Zhejiang Farady Electric Co., Ltd. produces single phase overhead transformers that can be used alone or in banks of three for single or three phase loads. They meet various international standards and are suitable for indoor or outdoor use in temperatures from -25C to 40C, with humidity up to 95% monthly and 90% daily. The transformers come in kVA ratings from 3 to 167 kVA and various primary and secondary voltage configurations. They provide dimensions and weights for sample transformers of different ratings.

1. Single Phase Overhead Transformer
Product Brochure
2009/4
Zhejiang Farady Electric Co., Ltd.
ISO9001&ISO14001 certificated enterprise

2. Single Phase Overhead Transformer
Product overview
++++Application
The Farady overhead transformer may be used alone for the supply of a single phase load or as one of three
units in a bank for the supply of a three phase load. The unit may be direct mounted to a wooden or concrete pole,
or cluster mounted on a pole for three phase use. Our single phase overhead distribution transformer is
commonly used in various places including rural areas, remote regions and scattered villages to provide high
quality power supply for daily lighting, agricultural production and industrial plants. Aside from these, it is also
suitable for the energy saving projects for railway and urban grid.
++++Standards
IEEE Std C57.12.00™-2000 standard – IEEE Standard for Standard General Requirements for
Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE Std C57.12.20™-2005 standard – IEEE Standard for Overhead-Type Distribution Transformers, 500kVA
and Smaller: High Voltage, 34500V and Below; Low Voltage, 7970/13800Y V and below
IEEE Std C57.12.31™-2010 standard – IEEE Standard for Pole Mounted Equipment – Enclosure Integrity
IEEE Std C57.12.35™-1996 standard – IEEE Standard for Bar Coding for Distribution Transformers
IEEE Std C57.12.90™-2006 standard – IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and
Regulating Transformers
IEEE Std C57.12.91™-2001 standard – IEEE Guide for Loading Mineral-Oil-Immersed Transformers
IEEE Std C57.154™-2012 standard (Pending Approval)– IEEE Standard for the Design, Testing and Application
of Liquid-Immersed Distribution, Power and Regulated Transformers using High-Temperature
Insulation Systems and Operating at Elevated Temperatures
(ASTM)American Society for Testing Materials
NEMA TR 1-1993 (R2000) – Transformers, Regulators and Reactors, Table 0-2 Audible Sound Levels
10 CFR Part 431 – Department of Energy – Energy Conservation Program for Commercial Equipment:
Distribution Transformers Energy Conservation Standards; Final Rule
++++Service condition
a) Suitable for both indoor or outdoor
b)Air temperature: Maximum temperature: +40℃; Minimum temperature:-25℃
c) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
d) Altitude above sea level: Maximum installation altitude: 2000m.
e) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
f) No frequent violent shake
Note: * Beyond those services condition should enquiry to manufacturer technical dept during order

3. Single Phase Overhead Transformer
Rating Details
General technical information is listed below:
Information on less common requirements can be obtained through Farady sale department
-kVA: 3kVA through 167kVA
-Temperature rise : 65℃
-Cooling type: ONAN
-Working Frequency: 50/60Hz
-Polarity: additive or Subtractive
-Core type : CRGO or Amorphous
-Protection: CSP or not
Primary voltage Secondary voltage
Rating(V) BIL(kV)
120V/240V
240/480V
139/277V
250/500V
4160-4800 75
7200-12470 95
13200-14400 125
19920-22900 150
34500 200
Product structure

4. Single Phase Overhead Transformer
Outline dimensions
Table 1: 7620 V-13200Y V
Rated Capacity
(kVA)
Weight(kgs)
A B C D Oil weight Total weight
3 760 430 530 330 20 105
5 780 430 530 330 30 110
10 830 430 530 330 30 130
15 850 480 580 380 40 185
25 880 500 580 410 45 210
37.5 930 560 640 460 60 300
50 980 560 640 460 70 335
75 980 680 720 554 103 460
100 1020 780 800 610 123 530
167 1050 830 890 660 155 670
Table 2: 19920 V- 34500Y V
Rated Capacity
(kVA)
Weight(kgs)
A B C D Oil weight Total weight
10 950 480 570 360 35 180
15 950 530 620 410 48 200
25 950 550 620 440 52 250
37.5 1000 610 680 460 65 350
50 1050 610 680 460 75 370
75 1100 730 760 490 115 500
100 1150 830 840 610 130 580
167 1180 880 940 660 165 720

5. Single Phase Overhead Transformer
ZHEJIANG FARADY ELECTRIC CO.,LTD
Copyright 2014 Farady Electric
TEL:0086-577-61722510/61777258
Fax:0086-577-61777257
Http://www.farady.cn
http://www.distribution-transformer.com
http://www.farady-electric.com
Email:info@farady.cn