APTRANSCO EHV Substations & Transmission Lines Technical Reference Manual Volume I

Description

APTRANSCO EHV Substations & Transmission Lines Technical Reference Manual Volume I

This is Volume I of the APTRANSCO Technical Reference Book, a 327-page reference manual issued by the Transmission Corporation of Andhra Pradesh Limited covering the construction and operational practices of EHV (Extra High Voltage) substations and transmission lines, together with commercial and load despatch operations. This APTRANSCO EHV Substations & Transmission Lines Technical Reference Manual is built as three internal manuals bound together: Transmission Planning, Design/Engineering/Technical Specifications/Tendering & Award, and Commercial and Load Despatch Operations.

File Details

• Manual type: Utility technical reference / engineering manual
• Issuing body: Transmission Corporation of Andhra Pradesh Limited (APTRANSCO)
• Volume: Volume I
• Language: English
• Page count: 327 pages
• File format: PDF, instant digital download

Chapters Covered

• Manual on Transmission Planning
  • Objective and Planning Philosophy
  • Transmission Planning Requirements
  • Planning Norms and Guidelines
  • Planning Criteria
  • Planning Methodologies
  • Power System Studies
  • Power System Studies for Identification of Projects and Prioritization
  • APERC Directives
  • Electricity Act 2003
  • Planning and System Engineering

  IMAGES PREVIEW

  

  

  

• Manual on Design, Engineering, Technical Specifications, Tendering and Award
  • Project Inception
  • Design and Engineering of Transmission Projects
  • Substation Layout
  • Substation Main Equipment
  • Auxiliary Facilities
  • Transmission Lines
  • New Technologies in Substations, Lines & Materials
  • Important Technical Specifications for Equipment
  • General Specification Terms
  • Tendering and Contract Award
• Manual on Commercial and Load Despatch Operations
  • Interface Meters: Generation-Transmission-Distribution
  • Automatic Meter Reading
  • Transmission Losses Computation
  • Determination of Transmission Charges
  • Implementation of Open Access and Trading
  • Overview of APPCC Power Procurement Process
  • Role of State, Regional and National Grids
  • Availability Based Tariff
  • UI Charges Calculations and Reactive Charges
  • Inter-State Transmission System – Sharing of Transmission Charges and Losses
  • Metering Code
  • State Load Despatch Centre Operations
  • Scheduling and Despatch Code
  • Merit Order Despatch of Generators
  • Grid Management
  • Power Transfer Capability – Congestion Management
  • Grid Restoration Procedures
  • SCADA & Unified Load Despatch

Taken as a whole, this technical reference book walks a working engineer through the full lifecycle of an EHV network – from load forecasting and planning norms, through substation and line design and equipment procurement, into the commercial metering, open access, and load despatch procedures that keep the grid running day to day. It reads as an internal utility standard rather than a textbook, with specific voltage classes (33kV, 132kV, 220kV, 400kV, 765kV), APTRANSCO-adopted ratings, and regulatory references throughout.

Substation Equipment Specifications

The Design, Engineering and Technical Specifications section of this APTRANSCO EHV Substations & Transmission Lines Technical Reference Manual sets out principal parameters for major substation equipment, including:

• Power transformers – auto-transformer and two-winding types, voltage classes 400/220/33kV, 220/132/11kV and 132/33/11kV, capacity ratings from 25 to 315 MVA, tap changer ranges, insulation levels, and tank/bushing construction details
• Current transformers – single-phase dead-tank oil-filled units for 132kV, 220kV and 400kV systems, with impulse withstand voltages, short-time and dynamic current ratings, and accuracy class/burden requirements for metering and protection cores
• Disconnectors and earth switches (isolators)
• Insulator strings – type and rating selection
• Circuit breaker fault-clearing and short-circuit level data by voltage class

Transmission Line and Planning Data

The planning chapters of this reference manual give APTRANSCO-standardized conductor selections (Twin Moose ACSR for 400kV, Zebra/Moose ACSR for 220kV, Panther ACSR for 132kV) with ampacity tables at different ambient and conductor temperatures, standard transformer ratings by voltage level, substation maximum capacity formulas, insulation coordination voltage tables (lightning impulse and switching overvoltage levels for 420kV and 800kV systems), and short-circuit level/fault clearing time norms used across the network.

This APTRANSCO Technical Reference Manual Volume I is a practical fit for transmission planning engineers, substation design engineers, procurement and tendering staff drafting equipment specifications, and load despatch/commercial staff who need the metering code, open access, and grid restoration procedures in one place. Anyone studying EHV substation and transmission line practice as implemented by an Indian state transmission utility will find the equipment specification tables and planning criteria in this manual directly usable as reference data – correct tap-changer ranges, insulation levels, conductor ampacities, and short-circuit withstand ratings are exactly the details that are easy to get wrong from memory and costly to get wrong on a tender or design drawing. Once you complete your purchase, this APTRANSCO EHV Substations & Transmission Lines Technical Reference Manual Volume I downloads instantly as a PDF – no shipping, no waiting, readable on any computer, tablet, or phone, and easy to print or keep open alongside your design software or tender documents.