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Transcript
Protection Relays & Controls Motor Protection–Standard (PGR 6000 Family) PGR-6150 Series Motor Protection System Description The PGR-6150 Motor Protection System provides 13 protective functions by utilizing both current and temperature inputs. It is a modular system consisting of the control unit and an operator interface (PGR-6150-OPI). The OPI allows programming and displays metered values. The PGR-6150 is used to provide current- and temperature-based protection, metering and data logging for three-phase motors used in industrial environments. Current transformers are not required for currents up to 25 A. 1 Control Unit g g 1 g g g g g g Integrated phase CTs (external for applications > 25 A) Ground-fault CT input One PTC input and one programmable input Two programmable output contacts Eight status LEDs RS-485 Communications DIN-rail mountable PC interface software A Operator Interface (optional) A g g Simplified Circuit Diagram B g GF CT g g M g arge, bright, LCD display L (2 x 20 alphanumeric characters) Keypad for menu selection (system parameters, measurements, and fault reports) Displays metered values Six user-programmable LEDs Powered by Control Unit 1 meter (39-inch) connection cable included PTC L1 L2 Accessories PGR-6150 (Motor Protection System) A PGR-6150-OPI Operator Interface Optional Operator Interface for displaying metered values and programming B PGC-6000 Series Ground-Fault Transformer Optional zero-sequence current transformer, used to measure ground-fault current. Required for applications >25 A. 1 PGR-6150-OPI (Operator Interface) A Ordering Information Ordering Number CONTROL POWER PGR-6150-24 (Control Unit) 24/48 Vdc PGR-6150-120 (Control Unit) 120/240 Vac/dc PGR-6150-OPI (Operator Interface) Powered by Control Unit NOTE: External CTs can be used for full-load currents >25 A. accessories Requirement PGC-6000 Series Optional www.BDTIC.com/littelfuse © 2013 Littelfuse Protection Relays & Controls Littelfuse.com/pgr-6150 Rev: 4-A-050213 Based on Manual Rev 1 Protection Relays & Controls Motor Protection–Standard (PGR 6000 Family) PGR-6150 Series Motor Protection System Features & Benefits Features IEEE # BENEFITS 49, 51 No CTs required Adjustable trip settings Digital input Output contacts Overload Overcurrent/Jam Undercurrent Unbalance (current) Phase loss/Phase sequence PTC overtemperature Dynamic thermal model Communications No current transformers are required for currents < 25 A Adjustable overload trip class setting from 5 to 45 to match motor characteristics Programmable digital input Two programmable Form C output contacts for operation of separate annunciation and trip circuits Extends motor life and prevents insulation failures and fires Detects catastrophic failures and fires; extends motor life Detects low level or no-load conditions Prevents overheating due to unbalanced phases Detects unhealthy supply conditions Detect high ambient or blocked ventilation and single phasing; prevents shaft/pump damage Provides protection through starting, running, overload, and cooling cycles RS-485 communications to remotely display metered values 49, 51 50, 51 37 46 46 49 Dynamic Thermal Modeling Motor Traditional Overload , ed ife us r l ca to is mo e ag es m eas Da ecr d Temperature ! Maximum Operating Temperature ts wn se o re d d ad le lo coo r ve as lO h na tor tio o di re m a Tr efo b With Thermal Memory Motor PGR-6150 Temperature For every 10°C over insulation temperature rating the motor loses 50% of its life span. Without Thermal Memory Maximum Operating Temperature Time Time Wiring Diagram GROUND-FAULT CURRENT TRANSFORMER PGC-6000 SERIES Specifications (optional) B 3 PHASE CTs BUILT INTO RELAY. EXTERNAL CTs CONTROL REQUIRED FOR POWER FLA >25 A. TEMPERATURE INPUT + 3 L1 L2/N 4 DIGITAL INPUTS 5 6 GF CT 7 8 PTC 1 MOTOR PROTECTION SYSTEM PGR-6150 SERIES K1 12 14 RS-485 K2 11 22 FEEDER TO MOTOR With PGR-6150 the temperature is not exceeded, no damage to motor 24 21 – + 10 9 OPERATOR INTERFACE PGR-6150-OPI PTC overtemperature (49) Protective Functions Overload (49, 51) Failure to accelerate (IEEE Device Numbers) Phase sequence (46) Overcurrent (50, 51) RTD temperature (49) Jam Unbalance (current) (46) Ground fault (50G/N, 51G/N) Starts per hour (66) Undercurrent (37) Phase loss (current) (46) Input Voltage 110-230 Vac/Vdc; 24/48 Vdc, 5 W AC Measurements RMS, 16 samples/cycle Frequency 50, 60 Hz Dimensions (Control Unit) H 83 mm (3.3”); W 78 mm (3.1”); D 99 mm (3.9”) (Operator Interface) H 56 mm (2.2”); W 106 mm (4.2”); D 22.8 mm (0.9”) Output Contacts Two Form C Communications RS-485 with Modbus® RTU Approvals UL Listed (E353735), CE (European Union) Warranty 5 years MountingDIN (Control Unit); Panel (Operator Interface) (optional) A www.BDTIC.com/littelfuse © 2013 Littelfuse Protection Relays & Controls Littelfuse.com/pgr-6150 Rev: 4-A-050213 Based on Manual Rev 1