Neutral Grounding Resistor
When you choose Solar Turbines,
you get much more than our primary
products. We can also provide a
variety of balance of plant equipment
to deliver just the right energy system
to fulfill your complete energy needs.
Our experts will specify just the right
configuration, pre-engineered to match
your requirements, to help maximize
your energy efficiency and lower your
operating costs.
As part of this balance of plant
equipment, Solar offers a neutral
grounding resistor designed to ground
the generator neutral for one Solar®
gas turbine.
The neutral grounding resistor is
complete with edge wound stainless
steel, is L-N voltage rated, single
phase, with a 10 second rating. A bar
type ground fault current transformer
is also installed in the assembly. One
side of the current transformer is
connected to the resistor assembly,
while the other side is tagged for a
generator neutral connection. The
current transformer secondary is wired
to a field accessible NEMA 4X junction
box and terminated on a shorting
terminal block.
The assembly is an outdoor NEMA 3R
type, complete with load resistor,
interconnect terminals, cable
connections, and safety enclosure.
Neutral Ground Resistor Assembly
Field Accessible NEMA 4X Junction Box
Applicable Standards
• Current NEMA, ANSI and IEEE
certifications
Documentation and Testing
• Approval Drawings
– 2 sets, B size (11"x17")
• Record Drawings
– 2 sets, B size (11"x17")
• As-Shipped Drawings
– 1 set per manual, B size (11"x17")
• Solar project number and name
to be included on the drawings
• Plan and elevation, including
customer title information
• Connection and accessories diagram
Solar Turbines Incorporated
P.O. Box 85376 MZ SP3-Q
San Diego, CA 92186-5376 U.S.A.
Caterpillar is a trademark of Caterpillar Inc.
Solar is a trademark of Solar Turbines Incorporated.
Specifications subject to change without notice. Printed in U.S.A.
© 2004 Solar Turbines Incorporated. All rights reserved.
DSBOPNGR/804/EO
Resistors
Ground Fault Current Transformer
• Bill of materials
• Solar does not witness functional
tests of the completed grounding
equipment at the vendor’s facility
• Test certificates are supplied
with the equipment for test
verification
• Testing is to IEEE standards, as
well as inspecting the equipment
for conformity to the drawings and
specifications
Notes
• Classified as loose ship equipment
• Installation and commissioning
services are not included but
can be provided as optional
pricing if required
• Solidly grounding medium voltage
equipment is not recommended by
Solar, NEMA, or IEEE. Reactance
Grounding, while an option, is not
noted in this document
FOR MORE INFORMATION
Telephone: (+1) 619-544-5352
Telefax: (+1) 858-694-6715
E-mail: powergen@solarturbines.com
Internet: www.solarturbines.com