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Description
Page 2 of 2 The Department of Veterans Affairs, Great Lakes Acquisition Center (GLAC) is searching for vendors with the capabilities to provide maintenance and repair to the Variable Frequency Drive (VFD) system Maintenance Brief description: DESCRIPTION OF SERVICES The Contractor shall provide all labor, material, tools, management, travel, and equipment necessary for the maintenance and testing of the of the Variable Frequency Drive (VFD) systems located at the Clement J. Zablocki Medical Center, Milwaukee, WI 53295, as defined in the Statement of Work (SOW). GENERAL REQUIREMENTS Contactor shall provide, maintain, and test the VFD systems to include all drives on provided equipment list. When working on ABB equipment shall be performed by Contractor provided ABB Inc. certified technician; as well as certified technicians on all other equipment. Technicians shall be able to inspect, maintain, upgrade, replace/repair and to respond to any event of VFD failure in a as per Section 6 Response Times. PREVENTATIVE MAINTENANCE INSPECTION (PMI) PLAN The contractor shall develop a PMI plan that includes all of the following items: Visual Inspection & Cleaning Technicians shall perform a complete visual inspection and cleaning. Broken or damaged parts shall be replaced as necessary. Drives shall be inspected for at a minimum ambient temperature, dust, dirt, moisture, evidence of overheating, corrosion, integrity. Capacitors shall be checked for leakage. Conductors and parts shall be checked for proper insulation. Drives shall be cleaned using vacuum or compressed air as required. Filters shall be cleaned or replaced. Power connections shall be re-torqued to manufacturer s specifications. Contractor shall check circulating fans for signs of bearing failure or foreign objects internally. Cooling Fans shall be energized and tested for airflow. Heat sinks and air passages shall be inspected to detect blockage or broken/cracked components. Fans shall be replaced as necessary. Air conditioners shall be checked for proper cooling. Line Reactors, DC Link Reactors, Isolation Transformers Reactors and transformers are inspected for wear, insulation breakdown, connections, and proper conduction. Transformer voltages shall be checked for proper amplitude and balance. Inspect DC bus capacitors for bulging and leakage. Operator Interface The keypad or other operator interface shall be checked for display, keypad, proper communication, and fault history log. Contractor shall take action, as indicated, for fault indications. Power-On Test With power applied to the drive, the DC bus shall be checked for correct voltages and currents. Incoming AC voltages shall be checked for proper amplitude and balance. The DC bus shall be checked for voltage and excessive ripple voltage. Output voltages shall be checked for amplitude and balance. All values shall be compared with previous results to assess the rate of deterioration. Contractor Technicians shall look for evidence of unus…
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