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DMP GBBR0 pages
DMP
Motor Protection
Monitoring & Protection for AC Motors
DESCRIPTION
The DMP Digital Motor Protection Relay is a multifunctional microprocessor based relay designed for the protection and
management of practically all sized motor at significant cost & space savings. DMP Relay was designed to provide customer
effective use of motors avoiding down time for nuisance tripping. To achieve this goal, the DMP performs the functions
classified as follows:
PROTECTIONS
ADDITIONAL FEATURES
•
(14)
Speed (External Module Required)
•
Automatic Restart after a power loss
•
(38)
Bearing RTD Over temperature (External Module Required)
•
•
(37)
Undercurrent
Auto-Transfer after Start Function for WYE-DELTA or
additional starters
•
(46)
Current Unbalance
•
Emergency Restart
•
(49)
Overload
•
Thermal Capacity Additional Protection for Alarm, Trip or
Control
•
(49)
Stator RTD Over temperature (External Module Required)
•
•
(51)
Phase Timed Overcurrent
•
(51G) Ground Overcurrent
Automatic Learn of Motor Parameters (Starting Thermal
Capacity, Starting Current, Starting Acceleration Time &
Average Motor Load)
•
(66)
Multiple Starts (Starts/hour) & Time Between Starts
•
•
(86)
Total Lockout
Minimization of the Start Block time after an Overload Trip
based on Learned Thermal Capacity.
•
Acceleration Timer
•
Real Time Clock
•
Mechanical Jam / Stalled Rotor
•
Events
•
Restart Block Timer
•
Capacity for future expansion with External Modules
•
DC power supply (on request)
•
Front Panel Installation
•
Reduced Size (96x48x100 mm)
•
3 Output contacts relays
•
1 Digital input for Contactor or Breaker Status
•
16x2 Alphanumerical LCD Backlight Display
•
Touch pad programming
•
2 led for quick motor status visualization
•
Indication and storage of fault conditions and their values
METERING
•
Motor Thermal Capacity Used
•
3 Phase & Ground RMS Currents
•
Average Current
•
Current Unbalance
•
Negative Sequence Current
•
Motor Load
•
Equivalent Motor Load based on Negative Sequence Factor
•
Estimated time to trip based on actual load
•
Motor Status
•
Motor Running Time
•
Motor Starts Counter
•
Stator, Bearing & Ambient Temperature (External Module Required)
•
Motor Speed (External Module Required)
COMMUNICATION
•
1 Infrared port for wireless communication
•
2 RS-485 ports for industrial wired communication
•
Modbus RTU protocol (functions 03h, 04h, 05h, 06h & 10h)
Protection relay
Quality certified ISO 9001:2000
DMP_GBBR_050805
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