Winco AVC63-4A - Manual

Publication
9285800991
Revision
C
Instructions
Date
09/12
Copyright
2012
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Model AVC63-4A
Part Number 9285800102
INTRODUCTION
AVC63-4A voltage regulators are designed for use with
50/60 hertz brushless generators. Regulator features
include frequency compensation, overexcitation shutdown,
a solid-state buildup circuit, and electromagnetic
interference (EMI) filtering.
ELECTRICAL SPECIFICATIONS
DC Output Power Ratings
Continuous:
4 Adc at 63 Vdc (252 W)
One-Minute Forcing: 6 Adc at 90 Vdc (540 W)
10-Second Forcing: 9 Adc at 134 Vdc (1,206 W)
Exciter Field DC Resistance Range
15 to 100 Ω
AC Power Input
Operating Range:
95 to 139 Vac, ±10%, single-
phase, 50/60 Hz
Burden: 450 VA
Sensing Input Operating Range
95 to 139 Vac, ±10% or 190 to 277 Vac, ±10%, single-
phase, 50/60 Hz
Regulation Accuracy
Better than ±1.0%, no-load to full-load
Response Time
Less than 1.5 cycles for ±5% change in sensing voltage
EMI Suppression
Equipped with internal EMI filter
Overexcitation Shutdown
Field voltage shuts down after a time delay if exciter field
voltage rises above the normal operating range. See
Operating Features, Overexcitation Shutdown.
Voltage Buildup
Regulator has internal provisions for automatic voltage
buildup from residual generator voltage as low as 6 Vac.
Power Dissipation
15 W maximum
PHYSICAL SPECIFICATIONS
Terminations
Quarter-inch, quick-connect terminals accept Amp 154718-
3 (positive-lock receptacle) or Amp 154719-1 (nylon
receptacle).
Temperature
Operating Range:
–40 to 60°C (–40 to 140°F)
Storage Range: –40 to 85°C (–40 to 185°F)
Vibration
Withstands 1.2 G at 5 to 26 Hz, 0.036” double amplitude at
27 to 52 Hz, and 5G at 53 to 1,000 Hz. Withstands up to 20
G in each of three mutually perpendicular axes.
Weight
283 g (10 oz) net
Dimensions
See Figure 1 for AVC63-4A dimensions.
OPERATING FEATURES
Corner Frequency Selection and Adjustment
The AVC63-4A corner frequency setting is factory-preset at
55 hertz for use with 60 hertz systems. For use with 50
hertz systems, a 45 hertz corner frequency setting is
achieved by connecting a jumper across terminals HZ1 and
HZ2.
The corner frequency is adjusted by the AVC63-4A UF ADJ
control. Clockwise rotation raises the corner frequency
(shifts the curve to the right). To adjust corner frequency:
1. Adjust the UF ADJ control fully counterclockwise.
2. Start and set the generator at its rated voltage.
3. Adjust the generator frequency to the desired
kneepoint frequency.
4. Slowly adjust the UF ADJ control clockwise until the
generator voltage just begins to decrease.
Figure 2 illustrates the AVC63-4A frequency compensation
curves.
Overexcitation Shutdown
If the exciter field voltage rises above the normal operating
range, the overexcitation shutdown function removes the
AVC63-4A output power after a time delay that is inversely
proportional to the magnitude of the overvoltage detected.
The time characteristic for this function is illustrated in
Figure 3.
After output power is removed, the regulator can be reset
by decreasing the input voltage below 6 Vac for a minimum
of 2 seconds. This can be accomplished by stopping the
prime mover or interrupting the regulator input with a reset
switch.
Stability Adjustment
The response rate of the generator output voltage to a
change in load is adjusted through the AVC63-4A STAB
control. Clockwise rotation increases the response time.
This decreases the amount of voltage overshoot which
increases stability. Counterclockwise rotation decreases
the response time. This increases the amount of voltage
overshoot which decreases stability.