4200Fa Efficiencies And Thermal Losses At Various Loads; 7.10.1 Efficiency With No Internal Transformers; Table 7.1 Thermal Loss In Btu/Hr. At Load (No Internal Transformers) - Toshiba 4200FA Installation And Operation Manual

Crest Factor
Neutral Line Conductor
Harmonic Voltage Distortion
Inrush Current protection
Efficiency (Typical)
Heat loss to be removed
Audible Noise
Environment
Operating Temperature
Operating Humidity
3
Altitude
1 – Specified at rated conditions under balanced linear loads.
2 – Battery backup time may vary depending on the operating conditions and ambient temperature at the installation site. An initial
charge time of 24 hrs is necessary to obtain proper battery performance level before the unit is placed in operation.
3 – At 6600 ft. (2000 m) above sea level, output capacity should be derated by 3% (Consult factory for higher elevations).
4 – Prolonged operation at this level requires derating of the maximum Operating Temperature to 90 °F ( 32 °C).
5 – SHORT TERM operation only (e.g. Brownouts). Operation at this level requires derating the maximum Operating Temperature to 95 °F ( 35
°C).
7.10

4200FA Efficiencies and Thermal Losses at Various Loads

The tables below list typical efficiency at 100% load, and thermal loss at various loads, for the
15/25/30/50kVA units in three configurations:
•
UPS without input/output internal transformers
•
UPS with Internal input isolation transformer
•
UPS with internal input isolation transformer and autotransformer
(NOTE: The efficiencies and thermal values listed are representative only. Individual performance may
be different due to variations in operating environment, manufacture, transformer type, and transformer
performance at different loads.)

7.10.1 Efficiency with No Internal Transformers

4200FA Series
100% Load *
*Contact the factory for additional information on efficiency vs. load curves.

Table 7.1 Thermal Loss in BTU/Hr. at Load (No Internal Transformers)

4200FA Series
100% Load
75% Load
50% Load
25% Load
0% Load
4200FA Installation and Operation Manual
15 kVA Int Batt 25 kVA Int Batt
87.5% 89.2%
15 kVA Int Batt 25 kVA Int Batt
5849
4875
4134
3304
1,798
2.5 – 3.0 within the kW range
1.73 times line rating
1.5% max (linear load)
Automatic Transfer to bypass, then retransfer to inverter
AC/DC/AC – See Table 5.10,
See Table 5.10
~65dB @ 1 meter from the front of the unit
32 – 104 °F (0 – 40 °C); optimal temperature is 77 °F (25 °C)
30 – 90% RH (non condensing)
Less than 2000 meters
30 kVA Int Batt
87.5%
30 kVA Int Batt
8262 11,699
6455 9096
4964 7339
3873 6150
2,409 2,890
DC/AC: 85%
3
50 kVA Int Batt
88.3%
50 kVA Int Batt
18,085
14,356
12,232
8108
3,722
55