Electrical Testing

3-Year Electrical Testing and Repair Contract Performance Work Statement (PWS) General Requirements: Contractor shall furnish all supplies, materials, equipment, personnel/labor and technical supervision required to perform inspections, repairs, testing, cleaning, calibrations and adjustments on the electrical power distribution system and associated equipment at the Hampton Veterans Affairs Medical Center within the allotted time frame of this contract. This is a 4160 volt primary system that includes various secondary voltages and both emergency and normal power sources. A comprehensive list of equipment is included in this contract as well as a dollar amount to be set aside for repairs. All inspections and testing procedures must meet the criteria of the original equipment manufacturer along with the latest editions of the following codes, standards and specifications listed: ANSI, IEEE, ICEA, NETA, NEMA, NFPA, JCAHO and VA regulations. The contractor shall be responsible for supplying all portable power required to power up any and all test equipment necessary throughout these tests. The use of normal or emergency building power will not be allowed. The contractor shall be responsible for securing all manufacturers information, curves, data, procedures and any other information necessary to conduct specific tests on equipment and systems. Prior to beginning field-testing, the testing organization shall submit test procedures and a detailed test schedule to the Electrical Supervisor for each item of equipment to be field-tested. No testing is to be performed until after the test procedures and schedules have been approved. The contractor shall be responsible for all coordination between Dominion Virginia Power (if applicable), station supervisory personnel and test personnel for scheduling shut-downs, system tests and tests on system components. The V.A Medical Center Electrical Staff will be responsible for conducting the actual scheduled outages and reenergizing of circuits and components on V.A. premises and V.A. owned equipment only. Lockout/Tagout of this equipment will be performed jointly between the V. A. Medical Center Electricians and the Contractor. The contractor will be responsible for removal and replacement of any and all breakers needing to be tested. All breakers being removed will be properly reinstalled. Any and all conductors removed from a breaker will be properly terminated back to that breaker and any and all lugs will be properly torqued to manufacturers specifications. Testing shall commence and be completed within nine (9) consecutive days, beginning on a Saturday and ending on the following Sunday. The specific dates shall be coordinated with the COTR. All outages shall be scheduled with the COTR two weeks in advance of testing start date. Testing dates may change due to inclement weather, however, the COTR shall first be notified and approve any changes necessary. Contractor shall anticipate all work to be done after normal working hours. Outages will be scheduled at night between the hours of 5:00 p.m. and midnight and between the hours of 7:00 am and 5:00 p.m. on weekends. However the Contractor should be prepared to work longer hours should problems develop to assure restoration of power. Daytime hours, during the week, may be approved under certain circumstances if there is no impact to building occupants. This would be a rare instance, thus Contractor should anticipate overtime hours for all contract requirements. Equipment Repairs: Minor repairs shall include but not be limited to such items as loose bolts, loose or broken lugs, wiring terminals, heaters, malfunctioning targets, dirty/high resistance connections, etc and shall be corrected on site during testing if possible. Repair or replacement of larger items such as breakers shall also be performed during this outage if possible. However if parts are not readily available, these items will be repaired or replaced under a separate smaller outage and will be scheduled after parts or components are available. Contractor shall set aside a line item not to exceed $50,000 for repair or replacement parts with this contract. All repairs shall be invoiced under this line item at the conclusion of the contract. This amount is to be used for bidding purposes. However a materials breakdown will be required with the final invoice and Contractor shall be paid actual costs with appropriate mark up’s up to $50,000 for parts. Contractor is not to exceed this amount without prior written approval of the Contracting Officer. Minimum Equipment Test Requirements: 5 KV AIR CIRCUIT BREAKERS 1. The breakers will be removed from their compartments. The compartments shall be cleaned and inspected. Shutters shall be cleaned, inspected, and tested for proper operation. The racking mechanisms shall also be cleaned, lubricated and tested for proper operation. 