Advanced Power Technologies (APT)

Medium Voltage Grounding & Fault Detection Systems

Low Resistance Resistor Grounded
High Resistance Transformer / Resistor Grounded
Zig-Zag Transformer Effectively Grounded Solar PV
Low & High Impedance Reactor Grounded

Industrial

Commercial

Home » Power System Products » Grounding Systems

LZR-Series Neutral Grounding Resistor (NGR) Low Resistance Grounding System

APT “low impedance grounding” Neutral Grounding Resistors and Reactors will reduce the stress and amount of damage to your power system equipment by controlling the magnitude of the ground fault currents. When used in generator neutral, these devices will also limit the amount of the generator available Line to Neural fault current below the design limits set by the NEMA MG1 generators design standard.​

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HZR-Series High Resistance Grounding (HRG) System

An appropriately sized APT HZR-Series High Resistance Grounding (HRG) System provides increased continuity of service due to the ability to operate a power system under a ground fault condition. A ground fault alarm is provided to alert the operations personnel to assist in identifying and correcting the ground fault condition and consider orderly shut down as required to clear the fault.​

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ZGR-Series Low & High Impedance Grounding Reactor

ZGR-Series Neutral Grounding Reactor (NGR) 2.4 kV – 15 kV Low Reactor Grounding System APT “impedance grounding” Neutral Grounding Reactors will reduce the stress and amount of damage to your power system equipment by controlling the magnitude of the ground fault currents. When used in generator neutral, these devices will also limit the amount of the generator available.​