Power Transformer 100KVA 11.0/415KV Astor

Power Transformer 100KVA 11.0/415KV 

GZ Industrial Supplies is the supplier and distributor of Astor brand of Power Transformers in Nigeria. This Power Transformer Astor 100KVA 33KV/415V is a one kind of transformer, that is used to transfer electrical energy in any part of the electrical or electronic circuit between the generator and the distribution primary circuits. We have a complete range of copper distribution transformers designed to grant the reliability, durability, and efficiency required in utility, industrial, and commercial applications.

Our 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. It is used for indoor or outdoor applications and can be provided with off-load and on-load tap changers.

Technical Specifications of Power Transformer 100KVA 11.0/415KV 

• Product name Liquid-Filled Groundmount Transformer; 3PH, 100 kVA, HV 11000D , LV 415yn
• Rated Power: 100[kVA] 
• Insulation Liquid Mineral Oil
• High Voltage: 11000[V] 
• High Voltage tappings (DETC) +2 -2 2.5%
• Low Voltage at no load: 415 [V] 
• High Voltage insulation level [kV] LI 170 / AC 70 / Um 36
• Low Voltage insulation level [kV] LI - / AC 3 / Um 1.1
• Frequency: 50[Hz] 
• Number of Phases: 3
• Vector Group: Dyn11
• Ambient temperature max./monthly/annual average °C 40 / / 20
• Max. average temperature rise (Oil/Winding) [C/C] 60 / 65
• Surface treatment Painted, RAL 7033 Altitude (a.s.l.) [m] <1000
• Location Indoor/Outdoor

Frequently Asked Questions 

1. Why is the transformer used in kVA?

Transformers are used and rated in kVA, to account for power losses. The total heat losses in a transformer depends on volt-ampere (VA) only and not on the power factor of the load. That is why the transformer rating is given in kVA and not in kW.

2. How much is 1 kVA in Watts?

1 kVA is equal to 1 kW. That means that 1 kVA is equal to 1,000 watts. So to determine your transformers rating in watts, multiply the transformer's kVA power rating by 1000.

3. Why do transformers hum?

The repetitive expansion and contraction of the steel core inside the transformer is what causes transformer hum or noise. The expansion of the core depends on the amount of flux passing through it, which in turn depends on the applied voltage and the number of turns of transformer coils.

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