1 73 three phase

    • [DOC File]Notes 10: Conductor sizing & an example

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      Three phase. Single line to ground. Double line to ground. Line to line. Most power systems find that #2 is the most common, comprising about 70% of all faults. Type 4 is next, at about 15%. ... Thus, we see that the maximum value of rms current is 1.73 times the rms steady-state current I1.

    • [DOCX File]Minimum Efficiency Requirements Tables for Heating and ...

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      MINIMUM EFFICIENCY REQUIREMENTS TABLES FOR HEATING AND COOLING PRODUCT CATEGORIES. The Federal Energy Management Program (FEMP) created tables that mirror American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 90.1-2016 tables, which include minimum efficiency requirements for FEMP-designated and ENERGY STAR-qualified heating …

    • [DOC File]What is recovery - FEMA

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      Schwab and his colleagues (1998) adopted a similar three phase typology that broadly distinguished among emergency response, short term recovery, and long term recovery. Alexander (1993) described three stages of disaster recovery, with the first, the rehabilitation stage, involving the continuing care of …

    • [DOCX File]WBDG

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      Output Circuit Neutral Bus, Conductor, and Terminal Ampacity: Rated phase current times a multiple of 1.73, minimum. Battery Description: Valve-regulated, recombinant, lead-calcium units, factory assembled in an isolated compartment of UPS cabinet, complete with battery disconnect switch.

    • [DOC File]Basic Type of AC Power Systems

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      All three phase systems provide. 1.73 times as much power as a single phase system of same. 120 V, 1 phase, 208V 1 phase and ampacity for only about 1.25% . 3 phase loads can be used. the cost. More economical. All panel spaces can be used. No wild leg. 120/240 Volt, 3 phase, 4 wire Delta Application

    • [DOC File]Escalator specs:

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      138 minutes + 1.73 minutes = 139.73 minutes/60 minutes = 2.33 hr/6 hr = 38.8%. Up escalator: 132 minutes + 3.42 minutes = 135.42 minutes/60 minutes = 2.26 hr/6 hr = 37.7%. Average of both: 38.3%. Motor Output: Motor = 5 HP. 1 HP = 746 W (MEEB pg. 180) 5 HP x 0.746 kW = 3.73 kW. Basic Charge – Three-Phase Plan (Monthly Service Charge): $28.25

    • [DOCX File]Study - Arc flash guide spec - Eaton

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      Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault at each: Electric utility’s supply termination point. Incoming switchgear. Unit substation primary and secondary terminals. Low voltage switchgear. Motor control centers. Standby generators and automatic transfer switches

    • [DOC File]1

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      SLS Pole Mounting Hanger 33.1(73) Sectionalizer. Construction. ... Each three phase sectionalizer shall have six (6) LEA (Low Energy Analog) capacitive voltage sensors. Three on the load side and three on the source of each pole. The voltage sensors shall be encapsulated within each sectionalizer module permitting voltage readings on the source ...

    • [DOC File]OBJECT - SIUE

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      Three-phase systems are usually connected in either a delta or wye configuration. Each of these connections has definite electrical characteristics and the designations delta and wye are derived from the method of connection. ... (1.73)? k) Calculate the power dissipated by each load resistance (P1, P 2, P 3) l) Calculate the total three-phase ...

    • [DOC File]SECTION 220513 - COMMON MOTOR REQUIREMENTS FOR …

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      Motors 1/2 HP and larger, annual operating hours greater than 3,000: 460 volts, three phase, 60 Hz. Motors larger than 3/4 Horsepower: 460 volts, three phase, 60 Hz. Type: Single-phase motors shall be split phase, permanent split capacitor, capacitor start, or capacitor start/capacitor run type as determined by the application.

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