GE OTCF Instruction Manual page 3

Instruction Manual
Attention!
Anyone involved in the transportation, installation, commissioning, operation, and maintenance of
OTCF Capacitor Voltage Transformers (CVT) should read these instructions before taking any
action.
Never work on high voltage equipment without first having grounded its metallic parts, since it is
inherent to capacitances the possibility of electric charges accumulated with voltages at lethal
levels. In addition, an earth rod must remain connected to the line terminal while an operator
works on these transformers.
When an electrical test is going to be performed, the person responsible for supervising the test
assumes responsibility for carrying out the test in a safe manner in accordance with current
legislation. After the test, the operator must remove the ground rod so that the equipment is
ready for operation.
Note: To discharge high voltage equipment effectively proceed as follows:
A) Connect the ground rod to the line terminal (this will short circuit the entire unit and place the
line terminal in the ground potential) and,
B) Use other(s) ground rod connected to any intermediate metal part for a minimum of 30
seconds to make sure there is no residual electrical load on the unit.
This transformer is manufactured with controlled process which guarantees the highest level of
Quality. To maintain this high-Quality level throughout the service life of the CVT it is of the
utmost importance that all instructions in this manual be read and understood.
THE VERSIONS OF OTCF TRANSFORMERS TRANSPORTED IN VERTICAL POSITION CANNOT BE
STORED IN THE HORIZONTAL POSITION. DEPENDING ON THE PRODUCT VERSION, OTCF-245,
OTCF-420 AND OTCF-550 MAY BE TRANSPORTED AT HORIZONTAL POSITION. EVEN FOR THESE
CASES, THE TRANSFORMERS CAN NOT BE STORED IN A HORIZONTAL POSITION FOR MORE THAN
FOUR MONTHS. IF THE TIME OF TRANSPORTION AND STORAGE EXCEEDS THIS PERIOD, IT IS
MANDATORY TO UNPACK AND PUT THE TRANSFORMER INTO A VERTICAL POSITION,
ANCHORING ITS BASETANK TO THE GROUND. DO NOT ENERGIZE A TRANSFORMER IF IT HAS
BEEN KEPT IN HORIZONTAL POSITION DURING MORE THAN FOUR MONTHS.
Preliminary remarks
During receipt of the CVT, it is important to check the unpacking carefully to control the packaging
conditions and the CVT itself. Any irregularity must be noted on the transportation documents and
communications with responsible persons should be made shortly.
The insulator may be delivered in porcelain, avoid fast movements that may cause shocks and / or
blows.
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