1 MVA DRY TYPE TRANSFORMER

• Medium Voltage Dry Type Transformer, 1 MVA, 3 PH, 60 Hz, P/N 8375L
• Primary: 460 VAC, 1255 Amps, Delta
• Secondary: 4000 VAC L-L or 2310 VAC L-N, 144 Amps, Wye
• Secondary taps: 2 @ 2.5% FCAN, 2 @ 2.5% FCBN
• High voltage BIL: 30 KV
• Low Voltage BIL: 10 KV
• Aluminum windings
• Insulation class: 220ºC
• Temperature rise: 150ºC
• NEMA 3R Enclosure: 92″H x 90″W x 56″D
• Estimated weight: 6720 lbs.

The Photo of the transformer inside a NEMA 3R enclosure is shown below:

Features / Options:

High Voltage:

• High Voltage KV BIL: 30
• High Voltage Taps: 2 above, 2 below at 2.5%
• High Voltage Windings: Aluminum
• High Voltage: 4000Y/2310
• HV stub up bus

Low Voltage:

• Low Voltage KV BIL: 1
• Low Voltage Windings: Aluminum
• Low Voltage: 460 D
• LV stub up bus

Core & Coil:

• Factory standard impedance
• Step-up application
• Transformer efficiency is EXEMPT from the requirements of DOE 2016
• Transformer is UL & CSA listed
• Vacuum-pressure impregnated (VPI) windings-Polyester resin

Physical & Environmental:

• 64 dB sound level-ANSI IEEE Standard
• Recommended clearances from walls or other obstructions required for access and ventilation: Front = 36″, Top = 18″, Rear = 12″ (36″ for maintenance purposes)

Finish:

• Standard factory paint process with epoxy paint-paint color ANSI 61 light gray color

Testing:

• Routine test per ANSI C57.12.01 are included

Protection:

• Transformer has a 220 degrees C Insulation System

Enclosure:

• Approximate basic enclosure dimensions: 92″H x 90″W x 56″D
• Total Weight: 6720 lbs.
• Case Size ID: US90
• Case Type: Outdoor (NEMA 3R)
• Continuous ground bus – 600 Amp minimum
• Transformer design is in compliance with the default SDS (Spectral reponse acceleration) values at jobsite. For higher SDS values or OSHPD compliance consult factory
• Transformer enclosure is of knock down design
• Transformer provided with an Outdoor NEMA 3R enclosure with louvers – ANSI Category B construction for installation in areas accessible to authorized personnel only

Remarks:

• Approval / Record drawings lead time: 2 weeks after receipt of coordination information
• Transformer factory did not receive formal Customer Specifications with “Request for Quote”. Price is based strictly on providing ratings, features, options and constructions as described on this quotation only
• Warranty per Factory Terms and Conditions: 12 months after energization or 18 months after shipping, whichever occurs first

The schematic diagram of the transformer is shown below:

To discuss your specific application, please call our phone number at (714) 624-4740, or send us an email at quote@lcmagnetics.com.