GE Industrial Solutions Tranquell Series Low and Medium - Manual (Page 4)

2020005003 (12/09) Page 4 of 18
PRODUCT DESCRIPTION:
GE TRANQUELL Series Type 2 Surge Protective Devices (formerly called TVSS), are for installation
on low voltage electrical distribution systems. GE SPDs are designed to protect electrical
equipment loads against the damaging effects of transient voltages that can be induced or
generated as a result of remote lightning, power equipment switching or high frequency
disturbances.
The TRANQUELL Series SPD incorporate Metal Oxide Varistor (MOV) technology to achieve
superior transient suppression performance. Integral to the SPD is a patented thermal fusing
system that offers SPD circuit interruption in the event of a limited current abnormal overvoltage
condition. Other standard features include protection status indicating lights and form C alarm
contacts for remote monitoring. TME models also include surge rated fuses and built in EMI
filtering.
The GE Tranquell SPD units described in this manual are enclosed, wall mounted styles that are
UL/cUL Listed, conforming to UL 1283 and UL 1449 3 rd Edition where applicable. All published
ratings are in accordance with ANSI / IEEE C62.41.1-2002, C62.41.2-2002 and NEMA LS1-1992
(R2000) recommended guidelines.
Model covered by this manual are:
GE Tranquell TLE and TME model types ending with the part number suffix WM, WMF, or WM4
(Examples: TLE120Y050WM, TME277Y100WMF, TLE240D025WM4)
APPLICATION GUIDELINES:
Determining the surge protection to be provided in a facility or for a particular system or
equipment can be a complex task that should be addressed as early as possible. This is typically
when a new facility is constructed or sensitive electronic equipment has been installed. The
following guidelines are offered for application assistance:
 Prior to installing any SPD, 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.
 Utilize the personnel from your local utility, your engineering department, GE application or
service engineering, or a professional consulting engineering firm for technical guidance or
troubleshooting.
 Understand your system, and the capabilities and limitations of SPD and other power
conditioning equipment.
 Select the proper GE Tranquell Series SPD unit for your system voltage, configuration, and
the anticipated surge environment. Some of the key parameters for selection are defined
below:
 SPD T YPE
The SPDs covered in this document are rated and marked accordingly for use on Type 2
applications. Type 2 SPDs can be installed only on the load side of the electrical distribution
system’s main breaker or fuse.