Quick Details
Description
S11/S9 10kv grade oil immersed distribution transformers are widely used for power supply & distribution in industrial and civil occasions, to step down grid voltage (11, 10.5, 10, 6.3, 6KV) to line voltage 400V, which can serve both indoors and outdoors at an ambient temperature range -25℃ to 40℃. With reasonable structure design, the transformers are qualified to withstand short-circuit and overload, and are free of maintenance and easy to repair.
The transformers have S9, advanced S11 and the newest S13 series, the S11 is more recommended for the balance in less loss and reasonable price.
Product standard: IEC60076 & GB1094 and GB/T6451
Main specification:
Rated Capacity (KVA): 10~2500 KVA
Vector Group: Yyn0 or Dyn11
Impedance Voltage (%): 4%, 4.5%
Rated voltage: H. V: 11, 10.5, 10, 6.3, 6KV (or customized)
L. V.: 0.4, 0.69KV (or customized)
Tapping range: +/- 5% or +/- 2 * 2.5% (or customized)
Frequency: 50/60Hz
Number of phases: 3
Cooling method: ONAN
Temperature rise limits: Winding ≤ 65K, Top oil ≤ 60K
Standards: IEC60076 Power transformer, GB1094 Power transformer, GB/T6451 Technical data & requirement of three-phase oil immersed power transformer
Ambient conditions:
Altitude: ≤1, 000m
Highest ambient temperature: +40℃
Highest annual average temperature: +20℃
Highest monthly average temperature: +30℃
Lowest temperature: -25℃
Indoor and outdoor
S11 specification:



ZHEJIANG ACCEL TECHNOLOGY CO., LTD. is a professional and experienced company providing power & control solution worldwidely for over 15 years, predecessor as LE (LAUREATE ELECTRIC) since 2001. Our main products are customized transformers including control transformers, isolating transformers, safety isolating transformers, power supplies transformers, rectifier transformers, reactors, autotransformers, power distribution transformers and special purpose transformers for different applications; and customized enclosures for electrical equipments made of steel, stainless steel and die-casting aluminum alloy. Our products are widely used in various industries as mechanical, electrical & electronic, instruments, transportation, solar & medical system, military, energy, power supplies, petrochemical etc.
Our major advantage is the vast flexibility of our customized products; for different purposes from standard products to OEM to special customized; for various industries from food processing to advanced medical system to military industry; and for different occasions from civil house to industrial workshop to hazardous area; which come from our strong R&D engineering team, based on extendible production line and persistent spirit of innovation.
Our company aims not only to present high-quality and competitive products which to succeed us from the market; but also to provide solutions to power & control related problems occur to our clients which may distinguish us from the rivals; further on to motivate technical innovation and help create extra value, which can contribute to accel the progress of technology and society.