.

Use of such equipment could damage the AVR.

3. Improper setting of under-frequency protection

could cause the output voltage of the unit to

drop or become unstable under with changes in

load. Avoid making any changes to the U/F

setting unless necessary.

Figure 1

___________________________________________________________________________________________

EA03A 3

SECTION 3 : APPLICATION MODE

BRAND

PART NUMBER

ELEPAQ

PH-1800, PH-2600

HONDA

EP-1800, EP-2500

KAWSAKI

GA-2300、GA-2900、GE-1400、GE-2200

KUBOTA Low Boy

GL6500S

MARUYAMA

ME-1800, ME-2600

SUZUKI

SV-1400L, SV-1400LD, SV-2200L, SV-2200LD

SAWAFUJI

SH-1800, SH-2600

YAMAHA

EDL6500S

SECTION 4 : TRUBLESHOOTING

SYMPTOM

POSSIBLE CAUSES

SOLUTIONS

Voltage does not build up

F+, F- not connected

Connect F+, F-

CN1 not connected

Connect CN1

Out voltage high

Voltage over AC130V can not adjusted

Defective regulator

※ Appearance and specifications of products are subject to change for improvement without prior notice.

power input winding

sensing voltage winging

exciter stator winding

generator

stator

winding

Figure 2

Kutai EA03A Owner's manual

Brand: Kutai

Model: EA03A

Type: Owner's manual

Kutai EA03A Generator Automatic Voltage Regulator

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Kutai EA03A Owner's manual

Kutai EA03A Owner's manual

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