Grounding in Electrical Power Distribution Systems

Grounding in Electrical Power Distribution Systems

Yogyakarta | 01 – 04 September 2014 | IDR 7.000,000.00 / participant
Yogyakarta | 24 – 27 November 2014 | IDR 7.000,000.00 / participant

DESCRIPTION

This seminar is designed for engineers and technologists who are engaged in the design of power distribution system installations. The seminar is based on ANSI/IEEE Standard #80 “IEEE Guide for Safety in AC Substations Grounding”. It builds on the theoretical fundamentals of grounding and provides the participant with the practical knowledge and application to design and test the grounding system to ensure safety for those who work on the system as well as the public. In particular, the tolerable current for the human body and the maximum allowable step, touch and ground potential rise will be explained. Analysis of ground fault currents and how to effectively ground the system components will be discussed

WHO SHOULD ATTEND

Electrical Engineers, Project Engineers, Design Engineers, Plant Engineers or those who have a considerable understanding of electrical grounding and are responsible for the engineering, design, construction, installation, inspection, operation, or maintenance of electrical grounding systems in an industrial, commercial or institutional or utility setting.

SUMMARY OUTLINE

1.    Introduction and Purpose of Grounding

•  System Grounding
• Equipment Grounding

2.    Sources of Voltage Rise on System Components
3.    Tolerable Limits for Body Current
4.    Analysis of Grounding Systems

• Grounding Standards and References
• Calculation of Step and Touch Voltages
• Analysis of Ground Grid Fault Current
• Grounding Electrodes and Mats

5.    Soil Considerations

• Characteristics (Moisture and Temperature)
• Chemical Content
• Crushed Stone
• Measurement of Soil Resistivity
• Methods to Lower Soil Resistivity
• Methods to Improve Ground Resistance

6.    Selection of Conductors and Connectors

•  Thermal Capacity
• Mechanical Strength
• Connector Types

7.    Grounding of System Components

• Distribution Substations

1. Soil Resistivity
2. Ground Grid Resistance
3. Ground Potential Rise
4. Touch Voltage
5. Step Voltage

•  Overhead Distribution System
• Underground Distribution System
• Service Entrance Equipment

8.    Special Considerations & Hazards

•  Switch Handles
• Switch Handles
• Distribution Poles (Wood, Concrete, & Steel)
• Fences
• Cable Shields & Concentric Neutral Grounding
• Surge Arresters
• Grounding Transformers
•   Portable Protective Grounds

9.    Ground Grid Maintenance

• Visual and Manual Inspection of Grounding Systems
• Testing Methods and Equipment

10.    Ground Fault Protection

• Ground Fault Sensing
•  Requirements for GFP

11.    Study Cases

• Case Study #1

1. Exploring alternatives for reducing the high grounding resistance at SS site.
2. Interconnecting with the system neutral as a solution.
3. Calculation of induced voltage on joint use communication cable.

• Case Study #2

1. Ground grid calculations using IEEE #80 Equations for a large interconnecting substation

METHODE

• Discuss
• Case Study
• Evaluation
• Simulation

INSTRUKTUR

Teguh Santoso, Ir
Teguh Santoso experienced more than 26 years in Electrical.

TIME & VENUE

• Dafam fortuna Hotel, Yogyakarta
• 3-6 March 2014
• 5-8 May 2014
• 1-4 September 2014
• 24-27 November 2014

• 4 days – 08 am – 04 pm

COURSE FEE

IDR 7.000,000.00 per participant non residential

FACILITY

• Module / Handout
• Certificate
• Souvenir
• Training Kit