Three phase pad mounted transformers come in two basic configurations: Radial and Loop feed, which are selected based on the type of circuit on which the transformers will be installed. The 3 phase pad mounted transformer uses aluminum or copper winding and is optimized to maximize efficiency and footprint.

Three phase pad mounted transformers are designed and manufactured to comply with ANSI, DOE, IEEE, CSA and IEC standards. With high voltages up to 34.5kV and ratings up to 10MVA. It can be single voltage or dual voltage.

The three phase pad mounted transformer has UL/cUL, CSA, CESI, IEEE certifications. In addition, the 3-phase pad mounted transformer also has SGS, CSA and other third-party inspection reports.

Complete after-sales service and installation teams in Canada, USA, Ecuador, etc. Provide 24 hours of technology and consulting services. There are local cooperation after-sales service teams with rich experience in power engineering and timely services.

Not only produces transformers, but also provides the best solution for your power project. Such as mines, factories, renewable energy power generation (wind power, solar power and BESS, etc.) to provide the best transformer solutions.

With more than 20 years of experience in exporting transformers, the team of engineers is particularly professional and proficient in various international standards. No matter which country you are from, the team of engineers can design and produce according to your requirements and technical parameters.

A strict quality control system ensures the high quality of each transformer. There are also UL third-party inspection agencies to conduct supervision factories every three months. Therefore, you can fully trust the transformer quality. The production time of conventional power distribution transformers is 6-8 weeks.

• Three-point latching door for security
• Removable sill for easy installation
• Stainless steel cabinet hinges and mounting studs
• Bolted-on cabinet with removable sill having the following depths: 19" deep for 300kVA through 750 kVA; 22" deep for 1000kVA through 1500kVA; 24" deep for 2000 kVA through 3750kVA; 30" deep for 5000Kva through 7500kVA
• For live front construction, externally clamped high voltage porcelain bushings with a single eyebolt clamp-type connector (accommodates #6 AWG solid to 250 MCM stranded conductors)
• For dead front construction, externally clamped high voltage bushing wells for loadbreak or non-loadbreak inserts
• HV and LV compartment doors-hinged and lift-off type with 120° holding bars
• Steel HV/LV compartment barrier

• Padlocking facility with one penta-head bolt on the LV compartment door and two penta-head bolts on the HV compartment door-including 3 point latching mechanism
• HV connection: Live front-external clamped and removable HV bushings with eyebolt clamp type connector
• LV connection: Externally clamped polymer & porcelain LV bushing with 4-12 Hole spades
• Oil drain plug for 500kVA and below
• 1" drain valve with sampler for 750 kVA and above
• Oil fill plug
• Five-legged core/coil assembly
• Removable LV neutral ground strap; as required
• Nameplate per ANSI requirement
• Self-actuating pressure relief valve
• Lifting lugs (4)

• Oil level gauge, Liquid temperature gauge, Pressure vacuum gauge
• Welded cover with handhole
• Oil drain valve with or without sampler
• Mechanical pressure relief device mounted on tank cover
• Primary termination: Externally clamped bushing wells with loadbreak inserts; Integral loadbreak or non-loadbreak bushings
• Secondary termination: Externally clamped bushings with NEMA 4-hole, 6-hole, 8-hole, 10-hole or 12-hole spades (Spade supports are available for 8-hole spades and larger)
• Primary Switching LBOR oil switch: one for radial feed
• Externally operated de-energized tap changer, dual voltage switch, or A-Y switch
• 2-position loadbreak oil switches & 4-position T or V blade sectionalizing loop switches
• Over voltage Protection: Distribution class, metal oxide arresters (3-36 kV) or valve-type lightning arresters (3-27 kV)

• Over-current protection: Bayonet type expulsion fuses with plastic drip cup mounted on each bayonet, Weak link cartridge fuses, or Bayonet type in series with internal partial-range current limiting fuses
• Secondary under oil circuit breaker
• Additional construction options: Stainless steel tank and cabinet design, Partial stainless steel design, or 30" / 34" / 40" deep cabinet
• CT's or PT's, including mounting support
• LV externally mounted molded case breaker & Externally mounted kWh meter
• Flip-top cabinet for low profile design & Additional externally mounted nameplate
• Different paint color per requirement
• Weather cover: Features an optional weather cover over the cabinet which is hinged to allow clearance for replacement of bay-o-net-type fuses. It lifts easily into place and secures with a single supporting arm without additional hold down hardware.

Routing testing is performed on each transformer manufactured, including the following tests:

• Ratio, Polarity, and Phase Relation
• Resistance & Applied Potential
• Induced Potential & Loss Test
• Leak Test
• Operation tests of all devices: All electrical and electro-mechanical devices shall be operated both in auto and manual mode for proper sequencing/staging and function.