The reference unit
Placed permanently in a position, it is accessible by conventional telephone CPR.
It includes:
– A tag containing the antenna and GPS receiver for accurate timing measurements.
– A housing containing the measurement and communication electronics.On the back side is all the connections. This housing can be attached to a relay board or integrated into a 19 “4U rack.On the front panel are all function, power, GPS synchronization indicators, presence of reference voltage 1 and 2 and telephone line socket.The mobile unit:
It consists of a bag “repeater” containing all communication and measuring elements.
The GPS mobile tag (precise synchronization of measurements).
The mobile phone (communication with the reference).• Intelligent Sensor
Once on, all the functions are automatic and without interpretation.
It displays the phase index.
It automatically recognizes the following situations:
direct voltage phase / earth of the LV network, the resulting tensions capacitive dividers HTA cells.
The signals coming from the sensor for the bare networks HT. Usable on open stations and aerial HTA networks, it is autonomous and works only on contact.• Reference Unit:
– voltage references from 50 to 250 Vrms. Power consumption <1 mA.
– GPS antenna with 30 m cable.
– CPR telephone line; Connector RG11C.
– External 12 to 15 VDC 1 A.• Repeater:
– sealed polyethylene bag; Accessory compartment.
– integrated 868 MHz RF receiver; Integrated RF 433 MHz transceiver.
– RF antennas integrated into the lid.
– GPS receiver with active antenna.
– RF communication at 868 MHz unidirectional 10 mW with repeater.
– power supply with rechargeable NiMH batteries, autonomy 8 hours; Recharge in 4 hours; Possibility of operation and recharging on cigarette lighter socket; Load indicator; Charger 12V DC 1A external.• Intelligent Sensor:
– use on BT 50 to 250 V phase / earth 50 Hz.
– Use on capacitive taps of 1-4700 pF primary capacity.
– standard tip U 1000 Cat. III, cord length 1 m.
– crocodile clip U 1000 Cat. III on cord.
– Automatic shut-off after 2 minutes of inactivity.
– power supply 4 disposable LR6 AA batteries, autonomy> to 1 500 measurements.• Sensor for bare MV networks:
– operating voltages phase / earth 2.5 to 30 kV.
– infrared communication distance max. 20 m, beam diameter at 6 m: 1 m; Contact measurement.
– Automatic start-up by presence of voltage.
– automatic cut-off when the voltage is removed.
– internal power supply by battery 9V autonomy> to 1 500 measurements.
– fixation by standard notched tip.

Profit for the phase identification with a central reference:
– better planning of distribution networks and better economic management of their developments.
– Reduction or postponement of investments (eg HV / LV transformers overloaded prematurely due to poor distribution of single-phase loads).
– A reduction in the operating and intervention costs: planned and knowingly implemented intervention, for example additional work durations caused by the lack of prior knowledge of existing indices in an installation.
– Reduction of customer recharge times (connection of generators).
– Better security of goods and people.
– Compliance and installation of visual markings on electrical installations.