Download KRIWAN presents new solutions for current and

KRIWAN at AHR Expo 2017
Vigilant protection against power grid problems
KRIWAN presents new solutions for current and phase monitoring
Increased current consumption, incorrect phase sequences, differing supply voltage –
the causes of malfunctions and resulting damage in electrical systems are often down to
these factors. KRIWAN is presenting new solutions that facilitate effective current and
phase monitoring, and provide all electrically driven components with reliable protection
against network problems in compact units such as chillers, condensing units, and
refrigeration racks.
In many applications, such as HVAC/R, as well as process technology, the systems
used are pre-mounted on a frame or panel. The advantages of this are standardized
manufacture in a factory, easier transportation of complete units to the point of use, and
faster commissioning. These systems are connected to the same supply voltage as the
compressors, pumps, valves, and heat exchangers that they use. In order to protect
against damage caused by problems with the supply network, KRIWAN has developed
a simple, compact, and extremely reliable plug-and-play solution for the entire system.
Phase and current under control
The KRIWAN Voltage Monitor INT69 UY Diagnose is used in applications in which the
monitored system may malfunction or be damaged as a result of excessive voltages or
incorrect phase sequences. The voltage monitor checks whether the supply voltage is in
the permitted voltage range and the correct phase sequence is present.
If the maximum or minimum voltage thresholds are breached, or a phase error is
detected, the INT69 UY switches off the system.
The KRIWAN Motor Protector INT69 I2 Diagnose is used in applications in which the
monitored system may malfunction or be damaged as a result of excessively high
currents. The motor protection unit INT69 I2 Diagnose checks whether the current
drawn by the motor is within the permitted limits. If an error is detected, it switches the
system off.
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Through an additional input, any PTC sensors used for temperature monitoring can be
evaluated. When the nominal response temperature (NRT) is reached, the system is
switched off immediately.
The protection units are also equipped with an integrated nonvolatile and tamper-proof
operating data and error memory in order to be able to document real usage conditions,
including problems occurring with the supply network.
Available images
The following images are supplied as printable picture.
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Image source: KRIWAN
KRIWAN – INT69UY- A new solution for precise phase
monitoring
Available images
The following images are supplied as printable picture.
Image source: KRIWAN
KRIWAN – INT69I2 + INT185 – A new solution for precise
current monitoring
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About KRIWAN Industrie-Elektronik GmbH & Kriwan Americas
KRIWAN has specialized in protecting industrial machines and systems from overload
and downtime for nearly 50 years. Today, KRIWAN is the world market leader in
electronics and sensor technology for refrigerant compressors, temperature sensors for
electrical motors, and industrial weather measuring technology. KRIWAN is a globally
active company, with more than 200 employees in Forchtenberg as well as subsidiaries
around the globe.
Since 2007, Kriwan Americas has provided technical sales, service and support to
companies throughout North and South America.
Since KRIWAN's foundation in 1968, this independent, family-owned company has
been a pioneer and innovation leader, continually developing new ideas and translating
them into cost-efficient, tailor-made products and systems for its customers. KRIWAN
has operated a testing facility in Forchtenberg since 1997, which can be used by
companies from all over the world to test their products and new developments.
Further information
Kriwan Americas
John Gordon
General Manager
470 Windsor Park Dr.
Dayton, OH 45459
Tel.: (937) 432-9249
E-mail: [email protected]
www.kriwan.com
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