For HENGFENGYOU ELECTRIC, a 1600 kVA transformer can be customized into various structural designs depending on the specific installation environment. While they share the same electromagnetic principles, their distinct structures fulfill different application needs.

• 1600 kVA Three-Phase Oil Immersed Transformer: Rated voltage ranges from 6 kV to 35 kV. Ideal for outdoor grids and industrial plants requiring high overload tolerance.

• 1600 kVA Epoxy Resin Dry-Type Transformer: Rated voltage ranges from 6 kV to 35 kV. Excellent fire-retardant performance, perfect for indoor commercial basements, hospitals, and high-rise buildings.

• 1600 kVA Three-Phase Pad Mounted Transformer: Rated voltage ranges from 2.4 kV to 34.5 kV. Widely used in North American style urban distribution and residential areas.

• 1600 kVA Isolation Transformer: Rated voltage options include 120V, 127V, 208V, 220V, 380V, 400V, and 600V. Used for decoupling power grids and protecting sensitive equipment.

• Global Standards Compliance: Strictly manufactured according to GB, IEC, GOST, EN, NF, and ANSI/IEEE standards (fully customizable based on regional utility requirements).

• International Certifications: Fully certified by ISO, CE, IEC, SABS, COC, CSA, and UL.

• High Operational Efficiency: The efficiency of our 1600 kVA transformer exceeds 99%, fully complying with the European 2015/2014/548/EC Ecodesign Tier 2 energy efficiency regulations.

• Maintenance-Free Design: Features up to IP65 protection level. Completely dustproof and moisture-proof, designed for a reliable service life of over 25 years.

• Environmental Sustainability: Optional biodegradable FR3 vegetable oil is available to minimize carbon footprint and environmental hazards.

• Robust Overload Capacity: Engineered with premium copper coils, allowing a short-term overload of up to 150% of the rated capacity for up to 2 hours (requires monitoring of top oil temperature to ensure it remains ≤ 95°C).

Transformer pricing varies based on raw material fluctuations (copper/aluminum, silicon steel sheets) and customized technical parameters (winding material, losses level, protection accessories).

Click here to request the latest price of 1600 kVA Three-Phase Oil Immersed Transformer.

Click here to request the latest price of 1600 kVA Three-Phase Epoxy Resin Dry-Type Transformer.

Click here to request the latest price of 1600 kVA Three-Phase Pad Mounted Transformer.

Click here to request the latest price of 1600 kVA Three-Phase Isolation Transformer.

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Q1: What are the typical application scenarios of 1600 kVA three-phase oil immersed transformers?

• Power distribution networks for small and medium-sized factories.

• Main electricity supply for commercial buildings, data centers, hospitals, or large schools.

• Voltage conversion in rural grids or public residential distribution systems.

• Heavy-duty power supply for temporary construction sites and infrastructure projects.

Q2: What are the common configurations for its rated input/output voltage?

• High Voltage (HV) Side: 10 kV, 11 kV, 22 kV, 33 kV, or 35 kV (customized according to local grid standards).

• Low Voltage (LV) Side: 400 V / 415 V (Three-phase four-wire system: line voltage 400 V, phase voltage 230 V).

Q3: How do you calculate the rated current of a 1600 kVA transformer?

Assuming a voltage configuration of 10 kV / 0.4 kV, the formulas are as follows:

• High Voltage Side (10 kV): I = 1600 kVA / (10 kV × √3) = 92.38 A

• Low Voltage Side (0.4 kV): I = 1600 kVA / (0.4 kV × √3) = 2309.4 A

Q4: What environmental conditions are required for installation?

• Excellent ventilation, keeping the unit completely clear of flammable, explosive, or highly corrosive materials.

• The civil foundation platform must be completely level and structurally verified for load-bearing capacity.

• Adequate heat dissipation clearance must be reserved (a side distance of ≥ 0.8 meters from walls and no obstruction at the top).

• Outdoor installations require appropriate rain covers, oil retention pits, and safety fences.

Q5: What is the exact overload capacity of this transformer?

• Short-term emergency overload can reach 150% load for up to 2 hours (applicable to copper winding models).

• Continuous long-term overload must be strictly avoided, as it accelerates insulation aging and significantly shortens the equipment lifespan.

Q6: What are the key points to address during routine daily maintenance?

• Oil Level Inspection: Ensure the oil level on the conservator gauge remains within the normal ambient temperature marks.

• Temperature Monitoring: Under normal operation conditions, the top oil temperature should preferably remain ≤ 65°C (maximum threshold ≤ 95°C).

• Leakage Inspection: Frequently check for any trace of oil seepage around the tank welds, valves, and bushing gaskets.

• Periodic Testing: Conduct insulation oil dielectric strength tests and winding DC resistance measurements at least once a year.

Q7: How do you determine whether the transformer insulation oil needs replacement or filtering?

• Breakdown Voltage: Drops below 30 kV (New oil benchmark must be ≥ 35 kV or ≥ 50 kV depending on voltage class).

• Acid Value: Exceeds 0.1 mg KOH/g.

• Moisture Content: Exceeds 20 ppm.

• Physical Appearance: The oil color turns dark black or shows visible carbon particles.

Q8: What are the possible causes and solutions for abnormal temperature rise?

• Causes: Continuous overloading, blocked cooling radiators, internal winding short circuits, or core faults.

• Solutions: Immediately reduce or optimize the load. Clean the radiator fins or repair the cooling fans. If internal faults are suspected, isolate the unit immediately for internal diagnostics.

Q9: What protection devices must be configured for a 1600 kVA transformer?

• HV Side Protection: Drop-out fuses or vacuum circuit breakers equipped with overcurrent and short-circuit relays.

• LV Side Protection: Air circuit breakers (ACB) or molded case circuit breakers (MCCB).

• Transformer Body Protection: Buchholz relay (for gas/fault detection), pressure relief valve, and multi-node oil temperature indicator.

• System Protection: Surge arresters on both HV and LV terminals, and a solid grounding device (grounding resistance must be ≤ 4 Ω).