GE Industrial Solutions Tranquell Series - Manual (Page 3)

Installation Instructions
Pro-Stock Panelboards with TRANQUELL  Medium Exposure TVSS
2020000903 (10/04) Page 3 of 9
THE EQUIPMENT COVERED BY
THESE INSTRUCTIONS SHOULD BE
INSTALLED AND SERVICED ONLY
BY COMPETENT PERSONNEL
UTILIZING PROPER SAFETY
PRACTICES AND PROCEDURES.
THESE INSTRUCTIONS ARE
WRITTEN FOR SUCH PERSONNEL
AND ARE NOT INTENDED AS A
SUBSTITUTE FOR ADEQUATE
TRAINING AND EXPERIENCE IN
SAFE PROCEDURES FOR THIS TYPE
OF EQUIPMENT.
PRODUCT DESCRIPTION:
GE TRANQUELL TVSS models are
Transient Voltage Surge Suppressors
(TVSS), which provide metal oxide varistor
protection in each mode, combined with
thermal fuses, surge-rated fuses, indicating
lights, an audible alarm with test and disable
features, Form C contacts for remote
monitoring, surge counter, built in EMI
filtering. The units described in this manual
are intended solely for installations in GE
Pro-Stock Panels installed on low voltage
electrical distribution systems. The TVSS is
UL and cUL Listed E108159, conforming to
UL standards 1283 and 1449 Second
Edition, August 15, 1996. All ratings are in
accordance with ANSI / IEEE C62.41-1991
and
NEMA LS1-1992 recommended
practices.
APPLICATION GUIDELINES:
Determining the surge protection to be
provided in a facility or for a particular
system or equipment can be a complex
problem which should be addressed as
early as possible, such as when a facility is
constructed or sensitive equipment is
installed. The following guidelines are
offered for application assistance.
1. Ensure that your facility electric supply
system is properly installed and
connected in accordance with all
applicable national and local codes and
safety procedures. All equipment and
systems
should be installed in
accordance with manufacturer
’
s
instructions.
2. Utilize the personnel from your local
utility, your engineering department, GE
application or service engineering, or a
competent consulting engineering firm
for
technical guidance or
troubleshooting.
3. Understand your system, and the
capabilities and limitations of surge
protectors and other power conditioning
equipment.
4. Select the proper TRANQUELL Medium
or High Exposure Series unit for your
system voltage, configuration, and the
anticipated surge environment.
MCOV (Maximum Continuous
Operating Voltage)
This value defines the maximum line-to-
line or line-to-neutral continuous voltage
to be applied to the protector. MCOV
values for Tranquell Series TVSS are
set at 115% of nominal system voltage.
For 120-volt systems, the MCOV is
125%. If sustained voltage could
exceed MCOV, or if any unusually high
power frequencies or Temporary Over
Voltages (TOV) are anticipated, contact
your GE Sales Engineer for assistance.
Configuration
Protectors are available for single phase
with neutral and ground, for three-phase
wye with neutral and ground, or for
three-phase delta with ground. (See
figure 1)
Connections
Where applicable, it is important to
minimize lead lengths to the TVSS for
optimum protection. Larger wire sizes