General Description - Infinite TRANSTECTOR 700 AV/T Series Owner's Manual

GENERAL DESCRIPTION

The Series 700 AV/T Power Conditioner is a continuous duty power line conditioner designed to
supply reliable, clean regulated power to critical loads. An efficient design with state of the art micro-
processor controlled solid state devices provide immunity to all line disturbances.
The basic design consists of a three phase triple shielded isolation transformer with seven separate
voltage taps per phase. Output regulation is achieved by monitoring the input and automatically
switching taps anytime the input line sags or surges. The special process of triple shielded isolation
transformer provide superior common mode and transverse mode noise attenuation. Automatic
switching occurs during current zero allowing noise free switches for both leading and lagging power
factor loads that are connected to the Series 700AV/T.
MONITOR
Monitoring of the Series 700AV/T is simple, clean and effective. Three green light indicators are
utilized to display "POWER ON" (output line to neutral for each phase) and one red light indicator
to display "ALERT". The "POWER ON" display is connected directly to the output that indicates the
Series 700AV/T is operating properly with just a quick glance. The "ALERT" display represents an
over-temp problem or output voltage loss (optional) when illuminated, and will shut down the output,
but cooling fans remain on. Over-temp thermal sensors are strategically located at critical points on
the regulator assemblies and transformer. The main AC input circuit breaker must be turned off in
order to reset the "ALERT" light.
PROTECTION
Protection is accomplished very effectively to minimize failures and the cost of repairs. A total of four
major devices protect the Series 700AV/T.
1. The input is protected with a integrally mounted AC circuit breaker for abnormal current
overloads and provides a convenient means of disconnecting utility power.
A. A. As an option the input breaker may be equipped with a shunt trip device that is
interfaced with a REMOTE EMERGENCY POWER OFF PUSH BUTTON. By pressing this
button, the input breaker will trip and disable the Series 700AV/T completely. The input
breaker must be physically reset before unit will turn on again.
2. The electronic regulating devices are protected with fast acting semi-conductor fuses. These
fuses are designed to clear before damage occurs to the more expensive SCR regulating
devices. The main transformer is protected by fuse links connecting the SCR regulators
together, and are designed to clear in the event that two or more SCR's should fail. This will
prevent a transformer tap short and the possibility of transformer failure.
3. (Optional) The output of the Series 700AV/T is constantly monitored for extreme over and
under voltage conditions. This device monitors each output phase and will electronically
disable the Series 700AV/T when any phase exceeds +10% or -10% of nominal output
voltage.
4. Overtemp sensing devices are mounted at critical points on the SCR regulating assembly and
the main transformer. When an overtemp condition exists the "ALERT" light will illuminate and
hold until the overtemp is corrected. There are no automatic shutoff circuits for the "ALERT"
condition. The main AC input breaker must be turned off in order to reset the "ALERT" light.
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