Three Phase Padmount Transformers

RMPAC Electricals padmount transformers are constructed of the highest quality materials and built in the US to heavy duty industrial standards. Our padmounts are built and tested in accordance with industry standards (NEMA, ANSI, DOE, and IEEE as applicable). RMPAC padmounts are ideal for commercial and industrial applications such as data centers, solar step-up, utility projects, manufacturing facilities, shopping centers, etc.

RMPAC has the manufacturing ability to produce almost any custom design, we also stock all standard configurations. With thousands of new and reconditioned units in stock and ready-to-ship, RMPAC is ready to meet your transformer needs.

DESIGN

HV Bushing Config:

1. Dead front or live front

2. Loop feed or radial feed

Standard Gauge/Accessory Package:

1. Pressure relief valve
2. Pressure vacuum gauge
3. Liquid temp & level gauges

4. Drain & sample valve
5. Adjustment taps

Switch Options:

1. 2 Position LBOR Switch
2. 4 Position LBOR Switch (V-blade or T-blade)

3. (3) 2 Position LBOR Switches

Fusing Options:

Bayonets w/ isolation links or CLFs

Construction:

1. 5-legged core
2. Rectangular wound copper or aluminum windings

3. Carbon reinforced or stainless steel tank
4. Steel divider between HV and LV cabinets
5. Penta-head captive bolt

Optional Design Features & Accessories:

1. Gauges w/ Contacts
2. External drain and sample valve

3. Electrostatic Shielding
4. K-Factor Design
5. Step-up Design
6. Surge-Arresters

Capabilities

Standard Specs

Type II non-PCB mineral oil (ONAN)
High-grade silicon-steel core
Aluminum windings
Pad-lockable door handle
No-load tap changer
Impedance 5.75 % (±7.5%)
Reinforced carbon steel tank
Lifting lugs
Externally clamped high- and low-voltage bushings
Pressure relief valve
Pressure vacuum gauge
Liquid temp gauge
Liquid level gauge
Drain and sample valve
Schrader valve
Ground pads/lugs
Nitrogen blanket
65 degree C rise

Optional Features

Environmentally friendly, high fire-point FR3 oil (KNAN)
Copper windings
Key interlock provisions
Stainless steel tank
Gauges with contacts
Externally accessible drain and sample valve
External gauge package
Lid-mounted pressure relief device
Sudden pressure relay
Lightning arresters
Viewing windows in cabinet
55/65 degree C rise
Step-up solar and wind duty design
Electrostatic shielding
K-rated design

Three Phase Padmount Transformers