GE Hydran 201i, Instruction Manual, Page: 228 / 300

Chapter 12 • Troubleshooting
12-12 Rev. 6, March 2011 Part 17997
12.1.20 SensTemp H
• Alarm type : Fail alarm
• Non-abbreviated description : Sensor temperature High
• Priority : Low
• Parameter(s) involved :
– SensTemp H ; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23
– STempAlr H (alarm set point); Temperature submenu; Section 4.5.3 on page 4-17
– TempoAlr Delay ; Temperature submenu; Section 4.5.3 on page 4-17
• Alarm cause(s) : Temperature of the Hydran 201 sensor above the STempAlr H alarm
set point
Although the H201 sensor is not affected by the temperature, monitor its temperature
regularly.
12.1.21 SensTemp HH
• Alarm type : Fail alarm
• Non-abbreviated description : Sensor temperature High-High
• Priority : Medium
• Parameter(s) involved :
– SensTemp HH ; SysOK Relay;FaultTrig. submenu; Section 4.5.7 on page 4-23
– STempAlr HH (alarm set point); Temperature submenu; Section 4.5.3 on page 4-17
– TempoAlr Delay ; Temperature submenu; Section 4.5.3 on page 4-17
• Alarm cause(s) : Temperature of the Hydran 201 sensor above the STempAlr HH alarm
set point
Proceed as follows:
1. The oil is probably too hot at the location where the H201 sensor is installed; install
the Hydran 201T
i at another location on the transformer tank, preferably at the
bottom. For details on typical installations, see Section 5.2.2.2 on page 5-10.
2. If not already done, install the finned, high-temperature adaptor shown in Figure B-6
on page B-4; it can be purchased from General Electric Canada.
CAUTION
WARNING
Exposing the H201 sensor to temperatures above the STempAlr HH
alarm set point can damage the sensor.