Instruction manual – AQ 110 arc protection unit
20 (80
)
4
A
RC
S
ENSORS
AQ 100 series provides choice of different types of arc sensors to be utilized in
different units and different switchgear types according to specific application
requirements. Available sensor types are arc light point sensors and arc light fiber
optic loop sensors.
Arc light point sensors are typically installed in metal clad compartments
providing quick accurate location of the faulted area. Arc light fiber loop sensors
are installed typically to cover a wider protected area with one fiber when no need
for more exact fault location exists.
4.1
A
RC LIGHT POINT SENSOR
AQ
01
AQ 01 is an arc light point sensor with a light sensitive photodiode element
activated by arc light. AQ01 arc sensors should be mounted in the switchgear
cubicles in such a way that the light sensitive part covers the protected area as
completely as possible. One sensor per closed metal clad compartment should
be utilized. In open spaces, such as the bus bar section, arc sensors should be
mounted maximum 2 meters apart.
The fixed light sensitivity of the AQ01 sensor is 8000 Lux. Sensor does not
require user settings. Detection radius is 180 degrees.
