Product data sheet
Liquid-Filled Distribution Transformer 500 kVA
Model EX-LFD-500 · Three-phase pad-mounted · 25 kV class · Over 600 V
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Ratings at a glance
- Rated power
- 500 kVA
- Primary voltage
- 25 kV
- Secondary voltage
- 480/277 V
- Cooling
- ONAN, mineral oil
- Frequency
- 60 Hz
Certifications
UL2200IEEEC57.12.00IEEEC57.12.34ANSIC57.12.28
Electrical specifications
Rated power500 kVA
Primary voltage25 kV (delta)
Secondary voltage480Y/277 V
BIL primary125 kV
BIL secondary30 kV
Vector groupDyn11
No-load losses760 W
Load losses at 85 C5,300 W
Impedance5.75%
Temperature rise65 C average
Mechanical & enclosure
- Enclosure
- Pad-mounted, tamper-resistant
- Dimensions (LxWxH)
- 1,650 x 1,250 x 1,700 mm
- Weight (untanked)
- 1,850 kg
- Oil volume
- 420 L mineral oil
- Bushings HV
- Loadbreak, 200 A
- Bushings LV
- Spade, 1,200 A
- Enclosure finish
- ANSI 70 gray polyester powder coat
Features
Sample corrosion-resistant tank, stainless steel hardware, gasketed handhole, tap changer with five 2.5% positions, pressure relief device, drain valve with sampler, and lifting lugs. Fully compliant with utility distribution requirements over 600 V.
Notes
- Illustrative datasheet for demo purposes only.
- Extended warranty available up to 5 years.
- Optional low-flammability ester fluid available on request.
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