Injection Unit Rex060 From Rear Side - ABB REG670 Technical Manual

Section 22
Injection equipment hardware
22.1.2
22.1.2.1
22.2
22.2.1
22.2.2
1226
be installed to get a open air convection and prevent contact with
combustible material to the surface.

Injection unit REX060 from rear side

Injection unit REX060
IED and
Injection
connectors
Top view connector
HMI and Logic
IEC11000018-1-en.vsd
IEC11000018 V1 EN
Figure 568: Rear and top view of injection unit REX060
Injection unit REX060
Introduction
The injection unit REX060 is used to inject voltage and current signals to the generator
or motor stator and rotor circuits. REX060 generates two square wave signals with
different frequencies for injection into the stator and rotor circuits respectively. The
response from the injected voltage and currents are then measured by the REX060 unit
and amplified to a level suitable for the analog voltage inputs of IED.
Design
REX060 consists of a standard enclosure (6U, 1/2 x 19"). In this enclosure, the
modules for stator (SIM) and/or rotor (RIM) earth fault protection are installed. The
stator injection transformer and the power supply are also installed inside the
enclosure.
On the front of the enclosure there is a backlit LCD, control buttons and a key switch.
Power
Back view
X11
1
1
5
18
X62
1
5
BackPlane
Front-plate
1MRK502052-UEN B
Front view
X61
X81
1
18
X82
1
5
Technical manual
Injection switch