GP1000-G1/G4-AS

Model Numbers: GP1000-G1-G4-AS, GP1000-G1-G4-AS-D1

Automatic Insulation Resistance Tester that monitors and protects critical-duty generators

GenGuard applies a current limited, fixed DC voltage to the generator’s windings during idle periods. On four wire neutral grounded systems the ground interrupter automatically opens the neutral ground while the GenGuard is testing the windings. The ground interrupter safety circuit will not allow the generator to operate unless the neutral ground is closed. A solid state comparator circuit monitors measured leakage current to ground. Two adjustable set points, factory preset to customer specifications, can be programmed to signal a pre-alarm, alarm and lockout the equipment from operating if the low set point is exceeded. The manual reset feature enables a return to operational status only after the alarm condition has been corrected. GenGuard will not impair normal operation of the equipment being monitored.

Specifications

Input Voltage: 120 VAC, (optional 240 VAC), 50/60 Hz
Input Current: .05 A max. @ 120 VAC
Test Voltage: 500 VDC @ 200 μA max.
Maximum Line Voltage: 750 V RMS
Control Sensing: 120 VAC, 50/60 Hz or 24 VDC
Alarm Time Delay: 0 – 15 Seconds
Alarm/Lockout Contacts: 2 Form C, 5A @ 240 VAC or 28 VDC
Pre-Alarm Contact: 1 Form C, 5A @ 240 VAC or 28 VDC
LED Display:
Power On: Green
Test On: Yellow
Pre-Alarm: Yellow Flashing
Alarm: Red Flashing
Meter Output: 1% Analog Signal (0-200 uA DC)
Accuracy: 1% Overall
Ambient Temperature: -20° F to 140° F
Size: 2.75″ H x 6″ W x 4.5″ D
Weight: 1.5 lbs.
Assembly: Meets UL 508/61010 specifications
G1/G3: Normally Open G.I. Contactor 400/1500 A
G2/G4: Normally Closed G.I Contactor 500/1200 A

Documents

Features

  • Single Generator Model (AC) (DC)
  • Auto/Manual test operation
  • Adjustable low-alarm and pre-alarm set points
  • Pre-alarm contacts with auto reset
  • Latching low-alarm contacts with manual reset
  • Fused input and test lead output
  • 500 VDC test voltage
  • Calibration and system test switch
  • Long-life, remote LED/switch assembly w/10’ cable
  • Ground Interrupter safety interface
  • Compact, lightweight enclosure
  • DIN Rail mounting bracket
  • 1% Meg ohm meter with 4″ color coded dial
  • 10 Year Warranty

Optional Features