ABB Relion 630 Series RET630 Product Manual page 20

Transformer Protection and Control
RET630
Product version: 1.1
Table 11. RTD inputs
Description
RTD Supported RTD sensor
inputs
Supported resistance range
Maximum leadresistance
(three-wire measurement)
Isolation
RTD / resistance sensing
current
Operation accuracy /
temperature
Operation accuracy /
Resistance
20
Response time
Value
100 Ω platinum
250 Ω platinum
100 Ω nickel
120 Ω nickel
10 Ω copper
0...10 kΩ
100 Ω platinum
250 Ω platinum
100 Ω nickel
120 Ω nickel
10 Ω copper
Resistance
4 kV
Maximum 0.275 mA rms
• ±1°C
• ±2°C
• ±4°C
• ±5°C
±2.5 Ω
±1.25%
< Filter time +350 ms
1MRS756978 D
Issued: 2011-05-18
TCR 0.00385
(DIN 43760)
TCR 0.00385
TCR 0.00618
(DIN 43760)
TCR 0.00618
TCR 0.00427
25 Ω per lead
25 Ω per lead
25 Ω per lead
25 Ω per lead
2.5 Ω per lead
25 Ω per lead
Inputs to all
outputs and
protective earth
Pt and Ni sensors
for measuring
range -40°C to
200°C and -40°C
to 70°C ambient
temperature
CU sensor for
measuring range
-40°C to 200°C in
room temperature
CU sensors -40°C
to 70°C ambient
temperature
From -40°C to
-100 ºC of
measurement
range
0-400 Ω range
400 Ω -10K Ω
ohms range
ABB