Although the H201 sensor is not affected by the temperature, monitor its
temperature regularly.
13.1.20 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 5.5.7
- STempAlr HH (alarm set point); Temperature submenu; Section 5.5.3
- TempoAlr Delay; Temperature submenu; S Section 5.5.3
• Alarm cause(s): Temperature of the Hydran 201 sensor above the STempAlr
HH alarm set point
Exposing the H201 sensor to temperatures above the STempAlr
HH alarm set point can damage the sensor.
Proceed as follows:
1. The oil is probably too hot at the location where the H201 sensor is installed;
install the Hydran 201Ti at another location on the transformer tank, preferably at
the bottom. For details on typical installations, see Section 6.2.2.3.
2. If not already done, install the finned high temperature adaptor shown in Figure B
- 6; it can be purchased from General Electric.
13.1.21 SensTemp L
• Alarm type: Fail alarm
• Non-abbreviated description: Sensor temperature Low
• Priority: Low
• Parameter(s) involved:
- SensTemp L; SysOK Relay;FaultTrig. submenu; Section 5.5.7
- STempAlr L (alarm set point); Temperature submenu; Section 5.5.3
- TempoAlr Delay; Temperature submenu; Section 5.5.3
• Alarm cause(s): Temperature of the Hydran 201 sensor below the STempAlr L
alarm set point
Although the H201 sensor is not affected by the temperature, monitor its
temperature regularly.
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