Intertie Protection Solutions

M-3410A, M-3520 and M-7651A Comparison

For intertie protection applications, learn about the benefits of using the M-7651A D-PAC compared to the M-3410A and M-3520 Intertie Protection Relay below.

 

M-3410A

Intertie/Generator Protection Relay

 

M-3520

Intertie Protection Relay

 


M-7651A

D-PAC: Protection, Automation and Control System for Power Distribution Applications

Applications

M-3410A

Intertie Protection
Small Generator Protection

M-3520

 Intertie Protection Relay

M-7651A

Feeder Protection
Bay Controller
Switchgear Protection
Intertie Protection
Small Generator Protection

Pricing

M-3410A

Standard price starting at $1,575.

M-3520

Standard price starting at $2,432.

M-7651A

Standard price starting at $2,145.

Features

M-3410A

Conformal Coated Circuit Boards

M-3520

IRIG B Time Synchronization 
Conformal Coated Circuit Boards

M-7651A

Hot Line Tag/Maintenance Mode
Cold Load Pickup
Load Encroachment Supervision
Phantom Voltage
Digital 86 Lockout
Fault Locator
Auto Restoration
Sensitive Ground Indicator
Conformal Coated Circuit Boards
Configurable Front HMI LEDs and Pushbuttons
Custom Curve Designer
Compare Settings Tool
Trip and Target Counters
IRIG B Time Synchronization
Arc Flash (Optional)

Protective Functions

Standard
Optional

 

M-3410A

M-3520

M-7651A

21 Phase Distance    
25 Sync Check
27 Undervoltage
27 B Bus Side Voltage Supervision    
27 G Undervoltage (Neutral)  
27PP Phase to Phase Undervoltage    
32 Directional Power
40 Loss of Field  
46 (DT/IT) Negative Sequence Overcurrent
47 Negative Sequence Overvoltage
50BF Breaker Failure
50 (G/N) Instantaneous/Definite Time Overcurrent (Neutral)
50GS Sensitive Ground Pickup
50P Instantaneous/Definite Time Overcurrent
50PAF Arc Flash Overcurrent
51G Inverse Time Ground Overcurrent
51N Inverse Time Residual Overcurrent  
51GS Sensitive Ground Inverse Time Overcurrent
51P Phase Inverse Time Overcurrent with Voltage Control/Restraint
51V Inverse Time Overcurrent (3-Phase with Voltage Control or Restraint)
59 Phase Overvoltage
59G Ground Overvoltage as 59Vz1
59N Residual Overvoltage
59I Peak Overvoltage
59PP Phase to Phase Overvoltage
60FL VT Fuse-Loss Detection
67G Ground Directional Overcurrent
67GS Sensitive Ground Directional Overcurrent
67N Residual Directional Overcurrent
67P Phase Directional Overcurrent
67Q Negative Sequence Directional Overcurrent
78 Out of Step Protection (Mho Characteristic)    
79 Reconnect Enable Time Delay
81 (O/U) Overfrequency/Underfrequency
81R Rate of Change of Frequency
AR Auto Restoration
BM Breaker Monitoring
CCM Close Circuit Monitoring
HLT/MM Hot-Line Tag/Maintenance Mode
TCM Trip (Aux Input) Circuit Monitor
THD/TDD Total Harmonic Distortion / Total Demand Distortion
AF Optical Arc Flash Protection
Metering and Monitoring

M-3410A

Voltage
Current
Real and Reactive Power
Power Factor
Frequency
Positive Sequence Impedance

M-3520

Voltage
Current
Real and Reactive Power
Power Factor
Frequency
Positive Sequence Impedance

M-7651A

Voltages (LL and LG)
Current
Active, reactive, apparent single‑ and three‑phase power, including directional
Single‑phase and three‑phase power factor
Frequency and phase sequence
Sequence current and voltage magnitudes
Ground or Sensitive Ground
Active energy received and delivered
Demand metering on per‑phase basis
Reactive energy in quadrants I and III
Power Supply Monitor
Trip/Close Coil Monitor
Breaker Wear Monitor

Power Quality

M-7651A

Power Quality
Harmonics to the 63rd
Calculated THD and TDD
PQ Viewer (ITIC Curve)
Sags, Swell and Sub-Synchronous Transient Detection

Recording

M-3410A

Sequence of Events (SOE) Recorder
32 Event Sequence of Events

Oscillograph Recorder
Up to 120 cycles of data

M-3520

Sequence of Events (SOE) Recorder
32 Event Sequence of Events

Oscillograph Recorder
Up to 170 cycles of data

M-7651A

Sequence of Events (SOE) Recorder
3500 Event Sequence of Events

Oscillograph Recorder
100 DFR quality records of up to 480 cycles each with an adjustable sampling rate up to 128 samples/cycle

Data Logging
Advanced Data Logging and Load Profile Recorder
Massive Gigabyte Store – 2 Year Data Log
ITIC Curve Violation Counters and Recording

