ABB Eagle Handmatig - Pagina 15

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Modes of Operation

Eagle can be configured to operate as a simple

single-phase breaker, sectionalizer or a recloser. A

single configuration can be used in multiple

applications at various levels of a feeder.

Breaker

Recloser

Cold Load Pickup and 2

Harmonic Inrush

Restraint

Depending on the protection philosophy, a

simpler cold load pickup can be set up or a more

sophisticated 2

harmonic inrush blocking can be

configured to avoid nuisance tripping from load

picking up after a sustained outage.

Cold Load Pickup

Harmonic Inrush Blocking

Adaptive Non-Reclose and Hot Line Tag Modes

Toggling the "non-reclose" handle triggers the

recloser into non-reclose / hot ling tag mode. By

default, Eagle enters the non-reclose mode when

the NR handle is engaged. It uses the fastest

available tripping curve to trip and then stops

auto-reclosing. Alternatively, if hot line tag

settings are enabled, the recloser enters hot line

tag mode when the NR handle is engaged. The

protection can be made more sensitive using the

pickup and time multiplier settings. The NR

handle is clearly visible from ground level when

Sectionalizer

engaged.

Non-Reclose Mode

= 1.0

HLT

= 1.0

HLT

Non-Reclose Mode

NR Handle

Non-Reclose Mode

< 1.0

HLT

< 1.0

HLT

Hot Line Tag Mode