Neutral grounding resistors are used in industrial distribution system for resistance grounding or connected transformer and generators.

Limiting fault current to a reasonable level limits the fault current to a value which is sufficient enough to operate protective relays limits damage to equipment provides safety for personnel.

General

Designed and tested with IEEE32-1972

All stainless steel resistor elements

Current transformer included EN60044-1

Epoxy based electrostatic powder painted hot-dip galvanized or stainless stain enclosure

All part factory assembled. No field assembly required

Meets seismic zone 4 requirements

Specification

Designed and tested with IEEE 32-1972

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All stainless steel resistor elements.

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Current transformer included EN60044-1

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Epoxy based electrostatic powder painted hot-dip galvanized or stainless stain enclosure

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All parts factory assembled. No field assembly required

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Meets seismic zone 4 requirements

Standards: IEEE32, EN60137, EN60529, EN60298, EN60273, EN60071, EN60060

Technical specifications

Operation voltage: up to 72kV line to line

Rated current: up to 2000A

Ambient temperature :< 55

Resistor elements: stainless steel

Protection degree: IP00-IP54

Options

Motorized-manual disconnector

Header thermostat

Vacuum contactor

Elastimold bushing input

Current-voltage transformer

Relays

External bushing

Enclosure features

2mm hot-dip galvanized or stainless steel

Assemblies are available IP00 or IP55

Required color RAL 70XX

Solid steel one piece top

Inox eyebolt for handling ease

Tests

Total DC resistance

Withstand test of dielectric strength

Resistor block insulation test

Insulation resistance measurement between N-G

Paint and galvanized thickness test

Information needed to quotation

All custom design are available

System voltage

Line to neutral voltage

Current rating

Resistance level

Maximum time ON (sec.)

Bushing/cable-open or enclosed

Current transformer ratio (if applicable)

Grounding transformer KVA rating (if applicable)

Special options