General Description - Infinite Transtector 700 A/VS Series Owner's Manual

110K(i) 50 Hz Power Conditioner | Owners Manual

GENERAL DESCRIPTION

The Series 700 A/VS Power Processor is 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 use of a triple shielded isolation transformer provides 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 700A/VS.
MONITOR
Monitoring of the Series 700A/VS 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 700A/
VS 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 five major
devices protect the Series 700A/VS.
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. 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 700A/VS completely. The input breaker must be physically reset
before unit will turn on again.
2. 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 700A/VS is constantly monitored for extreme over and under
voltage conditions. This device monitors each output phase and will electronically disable the Series
700A/VS 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 shut-off 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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