ABB Relion 670 Series Product Manual page 51

Generator protection REG670
Version 2.2
IEC06000182 V2 EN-US
Figure 12. A 1/2 x 19" size IED side-by-side with RHGS6.
Table 10. Case dimensions
Case size A B
(mm)/
(inches)
6U, 1/2 x 19" 265.9/ 223.7/
10.47 8.81
6U, 3/4 x 19" 265.9/ 335.9/
10.47 13.23
6U, 1/1 x 19" 265.9/ 448.0/
10.47 17.65
The G and H dimensions are defined by the 19" rack mounting kit.
Mounting alternatives
• 19" rack mounting kit
• Flush mounting kit with cut-out dimensions:
– 1/2 case size (h) 254.3 mm/10.01" (w) 210.1 mm/
8.27"
– 1/1 case size (h) 254.3 mm/10.01" (w) 434.7 mm/
17.11"
• Wall mounting kit
See ordering for details about available mounting
alternatives.
Injection equipment hardware
Injection unit REX060
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.
Hitachi Power Grids
IEC06000182-2-en.vsd
C D E
247.5/ 255.0/ 205.8/
9.74 10.04 8.10
247.5/ 255.0/ 318.0/
9.74 10.04 12.52
247.5/ 255.0/ 430.1/
9.74 10.04 16.86
GUID-59174783-57D0-4F39-AE7F-B59FA88CB230 v1
© Copyright 2017 Hitachi Power Grids. All rights reserved
F G H
190.5/ 466.5/ 232.5/
7.50 18.36 9.15
190.5/ 466.5/ 232.5/
7.50 18.36 9.15
190.5/ 466.5/ 232.5/
7.50 18.36 9.15
Stator injection module SIM
M16079-3 v14
The SIM module is installed into the REX060 enclosure.
The SIM module generates a square wave voltage signal
for injection into the stator circuit via the neutral point
VT/NGT. The SIM module measures the voltage and
current from the injected signal and the IED
consecutively calculates the stator to earth impedance.
If the calculated impedance is lower than the preset
value an ALARM and/or TRIP output is set.
Rotor injection module RIM
The RIM module is installed into the REX060 enclosure.
The RIM module generates a square wave voltage signal
for injection into the rotor circuit via a capacitor unit
REX061 for isolation. The RIM module measures the
voltage and current from the injected signal and the IED
consecutively calculates the rotor to earth impedance. If
the calculated impedance is lower than the preset value
an ALARM and/or TRIP output is set.
Coupling capacitor unit REX061
REX061 isolates the injection circuit from the rotor
exciter voltage.
1MRK 502 074-BEN M
I
482.6/
19
482.6/
19
482.6/
19
GUID-CF2B2004-97E9-4593-95CB-2E86A01EA779 v2
GUID-B2CA6C9E-2A24-483C-B9C2-47FFF2BBB283 v2
GUID-39A03C0F-44DC-47DD-9D7E-66C8292CD3A8 v1
M15243-12 v11
51