Battery; Replace Battery For Rh/Rl Power Supply - GE N60 Instruction Manual
Network stability and
synchrophasor measurement system
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Also See for N60:
- Instruction manual (666 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (544 pages)
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CHAPTER 9: MAINTENANCE
2.
With power to the unit off, disconnect individually the connections from the module before removing the module from
the chassis.
3.
To properly remove a module, pull simultaneously the ejector/inserter clips, located at the top and bottom of the
module. Record the original location of the module to ensure that the same or replacement module is inserted into the
correct slot. Modules with current input provide automatic shorting of external CT circuits.
4.
To properly insert a module, ensure that the correct module type is inserted into the correct slot position. The ejector/
inserter clips located at the top and at the bottom of each module must be in the disengaged position as the module
is smoothly inserted into the slot. Once the clips have cleared the raised edge of the chassis, engage the clips
simultaneously. When the clips have locked into position, the module is fully inserted.
The new CT/VT modules can only be used with new CPUs; similarly, old CT/VT modules can only be used with
old CPUs. In the event that there is a mismatch between the CPU and CT/VT module, the relay does not function
NOTE
and a DSP ERROR or HARDWARE MISMATCH error displays.
9.6 Battery
A battery powers the real time clock on startup of the device.
When required, the battery can be replaced. Because the power supply module contains the battery and there are two
power supply options, two procedures are possible. To determine which procedure to use, check the power supply module
or use the photographs here.
9.6.1 Replace battery for RH/RL power supply
When required, the battery can be replaced. The power supply module contains the battery.
To avoid injury, ensure that the unit has been powered off for a minimum of three minutes
before replacing the battery.
Risk of fire if battery is replaced with incorrect type or polarity.
To replace the battery:
1.
Turn off the power to the unit.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Figure 9-5: Removing module (standard faceplate)
BATTERY
9
9-7
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