ABB Relion 670 2.0 IEC Series, Руководство по установке

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REX062 Shunt resistor unit connections
Table 18: Injection via shunt resistors connection X1
No Signal
1 -
2 Injection
3 -
4 Injection return
5 -
6 Current sense output
7 -
8 Current sense output
9 Injection input, External shunt
10 Injection input return, External shunt
X1 connector. Connect each signal connector terminal of screw compression type
with one 0.14 to 6 mm
2
(AWG 35 - AWG 3) wire or with two 0.14 to 1.5 mm
2
(AWG
35 - AWG 15) wires.
Protective conductor terminal must be connected to the cubicle or station protective
earthing system. Electrical codes and standards require that protective earth cables are
green/yellow conductors with a cross section area of at least 2.5 mm
2
(AWG 14). The
cubicle must be properly connected to the station earthing system. Use a conductor
with a core cross section area of at least 4 mm
2
(AWG 12).
6.2.3 Connecting and setting voltage inputs
There are two different methods for connecting the IED to the REX060 injection unit
if both stator and rotor protection is used: either using two analog input channels on
the IED for both rotor and stator voltage and current measurements, or using two
analog IED input channels for the rotor and another two IED channels for the stator
measurements.
1. The same voltage input is used for both stator and rotor voltage measurement and
another voltage input is used for both stator and rotor current measurement. The
REX060 outputs to the IED are connected in series.
Section 6
1MRK514019-UEN A
Connecting
68 670 series 2.0 IEC
Installation manual