Design a motor power circuit. The circuit will include two pumps, one small circulation pump and one larger well pump.
engineering
Description
Design a motor power circuit. The circuit will include two pumps, one
small circulation pump and one larger well pump. You will design the circuit
breaker, disconnect device, motor starter, overloads, conductors, and enclosure
per the NEC and specifications (discussed in class). You will develop a set of
drawings (using AutoCAD Electric) which will include a BOM (use Excel), and
will support each component selection with a citation from the NEC and
appropriate calculations (referenced and shown on green engineering paper).
|
Project Motor Size# 1 |
Project Motor Size# 2 |
|
1 |
300 |
Tradeoff
Design criteria include: cost, reliability, maintainability, ease of
replacement, availability, protection ratings, and adjustability.
General
Specifications: (see class for others)
- Enclosure
must be free standing and protected from falling rain or dripping water.
- Main
disconnect must be rated for 150A, or twice the largest motor FLA (whichever is
larger) and must be flange connected.
- Control
voltage shall be 120VAC.
- Equipment
must be rated for 480VAC operation.
- Motors shall
be protected with circuit breakers.
- Control
transformer shall be protected with primary fuses, at a minimum.
Submission
details:
- At a
minimum, you will submit:
-
1) Drawings (which include: Title page, site layout, power distribution,
control wiring, internal panel layout, external panel layout, bill of
materials)
- 2)
Specification Document
- 3)
Project Calculations and Justification (site NEC articles, show equations and
calculations, and logic to justify decisions)
