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What to do to synchronize a generator to the grid?

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Question ajoutée par mina ayoub , General Maintenance Engineer , Sheeba and AlNAhr AlKhaled Garments
Date de publication: 2015/09/29
Waleed Mahmoud
par Waleed Mahmoud , Design & Review Electrical Engineer , Zuhair Fayez Partnership Consultants

In order to synchronize a generator to the grid, four conditions must be met:

  1. Phase Sequence
  2. Voltage Magnitude
  3. Frequency
  4. Phase Angle

Chetan Pawar
par Chetan Pawar , Technical Executive , JLL

All Above condition is must technically at the same time you need to tale the approval from grid.

Masruddin bakshi
par Masruddin bakshi , Contractual Engineer (Electrical) , PWD, Govt. of West Bengal

To synchronize a generator with a grid the following condition is essential.

A Frequency

B Phase sequence

C Phase angle

D Same voltage

To know above condition we use Synchroscope or using three lamp method.

Mohamed Meçabih
par Mohamed Meçabih , Engineer , SONATRACH

In order to connect the synchronous Generators to the power grid without large current and powertransients, the amplitude, frequency, sequence, and phase of the SG no-load voltages have to coincide with the same parameters of the power grid.

As the power switch does not react instantaneously, some transients will always occur. However, they have to be limited.

Automatic synchronization of the SG to the power grid is today performed through coordinated speed (frequency and phase) and field current control for synchronization and P and Q control.

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