Product Introduction

This 500 KVA power distribution transformer was delivered to Botswana in 2016.The rated power of the transformer is 500 KVA. This 500 KVA step down transformer with 3 phase, and the primary voltage is 11KV, the secondary voltage is 0.4KV, the transformer is equipped with no load tap changer, the tapping range is ±2*2.5% at primary side, the cooling is ONAN, the connect group is Dyn11, our 500 KVA power transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.

SCOTECH ensure each one of our delivered transformers had passed the full acceptance test and we remains 0 fault rate record for more than 10 years so far, oil immersed power transformer is designed in accordance with IEC, ANSI and other major international standards.

Scope of Supply

Product: Oil Immersed distribution Transformer

Rated Power: Up to 5000 KVA

Primary Voltage: Up to 35 KV

Technical Specification

500 KVA transformer specifications type and data sheet

500 KVA 11/0.4KV Transformer Oil Tank

Introduction of oil tank：

Corrugated oil tank uses the "corrugated sheet folding machine" in the corrugated production line to automatically fold the specification of cold-rolled steel coil into the sheet type required by the design drawing, including the corrugated height, pitch, corrugated sheet, straight edge length and total length and width of corrugated sheet. The folding quality is good and the speed is fast; the corrugated sheet is welded after folding to complete the folding end seam and reinforced iron welding. The welding adopts argon arc welding, with stable welding arc, large weld penetration, good forming, and no defects. The corrugated oil tank has a bottom, a box edge, and a rectangular mailbox made of corrugated sheets. The corrugated sheet is made of folded sheet. In addition to good heat dissipation performance, the corrugated fin has the function of expansion to relieve the internal pressure rise.

Finished 500 KVA 11/0.4KV Transformer

Inspection of distribution transformer before operation：

1. Check the transformer certificate; if the certificate exceeds two months, the insulation resistance should be retested.

2. Check the oil level and breathing hole; there should be no oil leakage, oil leakage and good ventilation.

3. Check whether the high and low voltage insulation bushing and relevant lead wires are intact, and whether the screws are loose.

4. Whether the position of the voltage regulating switch is correct and whether the high and low voltage fuses are suitable.

5. Lightning protection shall be complete and grounding resistance shall be measured to be qualified.

6. There should be no abnormal phenomena in cables and busbars.

Packing and Delivery

FAQ

1. What standard do you follow?

IEC 60076 standard, and all other major international standard such as ANSI, CSA, UL, etc.

2. What package do you have for transformers?

Standard package with welded iron frame packed with ply wood boxes.

3. How long can I receive my transformers?

The shipping time from our port (shanghai or Ningbo) to your port is range from one week to one month, depend on the distance.