Single-Phase Pad-Mount (Type 1)

Howard Power Solutions offers a complete line of pad-mounted distribution transformers that are ideal for use on any residential or commercial distribution system, all designed to satisfy the most demanding requirements for safety, reliability and aesthetics. \n\n Howard Power Solutions manufactures a complete line of transformers, all designed with increased margins of safety and reliability. Contact your distributor or factory representative for availability of other KVA sizes, voltage ratings, features, accessories and design standards not listed.

Howard Industries manufactures a complete line of transformers, all designed with increased margins of safety and reliability. Contact your distributor or factory representative for availability of other kVA sizes, voltage ratings, features, accessories and design standards not listed.

Talk to us about filling a custom order that best fits your needs.

Documents

KVA Ratings (65° Rise): 5, 10, 15, 25, 37.5, 50, 75, 100, 167, 250, 333
High-Voltage Ratings: 4160GrdY/2400 through 34500GrdY/19920
Or 2400/4160Y through 19920/34500Y (60kV through 150kV BIL)
Low-Voltage Ratings: 240/120, with 3 low-voltage bushings
120/240, with 4 low-voltage bushings
480/240, with 3 low-voltage bushings
240/480, with 4 low-voltage bushings
120, with 2 low-voltage bushings
240, with 2 low-voltage bushings
277, with 2 low-voltage bushings
480, with 2 low-voltage bushings
(30kV BIL)
Two externally clamped universal high-voltage bushing wells for loop feed operation or one externally clamped bushing well for radial feed operation
Three externally clamped low-voltage bushings with threaded copper studs, including a fully insulated neutral terminal with removable ground strap removable ground strap standard on 240/120 and 480/240 ratings only)
Embossed bushing mounts
Threaded, flush mounted stainless steel lifting provisions
Automatic pressure relief device
Electrical grade mineral oil with oxidation inhibitor
Removable hood with corrosion resistant stainless steel hinge pins and barrels
Mild steel enclosure and detachable sill fastened with stainless steel hardware
Recessed oil compartment bottom
Electrostatically applied powder paint finish with polyurethane top coat for excellent resistance to chipping, fading, abrasion, and corrosion
Front panel accessory mounting bracket
Domed top surfaces on hood and oil compartment to prevent water retention
Oil fill/oil level plug
Oil drain plug
Tank grounding provisions
Corrosion resistant locking assembly with captive penta-head security bolt, floating nut and padlock provision
Decal or stenciled bushing designations
Laser engraved anodized aluminum nameplate
Meets or exceeds current ANSI, NEMA, RUS, and DOE standards as applicable
Full compliance with IEEE C57.12.28 enclosure integrity standards
Total stainless steel or hybrid (mild steel/ stainless steel) enclosure; hybrid enclosure may have stainless steel applied to any of the following components: hood, sill, oil-compartment riser, bottom/front panel, and high-voltage bushing clamps. Available grades of stainless steel include 409, 304 and 304L
Temporary service access provision (conduit hole)
High-voltage, load break on/off or sectionalizing switch
Fault indicator or Fault indicator provision only
Load break high-voltage bushing inserts
Removable low-voltage ground strap (standard for 240/120 and 480/240 ratings)
Low-voltage terminals, including various screw-on spades or slip-fit connectors
Internally mounted expulsion fuse (alone or in combination with internally mounted, partial-range current limiting fuse)
Draw-out expulsion fuse in combination with internally mounted partial-range current limiting fuse or isolation link
Draw-out (dry well) full-range current limiting fuse
Drip shield for use with draw-out expulsion fuse
Internally mounted full-range current limiting fuse
Low-voltage circuit breaker with or without emergency overload lever
MOV high-voltage lightning arrester: external plug-in elbow type, or under-oil mounted with or without external disconnect
High-voltage tap switch with operating handle in the terminating compartment with one of the following tap ranges:
• Four 2.5% taps above normal
• Four 2.5% taps below normal
• Two 2.5% taps above and two 2.5% taps below normal
• Taps at 13800/13200/12870/12540 for transformers with a nominal high-voltage rating of 14400 (high-voltage taps may not be available in combination with dual high-voltage ratings)
Dual high-voltage switch with operating handle in the terminating compartment (may not be available in combination with high-voltage tap switch)
Interlaced low-voltage windings
Amorphous Metal Core
Drain valve with or without sampling device
Temperature gauge
Liquid level gauge
Pressure/vacuum gauge
Tank ground connectors
Hold-down cleats
Lifting bolts
Custom stenciling and labeling
Laser engraved stainless steel nameplate
NEMA safety labels
Ester-based dielectric fluid
Canadian Standards Association (CSA) design standards and other non-U.S. standards
Hi-Lift hood
HV Bushing Wells with removable stud
Internal Fault Detector (IFD)