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Power Conditioners
for Line Isolation
low-impedance isolation transformers and automatic voltage regulators
for precision regulated ac power
and systems surge protection
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Power conditioners come in
many forms for solving many different kinds of ac power problems
as well as providing noise filtering and surge protection, with some
also providing automatic voltage regulation.
This page is dedicated to line
conditioners based on isolation transformer technology to provide
clean power that is free of transients and line noise, and with a
pristine common mode, due to the neutral-ground bond on the output of
the isolation transformer. (incoming building power, at the electric
utility service entrance, is the other place where you will find a
neutral-ground bond). The re-created neutral-ground bond is why many
people think of an isolation transformer as a new 'dedicated' line - a
term that really should mean a dedicated circuit with it's own circuit
breaker. What modern electronics want, to operate seamlessly, is a
pure unadulterated stream of smooth flowing electrons. Due to the
magnetics involved, an isolation transformer is a huge part of making
that possible. (Also, an isolation transformer is the only code
approved method of re-creating a neutral-ground bond other than where
the electric utility does it at the building service entrance).
But, isolation transformers alone, with
the exception of the ferroresonant constant voltage isolation
transformer, are Not voltage regulation systems. In the face of
rolling brownouts, momentary dips in voltage due to motor startups,
etc., equipment has a much better chance of running smoothly if
automatic voltage regulation equipment is also utilized. For voltage
regulators alone (you may already have a good building isolation
transformer helping you), please visit the
Ac Voltage Regulators page. (Note: electrical noise 'within' your
building often necessitates 'point-of-use' isolation line conditioners
as a solution.)
That said, the best power protection is
isolation transformer power conditioning Plus precision voltage
regulation, placed as close to the 'point-of-use' as you can
reasonably get. There are some models below that provide both modes of
power quality correction. (And of course, everyone as standard
practice should have a stout surge protective device at the electric
utility service entrance as close to the building ground rod as
feasible, for first stage ac mains surge protection).
Please look at the
power conditioners
table, or at the more detailed descriptions further down, to determine
the power conditioner series you need.
In the table, click on the hyperlink bookmark, such
as 'ILc,' to go to that power conditioning series summary. If you then
want more detailed specifications, click on the underlined hyperlink.
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Power
conditioner features |
Power
conditioner series |
Power conditioners with isolation transformer output
(Click on underlined hyperlink
or picture to view full brochure / specifications
PDF)
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ILc-1000B
ILc-5500
ILc-15000 |
ILc ~ single phase
These line conditioners provide the all-round best (best, meaning for typical
installations not requiring voltage regulation as well. If you need voltage
regulation, too, please see the FLc or VRp-ILc combination units.) power conditioning and
surge protection for sensitive electronic equipment. The integral
low-impedance isolation transformer provides 100% isolation from the input
ac line. The secondary neutral-to-ground bond eliminates all surge voltages
between neutral and ground. Surge protection and noise filtering are
superior to conventional surge protection and filtering devices.
ILc Series conditioners reduce the need for a high quality ground and a
dedicated line, while eliminating interference from adjacent sources of
disturbances. ILc contributes to enhanced operation, improved repeatability,
fewer reboots and system lock-ups and extended operating life. In addition,
a reduction in equipment down time and service costs can be expected.
Designed for situations where reliability and
predictability matter to the enterprise. Examples include: point-of-sale
terminals, telecommunications equipment, file servers, routers, digital
copiers, office machines, industrial controllers (PLC), automatic test
equipment (ATE), laboratory analyzers and other sensitive, specialized
microprocessor-based equipment.
