Start up amperage for motors
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Measure the current on each branch circuit with all equipment on. AMPS measured should be no greater than 80% of wire ampacity and circuit breaker size except for motor circuits during start-up. Write amperage down beside each circuit on panel directory. Motor circuits only; the running current should be no greater than 80% of wire ampacity.
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Motors larger than 75 HP may require a soft-start feature in the by-pass starter. If motors are typically driven faster than 60 Hz or multiple motors are driven by a single VFD such as in a FanWall, bypassing to another VFD may be most appropriate and manufactures are beginning to offer these products. F. Amperage Interrupt Capacity
[DOCX File]Xylem Inc.
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New pump start-up shall be for the purpose of determining pump alignment, lubrication, voltage, and amperage readings. All proper electrical connections, pump’s balance, discharge and suction gauge readings, and adjustment of head, if required. A copy of the start-up report shall be made and sent to both the contractor and to the Engineer.
[DOC File]TURN OVER PACKAGE GUIDE - Colarelli Construction
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6.4.4.4 Start-up, operating and maintenance manuals . 6.4.5 Startup/Commissioning Documentation . 6.4.5.1 Air balance (TAB) report with room static pressures . 6.4.5.2 Wet side balancing: hydraulics/hydronics . 6.4.5.3 HEPA filter testing and certification (DOP challenges and velocity/air supply rates) 6.4.5.4 Room air change rate calculations
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If so, bring up to speed and check amperage to motor to make sure enough static pressure is present in system to prevent motor from overloading. Vibration levels should be checked and if they are above values shown in table on page 4, a qualified balancing technician should trim balance the unit to achieve these levels. Section II. BEFORE START-UP
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Verify this performance as part of the equipment start-up for 440+ VAC applications. Under no operating conditions shall the voltage from the motor shaft to ground exceed 3.5 volts using an electronic meter. Verify this performance as part of the equipment start-up. All VFD bypass features shall work and start the driven equipment without problems.
[DOC File]SECTION: GRINDER PUMP UNITS - Environment One
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Non-capacitor start motors or permanent split capacitor motors will not be accepted because of their reduced starting torque and consequent diminished grinding capability. The wet portion of the motor armature must be 300 Series stainless steel. ... Real-time Amperage. Real-time Wattage. Minimum/Maximum/Average Voltage. ... 3.05 START-UP AND ...
[DOC File]Grundfos USA - Pumps and Pump Solutions For All Your Needs
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station log book and on the start up form from the manufacturer. For a three. phase pump, repeat step 1 for each lead. STEP 2. On three phase pumps, check to determine that the amperage imbalance is. satisfactory. If the amperage imbalance exceeds the Yeomans Pump. specifications, trace and locate the cause of the problem, starting with the
[DOCX File]Section 22 62 19.74 - DENTAL VACUUM AND EVACUATION …
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3.With all hoses fully closed, start the system. Fifteen minutes after startup, measure the current draw of the motors with ammeter and record the reading of the vacuum gage. Fully open HVE valves with HVE tips in them and record the current and vacuum values again. Amperage measurements shall not exceed the motor full load amperage rating.
[DOCX File]www.xylem.com
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New pump start-up shall be for the purpose of determining pump alignment, lubrication, voltage, and amperage readings. All proper electrical connections, pump’s balance, discharge and suction gauge readings, and adjustment of head, if required. A copy of the start-up report shall be made and sent to both the contractor and to the Engineer.
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