Diameter:

Width:

Weight:

Temp Range:

Environmental:

Installation:

12.5 inches (32 cm)

5.5 inches (14 cm)

22 pounds (10 kg)

-40 C to +70 C operating.

Corona free housing through 500 kV, Fully Weatherproof

Suitable for bundled conductor applications

No external power supply is required, the Power-Donut™ is powered from the magnetic field, and internal lithium battery pack. Nominal low current required to operate -- 50 Amps.

Runs on battery for 12 hours when the line current is less than nominal; PD2 will do orderly shut down on low battery. Battery pack charges when the line current reaches above 120 amperes; total charging time is approximately 6 hours.

Measures

Metering Inputs:

Demand/Vars:

Temperature Probes:

Inclination:

Conductor current, Voltage (phase to ground), 2 conductor temperatures, conductor inclination angle.

+/- 0.5% of reading, (Voltage and current scale verified on site)

Measures demand, reactive demand, I-V phase angle, demand hours and reactive demand hours

+/- 1 deg C accuracy, 0.1 deg C resolution

+/- 0.05 degrees accuracy, 0.01 degree resolution

Monitors

Warning & Alarms:

Sag and Tension:

Data Logging:

Self Monitoring:

Measurements and computed values

Three user definable warning and alarm levels on all analog inputs and monitor points

Computes sag and tension based on conductor inclination, user input conductor specifications

Stores users selected measurements and computed values in Flash RAM. Logging intervals are user selectable

Communication

Cell Phone:

Baud Rate:

Power-Donut2™ communicates using patented TDMA polling methodology.

GSM Cell Phone 850 MHz / 900 MHz

115 Kbps maximum