High Resistance Grounding Comparison Chart

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

Additional Information & Documents

High Resistance Grounding

SmartPulse LV OEM Kit Tech Sheet HR509-23

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SmartPulse LV Tech Sheet HR501-23

Download 0.00 KB 78 downloads

SmartPulse Communication Manual HR503-23

Download 0.00 KB 86 downloads

SmartPulse LV IOM Manual

Download 0.00 KB 64 downloads

PulserPlus.Net OEM Kit

Download 402.71 KB 830 downloads

PulserPlus.Net™ IOM - Instruction Manual (V7)

PulserPlus.Net™ IOM - Instruction Manual (V7)

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Clamp-on Ammeter

Download 167.30 KB 3835 downloads

High Resistance Grounding Explained

Download 248.49 KB 6628 downloads

PulserPlus.Net™ – LV High Resistance Grounding

Download 420.31 KB 5006 downloads

PulserPlus.Net™ Communication Manual

Download 556.28 KB 3638 downloads

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