POWR-GARD
®
Protection Relays, Monitors & Systems
Ground-Fault Protection – Ungrounded aC System (PGr 3000 Family)
PGr-3200 SerIeS
Ground-Fault Protection System
Description
The PGR-3200 continuously monitors the insulation integrity
of ungrounded electrical systems for ground faults. The relay
provides two warnings for predictive purposes and one alarm.
When the power system is de-energized, the relay monitors
the insulation for damage, providing predictive maintenance
and troubleshooting for developing ground faults.
When the power system is energized, the relay monitors
the system for ground faults and provides warnings as well
as an alarm.
GrOuND-FAulT PrOTECTION rElAYS
Applications
The units operate on ungrounded systems up to 6 kV,
1-phase or 3-phase, 50 or 60 Hz. The relay can be directly
connected to power systems up to 1,300 V. Higher voltage
requires a pre-calibrated high tension coupler (PGH)
connected between the phase conductor and the relay.
Features/Benefits
PHASE
CONDUCTOR
(<1300 V)
CONTROL
POWER
• Meets National Electrical Code (NEC
®
) Article 250.21(B)
requirements for ungrounded systems
• Provides 2 warnings at different levels (30 k
Ω
and 50 kΩ)
and 1 alarm (10 kΩ)
2
5
N
6
240 V
10
11
12
13
14
15
• Analog output and optional meter (PGA-0510)
• DIN-rail or surface mount for ease of installation
10 k
ALARM RELAY
50 k
WARNING RELAY
POWR-GARD
®
GROUND-FAULT PROTECTION SYSTEM
PGR-3200 SERIES
Ordering Information
PGR-3200
240 Vac Control Power
ANALOG
OUTPUT
0-1 mA
+
18
19
21
22
25
26
27
28
29
30
Specifications
IEEE Device Numbers
Input Voltage
Dimensions
resistance ratings
Contact Operating Mode
Test Button
reset Button
relay Contacts
Communications
Conformally Coated
Warranty
Mounting
27, 64
RESET
50 k
RESET
10 k
240 Vac,
50–60 Hz
H
99.7 mm (3.9”);
W
75 mm (3”);
D
110 mm (4.3”)
Insulation warning (30 k
Ω
and 50 k
Ω)
Insulation alarm (10 k
Ω)
Non-fail-safe
Standard
Standard
N.O and N.C. (warning and alarm)
Analog Output
Optional
5 Year
DIN, Surface
POWR-GARD
®
ANALOG
OHM METER
POWR-GARD
®
HIGH TENSION
COUPLER
PGA-0510
(optional)
PGH FAMILY
PHASE
CONDUCTOR
(>1300 V)
See pg. 31-36 for Current Transformer Selection Guide and
Accessory Information.
www.littelfuse.com/series/PGR-3200.html
10
© 2009 Littelfuse
•
POWR-GARD
®
Protection Relay Catalog
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