Some top things to know about DG Synchronization
Quite interestingly, synchronization
of the DG sets has always been a hot topic for electrical engineers out there.
To be precise, DG synchronization comes with a lot of complicated logic and
circuitry, which has made the system tough for engineers to comprehend the
subject fully.
Note that synchronization is the
procedure of operating two or more DG sets in parallel connection. This
operation is accomplished by minimizing the difference of phase-angle and
difference in frequency and matching phase sequence.
With huge advancements in technology
platforms, the synchronization process is made simpler now. Nowadays, manual
intervention is hardly required as DG syncing controllers can control the
process easily.
The DG
synchronization panel boasts of an easy-to-use interface, which makes
the sync process simpler.
Line Voltage
Monitor
Also abbreviated as LVM, Line
Voltage Monitor is a type of monitoring relay used for the identification of
the availability of supply in the bus. There are other types of LVM which come
with added features like reverse phase sequence checking, over-voltage
settings, etc. It is imperative to note that LVM provides feedback through the
NO and NC contacts.
DG Sync
Controller
One of the most important components
of the DG Sync process is the controller. To be precise, it is a
multi-functional and programmable controller used to control and sync DGs. It
also comes equipped with various other functionalities like a protection
mechanism for the engine and the alternator. The controller also has analog
output ports voltage signals. Here are some of the applications of DG sync
panels that you should be aware of.
✔
Engineering Units
✔
Hotels
✔
Processing Plants
✔ Telecom Sector
Advantages
of DG Syncing in Parallel Operations
Here is the list of benefits of
deploying DG Sync Panels in parallel operations.
✔
One can get the continuous backup of power
supply with DG syncing in parallel operations
✔
Saves a great deal of fuel
✔
On the basis of the load condition, the
requisite number of DG panels can be operated
✔ When one panel fails,
power can be drawn from the other sets without any issues whatsoever
Importance
of Speed Bias
Note that the speed bias signal is
the voltage signal provided to the engine speed governor to control the
engine’s speed. This is usually done to match with the frequency emitted by the
DG sync panels.
The DG
synchronizing panel suppliers nowadays equip the panels with CAN
communication channels with the help of which the DG panel can communicate with
the engine. Furthermore, electrically operated ACBs are also a popular option
for the incomer and utility feeders.
It is worth noting here that for
automatic syncing, pre-programmed microprocessor-based relays are widely used.
What’s more, the whole process is executed stepwise without any human
intervention.
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