Tier 1 Stock Countdown

Wilson Power Solutions stopped manufacturing Tier 1 transformers but we hold stock of Wilson e1 distribution transformers, available on a 6 week lead time with some units available ex-works. All stock transformers come with the following base specification:

  • HV off load tap changer with additional tap setting (+/-2.5%, +/-5.0%, +7.5%),
  • Bottom entry HV cable box suitable for 1 x 3c cable,
  • LV cable box suitable for multiple x 1c cables depending on the rating

Tier 1 Stock Countdown

Wilson E1 range, EU Ecodesign Tier 1 compliant, liquid-filled distribution transformers with the following ratings:

Voltage ratio 11kV/415V

  • 315kVA (limited stock)
  • 500kVA
  • 1000kVA (limited stock)
  • 1250kVA
  • 1500kVA (limited stock)
  • 1600kVA (limited stock)
  • 2000kVA (limited stock)
  • 2500kVA

Voltage ratio 11-6.6kV/415V or 6.6kV/415V

  • 500kVA (limited stock)
  • 1250kVA (limited stock)

Voltage ratio 33kV/415V or 33kV/400-400V

  • 4000kVA

iDNO Unit Type (UKPN). Voltage ratio 11kV/433V

  • 800kVA
  • 1000kVA

Additional Accessories

Where you require additional accessories such as Oil Temperature Indicator (OTI), Winding Temperature Indicator (WTI), Magnetic Oil Gauge, Pressure Relief Device (PRD), or Conservator & Bucholz Relay, then lead times will extend out a little to 2 weeks depending on our production workload at the time.

If you require MV or LV Switchgear on your transformer please contact us for a lead time to confirm details.

Typical accessories

  • Oil temperature indicator (OTI)
  • Winding temperature indicator (WTI)
  • Magnetic oil level gauge (MOG)
  • Forced fan cooling
  • Marshalling box
  • Pressure relief device (PRD)
  • AVR relay and control panel
  • Bi-directional rollers
  • Radiator valves
  • Dehydrating breather

Typical applications

• Step down distribution transformers
• Step up generation transformers
• Wind farm transformers
• Solar PV farm transformers
• Motor starting transformers
• 6 Pulse and 12 Pulse rectifier transformers
• Earthing transformers
• Isolation transformers
• Korndörfer autotransformer starter

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