500kVA 33/11kV transformer on-site installation in Kenya
The following is a case study of TSTY's on-site installation technology for a 500kVA 33/11kV transformer designed for an industrial park in Kenya.
Project Overview
Project Name: Power Distribution System Expansion for a Small Textile Mill in Kenya
Background: The original 10kV line was insufficient, and an upgrade to 33kV was required to support the addition of new dyeing equipment.
Core Equipment: 500kVA 33/11kV Dyn11 oil-immersed transformer (outdoor installation)
Transformer technical parameters
|
Item |
Parameters |
Design basis |
|
Rated capacity |
500kVA |
New load 380kW +25% redundancy |
|
Voltage ratio |
33kV ±2×2.5% / 11kV |
Compatible with KPLC power grid fluctuation range (±10%) |
|
Winding connection group |
Dyn11 |
Suppresses third harmonics and allows neutral point grounding |
|
Cooling method |
ONAN |
Natural cooling in tropical climates |
|
Impedance voltage |
4.5% |
Limit the short-circuit current on the 11kV side to ≤8kA |
|
BIL insulation level |
HV: 170kV / LV: 75kV |
Requirements for anti-salt spray corrosion in coastal areas |
|
Protection level |
IP55 |
Dust and water resistant (monsoon season) |
TSTY Designs Transformers for African Power Systems
Africa's power systems have distinct regional characteristics, manifested in fragmented grid structures, poor power quality, and extreme climates.
TSTY designed transformers tailored to these regional characteristics to address challenges such as environmental adaptability, grid fragility, and operational and maintenance limitations.
TSTY Electric's professional technical team is working closely with local African experts to overcome numerous challenges, strictly adhering to international standards and specifications to ensure smooth installation and commissioning of the transformers. From equipment transportation to on-site installation, every step demonstrates TSTY Electric's professionalism and meticulous work ethic.
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