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Components of a Generator Monitoring System

Generators are a critical part of any robust telecom network design. They are typically the 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 LNX. Newer generators may also come with their own generator monitoring system software. However this software should not replace a central alarm master.


Remote monitoring generators

1. Generator Running

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

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

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:

Example of a System that Remote Monitors Generator Alarms

Monitor your generator
Example of a remote site monitoring system.

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).

Take a look at the newer version of the NetGuardian 832A.

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.

Learn more about UPS battery backup monitoring

Use MODBUS to monitor your generator Output

Remote monitor your generator with Modbus
You can use the Modbus protocol to remote monitor your generator.

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 monitoring 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.

Take a look at the newer version of the T/Mon master station.

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.

Generator Monitoring Tech-Brief

Download this Tech-Brief Now

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 the 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 helpful information

Set Up 'Low Fuel' Alerts with NetGuardian Accumulation Timers

Remote Monitor and Control Your Remote Site Propane Tanks Using a TempDefender

Learn More

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