Protection Relays & Controls Feeder Protection–Standard FPU-32 SERIES (PGR-7200) Feeder Protection Unit Description The FPU-32 Feeder Protection Unit provides integrated protection, metering, and data-logging functions. It is an excellent choice for retrofitting and upgrading older relays because of its compact size and ability to use existing CTs. The FPU-32 is used to protect distribution feeders in processing, manufacturing, petroleum, chemical, and wastewater treatment facilities. Features & Benefits FEATURES IEC & IEEE overcurrent protection curves Data logging BENEFITS Definite and inverse time settings for system coordination; prevents catastrophic failures Create distinctive settings for maintenance or for two different loads Maintenance mode setting to reduce the risk of arc-flash hazards On-board 100-event recorder and remote data logging helps with system diagnostics Overload Thermal protection for connected load Phase loss/Phase reverse (current) Unbalance (current) Detects unhealthy supply conditions Two setpoint groups NOTE: The FPU-32 consists of the Feeder Protection Unit (pictured above) and the MPU-CIM Current Input Module (not pictured). Simplified Circuit Diagram PHASE CT A GF CT B PHASE CT PHASE CT Reduced overcurrent mode Communications Prevents overheating due to unbalanced phases Remotely view measured values, event records & reset trips Accessories MPU-CIM (Current Input Module) A B FPU-32 L1 (Feeder Protection Unit) L2 Phase Current Transformers Phase CTs are required to detect phase currents. Ground-Fault Transformer Zero-sequence current transformer detects ground-fault current. Available with 5-A and 30-A primary ratings for low-level pickup. Specifications Ordering Information ORDERING NUMBER COMMUNICATIONS FPU-32-00-00 TIA-232 FPU-32-01-00 TIA-232 & RS-485 FPU-32-02-00 TIA-232 & DeviceNet™ FPU-32-04-00 TIA-232 & Ethernet NOTE: One of the following is required: MPU-CIM-00-00 Current Input Module, or MPU-CTI-RT-00 Current Input Module with ring-tonque terminals. ACCESSORIES REQUIREMENT Phase CTs Recommended Ground-Fault CT Optional MPU-16A-Y92A-96N Optional © 2014 Littelfuse Protection Relays & Controls Littelfuse.com/fpu-32 Protective Functions Overload (49, 51) Definite-time overcurrent (50, 51) (IEEE Device Numbers) Phase sequence (46) Inverse-time overcurrent (50, 51) Unbalance (46) Ground fault (50G/N, 51G/N) Phase loss (46) RTD/PTC temperature (49) Input Voltage 65-265 Vac, 30 VA; 80-275 Vdc, 25 W Power-Up Time 800 ms at 120 vac Ride-Through Time 100 ms minimum 24-Vdc Source 400 mA maximum AC Measurements True RMS and DFT, Peak 32 samples/cycle and positive and negative sequence of fundamental Frequency 50, 60 Hz Output Contacts Three Form C Approvals CSA certified, CE, C-Tick (Australian), UL Recognized Communications TIA-232 (standard); TIA-485, DeviceNet™, Ethernet (optional) Analog Output 4-20 mA, programmable Conformally Coated Standard feature Warranty 10 years Mounting (Control Unit) Panel (standard) Surface (with MPU-32-SMK converter kit) (Current Input Module) DIN, Surface Rev: 4-B-121214 Based on Manual Rev: 2-A-103014