120 vac single phase ILc models include:
ILc-600B
and 1000B ~ 120V, 600VA and 1000VA
ILc-1800/2000 ~
120V, 1800VA/1.8kVA-2000VA/2kVA
ILc-2400-3600
~ 120V, 2.4kVA and 3.6kVA
230 vac single phase ILc models include:
ILc-2400-3600
~ 208/220/230/240V, 2.4kVA and 3.6kVA
ILc-4400-5500
~ 208/220/230/240V, 4.4kVA and 5.5kVA
ILc-15000
~ 208V, single phase, 15kVA
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ILc-15000
shown |
ILc ~ three phase
Three phase low-impedance
isolation transformer line conditioners. The integral isolation transformer
provide complete isolation between the primary and secondary, and permits
bonding its output neutral to ground, which completely eliminates all
disturbances between neutral and ground, regardless of source. The series
inductance of the isolation transformer in combination with capacitive
elements and MOVs, provide superb noise filtering, as well as coordinated
multi-stage surge protection in accordance with the principles of
IEC-61312.3.
These are recommended for severe environments where
absolute reliability is a must. Applications include: sensitive telecommunications, radio base stations (RBS)/base transmitter stations
(BTS), transmission sites for backhaul (including microwave links),
industrial and medical equipment, and other sensitive, specialized
microprocessor-based equipment. The ILc series offers full transformer isolation with a
neutral-to-ground bond, excellent surge protection and noise
filtering, tolerance of frequency variations and unpredictable loads, high
efficiency, quiet operation and high reliability. The ILc series
comes with a limited five-year warranty.
ILc ~ three phase delta to wye
Same characteristics
as above units, but with 3 phase 400V delta input, and 230/400V wye output. Other sizes
and voltages are available. Please call.
ILc-9000/16500
~ 400V delta to 230/400V wye, 9kVA and 16.5kVA
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Medical
isolation transformer power conditioners
(Click on underlined hyperlink
or picture to view full brochure / specifications
PDF)
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ILc-1400Med4 |
ILc-Med
~ single phase
Hospital-grade low-impedance
medical isolation transformers. As above ILc Series, but
enhanced and UL Listed to UL/cUL 60601-1 (formerly UL 2601) meeting the medical grade low leakage
current
specifications (less than 300 micro-amperes) for patient vicinity equipment applications.
These units typically have less than 50 micro-amperes leakage current. Other sizes
are available for custom medical applications.
ILc-1000-1400Med4
~ 120V, 1000VA and 1400VA |
Power conditioners with voltage regulation and isolation
(Click on underlined hyperlink
or picture to view full brochure / specifications
PDF)
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FLc
~ single phase
Ferroresonant constant voltage isolation transformer voltage regulation, Recommended for
extreme environments where absolute reliability is a must. The FLc units can
replace a dedicated line and reduce harmonics, while improving system
performance. Applications include industrial control equipment and telephone
systems, generator/UPS combinations and other types of equipment with high
availability and reliability requirements. The FLc Series offers guaranteed
constant output voltage via a ferroresonant transformer, full isolation with
a neutral-to-ground bond, the best surge protection available, excellent
noise filtering, as well as excellent reliability.
(230V models
available).
FLc-750-1000-1500 ~ 120V ~ 750VA, 1000VA and 1500VA ~ 120V
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ILc-VRp ~ single phase, universal input/output
The ILc-VRp dual range automatic precision
voltage regulator with built-in low-impedance isolation transformer allows
trouble-free operation of electronic equipment over a very wide ac voltage
range of 120vac or 240vac +/-20% found in many developing countries. Output
regulation responds in less than one line cycle and corrects output voltage
to 115vac or 230vac +/-2.5% with 20,000 corrections per second. There is no switching of taps
or otherwise a break in the power path as continuous PWM (pulse-width-modulation)
switching of the primary winding of a buck-boost transformer leaves the
secondary power path intact.
ILc-2000-VRp-Dual-Range ~ 120V+240V, 2000VA
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VRp-ILc-16500-0338 |
VRp-Ilc ~
three phase
The VRp-ILc automatic precision voltage regulator with built-in
low-impedance isolation transformer allows trouble-free operation of
electronic equipment over a very wide mains ac voltage range of 400V +/-20%
(+/-30% for short durations) found in many developing countries.
