PRODUCT INFORMATION

Short-circuit indicator

TypE FLA3

The short-circuit indicator type FLA3 is used in overhead lines of a network. The indicator can be mounted under live conditions with the help of an adapter and a hot stick. The FLA3 is completely self sustained by the monitored network from a current flow of 20A upwards. The indication is done by six fl ashing LEDs for a clear nighttime visibility and three red display areas for a clear daytime visibility. The FLA3 can communicate via a bidirectional wireless connection to a remote control. In this way all settings of the indicator can be adjusted at any time without removing the indicator from the powered line.

The FLA3 stands out for the great flexibility of the adjustments that can be done. Beside the basic settings of the indicator like trip current, response delay, reset time, etc., the FLA3 can be adapted to auto-reclosers in the network. This makes an optimized fault indication possible and also allows the indication of different fault types. Permanent and temporary faults can distinguished and indicated separately.The bidirectional connection between the remote control and short-circuit indicator allows to read out the present current of the monitored network with the remote control at any time.

The short-circuit indicator type FLA3 can be connected to the remote indication system type RIS (page 26).

Order Data
Type FLA3 | for overhead-lines 40.20.10
Remote control type HS 40.30.10
Mounting adapter | bayonet type 40.50.10
Mounting adapter | clamp type 40.50.11
Mounting adapter | spline type 40.50.12

Features and Benefits

Operation in overhead line networks
Easy and full confi gurability with a remote control
Bidirectional connection to a remote control
Trip current selectable between 40 and 1500 A in steps of 20A
Or
Automatic setting of the trip current depending on service current
Response delay selectable between 40 and 300 ms in steps of 20 ms
Power supply: lithium battery type A 3.6 V
Inrush current restraint of 2 seconds
Detection and indication of
– Permanent fault
– Temporary faults
– Transient currents
Reset function:
– Choice: reset by recovering service current yes/no
– Reset by remote control
– Time: selectable from 30 min. to 12 hours in steps of 30 min.
Measuring of the operating current by remote control
LED indication and red display area
Optional: configuration regarding to installed auto-reclosers for optimized fault detection