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 ...
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