Feeder Management Relay
Model Number: PSA25
An educational relay module for investigating feeder protection, monitoring, and relay performance.
Overview
A feeder management relay presented in an educational format. Supplied with TecQuipment’s Protection and Relay Test Set (PSL50), the relay enables investigations into the protection and monitoring of overhead lines and underground cables. The relay is housed in a robust enclosure with carrying handle. The module mounts on the desk area of the Protection and Relay Test Set, and connects to it using a multi-core cable and safety leads. This relay is also an optional ancillary for selected products in TecQuipment’s Power Systems range.
Features
- Modern industrial feeder management relay presented in an educational format
- Supplied with TecQuipment’s Protection and Relay Test Set (PSL50)
- Optional ancillary for selected Power Systems products
- Robust enclosure with carrying handle
- Connections via safety sockets
- Enables a wide variety of tests and investigations
- Based on the Micom P142 industrial relay
- Programmable from the relay keypad and display or via Micom S1 software
- Demonstrates the latest relay technology
- Supports fault and disturbance recording
- Allows testing of two relay modules at the same time with the Protection and Relay Test Set
Specifications
- Relay basis: Micom P142 industrial relay
- Mounting: Mounts on the desk area of the Protection and Relay Test Set
- Connection method: Multi-core cable and safety leads
- Experimental circuit interface: Current transformers with ratio to suit the relay inputs
- Over-current protection: Four independent stages of directional/non-directional over-current (ANSI 50, ANSI 51, ANSI 67)
- IDMT settings: First two stages independently settable to any of ten IDMT curves; remaining two stages have a direct time characteristic
- Earth fault protection: Directional/non-directional earth fault (ANSI 50N, ANSI 51N, ANSI 67N)
- Sensitive earth fault: Sensitive directional/non-directional earth fault
- Wattmetric earth fault: ANSI 32N
- Restricted earth fault: ANSI 64N
- Negative sequence overcurrent: Directional/non-directional (ANSI 46, ANSI 67)
- Thermal overload protection: ANSI 49
- Voltage protection: Under and overvoltage (ANSI 27, ANSI 59)
- Residual overvoltage: ANSI 59N
- Negative sequence overvoltage: ANSI 47
- Frequency protection: Under and over frequency
- Additional functions: Broken conductor, selectable blocking, fault and disturbance records
Learning Outcomes
- Investigations into the performance and characteristics of an industrial feeder management relay
- Effect of current and voltage transformer ratio, connection, and rating on protective relays
Items Included
- Feeder management relay module
- Robust enclosure with carrying handle
- Multi-core cable
- Safety leads
- Protection and Relay Test Set (PSL50)