2. All cable termination’s, both primary and secondary, shall he checked for signs of overheating, proper tightness and support. 3. All exposed bus connections shall be checked for signs of overheating and for proper tightness. 4. The arc chutes will be removed, cleaned and inspected. 5. The entire breaker and the mechanism will be inspected. 6. The entire operating mechanism will be thoroughly cleaned, lubricated and exercised. 7. All of the interior components of the circuit breaker will be thoroughly cleaned. 8. The contacts and current carrying assemblies will be inspected for burning, pitting, arcing, worn fingers, garter springs etc. 9. The contacts will be cleaned and anti-oxidant grease will be applied to the breaker’s main contacts. 10. The breaker contact resistance will be measured and recorded. 11. An insulation resistance test will be performed and results recorded. 12. The breaker will then be closed manually to ensure proper closing and trip operations. 13. Any and all interlocks will be checked and proper operation will be verified. 14. The breaker will be electrically operated when test stands are available, or the breaker will be operated from its cubicle, if the system allows. 15. All indicating devices such as lights, flags, switches etc. shall be tested for proper operation. Any that are not operating properly shall be repaired at that time if possible. 16. All heat strips throughout the enclosure shall be made operational, by repair or replacement, prior to completion of inspection. ENCLOSED AIR BREAK SWITCHES (MEDIUM VOLTAGE) 1. After shutdown, the entire switch mechanism will be cleaned and inspected. 2. The switch contacts will be checked for proper alignment. Anti-oxidant grease will be applied to the main contacts. 3. The switch’s arcing contacts will be checked for the proper opening sequence relative to the main contacts. 4. The switch’s operating mechanism will be inspected for wear and proper operation. The entire mechanism will be cleaned and lubricated. All interlocks will be tested and proper operation will be verified. 5. Fuses will be inspected; size and type will be recorded. 6. All phase isolation barriers will be cleaned, and the barriers will be checked for contamination and corona damage. 7. All insulators will be cleaned and visually inspected for cracks and chips. 8. All exposed bus and cable connections will be checked for proper tightness and for evidence of overheating, burning or tracking. 9. All lightning arrestors will be cleaned and inspected for broken or damaged porcelain and subjected to an insulation resistance test. Results shall be recorded. 10. All ground connections will be inspected and repaired if found to be inadequate. 11. Contact resistance and insulation resistance tests will be performed, where possible, and the results recorded. 12. All heat strips throughout the enclosure shall be made operational, by repair or replacement, prior to completion of inspection. OIL-FILLED TRANSFORMERS 1. The transformers will be inspected for leaks, poor seals and or gaskets, and for proper oil levels. 2. The transformer tank and its cooling fins will be inspected for rust, chipped paint, dents, and proper connection to ground. 3. All of the bushings will be cleaned, inspected for cracks and or chips. proper tightness. and evidence of overheating. 4. All gauges and alarm devices will he inspected, recorded and reset where applicable. 5. Insulation resistance tests of each transformer winding will he performed, where possible and the results recorded. 6. Turns ratio test shall be performed and recordings documented. 