Basler Electric VR63-4A/UL - Manual

Publication
9166800995
Revision
E
Instructions
Date
03/11
Copyright
2011
www.basler.com
+1 618.654.2341 (USA)
[email protected]
Model VR63-4A/UL
Part Number 9166800995
INTRODUCTION
The VR63-4A/UL voltage regulator is designed for use on
50/60 Hz brushless generators. Regulator features include
frequency compensation, overexcitation shutdown, a solid-
state buildup circuit, and EMI filtering.
SPECIFICATIONS
Power Input
Range: 190 to 240 Vac, ±10%,
1-phase
Frequency: 50/60 Hz
Burden: 500 VA
Sensing Input
Configuration: 1-phase
Frequency: 50/60 Hz
Range: 100 to 120 Vac, ±10%
Burden: 1 VA
Power Output
Maximum Continuous: 4 Adc, 63 Vdc, 252 W
Ratings
One Minute Forcing: 7 Adc, 100 Vdc, 700 W
Minimum: 15 Ω
DC Field Resistance Rating
Maximum: 100 Ω
Voltage Adjustment
90 to 132 Vac
Regulation Accuracy
Better than ±1% no load to full load.
Response Time
<1.5 cycles for a ±5% change in sensing voltage.
EMI Suppression
Internal electromagnetic interference filter (EMI filter).
Overexcitation Shutdown
Output power is removed under the following conditions:
Exciter field voltage exceeds 100 Vdc ±5 Vdc for a time
inversely proportional to voltage magnitude, or within 0.2
seconds if the exciter field voltage exceeds 135 Vdc
± 5 Vdc.
Voltage Buildup
Internal provisions for automatic voltage buildup from
generator residual voltages as low as 10 Vac.
Power Dissipation
8 W maximum
Temperature
Operating: –40 to 60°C (–40 to 140°F)
Storage: –65 to 85°C (–85 to 185°F)
Vibration
Withstands the following:
2 to 26 Hz: 1.3 G
26 to 50 Hz: 0.036 inch double amplitude
50 to 500 Hz: 5.0 G
Shock
Withstands 15 G in each of three mutually perpendicular
planes.
Weight
0.88 lb (0.4 kg)
Agencies
CSA Approved
UL Recognized
GOST-R Certified
FUNCTIONAL DESCRIPTION
Frequency Compensation
The frequency compensation characteristic of Figure 1 is
used to improve system load pickup performance by
restraining voltage recovery until frequency has also
started to recover.
The regulator is shipped from the factory set at a 45-Hz
corner frequency for 50 Hz systems. For 60 Hz systems, a
55-Hz corner frequency is achieved by removing the
jumper from the HZ terminals.
Overexcitation Shutdown
If the exciter field voltage exceeds 100 Vdc ±5 Vdc, the
regulator automatically removes the field current after a
time delay. The time delay is inversely proportional to the
magnitude of the detected overvoltage condition up to the
135 ±5 Vdc point. Beyond 135 Vdc ±5 Vdc, the field
voltage is removed within 0.2 seconds. See Figure 2.
After shutdown, reset the regulator by decreasing the
voltage below 6 Vac either by stopping the prime mover or
by interrupting the regulator input with a reset switch for 2
seconds minimum.
INSTALLATION
Mounting
The regulator may be mounted on the generator in any
convenient position (optimum cooling occurs with the long
side of the regulator vertical). Refer to the drilling diagram
of Figure 3.
Exciter Field Power Circuit
Connect regulator terminal F+ to the brushless exciter field
terminal F+, and terminal F– to terminal F–.
CAUTION
The dc resistance of the exciter field must be
greater than or equal to 15 Ω and less than
100 Ω.
Power/Sensing Input Circuit
Connect as shown in Figures 4 and 5. Power for the
exciter field and regulator circuitry is derived from the
generator output or auxiliary winding. The operable power
input range is 190 to 240 Vac.