Advanced Power Technologies

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T-HUB Cooling System Monitor

Product Literature

T-HUB is a monitoring and data collection device for power transformers and other large substation apparatus. It monitors up to two banks of fans or pumps and reports if the cooling stages are running correctly. An optional fan exercicser is available for daily, weekly, or monthly fan exercising. An optional annunciator feature is available that permits local annunciation and alarming of 12 optically isolated inputs. An optional DNP3.0 communications port is available to permit remote monitoring of the 12 optically isolated inputs along with fan or pump currents and the monitor's status information.

Monitors condition of motors driving fans and/or pumps

Uses a small split-core CT (provided) to monitor current

Contains up to six current measurement channels. Each with a range of 0-50 Amps

Two voltage input channels to monitor if cooling is commanded. Each channel operates from 24 VAC/VDC to 230 VAC or 160 VDC

Each current measurement channel operates a timed over and under current set point

Two timed alarm relays with form C dry contacts. One for each stage

Optional 12 optically isolated inputs, each with its own seal-in target. Binary point conditions reported through optional DNP or MODBUS interface

Three sealed-in targets for each stage:

Over Current with Cooling Command

Under Current with Cooling Command

Current with no Cooling Command

Targets flash if problem is momentary. Targets double-flash if problem, then no problem, then problem occurs again.

Downloadable events log

Optional daily, weekly, monthly fan exerciser

DNP3.0 level 1 or MODBUS connectivity through an RS-485 interface

Settings through RS-232. Uses terminal emulation software already on your PC. No special software required

Universal Power Supply. Operates from 38 to 160 VDC or 120VAC

Lifetime Warranty

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215 State Route 10, Bldg. 2 - Randolph, NJ 07869
Phone: (973) 328-3300- Fax: (973) 328-0666
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