7. The oil will be sampled and tested in accordance with ASTM procedures. All sampling devices used will be new, clean and sealed with thread sealant. Drip pans shall be installed under all the valves prior to any oil removal. The contractor will clean up any and all oil lost during sampling. DRY-TYPE TRANSFORMERS 1. Check enclosure for dents, loose bolts, proper ventilation, anchoring and grounding. 2. The inside of the transformer shall be cleaned and all electrical terminations will be checked for signs of overheating and proper tightness. 3. Insulation resistance tests of each transformer winding will be performed, where possible and the results recorded. 4. Turns ratio test shall be performed and recordings documented. SWITCHGEAR AND STRUCTURE 1. After power shutdown, the entire switchgear interior will be thoroughly cleaned. 2. Exposed bus connections will be checked for proper tightness. 3. All of the bus insulators will be thoroughly cleaned and visually inspected for cracks and chips. 4. All control switches, auxiliary relays, and devices will be cleaned, lubricated (if applicable), and checked for proper operation. 5. All disconnect switches will be cleaned, lubricated, adjusted and an anti-oxidant grease applied to the contacts. 6. The lightning arrestors will be cleaned and subjected to an insulation resistance test. Results will be recorded. 7. An insulating resistance test of the bus will be performed. Results will be recorded. LOW VOLTAGE AIR CIRCUIT BREAKERS 1. Each breaker will have its inspection covers removed and the breaker will be thoroughly cleaned. 2. All contact surfaces will be cleaned to assure maximum conductance. 3. Anti-oxidant grease will be applied to the breaker’s main contacts. 4. Mechanisms will be checked and lubricated. The mechanical operation will be verified. 5. A current equal to 90 and 110 percent of the breaker’s trip coil setting will be applied to verify proper pick-up of the tripping mechanism. 6. Primary injection testing shall be performed in order to verify that all long-time, short time, instantaneous and ground fault set points are properly set. Those that are not shall be properly adjusted and retested. Units will be tested by passing multiples of their ratings through each phase of the breaker. The resultant trip-times will be recorded. 7. Contact resistance will be measured and contacts will be adjusted, where possible, for maximum surface contact and pressure. Value of contact resistance tests will be recorded. 8. An insulation resistance test will be performed from each pole to the other two poles and to ground, and the values recorded. 9. On draw out breakers, the breaker carriage and racking mechanism will be cleaned and lubricated. OIL DISCONNECT SWITCHES 1. The switch mechanism will be opened where applicable. 2. The switch contacts will he inspected and cleaned where applicable. 3. The switch’s operating mechanism will he visually and manually inspected for wear, operation, binding and then cleaned and lubricated. 4. The switch’s insulating fluid will be sampled. tested and fluid levels returned to normal. 5. The complete unit will then be reassembled and tested for proper operation. 6. The contractor will clean up any and all oil lost during sampling. 7. Insulation resistance tests will be performed where accessible and results recorded. MOLDED CASE CIRCUIT BREAKERS (ELECTRICAL TEST) 1. Each molded case circuit breaker will be inspected in its enclosure for proper installation. 2. The covers of breakers, which are removable, will be removed. 3. The interior and exterior of the breaker will then be thoroughly cleaned. 4. The breaker will be inspected for burning, overheating, wear, proper alignment and general condition. 5. Primary injection testing shall be performed in order to verify that all of the manufacturers curve characteristics; such as long time pick-up and delay, short time pick-up and delay, ground fault pickup and delay and instantaneous pick-up points, are all properly set. Those that are not shall be properly adjusted and retested. 6. Contact resistance will be measured and the results recorded. 7. An insulation resistance test will be performed and the results recorded. 8. The breakers with instantaneous trip units, with a cable connection capability, will be tested. 