Complicated 3 Phase, Auto

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LFAA 101, 102 Auto-Reclose Relay

AREVA T&D Inc

nominal voltage: 24/27 V
30/34 V
48/54 V
110/125 V
220/250 V
Typically 9 W, plus 1.5 W per energised ouput Relay (RLO-7) and 0.4 W (RL8-13)
Maximum Continuous Current:
Maximum Interrupting Current (symmetrical):
load-interrupting current (asymmetrical):
Insulation material (i.e. oil, air epoxy?):
Remote lockout indicator: Available
Standard bushing leakage distance to ground:
Alternative bushing leakage distance to ground:
Available factory installed accessories:
weight:
Finish/color:
manufacturer's comment: ♦ Selectable single and/or three phase autoreclosing
♦ Suitable for feeders controlled by one or two circuit breakers
♦ Automatic scheme documentation via ladder diagram
♦ Comprehensive analysis of auto reclose attempts LFAA 101 and LFAA 102 For single phase auto-relose, a phase-to-earth fault on any one phase will initiate single phase tripping and auto-reclose of the faulty phase only. A fault involving two of more phases will result in three phase tripping. For this purpose the scheme will convert any two pole trip of the circuit breaker into a three pole trip.
LFAA 102 Single phase auto-reclosures can be either of the simultaneous or sequential type depending on the programme selected. Whenever simultaneous reclosure is selected, both circuit breakers will trip single phase and reclose simultaneously after the single phase dead time. Whenever sequential reclosure is selected, the leader circuit breaker will trip single phase and reclose after the single phase dead time but the follower circuit breaker will trip three phase and reclose after the selected follower circuit breaker delay time has elapsed. Three phase auto-reclose can be initiated by single phase faults only, multi-phase faults only or any fault depending on the scheme selected and whether the auto-reclosure is first or second shot. In the case of faults which result in the tripping of one or two poles of the circuit breaker, the relay will convert the single or two pole trip into a three pole trip before initiating three phase reclosing.

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MiCOM P842 Mesh corner Autoreclose Relay

AREVA T&D Inc

nominal voltage:
Maximum Continuous Current:
Maximum Interrupting Current (symmetrical):
load-interrupting current (asymmetrical):
Insulation material (i.e. oil, air epoxy?):
Remote lockout indicator:
Standard bushing leakage distance to ground:
Alternative bushing leakage distance to ground:
Available factory installed accessories:
weight:
Finish/color:
manufacturer's comment: The relay provides the following main features:
♦ Flexible configuration
♦ DAR (Delayed Autoreclose in 3 pole tripping Applications)
♦ System checks
♦ Auto-isolation
♦ Ferroresonance suppression
♦ Peer to peer communications
♦ PSL (programmable scheme logic)

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Type KAVR 100 Multi-shot Auto-reclose

AREVA T&D Inc

nominal voltage: 0 to 327 V
Maximum Continuous Current:
Maximum Interrupting Current (symmetrical):
load-interrupting current (asymmetrical):
Insulation material (i.e. oil, air epoxy?):
Remote lockout indicator: Available
Standard bushing leakage distance to ground:
Alternative bushing leakage distance to ground:
Available factory installed accessories: A highly integrated 16-bit micro-controller uses digital signal processing techniques to analyze power system quantities and implement scheme logic.
The micro-controller performs all of the major software functions such as input signal processing, scheme logic, output relay control and handling of the operator interface.
The relay has 2 analogue inputs and 8 opto-isolated digital inputs. The internal VTs are used to isolate stepdown and condition the input from the line VTs. Their output signals are then converted into digital data for further processing.
The front plate contains a 2 x 16 character, alphanumberic liquid crystal display (LCD) and 4 pushbuttons to provide local access to the relay’s menu. There are also 3 light emitting diodes (LED) for visual indication of the relay’s status.
Standard Midos terminal blocks are located at the rear of the relay providing connections for all input and output circuits such as dc supply, ac voltage and a K-Bus communications port.
weight:
Finish/color:
manufacturer's comment: >Number of reclosures selectable between 1 and 4 Optional single phase reclosure on the first shot
> Integral synchronism check function for auto-reclose and manual circuit breaker closure
> Selectable undervoltage blocking and differential voltage blocking features
> Maintenance alarm and lockout
> Independently adjustable timers with wide setting ranges
> Flexible operating logic options via software function links
> Measurement of line and busbar voltage, system frequency, and phase angle slip frequency
> Remote communications via K-Bus
> Integral event recorder accessible from remote PC
> Comprehensive self-checking and alarms

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Type KAVR 130 Multi-shot Auto-reclose

AREVA T&D Inc

nominal voltage: 0 to 327 V
Maximum Continuous Current:
Maximum Interrupting Current (symmetrical):
load-interrupting current (asymmetrical):
Insulation material (i.e. oil, air epoxy?):
Remote lockout indicator: Available
Standard bushing leakage distance to ground:
Alternative bushing leakage distance to ground:
Available factory installed accessories: A highly integrated 16-bit micro-controller uses digital signal processing techniques to analyze power system quantities and implement scheme logic.
The micro-controller performs all of the major software functions such as input signal processing, scheme logic, output relay control and handling of the operator interface.
The relay has 2 analogue inputs and 8 opto-isolated digital inputs. The internal VTs are used to isolate stepdown and condition the input from the line VTs. Their output signals are then converted into digital data for further processing.
The front plate contains a 2 x 16 character, alphanumberic liquid crystal display (LCD) and 4 pushbuttons to provide local access to the relay’s menu. There are also 3 light emitting diodes (LED) for visual indication of the relay’s status.
Standard Midos terminal blocks are located at the rear of the relay providing connections for all input and output circuits such as dc supply, ac voltage and a K-Bus communications port.
weight:
Finish/color:
manufacturer's comment: >Number of reclosures selectable between 1 and 4 Optional single phase reclosure on the first shot
> Integral synchronism check function for auto-reclose and manual circuit breaker closure
> Selectable undervoltage blocking and differential voltage blocking features
> Maintenance alarm and lockout
> Independently adjustable timers with wide setting ranges
> Flexible operating logic options via software function links
> Measurement of line and busbar voltage, system frequency, and phase angle slip frequency
> Remote communications via K-Bus
> Integral event recorder accessible from remote PC
> Comprehensive self-checking and alarms