RTD/mA measurement (XRGGIO130) - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 24.05.2023

RET615 Product Guide

Table 1. RTD/mA measurement (XRGGIO130)
Description Value
RTD inputs Supported RTD sensors

100 Ω platinum

250 Ω platinum

100 Ω nickel

120 Ω nickel

250 Ω nickel

10 Ω copper

TCR 0.00385 (DIN 43760)

TCR 0.00385

TCR 0.00618 (DIN 43760)

TCR 0.00618

TCR 0.00618

TCR 0.00427

Supported resistance range 0...2 kΩ
Maximum lead resistance (three-wire measurement) 25 Ω per lead
Isolation

2 kV (inputs to protective earth)

Response time <4 s
RTD/resistance sensing current Maximum 0.33 mA rms
Operation accuracy Resistance Temperature
± 2.0% or ±1 Ω

±1°C

10 Ω copper: ±2°C

mA inputs Supported current range 0…20 mA
Current input impedance 44 Ω ± 0.1%
Operation accuracy ±0.5% or ±0.01 mA