9. The breaker’s trip time will then be compared to the manufacturer’s characteristic curve. MOLDED CASE CIRCUIT BREAKERS (MECHANICAL TESTS) 1. The molded case circuit breakers will be inspected in their enclosures for proper installation. 2. The covers of breakers, which are removable, will be removed. 3. The interior and exterior of the breaker will then be thoroughly cleaned. The breaker will be inspected for burning, overheating, wear, proper alignment and general condition. 4. The breaker will be mechanically exercised and lubricated. 5. Mechanically trip all circuit breakers equipped with push to test capabilities 6. Where possible, contact and insulation resistance will be measured. Results will be recorded. PROTECTIVE RELAYS 1. Relays in draw-out cases will be removed from the case and thoroughly inspected, cleaned and tested. 2. The disks, target rockers and similar moving parts will be inspected. 3. The interiors of draw-out cases will be cleaned, the covers cleaned and the gaskets inspected. 4. The relays will then be electrically tested with current or voltage as required in accordance with the manufacturer’s procedures. Relays with characteristic curves will be tested at three tap or pick-up multiples (of found settings). 5. The targets and seal-in units of all relays will be tested to assure proper operation. 6. The relay circuit will be tested to assure that the relay will respond to primary voltages or currents as appropriate. 7. Test tripping of circuit breakers will be performed where an outage can be arranged. INSTRUMENTATION CALIBRATION 1. Examine all devices for damage and wire connection tightness. 2. Perform a calibration test on all meters using a standard and power supply to determine accuracy at each cardinal point. 3. On meters supplied with transducers, the calibration will be performed from the transducer. 4. All instrument multipliers will be verified. 5. Meter selector switches will be inspected for proper application and operation. WATT HOUR METER CALIBRATION 1. Visual and mechanical inspection: Examine all devices for mechanical or electrical damage and wire connection tightness. Check conditions of meter face and face gaskets. 2. Electrical tests: Check calibration of all meters at five points using full scale test instruments. Calibrate watt-hour meters to one-half percent (0.5%). Verify all instrument multipliers. Meter selector switches will be inspected for proper application and operation. TRANSFORMER & CIRCUIT BREAKER INSULATING OIL The insulating fluids will be sampled and tested from each oil-filled device. Sample containers will be new, sealed and opened only immediately prior to filling. Sampling of oils will be accomplished in accordance with ASTM D-923 and sampling of askarels will be done in accordance with D-1809. The oil samples will be returned to the laboratory and tested for the following: TEST DESIGNATION TEST METHOD 1. Color/Visual ASTM Dl 500-D2 1 29/D 1524 2. Dielectric Breakdown ASTM D877 3. Neutralization Number ASTM D974 4. Specific Gravity ASTM D1298 5. Moisture Content ASTM D1533 6. Dissolved Gas in Oil Analysis (500k VA and up) Required Qualifications of Testing Organization and Personnel: The testing firm shall be an independent testing organization, which can function as an unbiased testing authority, professionally independent of any manufacturer, or supplier of equipment or systems evaluated by the testing firm. The testing firm shall meet the criteria for full membership or be a full member company of the InterNational Electrical Testing Association. Proof of this membership is to be included with the proposal package. The testing organization that is employed under this contract shall have been regularly engaged in the testing of electrical materials, devices, installations and systems for a minimum of five years. Proof of this experience is to be included with the proposal package. All work under this contract shall be performed under the supervision of the testing organization’s Professional Engineer who will be available to discuss any and all procedures used to test, survey, report and service the equipment required under this contract. Testing, inspection, calibration and adjustments shall be performed by Field Engineers/Technicians certified by the National Institue for Certification in Engineering Technologies (NICET) and/or the International Electrical Testing