Preliminary Checks - Cramaco G2R 400 Serie Manual De Instrucciones

CRAMACO
®
Rev 0
3.7.2.
According to standards, the generator's terminals are marked in alphabetical order. When the turning direction is the
indicated in 3.7.1; the terminals "U", "V" and "W" go with the chronological sequence. This rule is valid for all the
machines, separately of it capacity or voltage and even when the machine has been designed to rotate in the
CONTERCLOCKWISE direction.
3.7.3.
The self excitation is independent from the rotation direction.
4. STARTING UP

4.1 PRELIMINARY CHECKS

4.1.1.
Before to put the generator on service, after the assembling for it rotation's test, or after a long period of non use, out
of service, the machine must be clean with conscience. Take out any residual material, from the shipping that could
be stick on the machine.
4.1.2.
Make sure that the generator turns freely over the bearing.
4.1.3.
The generator should be fitted appropriately to the foundation.
4.1.4.
Eliminate all fixation's elements used for the shipping
4.1.5.
Make sure that all the coupling parts are well positioned and, the maintenance instructions has been observed
4.1.6.
Verify and check that all electric connections has been done following the supplied diagrams. Check if the
connection of the generator's terminals are the correct one
4.1.7.
If the Gen Set has an adjuster by remote control installed, check out for a correct installation
4.1.8.
Verify that terminals that connect to the main are correctly arranged and fixed to the terminal board, so will avoid
flashes or short-circuits
4.1.9.
Check the generator ground.
4.1.10.
Verify the resistance of isolation of all the winding with a megohmeter of 500 to 1000 volts. Minimum value
1Mohm. This check has to be done after a long period without using the machine, before turn it on again.
4.2. STARTING UP
After all inspections has been done carefully, the generator is ready to be put on service for first time. When It's
rotating to get the nominal velocity, Its field will be exciting. When the generator is on nominal velocity, it's ready to
operate.
4.3. ADJUSTMENT OF VOLTAGE
In the testing room the manufacturer tested the generator, adjusting the voltage at the require value on the order.
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