# "Industrial-Electricity.com" — Information and Resources for Students and Industry

NEW! -- We have moved in!! The site formerly known as "Industrial-Electricity.com" This was our sister site (2005-2016) created simultaneously with gammaelectronics. All its content are finally and conveniently here on gammaelectronics!

## Power Systems, Electric Machines and Drives

On our sister site: Basics of Industrial Motor Control

Electric Utility Power Systems

Generating Electrical Power: INTRO; HYDROPOWER GENERATING STATIONS; THERMAL GENERATING STATIONS; NUCLEAR; QUIZ

Ultimate Guide to Basic Power System Protection

Ultimate Guide to Industrial Power Distribution

## Power System Analysis and Design

• Inspection, Testing and Commissioning

Let's open the broad topic of Industrial Electricity with Open and Closed-Loop Feedback Systems...

On this topic, we will explain:

1. The difference between open-loop and closed-loop systems.
2. The terms gain, reset, and rate.
3. The terms proportional, integral, and derivative.
4. The term differential gap (dead band) as it refers to an on-off controller.
5. The term bump.
6. How a controller that uses proportional only (P only) will respond.
7. How a controller that uses proportional, integral, and derivative (PID) will respond.
8. The term bias (offset) and how it's used to help the P-only controller.
9. The term proportional band.
10. The operation of a ratio control system for an on-off heating contactor.
11. How a loop is tuned.
12. How you'd determine the proper value of gain, reset, and rate for a new closed-loop system.
13. The function of process alarms.
14. The function of deviation alarms.

We will present:

1. A block diagram for a typical servo (feedback) system and identify the setpoint (SP), process variable (PV), error, summing junction, controller amp, and output (final control element).

We will discuss:

1. The difference between manual mode and automatic mode.
2. The term bumpless transfer.

## Field Guide to Industrial Electrical Gear

above: Lenze Servo Drive

above: Low Voltage Motor Control Center

above: Motor control center solutions incorporating AC Drives. These drives include a wide range of horsepower ratings, enclosure choices and standard/optional features.

Schneider's Model 6 Motor Control Centers with 18-Pulse Drives: The Model 6 Motor Control Center with 18-Pulse Drive is specifically designed for installations specifying clean power, low-harmonic content in compliance with IEEE 519 guidelines for harmonic mitigation.

AMAZON multi-meters discounts AMAZON oscilloscope discounts

OEM Manufs. and Suppliers:

PID and related:

Other:

• Measurement Testing — A Forum/Website Dedicated to Environmental Testing, EMC Testing, Vibration Testing and related areas
• data-acquisition.us--- Data Acquisition, Signal Conditioning, Industrial Preventive Maintenance, and Maintenance Management Software
• Maintenance Industrial --Innovative Solutions for Manufacturing and Industry.
• DIY Electronics and Computer -- whole systems, components and parts for modern electronics hardware

An Industrial-Electronics network
Thursday, March 21, 2024 11:49