ETC EA5K3 Bedienungsanleitung
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.
1
2
3
4
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+, FLoosen connection
Check F+, Fconnection
F+, FPolarity reversed
F+, Freverse 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
T
L
O
V
C
I
T
A
M
O
T
U
A
A
G
E
R
E
G
U
L
A
T
O
R
Unit : mm
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