Agenda Packets - 1984/03/26 - Laserfiche WebLink

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(ItC -fn �- ' MEMO TO: Clerk -Administrator and City Council FROM: Director of Public Works/Community Development DATE: March 27, 1984 SUBJECT: MUNICIPAL WATER SYSTEM ELECTRICAL ANALYSIS The subject report by Toltz, King, Duvall, Anderson and Associates,. Inc. dated March 19, 1984 indicates several problem areas: 1. Short Circuit - The small circuit breakers are not adequately rated in well Nos. 1, 3, 4, 5, 6 dnd the booster station. This problem is a safety hazard and a technical Code violation. 2. Grounding - Well No. 1 grounding system should be cleaned and reconnected and a new driven grounding rod installed. The system ground connection should be secured and bonded at Well Nos. 3, 4 and the booster station as soon as possible. Bill Hanson and Bill Hanggi have indicated to me that they can do this work. 3. Power Factor Correction - A power factor correction should be installed on the motor circuits for Well Nos. 1, 3, 4 and the booster station. This is necessary because applicable electric rates include a penalty for a power factor below 90 percent. The pay back period is approximately 2 years for the well pump motor capacitors. The pay back is approximately 4 years for the booster pump motors due to alternating operation. Aluminum (Al) Wire - The aluminum conductors in Well Nos. 3, 4, 5, 6 and the booster station should either be removed and replaced with copper or properly terminated with dye applied compression connectors. The cost of furnishing and installing new copper is approximately $500.00 per well more than properly terminating the aluminum conductors. Mr. E. J. Budke, T.K.D.A., has verbally indicated to me that either procedure is acceptable. Well No 1 Control Center and Pump Starter - The pump starter is obsolete and in poor and unreliable condition. It has undergone many emergency repairs. My understanding, from Bill Hanggi, is that the pump motor initially starts at a lower r.p.m. then speeds up to the operating r.p.m. If a starter is purchased, it should be capable of handling this motor and pump combination. The control center has old fabric insulated wiring and is not sectioned like newer equipment. The cost to solve this problem is $6,300.00. This problem is not severs and could wait if funds are not available.