12.1.20 Senstemp H; 12.1.21 Senstemp Hh - GE Hydran 201 i Instruction Manual

Chapter 12 • Troubleshooting

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
Exposing the H201 sensor to temperatures above the STempAlr HH
WARNING
CAUTION
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 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.
12-12 Rev. 6, March 2011 Part 17997