High resistance grounding comparison chart - Post Glover Resistors

High Resistance Grounding Comparison Chart

Standard Practices For Industrial Plants
Voltage 600 volts and lower 2.4 to 35 kv	Grounding Method Solid Grounding & High-Resistance Grounding Low Resistance Grounding
NOTE: A recent trend on 600-volt and lower systems has been to use high resistance grounding with all the inherent advantages it has to offer.

Comparative Benchmarks for Various Grounding Methods
	Methods of Grounding
Characteristics	Ungrounded	Solid Grounded	Low Resistance	High Resistance
Immunity to transient over-voltages	Worst	Good	Good	Best
Increase in voltage stress under line-to-ground fault conditions	Poor	Best	Good	Poor
Equipment protected against arc fault damage	Worst	Poor	Better	Best
Safety to personal	Worst	Better	Good	Best
Service reliability	Worst	Good	Better	Best
Maintenance cost	Worst	Good	Better	Best
Continued production after first ground fault	Better	Poor	Poor	Best
Ease of locating first ground fault	Worst	Good	Better	Best
Permits designer to coordinate protective devises	Not Possible	Good	Better	Best
Ground fault protection can be added easily	Worst	Good	Better	Best
Two voltage levels on the same system	Not Possible	Best	Not Possible	Not Possible
Reduction in frequency of faults	Worst	Better	Good	Best
First high ground fault current flows over grounding circuit	Best	Worst	Good	Better
Potential flashover to ground	Poor	Worst	Good	Best

Video Tutorial

High Resistance Grounding HR103-08
	Post Glover's High Resistance Grounding video tutorial with narration delivers an in-depth description of the uses and benefits of high resistance grounding.

More Information

High_Resistance_Grounding-IEEE 2.92 MB
	"High-Resistance Grounding" by Baldwin Bridger, Jr.- Senior Member IEEE, IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, January/ February 1983

HR003-05_HRG Application_Guide 335 KB
	Ground Fault Protection on Ungrounded and High Resistance Grounded Systems- Application Guide

HRG_Marathon_Oil_Case_Study 817 KB
	"High Resistance Grounding- Case Study: Marathon Oil Company" by Jill Revolt- Segment Marketing Manager and Dave Shipp- Advisory Engineer, PQ CONNECTION, Summer 1999

HR002-05_HRG_Conversion_Guide 3.87 MB
	Ground Fault Protection Technical Guide- Converting Ungrounded Systems to High Resistance Grounding

HG105-10_PulserPlus.Net Manual 2.53 MB
	PulserPlus.Net High Resistance Grounding System- Instruction Manual

High_Resistance_Grounding_Tech_Paper 1.3 MB
	"High-Resistance Grounding of 2400-Volt Delta Systems with Ground-Fault Alarm and Traceable Signal to Fault" by Francis K. Fox- General Electric Company, Howard J. Grotts- Tidewater Oil Company and Clyde H. Tipton- Standard Oil Company of California, IEEE TRANSACTIONS ON INDUSTRY & GENERAL APPLICATIONS, September/ October 1965

HR001-05_High_Resistance_Ground ing 2.28 MB
	High Resistance Grounding Brochure- Information on Grounding, Ground Faults and High Resistance Grounding

HR203-10_OEM_Kit 337 KB
	High Resistance Grounding OEM Kit- Information on Features, Benefits, Operation and Construction of the PulserPlus.Net High Resistance Grounding unit

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