Association (NETA) and have a minimum of five years of experience inspecting, testing and calibrating electrical distribution equipment, systems and devices. Proof of experience is to be included with the proposal package. The testing organization shall only utilize field engineers and technicians who are regularly employed by the firm or testing service. The testing organization shall submit the names, certification numbers and resumes of the Registered Professional Engineer, the lead Field Engineer/Technician and all other Field Engineers/Technicians who will be performing tests and inspections under this contract. This information is to be included with the proposal package. Test assistants and apprentices may be assigned to the project as assistants to certified Engineers/Technicians at a ratio not to exceed one certified Engineer/Technician to one non-certified assistant or apprentice. The testing organization shall have a calibration program, which assures that all test instruments are calibrated in accordance with the International Electrical Testing Association (NETA). The accuracy shall be directly traceable to the National Institute of Standards and Technology (NIST). Up to date calibration labels shall be visible on all the test equipment or that equipment will not be allowed to be used under this contract. Equipment List: The following equipment needs to be added or removed for 2023: 148 HE panel (add) New MRI (add) OR HE Panel (add) Building 159 (remve breakers but keep transformer) Building 152 (remove) will need to add new gear associated with building 44 B1dg# Equipment Type Quantity Rating 11O/11OA Switchgear Structure Medium Voltage Switches 2 Medium Voltage Fuse Panels 2 Transformer 500 KVA (pad mount) Transformer 1000 KVA (pad mount) 1 Transformer 1500 KVA (pad mount) 1 11OA ED Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case w/ Micrologic (main) 1 1000 Amp Molded Case w/ Micrologic 1 450 Amp Molded Case 1 400 Amp Molded Case 3 225 Amp Molded Case 1 200 Amp Molded Case 1 175 Amp Molded Case 3 150 Amp Molded Case 3 110 Amp Molded Case 1 100 Amp Molded Case 1 70 Amp Transformer 300 KVA (dry type) 1 ER Switchboard Square D Molded Case w/ Micrologic 1 1000 Amp Molded Case 1 600 Amp Molded Case 2 400 Amp Molded Case 1 300 Amp Molded Case 2 225 Amp Molded Case 1 200 Amp Molded Case 2 150 Amp Molded Case w/Micrologic 1 150 Amp Molded Case w/Micrologic 4 110 Amp Molded Cade w/Micrologic 1 600 Amp MPD1 (one) Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Rack In Breaker (main) 1 2000 Amp Molded Case w/Micrologic 1 1000 Amp Molded Case w/Micrologic 3 300 Amp Molded Case w/Micrologic 1 250 Amp Molded Case w/Micrologic 1 225 Amp Molded Case w/Micrologic 1 200 Amp Molded Case w/Micrologic 14 150 Amp Molded Case w/Micrologic 2 125 Amp Molded Case w/Micrologic 4 100 Amp MPD2 (two) Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Rack In Breaker (main) 1 4000 Amp Molded Case w/Micrologic 6 400 Amp Molded Case w/Micrologic 1 225 Amp Molded Case w/Micrologic 3 200 Amp Molded Case w/Micrologic 12 150 Amp Molded Case w/Micrologic 1 125 Amp Molded Case w/Micrologic 2 100 Amp 11OB Switchgear Structure Medium Voltage Switches 3 Medium Voltage Fuse Panels 3 Transformer 1000 KVA 3 Switchboard 1(one) G.E. Plug-ins Molded Case TQL 1 100 Amp Molded Case TQL 1 400 Amp Molded Case TQL 4 600 Amp Molded Case TQL 1 2000 Amp Molded Case TQL 1 1000 Amp Switchboard 2 (two) G.E. Plug-ins Molded Case TQL 4 600 Amp Molded Case TQL 2 800 Amp Molded Case TQL 1 2000 Amp Switchboard 3 (three) G.E. Plug-ins Molded Case TQL 2 225 Amp Molded Case TQL 2 300 Amp Molded Case TQL 4 400 Amp Molded Case TQL 1 600 Amp Molded Case TQL 1 2000 Amp Emergency Panel Board 1 (one) HE Molded Case TQL 2 250 Amp Molded Case TQL 3 600 Amp Molded Case TQL 2 800 Amp Molded Case TQL 1 1200 Amp 146 Switchgear Structure G.E. Load Interrupter Switch 1 Medium Voltage Fuse Panel 1 Transformer 1500 KVA 1 Switchboard G.E. AV-Line Volt Meter 1 Ammeter 1 Ground Break System 1 AKW Breaker (main) 1 2000 Amp Versatrip Breaker 1 600 Amp Versatrip Breaker 1 300 Amp Versatrip Breaker 1 150 Amp 116 Switchgear Structure Medium Voltage Switches 2 Medium Voltage Fuse Panels Transformer 500 KVA (pad mount) 1 Transformer 150 KVA (pad mount) 1 Switchboard Square D Voltmeter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 