PREFACE
Just like a human body every equipment has its own life to serve the purpose for which it is meant. A well maintained equipment not only serves its purpose efficiently, economically and quickly but also exceeds its expected life time. After formation of PTCUL as a State transmission utility to maintain, operate and run the State Grid of Uttarakhand as per Grid Code as well standard practices and procedures, the need of an O&M manual became essential. This Manual has been prepared for existing transmission network of PTCUL i.e. decade old Transmission lines, substations in plane and hilly terrain as well as new lines and substations added to the system to maintain balance of Load and Generation etc. There are
two type of maintenance:
i) Preventive Maintenance
ii) Break down Maintenance
Preventive maintenance is a routine and regular maintenance to prevent future breakdown. While framing this O&M manual for Substation and lines an attempt has been made to formulate proper guide lines, directions and instructions with suitable standard data and ratings, which will be helpful to field officers and staff for timely maintenance.
This O&M manual consists of two parts:-
Part – I deals with Preventative Maintenance of Substation Equipments and Protective Switchgears.
Part – II deals with Preventative Maintenance of Transmission Lines.
The emphasis has been given to include the operation and maintenance procedures of new and modern technology for substation equipments and protective relays.
