Three Phase Power Output |
kVA |
15, 30, 45, 75, 112.5, 150, 225, 300, 500 |
Operating Frequency |
Frequency |
60Hz +/- 5% Note: 50Hz models available, consult factory |
Electrical Input |
Three Phase (15-150kVA) |
208, 240, 480, or 600 VAC (Delta) |
(225-500kVA) |
480, 600 VAC (Delta) |
Voltage Taps (15-300kVA*) * Exception |
(2) 2.5% Full Capacity Above Nominal (4) 2.5% Full Capacity Below Nominal |
(112.5kVA - 150kVA at 208 VAC or 240 VAC) |
(1) 5% Full Capacity Above Nominal (2) 5% Full Capacity Below Nominal |
(500kVA) |
(1) 3.5% Full Capacity Above Nominal (2) 3.5% Full Capacity Below Nominal |
Electrical Output |
Three Phase |
208/120 or 480/277 VAC (Wye) Note: Special voltages available |
Output Impedance |
2% to 3.5% typical |
Output Distortion |
Less than 1.0% THD added under linear load |
Load Regulation |
2% typical, no load to full load |
Overload |
Up to 500% for 10 seconds, 1000% for 1 cycle |
Isolated Neutral |
Establishes a new neutral to ground bond on the transformer’s output |
Noise Attenuation |
Common Mode |
126dB - Standar d double (2) shield 146dB - Optional triple (3) shield |
Transverse Mode |
3dB down at 10kHz, decaying 20 dB per decade; decaying 40 dB with “SPD With High Frequency” option |
Environmental |
Operating Ambient Temperature |
-25° C to +40° C |
Relative Humidity |
0 to 95% non-condensing |
Altitude |
Up to 5000 feet above sea level without de-rating |
Audible Noise |
45 to 55dBA @ 1 meter, depending on kVA size |
Efficiency |
U.S. |
Meets and exceeds U.S. Department of Energy (DOE) 2016 high efficiency standards identified under DOE 10 CFR Part 431 |
Canada |
Meets and exceeds CSA Standard C802.2-12 |
K-factor Ratings |
Ratings |
K13 |
Neutral Size |
Twice the ampacity of the secondary phase conductor on three phase models |
Harmonic Handling Capability |
Designed to handle the following percentages of fundamental and harmonic currents, without exceeding temperature rise limits. |
|
K13 |
Fundamental 60 Hertz |
100% |
3rd Harmonic |
40% |
5th Harmonic |
42% |
7th Harmonic |
25% |
9th Harmonic |
7% |
11th Harmonic |
10% |
13th Harmonic |
8% |
15th Harmonic |
3% |
17th Harmonic |
2% |
NOTE: The chart above represents only one scenario (per K-factor rating) of an infinite combination of harmonic content that could add up to a specific K-factor. Consult factory with your harmonic load profile for assistance in K-factor selection. |
Harmonic Elimination |
Protecting the loads from voltage and current distortions caused from triplen harmonics (3rd, 9th, 15th, 21st, etc.) |
General |
Transformer Construction |
All copper winding and conductor construction, dry type transformer with M3, grain-oriented silicon steel |
Electrical Connection |
Copper bus provided for hardwired input and output. Note: Optional lug kits available |
Basic Impulse Level |
10kV |
Temperature Rise |
135° C rise above ambient, under non-linear loading per UL 1561 standard |
Cooling |
Convection cooled |
Enclosure |
Standard, floor mounted: NEMA 2 up to 225kVA; NEMA 1 at 300kVA and 500kVA Note: Optional NEMA 3R outdoor enclosure available up to 225kVA |
Certifications |
Safety |
UL 1561 Listed, labeled for operation with or below a specific K-factor rating; C-UL listed to CSA Standard C22.2, No. 47-13 |
RoHS |
Compliant |
Quality |
ISO 9001:2015 |