UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

NR/SP/ELP/21021

Specification for step-down 3 phase transformers and earthing resistors for power distribution in d.c. traction systems

inactive
Buy Now
Organization: NR
Publication Date: 1 December 2005
Status: inactive
Page Count: 26
scope:

This specification applies to all new step-down transformers installed on the d.c. electrified lines.

Purpose

This specification states the requirements for the design, manufacture and testing of stepdown three phase transformers and their associated earthing resistors in the range:

33/11 kV up to 10 MVA

33/22 kV up to 15 MVA

They are used for power distribution in d.c. traction systems where incoming supplies are at 33 kV and distribution to traction substations is at 11 kV or 22 kV.

The document is to be read in conjunction with the relevant procurement specification.

Document History

NR/SP/ELP/21021
December 1, 2005
Specification for step-down 3 phase transformers and earthing resistors for power distribution in d.c. traction systems
This specification applies to all new step-down transformers installed on the d.c. electrified lines. Purpose This specification states the requirements for the design, manufacture and testing of...
August 1, 1996
Step-Down 3 Phase Transformer & Earthing Resistors for Power Distribution in DC Traction Systems
This specification applies to all new step-down transformers installed on the D.C. Electrified Lines. Purpose This specification states the requirements for the design, manufacture and testing of...

References

Advertisement