Cast Coil Transformers
RMPAC’s cast coil transformers are designed, built, and tested in accordance with the highest industry standards including NEMA, ANSI C.57, DOE, and IEEE as applicable.
They are engineered for both indoor and outdoor applications and need minimal maintenance due to their rugged construction. Cast coil transformers use environmentally safe insulation systems that don’t require the fire proof vaults and catch basins that liquid filled transformers need. This allows the installation of cast coil transformers inside buildings close to the load, improving overall system regulation and reducing costly secondary line losses. The fiberglass reinforced construction of these units also provides higher short circuit strength and impulse voltage strength.
Product Scope
- 100 kVA - 10,000 kVA
- Up to 46kV (250kV BIL)
Capabilities
Standard specs
- Self Cooled (ANN/AN)
- 60Hz
- Aluminum (Al) Windings
- 180°C (115°C Temperature Rise)
- Primary taps +/-2 x 2.5%
- Terminal Bus Stubs Suitable For Cables
- NEMA 1 Indoor
- ANSI 61 Grey Powder Coat
Optional upgrades
- Forced Air Cooled (AFN/AF)
- 50/60Hz
- Copper (Cu) Windings
- 80°C Rise Available
- Optional Unit-Substation or Padmount Configuration
- NEMA 2, 3R, 4, 4X & 12
- Buss Coordination with switchgear (Unit-Substation configuration)
- Dial (Analog) or Digital Thermometers
- Neutral Ground Resistors (NGR) and Monitoring
- Anti-Condensation Strip Heaters
- Switching surge mitigating R.C. Snubber
- Ground Fault Protection Relays (GFR)
- Anti-Vibration mounting to reduce transformer hum (sound level)
- Provision for Seismic mounting or complete Seismic Snubbers and Restraints
- Distribution, Intermediate or Station Class Surge Arresters
- Provision for Buss Duct Entry
- Fully Insulated Buss
- Mimic Buss
- Kirk-Key Interlock