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Summary of Work - STP Module 4:  Substations

1997/98

Summary of Year 1 (1997/98) Deliverables

Project:

S0401 - Critical review of condition-based maintenance practices for distribution substation plant including assessment of their added value

Deliverable:

Review of present practices and emerging techniques in condition-based maintenance for substation plant

Deliverable:

Report on parameters flow diagram, data availability, and results from outline spreadsheet

Deliverable:

Working copy of spreadsheet (no maintenance included)

Deliverable:

Report on stage 3 to include user instructions for spreadsheet

 

 

Project:

S0402 - Identification of gaps in condition monitoring of distribution substation plant and of techniques that might be exploited to fill these gaps

Deliverable:

Report identifying gaps in application of condition monitoring techniques

Deliverable:

Report on analysis of existing techniques that might fill gaps and identification of techniques worthy of further development

Deliverable:

Report on proposals for developing existing techniques and identification of fundamental principles that might be exploited

 

 

Project:

S0405 - Novel approaches to substation earthing to address the problem of theft of materials

Deliverable:

Draft report for Module 4 Steering Group meeting 26 June 1997

Deliverable:

Final report presenting cost benefit analysis of possible options

 

 

Project:

S0407 - Support asset management strategies by identifying critical data requirements from failure and maintenance activities

Deliverable:

Draft report to STP Module 4 Steering Group meeting

Deliverable:

Final report of specification of data requirements and techniques for data recording

 

 

Project:

S0408 - Electronically controlled acoustic shadows (ex R2970)

Deliverable:

Multichannel adaptive controller

Deliverable:

Final report

 

 

Project:

S0409 - Investigation of materials in older bulk oil distribution switchgear

Deliverable:

Identification of switchgear to be examined and defined programme of work

 

 

Project:

S0411 - Cause and effect of Phosphorus and manganese deposits on insulating bushing surfaces in bulk oil switchgear

Deliverable:

Report on the extent of the problem

Deliverable:

Report on mechanisms for particle formation and effect on switchgear

 

 

Project:

S0414 - RCM study of a distribution substation

Deliverable:

RCM study by Northern Electric

Deliverable:

RCM study by Seeboard

Deliverable:

RCM2 training for STP module 4 participants

Deliverable:

Presentation and supply of RCM study data to STP module 4 participants

Deliverable:

Report by Mutual Consultants of comparison of RCM studies

 

 

Project:

S0415 - Short overview study of techniques being used to assess maintenance policy

Deliverable:

Report detailing terminology, approaches, goals, strengths and weaknesses and forms of output for the techniques

 

 

Project:

S0416 - Creation of a database of known plant defects

Deliverable:

Populated database of pooled plant defect information

 

 

Project:

S0418 - Scoping study of novel 'Ultra-reliable' substation designs

Deliverable:

Report of literature search and information from manufacturers

Deliverable:

Report of outcome of 'Think Tank' studies

 

 

Project:

S0419 - Non-invasive detection of sludging oil in switchgear

Deliverable:

Report summarising practical results of trials

Deliverable:

Produce prototype field test kits

 

 

Project:

S0420 - Study of the degradation of switchgear oil in service

Deliverable:

An understanding of the significance of key parameters in the degradation of oil in distribution switchgear

1998/99

Summary of Year 2 (1998/99) Deliverables

Project:

S0409 - Investigation of materials in older bulk oil distribution switchgear

Deliverable:

Detailed history of switches with plan for critical examinations in the field

 

 

Project:

S0418 - Scoping study of novel 'Ultra-reliable' substation designs

Deliverable:

Report of outcome of fundamental studies and proposals for stage 3

 

 

Project:

S0420 - Study of the degradation of switchgear oil in service

Deliverable:

Information to enable an analytical fingerprint of oil to estimate remaining lifetime

Deliverable:

The basis for development and implementation of more appropriate oxidation stability tests to be applied to before use

 

 

Project:

S0423 - Degradation of oil in switchgear non invasive detection

Deliverable:

Report with substantial field evidence to assist with the introduction of condition bases maintenance and assessment of complementary non invasive testing procedure

 

 

Project:

S0425 - Module 4 administration

Deliverable:

Module 4 administration

 

 

Project:

S0426 - A survey of design and material failures in switchgear

Deliverable:

Report identifying design criteria and suitable materials to ensure acceptable 11kV switchgear performance

 

 

Project:

S0427 - Investigation of further applications of gas sampling as a non-invasive condition assessment technique

Deliverable:

Report summarising the results and evaluating the practical viability of specific detection systems for field use

 

 

Project:

S0428 - Review of paint systems and specifications for new plant

Deliverable:

Report detailing the available types of paint systems, expected performance and relevant environmental factors

 

 

Project:

S0429 - Testing of SF6 quality

Deliverable:

Report of requirements for testing SF6 quality and assessment of test methods and criteria

 

 

Project:

S0431 - Investigation of general issued related to oil sludging in 11kV switchgear

Deliverable:

Report summarising results

 

 

Project:

S0432 - A miniaturised chemical measurement system for non-invasive detection of switchgear oil degradation

Deliverable:

Report on literature survey and findings so far (1st year transfer report)

Deliverable:

A suitable single-use planar unit incorporating selected reagent chemistries

Deliverable:

2nd year report

Deliverable:

A research prototype measurement system

Deliverable:

A device that could form the basis of a hand-held, multi-component gas analyser for assessing the condition of electrical switchgear by analysis of the oil-headspace gases

Deliverable:

PhD thesis

 

 

Project:

S0434 - Estimating asset condition using Markov models

Deliverable:

Report of assessment of Markov Model using real data

 

 

Project:

S0435 - Sampling of distribution network assets

Deliverable:

Report of assessment of statistical techniques using real data

1999/2000

Summary of Year 3 (1999/2000) Deliverables

Project:

S0418 - Scoping study of novel 'Ultra-reliable' substation designs

Deliverable:

Report of literature search and information from manufacturers

Deliverable:

Report of outcome of 'Think Tank' studies

 

 

Project:

S0428 - Review of paint systems and specifications for new plant

Deliverable:

Report detailing the available types of paint systems, expected performance and relevant environmental factors

 

 

Project:

S0429 - Testing of SF6 quality

Deliverable:

Report of requirements for testing SF6 quality and assessment of test methods and criteria

 

 

Project:

S0431 - Investigation of general issues related to oil sludging in 11kV switchgear

Deliverable:

Report summarising results

 

 

Project:

S0432 - A miniaturised chemical measurement system for non-invasive detection of switchgear oil degradation

 

 

Project:

S0434 - Estimating asset condition using Markov models

Deliverable:

Report on assessment of Markov Model using real data

 

 

Project:

S0435 - Sampling of distribution network assets

Deliverable:

Report on assessment of statistical techniques using real data

 

 

Project:

S0437 - 1 day discussion meeting - degradation of 11kV oil filled switchgear

Deliverable:

Summary report highlighting main conclusions and implications

 

 

Project:

S0438 - Pad mounted distribution substations

Deliverable:

Final report outlining the important issues concerning pad mounted substations and their application

 

 

Project:

S0439 - Investigation of gasket materials for use with 11kV oil filled switchgear and other high voltage equipment

 

 

Project:

S0441 - Test method and pass criteria for insulation within 11kV oil filled switchgear

Deliverable:

Report on findings

 

 

Project:

S0444 - Development of a colorimetric indicator for the detection of discharge activity in air filled switchgear chambers with polymeric insulation

Deliverable:

Design for a professional colorimetric indicator

 

 

Project:

S0445 - Condition based maintenance procedures for 33kV and 132kV on load tapchangers