Pad Mounted Power Transformer | Integrated Compact Power Transformer
Apex Electrics, founded in 2007, has grown into one of China’s leading transformer manufacturers integrating R&D, production, and quality management. We hold multiple invention, utility model, and design patents, enabling us to offer OEM, ODM, and customized solutions for global clients.
Apex Technologies firmly believes that trust and professionalism are the foundation of successful partnerships. We empower our clients with strong support to help them win more projects and orders.
Embrace Change
In a rapidly evolving market and technology landscape, we stay agile and innovative to ensure you always receive the most advanced products and solutions.
Competitive Pricing
We offer highly competitive prices while ensuring the highest product quality.
Short Lead Time
Customer satisfaction is our top priority. For urgent orders, we can shorten the production cycle to meet your delivery requirements.
Sealed Type Power Transformer | Fully Enclosed Weatherproof Transformer
Special power transformer for photovoltaic power station grid connection. Anti-interference performance stable, match new energy power generation parameters.
Frequently Asked Questions (FAQ)
Q:What are the criteria for determining when to replace an old transformer?
A:The load rate has consistently exceeded 80% and there have been frequent overloads; the losses under no-load and at full load are more than 20% above the standard; insulation has aged (with excessive dielectric loss values and deteriorated oil quality); serious faults have occurred (such as winding deformation and multiple-point grounding of the core); the energy efficiency grade is lower than level 3 and energy-saving renovations are not economically viable; it has reached the design service life (generally 20–30 years).
Q:What are the handling methods for oil leakage in the high-voltage bushing of a transformer?
A:Minor leakage: Tighten the flange bolts of the casing and replace the sealing gasket; Severe leakage: Replace the casing after power outage; If the insulation inside the casing gets damp, conduct an insulation test and replace the casing if necessary.
Q:What are the reasons for the three-phase voltage imbalance in the transformer?
A:The positions of the transfer switch are inconsistent; there is a short circuit between the windings (in a certain phase); the three-phase load is severely unbalanced; the system voltage is unbalanced across the three phases.
Q:Why are dry-type transformers preferred for power distribution in high-rise buildings?
A:Dry-type transformers are oil-free and do not have the risks of oil leakage or explosion. They have high fire safety. The volume is relatively small, making them easy to install in the distribution rooms of buildings. The maintenance is simple and they meet the fire protection and space requirements of high-rise buildings.
EN
