Components of a Generator Monitoring System

Generators are a critical part of any robust telecom network design. They are typically third rung in a power systems ladder. Commercial power is the primary source for normal operation, followed by your battery and standby generators.

Generators vary largely not only in size, shape, and power output but also in the technology they use to report alarms. Older generation equipment and basic models use relays to report alarms. These generators require an RTU to report alarms back to an SNMP alarm master.

Newer models use higher level protocols, typically SNMP to provide more detailed status and alarm information. These alarms can be directly monitored by an existing alarm master or a DPS T/Mon NOC. Newer generators may also come with their own generator monitoring system software. However this software should not replace a central alarm master.

1. Generator Running

Take Care of Your Generators

Will report whenever the generator is running. If the generator is running, chances are very good you have a commercial
power failure. Most companies and NOC managers have experienced a network outage because nobody knew the generator was running.

The generator running alarm can also be used as a rough indicator of how long the generator had been running.
Lastly, this alarm leaves you with plenty of time to notify commercial
power companies.

2. Low Fuel

Low Fuel

Most modern generators give you the ability to observe fuel levels. When the generator senses that it has low fuel, it will report this alarm. Generally when you see these alarms, you want to act quickly.

3. Oil Pressure

No Oil

Alarms when the oil pressure is low. Machine 101 - Oil protects moving parts. No oil - you will have a generator that needs some very expensive
repairs. Collectively using these alarm elements allows you to:

How to Monitor Generator Alarms

Monitor Generator Alarms, Battery Alarms, Intrusion Alarms, and High/Low Fuel Alarms
Monitor Generator Alarms, Battery Alarms, Intrusion Alarms, and High/Low Fueld Alarms.

How This Application Works:

Equipment Used.

The application features the NetGuardian 832A G4, 19" Wire Wrap Back Panel, and 19" Pluggable Back Panel as options. This version of the NetGuardian G4 will support wide range on each of the power inputs (-24VDC & - 48VDC).

The NetGuardian G4 essentially functions as a remote generator monitoring panel. The G4 allows you to monitor generator load, battery, intrusion and low/high fuel alarms at your remote locations. With the built-in web browser, you will be able to view those alarms at any time. The NetGuardian G4's email and text messaging notifications can also alert techs directly when an alarm is detected.

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Use MODBUS to monitor your generator Output

How This Application Works:

Equipment Used:

Both of these remote monitoring systems will allow the T/Mon NOC to receive generator alarm messages. The first option features the MODBUS Software Module that will load onto your T/Mon NOC. This wireless monioring solution enables your T/Mon NOC to accept discrete and analog alarms from multiple MODBUS devices. The T/Mon NOC will turn the alarm info into alarm messages and report to your techs.

The second option consists of the NetDog 82IP. This solution will monitor your generator's contact closures (discretes) and analog voltage values. It will report those as DCPx traps via LAN to your T/Mon NOC. Installation of the NetDog 82IP will be a breeze with its built-in barrier strip in front of the unit.

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Generator Monitoring Tech-Brief

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Learn how to reduce the effects of power outages and operate your remote sites more efficiently. These three events need to be monitored to ensure proper operation of your generator units. This tech-brief is a quick primer into the importance of generator monitoring.

Specific generator monitoring solutions:


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Other information you may find helpful regarding generator monitoring:

Client Best Practices: Using Derived Alarms for Generator Monitoring
Monitor Generator, Battery, Intrusion, and Low Fuel Alarms
"Set Up 'Low Fuel' Alerts with NetGuardian Accumulation Timers..."
Use MODBUS to Monitor Your Generator Output, Fuel, & Status
Monitor Your Generator and Building Alarms With the NetDog 82IP G2...
Propane Monitoring
Remote Monitor and Control Your Remote Site Propane Tanks Using a TempDefender
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