63-23-710-8 SOLA HEVI DUTY, 63-23-710-8 Datasheet - Page 8

• Manufacturer Part Number: 63-23-710-8
• Description: Voltage Regulator/Power Conditioner
• Manufacturer: SOLA HEVI DUTY
• Series: MCRr

Specifications of 63-23-710-8

• Suppressor Type: Power Line Conditioner
• Input Voltage: 415VAC
• Output Voltage: 110V
• Width: 228.6mm
• Height: 457.2mm
• Output Voltage 3: 220V
• Output Type: Fixed
• External Height: 18"
• Output Power: 1000 VA
• Input Voltage (nominal): 380 V
• Features: Harmonic Filtering
• Mounting Type: Surface Mount
• Voltage Regulation: +/- 3 %
• Voltage Regulation Accuracy: +/- 3 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6.6 Operation with Switch-mode Power Supplies
If an MCR is used as a source for a switch-mode power supply, a slight amount
of ringing may be noticed on the sine wave output of the MCR at half cycle inter-
vals for a short duration. This ringing occurs at the point when the switch-mode
power supply current demand drops to zero. The ringing need not be a cause
for concern since it is of relatively low magnitude and frequency. Both series
have been tested with a variety of switch-mode power supplies and it has been
determined that the ringing never affected the dc outputs, nor has it been found
to degrade the components of any switch-mode power supply.
6.7 Effect of Frequency
Changes in the frequency of the supply voltage will be directly reflected in the
output voltage. A change of about 1.8% in output voltage will occur for every 1%
change in input frequency, and in the same direction as the frequency change.
6.8 Response Time
An important advantage of the SolaHD principle of static magnetic regulation is
its exceedingly fast response time compared with other types of ac regulators.
Transient changes in supply voltage are usually corrected with 1-1/2 cycles or
less; the output voltage will not fluctuate more than a few percent.
6.9 Input Characteristics
The MCR regulator transformer includes a resonant circuit, which is energized
whether it is serving load or not. Therefore, the input current at no load is approx-
imately 35% of the full-load level, even at light or no load. Input power factor will
average 90–100% at full load, but may drop to about 75% at half load and 25%
at no load. In any case, it is always leading.
6.10 Current Limitations
When the load is increased beyond the MCR rated value, a point is reached
where the output voltage suddenly collapses and will not regain its normal value
until the load is partially released. Under short circuit conditions, the load current
is limited to approximately twice of the rated full-load value, and the input power
to less than 10% of normal. The MCR will protect both itself and its load against
damage from excessive fault currents. Fusing of load circuits is not necessary.
6.11 Operation with Motor Loads
Because of the current-limiting effect described above, special attention should
be given to motor applications. In general, the regulator must have a load rating
nearly equal to the maximum power drawn during the starting cycle. This may
run from two to eight times the normal (running) rating of the motor. In doubtful
cases, it is advisable to measure the actual starting current.
MCR Portable Series Instruction Manual • 8