Driving America's waterways
Robicon W-Series drives for municipal water & wastewater applications
For more than a quarter century W-Series variable frequency drives, built on Robicon field-proven expertise, have reliably served the drive needs of U.S. municipal water and wastewater utilities - representing the largest installed base among all drives currently in service within the industry . And with the integration of SINAMICS technology and features backed by Siemens' total solution and system capabilities, the best has become even better.
Standard features of Robicon W water industry drive systems
NEMA 1 enclosure, with blowers (optional NEMA 12 ventilated with air filters)
UL listing per UL508C (UL file E319311)
Short circuit current rating (SCCR) 65 kA
Circuit breaker disconnect with flange mount operator handle, mechanically interlocked with the enclosure door
Door mounted operator panel mounted for easy start-up and operation
The Robicon W120 is a standard 6-pulse drive available in wall mount and floor standing enclosures. It can be equipped with a wide variety of pre-engineered and custom options.
Seismic certification is available for installation in essential facilities - see Seismic Certification tab for more details.
Robicon W120 specifications
Clean power drives include an 18-pulse rectifier front end combined with a patented phase-shifting autotransformer.
IEEE sets minimum harmonic distortion limits for voltage and current. With the W Series Clean Power unit's multi-pulse, phase-shifting design, the Clean Power models more than meet distortion limits for the 5th, 7th, 11th and 13th harmonics in accordance with Table 10.3 of IEEE 519-1992
Available seismic certification for use in essential facilities
Benefits of Clean Power Drives
No line side harmonic disturbances
Elimination of external power factor correction devices and their associated costs
Avoidance of utility penalties for poor power factor
Improved voltage regulation
Avoidance of overloading feeders, breakers and transformers with reactive power
Compatible with operation on generator supplies and weak power systems. Unlike harmonic filters, Clean Power 18-pulse drives do not present capacitive loads that cause voltage increases at low loads, a frequent cause of problems on weak or emergency supplies
Low loss operation especially at partial loads. Alternative technologies that use front ends with active switching devices (IGBTs) have high switching losses at all loads - unavoidable when regenerative operation is required but not desirable on pump and fan drives whose main purpose is energy savings
Robicon W120CP / W150CP specifications
More technical information on Robicon W-Series drives
Just get in touch
Most enclosed drives are custom-engineered, so attempting to include all technical data here would be quite a challenge. Contacting a Siemens drives specialist will be your quickest route to getting the information you need.
