AC Circuits and Power Systems in Practice

Index

a

• Accumulation meter
• Accuracy class
  • current transformers
  • limits defined by IEC 61869–2 for CTs
  • limits defined by IEC 61869–3 for VTs
  • limits defined by IEEE C57.13 for CTs
  • limits defined by IEEE C57.13 for VTs
  • metering VTs
  • protective VTs
  • special class CTs
• Accuracy limit factor, protection current transformers
• Active (see Power)
  • power
  • power equation
  • power flow
• Admittance
  • CT magnetising
  • general expression
• Aerial
  • switchgear
  • switchyard
• Air
  • distributed gaps
  • dominant air gap
  • gap (see also Magnetic, circuits)
  • gap area
  • gap reluctance
  • gaps in CT cores
  • residual gap
  • stored energy
• Alpha operator
  • magnitude and phase of
  • properties of
• Ampere
  • turn balance in transformers
  • turns (MMF)
• Apparent power
  • measurement of
  • in the presence of harmonics
• Approach boundary
  • limits, for shock prevention
  • restricted
• Arc flash
  • boundary
  • busbar protection
  • fibre optic sensors
  • injury
  • in LV cubicles
  • monitor relays
  • PPE
  • rated fabrics
  • thermal performance value, (ATPV)
• Arcing, injury (see Arc flash, injury)
  • formation
  • switch
  • in tap changers
• Automatic voltage regulator (AVR)

b

• Bandwidth
  • resonant circuit
  • voltage
• Basic insulation level (BIL), in transformers
• B‐H, loop
• Bias
  • characteristics
  • windings
• Billing, interval
• Black, start
• Blondel
  • Andre
  • Blondel’s theorem
  • compliant metering
• Boost regulator (see also Step regulator)
• Breaker‐and‐a‐half, busbar configuration
• Buck regulator (see also Step regulator)
• Burden (see also Current transformers); Voltage transformers
  • CT burden
  • power factor ...