Filter
Top Products
7-6 489 Generator Management Relay GE Multilin
7.2 HARDWARE FUNCTIONAL TESTS 7 TESTING
7
7.2.6 RTD ACCURACY
The specification for RTD input accuracy is ±2° for Platinum/Nickel and ±5° for Copper. Perform the steps below.
1. Alter the following setpoints:
S8 RTD TEMPERATURE Ö RTD TYPE Ö STATOR RTD TYPE: "100 Ohm Platinum" (select desired type)
S8 RTD TEMPERATURE ÖØ RTD #1 Ö RTD #1 APPLICATION: "Stator" (repeat for RTDs 2 to 12)
2. Measured values should be ±2°C / ±4°F for platinum/nickel and ±5°C / ±9°F for copper. Alter the resistance applied to
the RTD inputs as shown below to simulate RTDs and verify accuracy. View the measured values in
A2 METERING DATA
ÖØ TEMPERATURE.
APPLIED
RESISTANCE
100 Ω PLATINUM
EXPECTED RTD
TEMPERATURE READING
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
°C °F 123456789101112
84.27 Ω –40°C –40°F
100.00 Ω 0°C 32°F
119.39 Ω 50°C 122°F
138.50 Ω 100°C 212°F
157.32 Ω 150°C 302°F
175.84 Ω 200°C 392°F
194.08 Ω 250°C 482°F
APPLIED
RESISTANCE
120 Ω NICKEL
EXPECTED RTD
TEMPERATURE READING
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
°C °F 123456789101112
92.76 Ω –40°C –40°F
120.00 Ω 0°C 32°F
157.74 Ω 50°C 122°F
200.64 Ω 100°C 212°F
248.95 Ω 150°C 302°F
303.46 Ω 200°C 392°F
366.53 Ω 250°C 482°F
APPLIED
RESISTANCE
100 Ω NICKEL
EXPECTED RTD
TEMPERATURE READING
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
°C °F 123456789101112
77.30 Ω –40°C –40°F
100.00 Ω 0°C 32°F
131.45 Ω 50°C 122°F
167.20 Ω 100°C 212°F
207.45 Ω 150°C 302°F
252.88 Ω 200°C 392°F
305.44 Ω 250°C 482°F
APPLIED
RESISTANCE
10 Ω COPPER
EXPECTED RTD
TEMPERATURE READING
MEASURED RTD TEMPEATURE
SELECT ONE: ____°C ____°F
°C °F 123456789101112
7.49 Ω –40°C –40°F
9.04 Ω 0°C 32°F
10.97 Ω 50°C 122°F
12.90 Ω 100°C 212°F
14.83 Ω 150°C 302°F
16.78 Ω 200°C 392°F
18.73 Ω 250°C 482°F