Robicon W-Series Drives

Manufacturer: Siemens Process Instrumentation and Analytics

Robicon W-Series Drives

For more than two decades 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. 

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

Robicon W120 - 1 to 200 HP, 6-Pulse Enclosed Drive

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.

Robicon W120CP and W150CP - 50 to 600 HP, 18-Pulse Clean Power Enclosed Drives

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


Seismic Certification

The Robicon W-Series range of variable frequency drives is designed specifically to meet the needs of infrastructure projects including the municipal water industry .All Robicon W-Series drives are now available with seismic certification per the following standards:

International Building Code (IBC 2012), for use in essential facilities in all regions of the USA. Please refer to the Certificate of Compliance for details 
> Watch a short video

Specialized Nuclear Facilities Testing (Robicon W120CP 18-pulse clean power drive rated at 125 HP, 460V)

Watch a short video

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