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PCCA Journal|2

nd

Quarter 2015

57

bushings.

Line/connector sensors measure conductor/connector

temperature, catenary, and line current. The lightweight,

maintenance-free sensors are self-powered from the line cur-

rent and can run approximately 45 days with no line current.

They communicate using a 2.4 GHz RF signal to a base sta-

tion, which aggregates the data from multiple sensors.

Weather nodes collect wind speed and direction, baromet-

ric pressure and ambient temperature. The weather nodes are

solar powered with approximately two weeks’ maintenance-

free battery backup. The estimated battery life is 10 to 12

years.

Leakage current sensors monitor insulators and equipment

bushings for contamination buildup. Sensors mount to the

grounded side of the insulator/bushing and communicate

wirelessly back to a base station.

Base stations collect and aggregate data from up to 128

devices. Base stations also collect the same weather data

as a weather node and are available with optional relative

humidity sensor, rain gauge and pyranometer. They are solar

powered with approximately two weeks’ maintenance-free

battery backup.

All components can operate in an environmental rating of

-40°C to 50°C ambient.

Vac-Tron Introduces Gas Unit

V

ac-Tron Equipment, an industry innovation leader

in vacuum excavation, recently introduced the new

LP 533/833 SGT, its new gas unit. Powered by a

37-horsepower Kohler gas engine, this unit has similar perfor-

mance specs as the pre tier 4 final SDT model with 1000 CFM

Vacuum Pump. The SGT delivers great performance with a

much lower cost of the Tier 4 final diesel option.

The machine features the new Series 33 Safety Rear Door.

The hydraulic screw rear door offers a high-torque motor

with a self-adjusting threaded shaft designed for low mainte-

nance and easy operation. It opens to a full 90-degree angle

and is equipped with a safety lock that engages automati-

cally.

It features CVS Filtration Housing. The LP ground level fil-

tration housing also incorporates a 28-inch-diameter cyclone,

four-way valve for reverse pressure, and a large silencer for

quiet performance (patent pending).

The SGT has an optional strong arm, which helps support

the weight of the vacuum hose. And it has a 6-inch debris

discharge valve for quickly off-loading liquid materials by

gravity or under pressure to another container.

The machine features an easy-access engine compartment

for service and regular maintenance of all components.

3030 24TH AVENUE SOUTH, MOORHEAD, MN 56560

218.284.9500

AEVENIA.COM