High Voltage Transformer | Chemical Plant Explosion Proof
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.
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In a rapidly evolving market and technology landscape, we stay agile and innovative to ensure you always receive the most advanced products and solutions.
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We advocate “Live seriously, work happily.” We believe a team with a positive attitude toward life can serve you with greater creativity and passion.
High Voltage Transformer | Low Resonance Urban Grid Type
Altitude-adapted high voltage transformer with anti partial discharge design. Stable insulation performance for plateau and thin-air operation environments.
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 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:What are the reasons for excessive noise when the transformer is operating? How can the noise be reduced?
A:Reasons: Loosening of core, deformation of windings, resonance of components, failure of cooling system, influence of grid harmonics. Measures: Tighten the core clamps; Correct the position of windings; Adjust the shock absorption devices of cooling fans / oil pumps; Install soundproof covers; Address grid harmonics.
Q:What are the special selection requirements for transformers that are matched ？
A:It features low loss and low noise; the short-circuit impedance needs to match the inverter; it has strong resistance to voltage fluctuations and harmonic impacts; the transformer for photovoltaic power stations needs to adapt to significant changes in load throughout the day and night; the transformer for wind power needs to be able to withstand outdoor high-altitude and low-temperature environments, with a protection level of no less than IP54.
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