There is no
switching of taps or otherwise a break in the power path thanks to
continuous PWM (pulsed-width-modulation) switching of a buck-boost
transformer primary winding. Outstanding voltage regulation: under normal
input range of 400vac +/- 20%, output voltage per phase will be 230 vac +/-1% (47 to
63Hz). Units feature an over/under voltage cutoff, with automatic restart
when ac mains voltage returns to normal (safe) condition, below 300vac or
above 160vac. Failsafe: automatic bypass (even during bypass, the over/under
voltage protection is active).
These units are designed for
applications where absolutely safe and precisely regulated ac power is
required, such as mobile communications (GSM/satellite/wireless broadband),
radio base stations (RBS) /base transmitter stations (BTS), radio / TV
broadcasting, transmission sites for backhaul (including microwave links)
industrial process controller (PLC), medical (mobile MRI, CT) and laboratory
or analytical measurement equipment.
VRp-ILc-16500-0338, 16.5kVA, 400V delta
in, 230/400V wye out.
Other
sizes/configurations are available, please call.
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Outdoor power
conditioners with voltage regulation
(Click on underlined hyperlink
or picture to view full brochure / specifications
PDF)
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Outdoor VRx ~ single phase
TSi Power’s Outdoor VRx precision PWM automatic voltage regulator with
optional built-in low-impedance isolation transformer allows trouble-free
operation of electronic equipment over a wide mains ac voltage range of 172
to 276V found in many developing countries. There is no switching of taps or
otherwise a break in the power path thanks to continuous PWM switching of a
buck-boost transformer primary winding. VRx is also designed with a
fail-safe automatic bypass which enables the VRx to provide power to the
load even in the event of internal failure that may otherwise result in a
disruption of power to the load. VRx with optional isolation transformer
provides complete isolation from the ac line, with a neutral-to-ground bond
to eliminate all surge voltages between neutral and ground.
VRx-4400-0455-0460, 220/230/240V, 4.4kVA, single phase
Other sizes
are available for different voltages. |
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Outdoor VRp-ILc ~ three phase
As above
three phase VRp-ILc Series, but the unit comes in a specially designed outdoor rated
enclosure with multiple air exhaust fans. To maximize cooling, the isolation
transformer is housed in an IP23 outer enclosure. Sensitive components are
housed in an IP55 inner case. Overall equivalent is to an IP44 (NEMA-3R)
enclosure. The automatic bypass assures that connected equipment will not
shut down, even if VRp-ILc fails. VRp-ILc is compatible with all loads as it
does not switch any components in the power path. VRp-ILc’s ultra-low
impedance assures stability even with the most demanding loads. The
automatic overvoltage cutoff with automatic restart ensures that operation
is off-line during serious overvoltage situations that could damage the
system and/or load, and then restarts without intervention when the ac mains
voltage returns to the normal operating range. The lightweight, high
efficiency outdoor VRp-ILc is easy to install in exterior environments.
VRp-ILc-15000/30000-5339, 15kVA/30kVA, 400vac delta in, 230/400V
wye out
Other sizes
are available for different voltages.
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TSi Power Book of
product specifications and white papers
To download the entire
"TSi
Power Book of Product Specifications and White Papers,"
right click
here,
and then in your dialog box > click on 'Save Link As' or
similar, then > navigate to a desired folder and then > click on 'Save'.
Please note: The book is a 252 page, 14 megabyte Adobe Acrobat .pdf file, so it may take a while to download on a
dial-up line. The book is designed with 'bookmarks' tied to it's Table of
Contents, and the 'bookmarks' also appear on the left side as you open the pdf.
So for browsing the products and spec sheets, the book is actually quite a
fast look-up resource once you have it on your desktop. |
TSi Power is also a custom
(bespoke in the UK) low-impedance isolation transformer
manufacturer.
For your OEM or special applications, please call us.
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