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Low-voltage high-resistance grounding

Eaton’s high-resistance grounding (HRG) system limits the magnitude of current during a ground fault, reducing arc flash energy to increase personnel safety and minimize the failure of motors, transformers, power cables and other equipment. Eaton’s HRG system provides integrated fault tracing making it ideal for critical applications such as industrial, oil and gas, petrochemical, healthcare and utility.

Satış ekibi ile iletişime geçin
Aramaya Geri Dön
VOLTAGE CLASS
Up to 600 V
GROUND FAULT LIMITING
1 – 10 Amps,
1 A increments
SHORT-CIRCUIT WITHSTAND
Up to 200 kAIC

Temel Özellikler

  • Provides ground fault detection and integrated fault tracing for quick resolution
  • Available with a Wye connection with neutral option or Delta connection with artificial neutral option
  • Stand alone in NEMA 1 or NEMA 3R enclosure (Eaton HRG), custom ratings and options available
  • Ground fault limiting up to 5 A with Eaton HRG, custom up to 10 A available
  • Optional integration of HRG within Eaton’s Magnum low-voltage switchgear, low-voltage motor control centers (MCC) and switchboards

View design guide (layouts, technical data and application information)

Download guide spec (26 05 95 13)

Learn more about power system design basics

C-HRG (standalone or integrated)

Eaton’s C-HRG is available in a standalone NEMA 1 or NEMA 3R enclosure. As an option, the system can be integrated within Eaton’s Magnum DS™ low-voltage switchgear, low-voltage motor control centers (MCC) and switchboards.
Learn more

High resistance grounding

Low-voltage high resistance grounding systems

Grounding is commonly used in the electrical industry to mean an intentional connection to earth of conductive materials either solidly or through impedance. An ungrounded system is a system, circuit, or apparatus in which there is no intentional connection between the system conductors and earth.  A system may still be considered ungrounded if there is a possible connection to earth ground through potential measuring devices or very high impedance devices. High resistance grounding, mainly used in low-voltage systems, most common in 480 V and 600 V systems, this arrangement means that a certain resistance has been intentionally put between the neutral point of a system and earth ground.

Factors to consider when choosing a grounding system:

  • There is a need for service continuity after the first ground fault
  • There is a need to be able to easily locate ground faults
  • There is no need to serve line-to-neutral loads
  • If there is no available neutral, it will be necessary to create an artificial neutral
  • It will be necessary to estimate, calculate, or measure the capacitive charging current of the system
  • The magnitude of maximum current acceptable on the system under ground-fault conditions
Read application paper
Teknik Özellikler

View design guide (layouts, technical data and application information)

Download guide spec (26 05 95 13)

Learn more about power system design basics

Ratings

RATED MAXIMUM VOLTAGE
 600 V
GROUND FAULT LIMITING
 1 – 10 Amps, 1 A increments

SHORT-CIRCUIT WITHSTAND*

 Up to 200 kA

Standards

ANSI/IEEE
 C37.20.1
UL*
 UL Certified
NEMA
 NEMA 1 indoor, NEMA 3R outdoor
SEISMIC QUALIFICATION*
 IBC, CBC, UBC Zone 4

Devices

RESISTOR
 5 A and 10 A resistors, 1 A taps, custom uses 32 A continuous
FAULT DETECTION
 Current sensing and/or voltage sensing

FAULT LOCATION

 System pulsing
* Not available for custom HRG designs
  

Enclosure

CONSTRUCTION
 Metal-enclosed
POWER TERMINATIONS
 Top and bottom entry

ENCLOSURE TYPE

 Standalone, Wall-mount, Switchgear-integrated*
İndirme Linkleri

Eaton, faaliyet gösterdiği her yerde insanların yaşam kalitesini iyileştirmeyi ve çevreyi korumayı ilke edinmiş bir güç yönetimi şirketidir. İşimizi doğru yapma, sürdürülebilir şekilde çalışma ve müşterilerimizin, gücü bugün olduğu gibi gelecekte de yönetmelerine yardımcı olma taahhüdümüz bize rehberlik etmektedir. Elektrifikasyon ve dijitalleşmenin küresel büyüme trendlerinden yararlanıyor, gezegenin yenilenebilir enerjiye geçişini hızlandırıyor, dünyanın en acil güç yönetimi sorunlarının çözülmesine yardımcı oluyor ve hem paydaşlarımız hem de toplumun tamamı için en iyi çözümleri hayata geçiriyoruz.

1911 yılında kurulan Eaton, New York Menkul Kıymetler Borsası'na kote olmasının 100. yılını kutluyor. 2022'de 20,8 milyar dolar gelir elde eden şirketimiz ve 170'ten fazla ülkede hizmet veriyor. Daha fazla bilgi için www.eaton.com/tr adresini ziyaret edin. Twitter ve LinkedIn'de bizi takip edin.

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