ETC EA5K3 Manual de usuario

KUTAI ELECTRONICS INDUSTRY CO., LTD.

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

Headquarters : No.3, Lane 201, Chien Fu St., Chyan Jenn Dist., Kaohsiung 80664, TAIWAN

EA5K3

Generator Automatic Voltage Regulator

Operation Manual

Self Excited Slip Ring TypeAutomatic Voltage Regulator

with closed-loop feedback circuit

Designed For Small Diesel and Gasoline Generators

* All manufacturer names and numbers are used for reference purpose only

and do not imply that any part is the product of these manufacturer.

___________________________________________________________________________________________

2EA5K3

SECTION 1 : SPECIFICATION

Sensing Input

Voltage Adjust Range

Voltage 16 –25 Vac

115/230 Vac +/- 15%

Frequency 50/60 Hz

Voltage Thermal Drift

Power Input

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

Voltage 60 100 Vac

Frequency 50/60 Hz

Environment

Operating Temperature -20 to +65 ˚C

Excitation Output

Storage Temperature -40 to +85 ˚C

Voltage Max. 100 Vdc @ power input 85 Vac

Relative Humidity Max. 90%

Current Continuous 3A

Vibration 1.5 Gs @ 5 –30 Hz

Intermittent 5A for 60 secs.

5.0 Gs @ 30 –500 Hz

Resistance Min. 25 ohms

Dimensions

Voltage Regulation

64.5 (L) x 158.2 (W) x 40.0 (H) mm

Less than +/- 1% ( with 4% engine governing )

Weight

Build Up Voltage

190 g +/- 2%

2 Vac residual volts at power input terminal

SECTION 2 : SUMMARY

The EA5K3 automatic voltage regulator is a direct

replacement for small brush type generators from 3 to

7.5 KW. This AVR employs an enhanced closed-loop

feedback circuit, which greatly improves voltage

stability, also added is a new VOLT adjustment pot, not

available in the original. This new AVR significantly

improves generator performance.

SECTION 3 : WIRING & ADJUSTMENT

3.1 Figure 1, show the plug connections numbered 1,

2, 3 and 4.

3.2 Line 1 (white) and Line 2 (green) are the sensing

input lines, they are used to match the generator

output voltage (115 / 230 Vac) Some generators

have an independent sensing connections, If this

is your case, open wire 2 (green) and reconnect

to its matching connector plug.

3.3 Line 3 (blue) and Line 4 (blue) are the AVR

Power Input terminals.

3.4 The independent red (+ Positive) and white wire

( Negative) ending in spade terminals attach to

the generators slip rings (F+ and F).

3.5 Moving the voltage adjustment potentiometer

(VOLT) located on the back and center of the

AVR changes the output voltage +/- 15%; moving

it clockwise increases voltage and moving it

counter-clockwise decreases voltage.

WARNING

Overly field flashing may damage the AVR or

generator excitation winding.

Please make sure you have read and understand

the contents of the instruction manual prior to

installation. Incorrect wiring connection may

result in irreversible damage to the product and

other equipments.

MODEL: EA5K3

Stator

Aux.Winding

Field

Winding

115V N115V

Figure 1 Connection

___________________________________________________________________________________________

EA5K3 3

SECTION 4 : OUTLINE / DIMENSION

SECTION 5 : COMPATIBLE REPLACEMENT

BRAND

PART NUMBER

ELEMAX

SH4000, SH5000, SH6000, SH7000

HONDA

EP3800, EP5000, EC6500

KAWSAKI

GE4300A, GE5000AS, PP4000, PP6000

KUBOTA Low Boy

GL6500S

SUZUKI

LTZ400

SAWAFUJI

SH4600EX, SH5300EX, SH6500EXS, SH7600EX

YAMAHA

EDL6500S

SECTION 6 : TROUBLE SHOOTING

SYMPTOM

CAUSE

CORRECTION

Voltage does not build up

F+, FLoosen connection

Check F+, Fconnection

F+, FPolarity reversed

F+, Freverse connection

Residual voltage less than 1.5V

Execute field excitation

CN1 Connection incorrect

Reference from Figure 2 to correct

connection

Out voltage high

Voltage over AC130 / 260V and can not

be adjusted

Defective AVR. Please contact with

service provider.

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

Figure 2 Outline Drawing

ATTENTION

1. AVR can be mounted directly on the engine,

genset, switchgear, control panel, or any

position that will not affects operation. For

dimension reference, please see Figure 2.

2. All voltage readings are to be taken with an

average-reading voltmeter Meggers and

high-potential test equipment must not be

used. Use of such equipment could damage

the AVR.

3. Secure all wiring connection. Do not install

AVR at a place with high vibrations to prevent

loose connections. For safety avoid contact

with the AVR case while in operation.

4. 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.

KUTAI

MODEL: EA5K3

VOLT

Unit : mm

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