2000 Amp Molded Case 4 400 Amp Molded Case 2 225 Amp Molded Case 9 200 Amp Molded Case 3 150 Amp Molded Case 2 30 Amp 148 Switchgear Structure G.E. Load Interrupter Switch 1 Medium Voltage Fuse Panel 1 Transformer 1000 KVA (pad mount) 1 Switchboard G.E. AV-Line Voltmeter 1 KWH Meter 1 Ammeter 1 Power Break Breaker (main) 1 1200 Amp Power Break Breaker (auto transfer) 1 200 Amp Versatrip Breaker 3 600 Amp Versatrip Breaker 6 300 Amp Versatrip Breaker 1 400 Amp 129 Switchgear Structure Transformer 300KVA (pad mount) 1 Switchboard Square D Voltmeter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 1200 Amp Molded Case 3 400 Amp Molded Case 1 600 Amp Molded Case 1 300 Amp Molded Case 2 225 Amp Molded Case 1 150 Amp Molded Case 1 100 Amp 15 Switchgear Structure Medium Voltage Switches 1 Medium Voltage Fuse Panels 1 Transformer 300 KVA 1 Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 600Amp Molded Case 1 300 Amp Molded Case 1 225 Amp Molded Case 1 150 Amp Molded Case 2 100 Amp Molded Case 4 50 Amp 159 Switchgear Structure Transformer 150 KVA (pad mount) 1 Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 1200 Amp Molded Case 2 800 Amp Molded Case 2 225 Amp Molded Case 2 150 Amp Molded Case 1 100 Amp 151 Switchgear Structure Transformer 300 KVA (pad mount) 1 Switchboard Square D Voltmeter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 1000 Amp Molded Case 2 600 Amp Molded Case 2 225 Amp 152 Switchgear Structure Medium Voltage Switches 3 Medium Voltage Fuse Pane1 1 Transformer O KVA (pad mount) 1 Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 2000 Amp Molded Case 2 800 Amp Molded Case 3 400 Amp Molded Case 1 225 Amp Molded Case 3 200 Amp Molded Case 1 30 Amp 154 Switchgear Structure Transformer 750 KVA (pad mount) 1 Switchboard Arrow Hart Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case 1 800 Amp Molded Case 2 700 Amp Molded Case 1 600 Amp 155 Switchgear Structure Transformer 500 KVA (pad mount) 1 Switchboard Arrow Hart Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case 2 600 Amp 156 Switchgear Structure Transformer 750 KVA (pad mount) 1 Switchboard Square D Volt Meter 1 KWH Meter 1 Ammeter 1 Molded Case (main) 1 2000 Amp Molded Case 1 1000 Amp Molded Case 2 400 Amp Molded Case 1 350 Amp Molded Case 3 200 Amp Molded Case 2 60 Amp Molded Case 1 40 Amp Molded Case 1 30 Amp 158 Switchgear Structure Medium Voltage Switches 1 Medium Voltage Fuse Panels 1 135 Switchgear Structure Medium Voltage Switches 1 Medium Voltage Fuse Panels 1 Transformer 500 KVA (pad mount) 1 Switchboard Square D Molded Case (main) 1 800 Amp Molded Case 1 400 Amp Molded Case 1 300 Amp Molded Case 2 200 Amp Molded Case 1 100 Amp Molded Case 1 90 Amp Molded Case 2 40 Amp Molded Case 1 30 Amp Molded Case 1 15 Amp 137 Switchgear Structure Transformer 750 KVA (pad mount) 1 Switchboard ITE Voltmeter 2 KWH Meter 2 Ammeter 2 Rack In Breaker (main) 1 2500 Amp Rack In Breaker 3 800 Amp Rack In Breaker 4 400 Amp Rack In Breaker 10 225 Amp Rack In Breaker 1 200 Amp Rack In Breaker 1 40 Amp 139 Switchgear Structure Medium Voltage Vault 1 Rack In Breaker (ITE 5kV) 10 Time Overcurrent Relays 32 Voltmeter 10 Ammeter 10 Control and Instrument Switches 9 144 Switchgear Structure Molded Case 1 800 Amp Molded Case 1 400 Amp 113 Switchgear Structure (Eaton) Molded Case Breaker 7 225 Amp Molded Case Breaker 1 600 Amp Molded Case Breaker 2 400 Amp Molded Case Breaker 3 200 Amp Transformer 112.5KVA (pad mounted) 1 Transformer 30KVA (suspended) 2 Transformer 75KVA (suspended) 1 Transformer 15KVA (suspended) 1 Formal Reports: The testing organization shall submit three copies of the Comprehensive Inspection and Testing report (through the Prime Contractor if applicable) to the COTR within 30 calendar days following the conclusion of testing. The report shall be itemized by building and shall include, at a minimum, complete nameplate data, age, maximum loading in amperes (where applicable), and the condition as found and as modified for each piece of equipment and device tested. Notification in writing shall be submitted immediately to the COTR upon completion of testing for any equipment or component deemed to be in a critical state including recommendations for corrective action. A Registered Professional Engineer shall make certification.