Parts of a Circuit
A safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.
What is a fuse?
An engine that generates power by the burning of gasoline,oil, or other fuel with air inside the engine, the hot gases produced being used to drive a piston
or do other work as they expand.
What is an Internal Combustion Engine (ICE)?
A unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors, where 1 equals 764 Watts.
What is horsepower (hp)?
A material or device that conducts or transmits heat, electricity, or sound and
offers very little resistance to current flow.
What is a conductror?
A safety procedure used to ensure that dangerous equipment is properly shut off and not able to be started up again prior to the completion of maintenance or repair work.
What is Lock Out Tag Out (LOTO)?
This allows current to travel along an unintended path with zero or very little
resistance. This creates excess heat.
What is a short circuit?
The EV component that acts as the brains of the operation, sending and receiving
data such as brake position, throttle position, rotor position, power limits, and various other
settings.
What is the controller?
The measure of electrical current.
What is amperage (amps)?
A force that produces or tends to produce rotation or torsion.
What is torque?
A metallic strip or bar that both grounds and conducts electricity for local high current power distribution.
What is a busbar?
When the components are all connected in a single pathway in an electrical circuit.
What is a series?
An area of a vehicle that is designed to deform and crumple in a collision. This absorbs some of the energy of the impact, preventing it from being transmitted to the occupants.
What is the crumple zone?
The calculation used to equate EV efficiency to fuel efficiency which uses the measure of 33.7 kWh of electricity compared to one gallon of fuel.
What is miles per gallon equivalent (MPGe)?
An electric current flowing in one direction only.
What is Direct Current (DC)?
An umbrella word for anything in a circuit that uses electrical energy and converts it into another form of energy.
What is a load?
When components are connected side by side in an electrical circuit.
What is in parallel?
The smallest unit of measurement for a battery in an EV.
What is a battery cell?
A measure of electrical energy equivalent to a power consumption of one watt for one hour.
What is a Watt-hour (Wh)?
Unwanted noise or interference in an electrical path or circuit caused by an outside source.
What is electromagnetic Interference (EMI)?
The higher this is, the greater the material resists current flow.
What is resistance?
This is present when electric current flows through the air between two conductors.
When this happens, the current no longer travels along its intended path. Instead, it jumps
from one conductor to another. An arc is a form of a short circuit that is accompanied by
visible light and heat.
What is electric arc?
An electronic system that manages a rechargeable battery, such as by protecting the battery from operating outside its safe operating area, monitoring its state, authenticating it and/or balancing it.
What is the Battery Management System (BMS)?
The standard unit of electrical resistance.
What is Ohms (Ω)?
This is the value assigned to a system or circuit of a given voltage class for the purpose of convenient designation.
What is nominal voltage?
A key component that supports communication between a vehicle and a charger for rapid charging of an electric vehicle.
What is the Electric Vehicle Charger Controller (EVCC)?