Single Phase Transformer


Single Phase Transformer
  • Rated capacity(kVA): 5, 10, 15, 25, 37, 50, 75, 100, 167, 250, 333, 500
  • Voltage: 2400V through 34500 GrdY / 19920V
  • Voltage: 120 / 240V, 240 / 480 V, 277V
  • Rise: 55°C or 65°C

Single phase pole-mounted transformers from ROOQ provide efficient power distribution for residential and light commercial applications. Our transformers feature robust construction and are designed for long-term reliability.


  • Application: Utility, Electrical wholesales, Industry,Urban and rural electrification,Public utilities,Highly polluted and hazardous conditions
  • Below an altitude of 1000m
  • Ambient temperature: Max. temperature is +40℃ and the min. temperature is -25℃
  • Outdoor wind speed shall not exceed 35m/s
  • Pollution grade: Class II
  • Note: Beyond those standards services condition, please check with sales before ordering.


  • Core and coils designed for an optimum Total Ownership Cost (TOC)
  • Wound core with step-lap joints for increased efficiency and lower noise levels
  • “Low-high-low” windings for increased short circuit strength, efficiency and thermal strength
  • Computer aided design for mechanical & electrical calculations (C.A.D.)
  • Paint system meeting or exceeding the performance of the IEEE C57.12.28 Standard
  • Lifting lugs meeting all of the requirements of the CSA C2.1-06 and CSA C2.2-06 Standard
  • Multiple cover clamps to ensure proper sealing and to mini-mize water retention on the cover edge
  • Cover or sidewall mounted high voltage bushing(s) as required
  • Low voltage spade or clamp type (basket) terminals as required
  • Provision for surge arrester bracket, bracket available as an option
  • Automatic self-resealing pressure relief valve
  • HV Bushings: cover and sidewall mounted available
  • Advance technology, rich experience
  • Highest standards of quality, reliability and durability
  • A wide range to suit every application



Highest voltage for material: 15kV
KVAVoltageVector groupLossesNo-load current (%)Impendance voltage (%)Weight (KGS)Overall dimension(mm)
H.V.(KV)Tapping rangeL.V.(V)No-load (W)Load (W)OilTotalLWH
5

7.62

±5% or ±2*2.5% 120/240

ll0 or ll6 351454.03.5 18105570540670
10552603.522130570540730
15653653.226145570540750
25905303.030165570540750
37.51207302.545190640705760
501509502.366270760740800
7520014002.080360840780865
10024016501.995440985810915
16738023801.711859510008201015
25051032801.616580511409001015
33361039501.5205101511959551015
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