Rack mounting protection relay with local HMI and RTXP 24 test switch - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Installation Manual - REX640 Protection and control - Relion Protection and Control - PCL4 - IEC - ANSI - 16.02.2023

REX640 Installation Manual

REX640 has two rack mounting options for the relay, HMI and RTXP 24 test switch. Contents of the installation kits are identical apart from the 6U or 7U high rack plates.

Table 1. Rack mounting installation kits

Part number

Description

2RCA051498A0001

19 inch relay rack mounting for relay and LHMI, including a provision for RTXP 24 test switch, 6U 1

2RCA051503A0001

19 inch relay rack mounting for relay and LHMI, including a provision for RTXP 24 test switch, 7U 1
  1. Mount the LHMI and the mounting bracket to the rack plate.
    1. Attach the 6U or 7U rack plate to the rack frame.
    2. Mount the LHMI with its own installation brackets to the LHMI cutout.
  2. Mount the relay.
    1. Mount the relay to the door mounting bracket using M5 screws.
    2. Mount the relay and door mounting bracket assembly to the rack plate using M6 screws.
  3. Mount the RTXP 24 assembly part to the rack plate using hexagon nuts and spring washers.
  4. Install the RJ-45 coupler with a cable to the panel cutout and connect the cable to the LHMI’s service port X1.2.
  5. Install the RTXP test switch to the assembly part using torx pan head tapping screw ST3.5x13.
    Figure 1. Installation kit contents
    image/svg+xml457863221
    1
    Door mounting bracket
    2
    M6 screws
    3
    6U or 7U rack plate
    4
    M5 screws
    5
    M3 screws
    6
    RTXP 24 mounting part
    7
    ST3.5 screws
    8
    RJ-45 coupler with a cable
1 Powder painting, RAL 7035 flat. (Gloss: 60L 65-85 acc. to EN-ISO 2813)