NR - RT/E/S/21021 ISSUE 1
Step-Down 3 Phase Transformer & Earthing Resistors for Power Distribution in DC Traction Systems
inactive
| Organization: | NR |
| Publication Date: | 1 August 1996 |
| Status: | inactive |
| Page Count: | 32 |
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 step-down 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
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...
RT/E/S/21021 ISSUE 1
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
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