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This recommendation applies to heat-treated aluminium alloy busbar material of the AL-Mg-Si type.
PURPOSE AND SCOPE PS(T)010 states that when a Numeric Busbar Protection is out of service for unacceptable period of time a contingency plan shall be applied. UKBP/TP162 details how to implement the above policy. This report is assessing the risks of adopting a Numeric Protection System...
PURPOSE AND SCOPE The purpose of this document is to describe the behaviour of REB 500, 7SS522 & DRS BB numeric busbar protections when the isolator DBI condition occurs. The report also gives guidance as to what needs to be done following the DBI occurrence.
PURPOSE The purpose of this document is to give guidance on the selection of the Direct or Selective Remote Tripping Links to Intertrip the remote ends of feeders from busbar protection and interlocked current trip relays.
This specification, in conjunction with related functional specifications, details the protection, control and measurements functions and the associated interconnectivity which are required within light current systems on transformer bays at double Busbar substations on National Grid's 400,...
PURPOSE The purpose of this procedure is to provide a model process for the checks and tests to be performed on a double busbar substation synchronising scheme, when an additional feeder circuit is installed. These are required to ensure that: • Appropriate checks and tests have been...
This standard is applicable to moulded indoor busbar bushings for rated voltages up to 1000 V, rated currents from 1250 A up to 5000 A and frequencies from 15 Hz up to 60 Hz for insulating liquid filled transformers.
PURPOSE AND SCOPE This technical guidance note provides model calculations on the use Eurocodes for the design of substation structures using TS 3.01.04 Issue 3 Busbar systems for AIS Substations. The model calculations are there for guidance only and should be used by professionally...
Inclusions This module applies to the design of electrical circuits associated with: a) electro-mechanical signalling systems; b) electro-pneumatic signalling systems; c) relay based signalling systems; and d) electronic signalling systems. It applies to both internal and external circuits,...
This part of IEC 60092 specifies requirements for all electric propulsion plants and gives the specifications, system design, installation and testing of at least: - generators and their prime movers; - switchboards; - transformers/reactor
This part of IEC 60092 specifies requirements for all electric propulsion plants and gives the specifications, system design, installation and testing of at least: - generators and their prime movers; - switchboards; - transformers/reactor
This specification applies to all new DCDS's installed on the D.C. Electrified Lines. Purpose This specification states the requirements for the design, manufacture and testing of 650/750 V rated d.c. disconnector switches (DCDS) for use in d.c. traction substations for fault making...
The purpose of this procedure is to specify the arrangements for the primary and secondary injection of an additional circuit of busbar protection, for a High Impedance circulating current scheme with a single (duplicated) relay per zone. Informative: Such installations are typically in...
Applicability This manual covers the design and maintenance of the Network Rail DC Electrification system:- • That part of Network Rail's 750V third rail electrification system that lies between the outgoing terminal of the substation DC circuit breakers and the point of delivery of...
This Instruction describes the inspection and maintenance to be carried out on ASEA Minimum Oil Circuit Breakers, type HKSJ 600 Amp and HKSJB 800 Amp including associated Busbar and Circuit Chambers. Purpose This Instruction details the periodicity and the necessary inspection and...
IEC 61439-6:2012 lays down the definitions and states the service conditions, construction requirements, technical characteristics and verification requirements for low voltage BTS (see 3.101) as follows: - BTS for which the rated voltage does not exceed 1 000 V in case of a.c. or 1 500 V in case...
PURPOSE The purpose of this Design Handbook is to supplement the existing Technical Specifications and Protection Application & Setting Policy for LVAC supplies. This includes supplies from DNO, Tertiary, Auxiliary/Earthing Transformers, Power Stations and Diesel Generators. Where a Tertiary...
