Table of Contents

1 Scope and introduction
2 Control hierarchy
3 Control and monitoring of plant equipment
3A Generator/motor
3B Generator field excitation equipment
3C Generator terminal equipment
3D Generator neutral equipment
3E Unit generator breaker equipment
3F Unit step-up transformer
3G Turbine and pump/turbine
3H Governor
3I Penstock/intake gates or valves
3J Draft tube gate
3K Pump starting equipment
3L Phase reversing equipment
3M Draft tube water depression system
3N Generator/motor cooling
3O Service air
3P Service water
3Q DC power supply
3R AC power supply
3S Water level monitoring equipment
3T Fire protection
4 Control sequencing - generating units
5 Control sequencing - pumped storage units
6 Centralized control
7 Off-site control
8 Trends
Figures
3-1 Major components of a hydroelectric unit with
      reference to descriptive sections
3-2 Controls for large hydroelectric unit basic block
      diagram illustrating extent of controlled or
      associated equipment
3-3 Controls for large hydroelectric unit basic block
      diagram illustrating extent of controlled or
      associated equipment
3-4 Controls for large hydroelectric unit basic block
      diagram illustrating extent of controlled or
      associated equipment
3-B1 Typical potential source-controlled rectifier
      (high initial response excitation system) block
      diagram
3C-1 Typical hydro generator terminal
3E-1 Typical hydro generator breaker interface diagram
3H-1 Typical electric-hydraulic reaction turbine
      governor
3K-1 Reduced voltage starting (phase reversing not
      shown)
3K-2 Part winding starting (unit breaker and phase
      reversing not shown)
3K-3 Pony motor starting (unit breaker and phase
      reversing not shown)
3K-4 Synchronous starting (phase reversing not shown)
3K-5 Static starting (phase reversing not shown)
3L-1 Phase reversal with five-pole motor-operated
      switch (low side reversing shown) to unit step-up
      transformer
3L-2 Phase reversal with two-unit breakers (low side
      reversing shown) to unit step-up transformer
3L-3 Phase reversing equipment locations
4-1 Logic representation of pre-start checks-gen/cond
4-2 Logic representation of auxiliaries start-gen/cond
      mode
4-3 Logic representation of unit run sequence-gen/cond
4-4 Emergency shutdown sequence logic
4-5 Quick shutdown sequence logic
4-6 Normal shutdown sequence logic
4-7 Master relay control system
4-8 Stepped sequence control system
5-1 Logic representation of pre-start checks-pump mode
5-2 Logic representation of auxiliaries start-pump mode
5-3 Logic representation of unit run sequence-pump
      mode - full-voltage starting
5-4 Logic representation of unit run sequence-pump
      mode - reduced-voltage starting
5-5 Logic representation of unit run sequence-pump
      mode - pony motor start
5-6 Logic representation of unit run sequence-pump
      mode - synchronous starting
5-7 Logic representation of unit run sequence-pump
      mode - semi-synchronous starting
5-8 Logic representation of unit run sequence-pump
      mode - static starting
5-9 Logic representation of pump priming and unit load
      sequence-pump mode
5-10 Emergency shutdown sequence logic-pump mode
5-11 Normal shutdown sequence-pump mode
Tables
2-1 Summary of control hierarchy for hydroelectric
      power plants
3A-1 Control and status data transmitted from
      generator/motor to unit control switchboard
3A-2 Control and status data transmitted from unit
      control switchboard to generator/motor
3A-3 Operating power, air and water from service
      equipment to generator/motor
3B-1 Control and status data transmitted from
      excitation system to unit control switchboard
3B-2 Control and status data transmitted from unit
      control switchboard to excitation system
3B-3 Operating power, air and water from service
      equipment to excitation system
3C-1 Control and status data transmitted from unit
      control switchboard to generator terminal
      equipment
3E-1 Signals transmitted from plant equipment to
      generator breaker
3E-2 Signals transmitted from generator breaker to unit
      control switchboard
3F-1 Control and status data transmitted from
      transformer to unit control switchboard
3F-2 Control and status data transmitted from unit
      control switchboard to transformer
3F-3 Operating power, air and water service from
      service equipment to transformer
3G-1 Control and status data transmitted from turbine
      and pump-turbine to unit control switchboard
3G-2 Control and status data transmitted from unit
      control switchboard to turbine and pump-turbine
3G-3 Operating power, air and water from service
      equipment to turbine and pump-turbine
3H-1 Control and status data transmitted from governor
      to unit control switchboard
3H-2 Control and status data transmitted from unit
      control switchboard to governor
3H-3 Operating power, air and water from service
      equipment to governor
3K-1 Control and status data transmitted from pony
      motor unit starting equipment to unit control
      switchboard
3K-2 Control and status data transmitted from static
      starting equipment to unit control switchboard
3L-1 Control and status data transmitted from phase
      reversing equipment to the unit control switchboard
3N-1 Control and status data transmitted to and from the
      cooling system and unit control system
3T-1 Fire protection
4-1 Inputs to the pre-start checks sequence gen/cond
      mode
4-2 Inputs to the auxiliaries start complete sequence
4-3 (All information shown in Fig 4-3. See figure)
4-4 Inputs to the emergency shutdown sequence
4-5 Inputs to the quick shutdown sequence
4-6 Inputs to the normal shutdown sequence
5-1 Inputs to the pre-start checks sequence pump mode
5-2 Inputs to the auxiliaries start complete sequence
      pump mode
Appendix
Questionnaire sample
Questionnaire results

Abstract

Outlines the control and monitoring provisions for equipment and systems associated with conventional and pumped-storage hydroelectric plants. Includes typical methods of local and remote control, details of the control interfaces for plant equipment, requirements for centralized and off-site control, and trends in control systems.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT 1010 : D10 2005