In order to be sure that all voltages arrive in the right polarity following can be done

In order to be sure that all voltages arrive in the right polarity following can be done.

Before any use of power.

Use of a battery 9 volts and of an analog dc millivoltmeter. .

The circuit breaker Q12 should be ON in the cell 1, in the switchgear 11 kv

circuit breakers 5F22 should be ON in the Wartsilla synchro panel.

Prepare a battery 9 volts with two half meter wires; red for positive and black for negative.

First objective ;verify the polarity of BUSSBAR L1 + and BUSSBAR L2 – and verify that this voltage is arriving where expected.

Remove the circuit breaker of the motor C 11 kv in the cell 4
connect the dc multivoltmeter. to 5F22 L1+ and 5F22-in synchro panel
FLASH + 9 volts on the BUSSBAR L1 and – 9VOLTS on BUSSBAR L2. in the cell 4

observe and note what you see

You will get 90 millivolts but the important is to see the polarity. through the transient..

if there is a direct movement of the switch , it is what is expected.. NOTE IT;

You can re-insert the circuit-breaker in the cell 4.

Do the same with the generator A;

But without extracting the circuit breaker 11 kv of the cell 7.

Open the circuit breaker Q12 in the cell 1, and the circuit breaker 5F22 in synchro.
Close de circuit-breaker Q12 in the cell 7 and the circuit breaker 4F23 in A WARTSILLA;
Connect the terminal + of the DC millivolts_meter on 4F22+ L1 and – on 4F22-
Go to the terminals of the generator A in the container and apply 9+ on L1 and 9- in the middle phase..Red wire in L1+, Black wire in L2-
Flash the 9vdc and let observe what happens on the millivolmeter.
If the switch is going direct , everything is like expected.
If not the verification of polarities has been useful and avoided big problems.

Do the same with the generator B;

But without extracting the circuit breaker 11 kv of the cell 9.

Open the circuit breaker Q12 in the cell 1, and the circuit breaker 5F22 in synchro.
Close de circuit-breaker Q12 in the cell 9 and the circuit breaker 6F22 in B WARTSILLA;
Connect the terminal + of the DC millivolts_meter on 6F22+ L1 and – on 6F22-
Go to the terminals of the generator B in the container and apply 9+ on L1 and 9- in the middle phase..Red wire in L1+, Black wire in L2-
Flash the 9vdc and let observe what happens on the millivolmeter.
If the switch is going direct , everything is like expected.
If not the verification of polarities has been useful and avoided big problems.

Do the same with the generators G;

But without extracting the circuit breaker 11 kv of the cell 3.

Open the circuit breaker Q12 in the cell 1, and the circuit breaker 5F22 in synchro.
open the circuit breaker 5F21 in synchro WARTSILLA;
Connect the terminal + of the DC millivolts_meter on 5F21+ L1 and – on 5F21-
Go to the terminals of the relay 5K1 in the panel synchro and apply 9+ on 5K1_53 and 9- to 5K1_43-
Flash the 9vdc and let observe what happens on the millivolmeter.
If the switch is going direct , everything is like expected.
If not the verification of polarities has been useful and avoided big problems.

HAVING DONE THE TEST OF POLARITIES IT IS POSSIBLE NOW TO CONTINUE TO TEST THE FOLLOWING

There are several options, depending on which is the more applicable.

If, bussbar G is connected to the bussbar ROSA , we have 48 V dc for the switchgears and the panels Wartsilla.

the circuit -breakers A and B are inserted but in the position CB_out-drawed., so that they will not enter on the bussbar if closed.

select MANUAL SYNCHRONIZATION

select A to be synchronized so that relay 5K2 is ON

and will send BUSSBAR voltage and GEN A voltage to the synchronoscope, the voltmeters and the frequencemeters.

It is now possible to simulate the closing of the cb breakers A

Injecting the voltages 5F21 L1 to 4F22 L1 and 5F22 L1

Injecting the voltages 5F21 L2 to 4F22 L2 and 5F22 L2

The breaker should get the conditions to close

But it is not connected to be busbarr.

select MANUAL SYNCHRONIZATION

select B to be synchronized so that relay 5K3 is ON

and will send BUSSBAR voltage and GEN B voltage to the synchronoscope, the voltmeters and the frequencemeters.

It is now possible to simulate the closing of the cb breakers B

Injecting the voltages 5F21 L1 to 6F22 L1 and 6F22 L1

Injecting the voltages 5F21 L2 to 6F22 L2 and 6F22 L2

The breaker should get the conditions to close

But it is not connected to be busbarr.

THE DIRECTION OF ROTATION OF THE PHASES HAS TO BE DONE BEFORE PROCEEDING OF THE PARALLELE OPERATION OF A and B

The test of closure of the breaker GIRASSOL with the synchronoscope becomes possible.

B or A being in operation and connected to the bussbar, simulate the closure of the CB 11 kV cell 3 of Girassol being first drawed out but inserted.

If the synchronoscope accept the closure, you are near of being successful.

SETTINGS OF THE SYNCHRONOSCOPE

THE SCANNING AND RESOLUTION TIME OF THE PLCs should be read in the PLCs

And included to 70 ms of the breaker, 10 ms for the relay sending the closure signal to the PLCs, 10 ms for output of the PLC and 10 ms for the relay in the cell 11 kv, resuming at least 100 ms as closure time without the value read in the PLC;


MINUS 30°	BUSSBAR