General Specifications

M-3410A

Power Supply

Low/Mid
12/24 VDC
48 VDC

High
120 VAC
125 VDC

M-3520

Power Supply

Low/Mid
24/48 VDC

High
240 VAC
250 VDC

Separate Backup Power Input
Optional

M-7651A

Power Supply

Low/Mid
18-60 VDC

High
90-280 VAC
90-315 VDC

Separate Backup Power Input
11-14 VDC


M-3410A

Digital Inputs and Outputs

2 Programmable Inputs

2 Programmable Outputs

1 Self-Test Output

M-3520

Digital Inputs and Outputs

6 Programmable Inputs

8 Programmable Outputs

1 Self-Test Output

1 Power Supply Monitor Output

M-7651A

Digital Inputs and Outputs

4 Programmable Inputs (Standard)
12 Programmable Inputs (Optional Expanded IO)

4 Programmable Outputs (Standard)
12 Programmable Outputs (Optional Expanded IO)

1 Programmable Self-Test Output


M-3410A

AC Sensing Inputs

Frequency
50/60 Hz

Voltage
3
Rated ≤ 480VAC

Current
3 Phase
Phase CT Rating: 1A or 5A

M-3520

AC Sensing Inputs

Frequency
50/60 Hz

Voltage
5
Rated ≤ 240VAC

Current
3 Phase
Phase CT Rating: 1A or 5A

Ground CT Rating
1 A
5 A

M-7651A

AC Sensing Inputs

Frequency
50/60 Hz

Voltage
4
6 (Optional)

Low Energy Analog (LEA) Inputs per C37.92.
Configurations available: 4 LEA, 3 LEA + 1 VT, or 6 LEA.

Line to Neutral
Nominal: 120 VAC
Maximum Continuous: 300 VAC
Max Short Duration: 600 VAC for 10 s

Low Energy Analog
Nominal: 4 VAC
Maximum Continuous: 12 VAC
Max Short Duration: 300 VAC for 10 s

Current
3 Phase
Phase CT Rating: 1A or 5A

Ground CT Rating
1 A
5 A
200 mA SEF
50 mA SEF
10 mA SEF


M-7651A

Optional Special Functions

Multi-Shot Autoreclose
Three-Phase Ganged Operation

Arc Flash Protection
4 Arc Flash Inputs + 4 High Speed Outputs

Communication Options

M-3410A

COM Port 1
RS-232 (Front Port)

COM Port 2
RS-232 or RS-485

Protocols
MODBUS

M-3520

COM Port 1
RS-232 (Front Port)

COM Port 2
RS-232

COM Port 3
RS-485

Protocols
MODBUS

M-7651A

COM Port 1
TIA: RS-232 or RS-485
Serial Fiber Optic: V-pin or ST
Analog Output Module

COM Port 2
RJ-45 10/100 Mbps Ethernet
ST Fiber Optic 100 Base-FX

COM Port 3
RJ-45 10/100 Mbps Ethernet
ST Fiber Optic 100 Base-FX

COM Port 4
TIA: RS-232 or RS-485
Serial Fiber Optic: V-pin or ST
Analog Output Module

Front Port
USB and SD Card Slot

Protocols
DNP 3.0, MODBUS
IEC60870-5-104
IEC61850

Size and Mounting Options

M-3410A

Horizontal Mounting
Height: 3.46″
Width: 10.50″
Depth: 11.63″

M-3520

Horizontal Mounting
Height: 5.21″
Width: 19″
Depth: 10.2″

M-7651A

Horizontal Mounting
Height: 5.20″
Width: 9.47″
Depth: 6.22″


M-3410A

Vertical Mounting
Height: 10.50″
Width: 3.46″
Depth: 11.63″

M-3520

Vertical Mounting
Height: 19″
Width: 6.19″
Depth: 10.2″

M-7651A

Vertical Mounting
Height: 8.00″
Width: 6.00″
Depth: 6.22″


M-3410A

19″ Rack Mounting
Height: 3.46″ (2U)
Width: 19.0″
Depth: 11.63″

M-3520

19″ Rack Mounting
Height: 5.21″ (3RU)
Width: 19.0″
Depth: 10.2″

M-7651A

19″ Rack Mounting
Height: 5.20″ (3U)
Width: 19.00″
Depth: 6.22″
Requires optional B-1612 adapter.


M-3410A

Panel Mounting
Height: 12.20″
Width: 12.0″
Depth: 2.56″

M-7651A

Panel Mounting
Height: 12.20″
Width: 12.00″
Depth: 0.09″
Requires optional B-1665 adapter.


M-3410A

Surface Mounting
Height: 12.20″
Width: 12.0″
Depth: 2.56″

M-7651A

Surface Mounting
Height: 12.20″
Width: 12.00″
Depth: 0.09″
Requires optional B-1662 adapter.


M-3410A

M-0290 and M-0296 Adapter Plate
For Pride Protection Relay Replacement

Height: 17.25″
Width: 7.31″
Depth: 11.63″

M-7651A

M-0290 and M-0296 Adapter Plate
Consult Factory for More Info