put
THE" P U S H " I N T OWORLD'SBIGGEST HIGH-PRESSURE
G- Ε Close-Coupled,
High-Speed Motors
Synchronous
-E Oireci Connected Low-Speed Synchronous Aiotors
COMPRESSOR
In one of the synthetic ammonia plants of the Hercules Powder Company, you will find the six biggest, high-pressure com pressors ever made. Every minute, each unit takes a boxcarful of nitrogen and hydrogen i n and passes it through seven stages of compression. The gas is dis charged at 15,000 lbs per sq in. — greater than the pressure of ocean water at its deepest level. As with any continuous chemical proc ess, these compressors are called on to give long, trouble-free service. Frequent outages for repairs would create heavy material and labor losses. Thus, only a drive motor with unusual strength and stamina could be used. G-E synchronous motors meet these stiff requirements for two very good reasons. First, the motors have been correctly engineered to dovetail with the specific characteristics of the compressors. By providing the proper amount of fly wheel effect, any pulsations i n the recipro cating compressor which might affect
the motor and the power supply line are smoothed out. Second, G-E synchronous motors are highly efficient. They make possible additional worthwhile power savings through p o w e r factor i m p r o v e m e n t . D i r e c t - c o n n e c t e d t o the d r i v e n machines, they save valuable plant space in addition to eliminating expense and maincenanceof mechanical transmission. For over 50 year G.E. has been supply ing synchronous mocor drives for com pressors rated from 1 5 lbs to 15,000 lbs. Important to the compressor user is the close cooperation that exists between com pressor manufacturers and G.E., resulting in complete co-ordination, engineeringwise, between compressor and drive. One sure way to assure yourself of smooth per formance and operating continuity from your next compressor is to specify a G-E synchronous motor drive. Apparatus Department,
