ABB RET615 Product Manual page 49

ABB
Transformer Protection and Control
RET615
Product version: 4.0
Table 61. RTD/mA measurement (XRGGIO130)
Description
RTD inputs Supported RTD
sensors
Supported resistance
range
Maximum lead
resistance (three-
wire measurement)
Isolation
Response time
RTD/resistance
sensing current
Operation accuracy
mA inputs Supported current
range
Current input
impedance
Operation accuracy
Value
100 Ω platinum TCR 0.00385 (DIN 43760)
250 Ω platinum TCR 0.00385
100 Ω nickel TCR 0.00618 (DIN 43760)
120 Ω nickel TCR 0.00618
250 Ω nickel TCR 0.00618
10 Ω copper TCR 0.00427
0...2 kΩ
25 Ω per lead
2 kV (inputs to protective earth)
<4 s
Maximum 0.33 mA rms
Resistance Temperature
± 2.0% or ±1 Ω ±1°C
10 Ω copper: ±2°C
0...20 mA
44 Ω ± 0.1%
±0.5% or ±0.01 mA
1MRS756891 F
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