Series 200 Power Conditioners
Instruction Manual
SECTION THREE
3.1
PERFORMANCE
A detailed performance specification is available from Invensys Customer Service Centres.
Details given here are those easily measured on site and useful for assessment of proper
operation or otherwise.
Output Voltage
is factory set to the value stated on the rating plate and cannot easily be
changed on site. Setting conditions are:
1. Nominal input voltage and frequency.
2. 85% of Full Load - Resistive.
3. Precision, True-RMS voltmeters used.
4. Operation temperature compensated.
So long as input voltage is within rated range, output voltage will be /-3% of nominal
with normal service variations of the other parameters. Even with input considerably outside
rated input range, output is generally maintained 3%, -8%. This range is maintained for
loads in the approximate range of 20% to 120% of rating. With very light loads, output voltage
may be as high as +5% under some conditions. The above regulation description when applied
to 3 Phase units refers to phase to neutral output voltage and will generally be true for phase to
phase voltages if currents are balanced within 15%.
WITH GROSSLY UNBALANCED LOADS,
PHASE TO PHASE VOLTAGES MAY BE UNACCEPTABLE FOR SOME LOAD EQUIPMENT
DUE TO UNBALANCED PHASE SHIFTS. HOWEVER PHASE TO NEUTRAL VOLTAGES
ARE UNAFFECTED BY LOAD UNBALANCE. THE POWER CONDITIONER DOES NOT
REGULATE PHASE TO PHASE VOLTAGE.
Rated Input Range of 200-26-XXX series is 190V to 260V Phase to Neutral (-21%, +8% for
240V). For the 200-25-XXX series, the range is 190V to 260V Phase to Neutral (-17%, +13%
for 230V). For the 200-44-XXX series, the range is 180V to 240V Phase to Neutral (-18%, +9%
for 220V). The range for the 200-46-822 unit, which CAN ONLY be configured for a three phase
input, is 329V to 450V phase to phase, i.e. -21%, +8% for 415/240V and for the 200-35-822 is -
17%, +13% for 400/230V. For the 200-24-XXX the range is -18%, +9% for 380/220V. Useable
output voltage is available for limited periods on all units for input deviations as high as +/-40%.
Operating Temperature
- during normal operation, the internal core(s) and windings of the
power conditioner will operate at around 120
o
C. This is normal, and well within the allowable
temperature rating of the insulation system. Operating temperature of the core/coil
assembly(ies) when energised, but not loaded, is only slightly less than when fully loaded.
Overload Protection
- these power conditioners have inbuilt protection against overloads or
short circuits on the output. Under normal service conditions, the power conditioner will supply
up to 200% of full load for 10 seconds or more without damage or excessive voltage drop. This
allows for startup requirements of some computer equipment (up to 500% is possible for very
short duration for flash inrush, e.g. capacitor charging currents). If more severe overloads are
applied the power conditioner will virtually shut down, preventing damage. Even under direct
short circuit, load current is restricted to around 200% of rated full load, which will not damage
the unit even if it is in this condition indefinitely.
When the overload is removed the unit will continue to operate in a normal fashion.
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