Products

Power Manager (True On Line) UPS series

Power Manager Uninterruptible Power Supplies
PM1500 and PM2000-RM Series


Professional Grade Power UPS for Analytical and Diagnostic Equipment

Awards

Among our clients

Overview
SYSTEL's TRUE ON-LINE Uninterruptible Power Supplies Technology with built-in Power Conditioning characteristic was developed in order to overcome the limitations inherent in other power conversion designs currently on the market, protecting sensitive and critical equipment, offering a premium cost effective solution.

Common UPSes in the markets are designed for computer loads, taking advantage of the "forgiving" design of their switching power supplies which manage blackouts and brownouts of more than 50 milliseconds without necessarily affecting operation or damaging computer equipment.

However, analytical and diagnostic equipment can be severely affected by even shorter power line disturbances such as voltage sags, spikes, surges, lightning, common mode noise or extensive brownouts.

All common technologies of On-line UPSes, as well as Line Interactive and Off-line UPSes, are based on surge-suppressor filtering technology alone and they do not offer ample protection to line contamination that can be passed on to the protected equipment, at significant levels, affecting operation and possibly damaging the sensitive equipment under back up.

In addition as mentioned before, the common UPSes are designed to address, in particular, the computer load type (also known as electronic load) with a steady state regimen, and not to handle complex and "gulping" loads usually integrated in analytical and diagnostic equipment, like high input current crest factor power supplies, motors, pumps, transformers, valves, heaters, lamps, sensors, etc. The common UPSes request an extra power rate capacity for driving these types of loads. When operating such loads at startups, shutdowns, partial switching and asymmetrical current mode, they can generate even voltage overshoots and continuous DC voltage component, damaging the equipment that they are supposed to protect.

Implementation in unique environments
SYSTEL’s UPSes provide an excellent solution for the worst of line conditions (extreme voltage and frequency fluctuations), particularly in countries with unstable electrical networks or developing countries undergoing accelerated expansion of their electrical power network. The UPSes also excel in remote, isolated locations backed-up by auxiliary supplies, such as emergency motor generators.

India is an example of a country with poor line conditions: voltage fluctuations are between -30% to +25% according to the daily load on the local electrical network. Systel’s UPSes have been customized for Indian conditions, are manufactured under license and marketed by Adtech under the name PM 1K-23. In a survey conducted by PC Quest magazine evaluating the cost performance of 22 worldwide UPS manufacturers (APC, Exide, Fiskars, Victron, etc.) Systel’s UPS won first place.

We have succeeded in providing high quality together with a cost effective solution for full power protection of a large number of sensitive and costly equipment. A few illustrative examples of this are:

The MRI systems manufactured by Philips Medical Systems with our PM 1500 series.
Philips Medical Systems is marketing this equipment worldwide, especially in zones with unstable electrical power. In their case, our UPSes satisfactorily protect the computer and electronic loads split from the coils and other heavy but not vital loads. After checking all kinds of options with at least 3 KVA Power Rating, our system was chosen by the client because of its capability, amongst other things, to drive non-linear loads without derating its power conditioner behavior, and its capability to work from the worst power supply sources, including motor generator.

Regarding applications in sites backed up with emergency power source,

Israeli army applications
Systel’s UPSes succeeded in meeting the stringent requirements of Israeli army applications where vital equipment is being supplied from motor generators in the field, solving problems that seemed insolvable with the available budget.


Technology
Systel is a pioneer in the R&D of digital control for power conversion products. Since 1984 Systel has been involved in R&D and manufacturing of digital controlled On-line UPSes.

The PM UPS series is based on Systel's patented control technology of power conversion topology, characterized by bi-directional, four-quadrant inverter and a unique multi-feedback, digital-embedded pulse-by-pulse control, using property digital ICs. This technology eliminates the limitations inherent in other power conversion designs currently on the market based on analog controls.

SYSTEL TRUE ON-LINE POWER CONDITIONED UPS
Four Quadrant Power Conversion Topology and
Digital Control Technology Implementation

Mains or emergency generator

Input rectifier

High frequency bi-directional chopper

High frequency ultra isolated with multi shielded array energy storage transformer

Wave synthesizer 50hz/60hz

Load

Systel's power manager software

SYSTEL FOUR QUADRANT TECHNOLOGY
40 AMP UNMODIFIED INRUSH CURRENT PULSE (CREST FACTOR ABOVE 4.7) IS MEASURED WHEN THE LOAD IS FED FROM THE LINE
23 AMP PULSE MODIFIED LOAD CURRENT SUPPLIED BY SYSTEL'S UPS
INVERTER OUTPUT VOLTAGE (168V PEAK) ONLY SMALL DISTORTION IS VISIBLE IN THE INRUSH CONDITION
DETAILED HALF CYCLE OPERATION

Product/Item	Description	OS
PM 1500 specifications	UPS PM 1500 specifiction	All
PM 2000 specifications	UPS PM 2000 specifiction	All
PMW-Power Manager Software	Full control & settings over the UPS	win 95/98/00
PMW-Power Manager Software	Full control & settings over the UPS	win NT4
PM-Power Manager Software	Full control & settings over the UPS PM 1500VA 230V	DOS
PMN-Power Manager Software	provides power monitoring and orderly shut down - UPS PM 1500VA 230V - 7 A/H	NOVELL 3.11 & later
PMN-Power Manager Software	provides power monitoring and orderly shut down - UPS PM 1500VA 230V - 11 A/H	NOVELL 3.11 & later
PMN-USER MANUAL		NOVELL