Power Transformer ABB 500KVA 33.0/415KV 

GZ Industrial Supplies is the supplier and distributor of ABB brand of Power Transformer in Nigeria. Our Power Transformer ABB 500KVA 33.0/415KV is part of a complete range of copper distribution transformers designed to grant the reliability, durability, and efficiency required in utility, industrial, and commercial applications. This distribution transformers are designed and manufactured to the highest quality standards to ensure enduring reliability, a characteristic necessary to foster peace of mind amongst customers and consumers.

Technical Specifications of Power Transformer ABB 500KVA 33.0/415KV

• Product Name: Liquid-Filled Groundmount Transformer; 3PH, 500 kVA, HV 33000D , LV 415yn
• Rated Power 500[kVA] 
• Insulation Liquid: Mineral Oil
• High Voltage: 33000[V] 
• High Voltage tappings (DETC): +2 -2 2.5%
• Low Voltage at no Load: 415[V] 
• Number of phases 3
• Vector Group: Dyn11
• Ambient temperature max./monthly/annual average: °C 40 / / 20
• Max. average temperature rise (Oil/Winding): 60 / 65[C/C] 
• Location Indoor/Outdoor
• Rate Voltage: 33-0,415KV
• Frequency: 50[Hz] 
• Impedance: 4(+-10%)[%] 
• No Load Losses: 1350(+15%)[W] 
• Load Losses at 75 °C: 7200(+15%)[W] 
• Standards: IEC 60076
• Total Weight: 1500[kg] 
• Cooling: ONAN

Frequently Asked Questions

1. What is the difference between a power transformer and an instrument transformer?

A power transformer is primarily used in power transmission and distribution to either step up or step down a voltage level. While an instrument transformer is used in a circuit for the measurement of voltage or current.

2. Can transformers be operated at voltages other than the prescribed voltages?

Transformers can sometimes be used at voltages that are lower than the rated voltage. However the voltage rating of a transformer should NEVER be exceeded unless taps are provided for this reason. Note, when operating below the rated voltage the KVA capacity is reduced correspondingly.

3. What is meant by impedance in transformers?

Impedance is the transformer's ability to restrict current and is expressed in percentage.

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