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The PGR-4300 series relay operates on solidly-grounded ac systems. This generator ground-fault relay provides a simple method for detecting a ground-fault condition on generators without the need for current transformers (CTs). The lack of CTs greatly simplifies the installation process. This relay also monitors the neutral-to-ground path for continuity, and it is compatible with both three- and four-pole transfer switches. The PGR-4300 relay is ideal for any generator or application where there is not sufficient space to install CTs.
- No CTs required
- Adjustable pickup (100–1200 A)
- Adjustable time-delay (0–1.0 s)
- Output contacts
- Analog output (0–1 mA)
- N–G continuity alarm
- Passive filtering
- POWR-GARD® technology
- Saves space and simplifies installation
- Adjustable trip setting provides a wide range of protection and allows system coordination
- Adjustable trip-delay allows quick protection and system coordination
- Form C ground-fault output contacts for alarming or tripping purposes
- Provides means for connecting to an optional meter (PGA-0500) or control system
- Monitors neutral-to-ground integrity and alarms if ground path becomes an open circuit
- Eliminates nuisance tripping
- Superior protection against electrical system damage
PGR-4300 Parts
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Filters
PGR-4300 Applications
- Solidly grounded ac systems
