PHILADELPHIA GEAR ACQUIRES NEW
TEST STAND AT DELAWARE
The test stand, ideal for high-speed/high-torque
gearbox units, allows Philadelphia Gear to provide nationwide gearbox
August 13, 2004 (Norristown, PA)
Philadelphia Gear Corporation, a full-service provider of
gearing and power transmission solutions, announces the availability
of a new 1500 HP test stand at its Eastern Region Service center
in New Castle, Delaware. The acquisition and availability of the
new test stand extends Philadelphia Gear's existing diagnostic testing
capabilities for high-speed and high-torque gearbox units to the
east coast (Philadelphia Gear operates a similar test stand through
its Western Region Service Center in Lynwood, California).
The test stand, powered by a variable speed Philadelphia
Gear Synchrotorque® hydro-viscous clutch, allows Philadelphia
Gear personnel to run qualification testing on repaired gearboxes
reinstalling the units. The new test stand provides no-load
testing of gearboxes up to 60,000 HP and speeds of up to 120 percent
of the tested gearbox speed, as rated by the American Petroleum
Institute (API). The test stand's two-speed lubrication system is
capable of testing any gearbox with lubrication requirements up
to 400 gal/min. The stand's cooling tower can cool the equivalent
of 1500 HP.
"There are not many dedicated test stands
in the country that can handle this amount of power,"
comments Richard Chrzanowski, General Manager for Philadelphia
Gear's Eastern Region.
The new test stand allows Philadelphia Gear
to provide an important service in ensuring successful gearbox
repair and maintenance - a service in demand by many of its
customers. "The volume of testing at our Lynwood facility's
test stand certainly justified the investment we've made in
our Eastern Region Service Center," comments Jules DeBaecke
Vice President, Engineering for Philadelphia Gear.
DeBaecke continues, "The gearboxes we test
on these large stands are oftentimes the lifeblood of a plant.
Being able to provide testing on these larger gear units here
on the East Coast allows our customers to be on-site or close
by for the duration of the repair - we're saving time, money,
and anxiety on the part of our customers by eliminating cross
country shipping of units to be tested."
"Operating our new test stand is the equivalent
of slipping the clutch in a manual transmission car - we start
the motor unloaded, then we slowly engage the clutch until
we reach the required input speed of the gearbox," says
Chrzanowski. "This capability allows us to test a repaired
gearbox while simulating a range of real world operating and
load conditions - it's truly a unique capability."
The test stand is operated via a control center,
used to start, stop and monitor the Synchrotorque controller.
The control center has the ability to perform vibration analysis
(32 simultaneous points), as well as spectrum analysis (4
channels), and can provide waterfall plot data, to demonstrate
how vibration readings change as speed varies. Analyzing waterfall
plot data allows an operator to determine the cause of vibration
anomalies. In all, the control center provides up to 151 channels
of data, monitoring temperature, speed, torque and other operational
Prior to installing the test stand, Philadelphia
Gear had been using a 350HP variable speed drive, as well
as other miscellaneous equipment, to provide no-load spin
testing on repaired gear drives. The new stand gives Philadelphia
Gear the ability to spin larger gearboxes at higher speeds.
Chrzanowski notes, "The test stand is ideal
for testing larger high-speed units, including any gearbox
of a 10,000HP rating and above - load gearboxes for power
generation; large, high-speed compressor drives; units primarily
used in petrochemical production and power generation. With
the addition of the 1500HP stand, it's reasonable to believe
we can accommodate any spin test requirement for Delaware
Service Center served customer base"
The test facility is also appropriate for the
testing of low speed, high-torque gearboxes, as well as accessory
drives. The test stand can supply full-load testing, provided
there is sufficient horsepower to put load on the drive. In
addition, the test stand can be used to perform partial-load
testing on units, which are generally less stable at no-load
A founding member of the American Gear Manufacturers
Association (AGMA), Philadelphia Gear offers products and
services found in use worldwide; from conveyor gear drives
used in long wall coal mining operations, to emergency repair
services critical to the power generation industries. The
company serves thousands of customers across the globe from
its regional service and manufacturing facilities in New Castle,
DE; Birmingham, AL; Chicago, IL; Houston, TX; and Los Angeles,
CA. Philadelphia Gear is headquartered in Norristown, PA.
For more information on Philadelphia Gear, call
1-800-766-5120, fax 610-337-5637.