POWR-GARD
®
Protection Relays, Monitors & Systems
Motor Protection – Advanced (PGR 6000 Family)
PGR-6300 SeRieS
Motor Protection System
Description
The PGR-6300 Motor Protection System monitors voltage,
current, and temperature (optional) to provide a comprehensive
package of 22 protective functions. The PGR-6300 is a modular
system with integrated protection, motor control, metering, and
data-logging functions. This system is typically used to provide
protection for three-phase low- and medium-voltage, medium-
to high-horsepower induction motors.
1
Operator Interface
1
MOTOR PROTECTION RELAYS
Large, bright, 4 x 20 vacuum-fluorescent display
Display metered values
Keypad for motor control and menu selection
Access set points
Powered by Control Unit
Panel mount or attach directly to Control Unit
Remote mounting (1.2 km or 4000 ft maximum loop length)
1/2 DIN size
Hazardous-location certified
2
Control Unit
2
Wiring Diagram
POWR-GARD
®
OPERATOR INTERFACE
PGR-6300 SERIES
(included)
1
POWR-GARD
®
PHASE CURRENT
TRANSFORMERS
Current inputs—5-A or 1-A secondary phase current transformers
Voltage inputs—up to 600 V without PTs
Earth-leakage input—5-A or 1-A secondary or sensitive transformer
Tachometer (high-speed pulse) input
8 digital inputs, 5 relay outputs, 1 analog input and output
24-Vdc supply for OPI and RTD modules, and for digital inputs
IRIG-B time-code input
1/2 DIN size, surface mount
RS-485 network communications
DeviceNet
™
, Profibus
®
, or Ethernet communications available
POWR-GARD
®
GROUND-FAULT
CURRENT
TRANSFORMER
POWR-GARD
®
TEMPERATURE
INPUT MODULE
PGA-0120
PGC 2000 SERIES
Accessories
C
A
PGC FAMIL
Y
(optional)
(required)
A
(required)
B
DIFFERENTIAL
CURRENT MODULE
POWR-GARD
®
PHASE
VOLTAGES
PGA-0140
PGC-2000 Series Phase Current Transformers
Required CT detects phase current or ground-
fault current (200-A primary). Other current
ratios available.
(optional)
D
B
33
22
30
29
27
26
23
22
20
......
17
60
56
53
I/0 MODULE
+
52
PGC Family Ground-Fault Transformers
Required zero-sequence current transformers
detect ground-fault current. Available with 5-A and
30-A primary ratings for low-level pickup.
PGA-0120 Temperature Input Module
Optional module provides 8 inputs to connect
Pt100, Ni100, Ni120, and Cu10 RTDs.
PGA-0140 Differential Current Module
Optional differential protection, compatible
with core balance and summation current
transformer connections.
POWR-GARD
®
MOTOR PROTECTION SYSTEM
PGR-6300 SERIES
4-20 mA
ANALOG
INPUT
C
(Control Unit)
RELAY
OUTPUTS
RS-485
ANALOG
OUTPUT
4-20 mA
+
DIGITAL
INPUTS
D
2
1
2
5
......
16
35
......
37
39
40
43
......
51
CONTROL
POWER
www.littelfuse.com/pgr-6300
22
© 2010 Littelfuse
•
POWR-GARD
®
Protection Relay Catalog
POWR-GARD
®
Protection Relays, Monitors & Systems
Motor Protection – Advanced (PGR 6000 Family)
Features & Benefits
FeAtuReS
ieee #
BeneFitS
Overload
Current Unbalance/
Phase Loss/Phase Reverse
Overcurrent/Jam
PHASE CT
GF CT
Undercurrent
PHASE CT
Ground Fault
PHASE CT
49, 51
46
50, 51
37
50G/N,
M
51G/N
38, 49
RTD
59
27
PGA-0120
(Temperature Input Module)
47
87
POWR-GARD
®
Extends motor life and prevents insulation failures and fires
Prevents overheating and extends motor life
Prevents catastrophic failures and fires and extends motor life
Detects low-level or no-load conditions
Prevents catastrophic failures and fires
Optional RTD temperature protection (PGA-0120 module) for
high ambient or loss of ventilation protection
Prevents stress to insulation
Prevents a start attempt when it will damage the motor
Detects unhealthy supply voltage
Provides sensitive protection for high-resistance winding faults
Provides protection through starting, running, overload, and cooling cycles
Minimizes Arc-Flash hazards during maintenance
Simplifies the installation by reducing component count
Displays the measured and calculated motor parameters
On-board 64-event recorder helps with system diagnosis
Remotely view measured values, event records & reset trips
Internal circuits are conformally coated to protect against corrosion and moisture
RTD Temperature
Overvoltage
POWR-GARD
PGA-0CIM
(Current Input Module)
Undervoltage
Voltage Unbalance
POWR-GARD
Phase Differential
PGR-6200
(Motor Protection
Thermal Model
Dynamic
Relay)
Reduced Overcurrent Mode
Starter Control
Metering
Data Logging
Communications
Conformal Coating
®
®
MOTOR PROTECTION RELAYS
L1
L2
Simplified Circuit Diagram
A
PHASE CT
PHASE CT
PHASE CT
GF CT
Specifications
M
RTD
B
POWR-GARD
®
L1
L2
PGR-6300
(Control Unit)
2
PGA-0120
(Temperature
Input Module)
POWR-GARD
®
C
POWR-GARD
®
PGR-6300
(Operator Interface)
1
Ordering Information
cAtAloG/ SySteM nuMBeR
coMMunicAtionS
PGR-6300-01-00
PGR-6300-02-00
PGR-6300-03-00
PGR-6300-04-00
AcceSSoRieS
RS-485
RS-485 & DeviceNet
™
RS-485 & Profibus
®
RS-485 & Ethernet
RequiReMent
PAGe
PGC 2000 Series
PGC Family
PGA-0120
PGA-0140
Required
Required
Optional
Optional
38
38
41
41
Protective Functions
Overload (49, 51)
Unbalance (current) (46)
(IEEE Device Numbers)
Phase reverse (current) (46) Underspeed (14)
Overfrequency (81)
Starts per hour (66)
Overcurrent (50, 51)
Phase loss (voltage) (47)
Jam
Overvoltage (59)
Underfrequency (81)
Differential (87)
Ground fault (50G/N, 51G/N) Phase loss (current) (46)
Undercurrent (37)
Undervoltage (27)
Unbalance (voltage) (47)
Phase reverse (voltage) (47)
Failure to accelerate
Power factor (55)
RTD temperature (38, 49)
Input Voltage
65 – 265 Vac, 25 VA; 80-275 Vdc, 25 W
Power-Up Time
800 ms at 120 Vac
Ride-Through Time
100 ms minimum
24-Vdc Source
100 mA maximum
AC Measurements
True RMS and DFT, Peak, 16 samples/cycle, and
positive and negative sequence of fundamental
Frequency
50, 60 Hz or ASD
Inputs
Phase-current, Earth-leakage current, Phase-voltage,
7 digital, tachometer, 1 analog
Output Contacts
5 contacts — See Product Manual
Approvals
CSA certified to US and Canadian standards
Communications
Allen-Bradley
®
DFI and Modbus
®
RTU (Standard);
DeviceNet™, Profibus
®
, Ethernet (Optional)
Conformally Coated
Standard feature
Warranty
10 years
Mounting
(Control Unit)
Surface
(Operator Interface)
Panel
© 2010 Littelfuse
•
POWR-GARD
®
Protection Relay Catalog
23
www.littelfuse.com/pgr-6300
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