Step-Up And Step-Down Transformer; Step-Up Transformer - Deif GPC-3 Designers Reference Handbook

GPC-3 DRH 4189340587 UK
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The above is a simplified scenario.

4.20 Step-up and step-down transformer

4.20.1 Step-up transformer

In certain cases, the use of a generator with step-up transformer (called a block) is required. This may be to
adapt to the closest grid voltage or to step up the voltage to minimise the losses in cables and also to bring
down the cable size. The applications where a step-up transformer is needed, is supported by the ML-2. The
functions available in this application are:
1. Synchronising with or without phase angle compensation
2. Voltage measurement displayed
3. Generator protections
4. Busbar protections
A diagram of a block is shown below
Generator/transformer block:
DEIF A/S
3 DG Scenario
5 6 7 8 9 10 11 12 13
Time
Gen 1
Gen 2
Gen 3
14 15
Additional functions
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