Combi Unit

Protect your transformer 100% of the time, even when your surge arresters are blown

The Combi Unit is a surge arrester and fuse system that not only enables the fast, easy, safe and cost-effective replacement of surge arresters but also prevents your transformers from failing by surge causes.

Explanation Video

Benefits

TRANSFORMER AND LOAD
AWAYS PROTECTED

Ensure that the transformer is protected
100% of the time, even when the arrester
is expired, reducing equipment losses

Improves maintenance in 5 ways, lower losses in several areas showing
outstanding return on ivestments

OPEX COSTS REDUCTION
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Prevents the need for the worker to get close to the risk zone, allowing teams to execute the job from the ground with a hot stick

SAFENESS IMPROVEMENT

NO MAINTENANCE COSTS
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The devices do not require any maintenance on themselves over the 25 years lifespan period and do not increase any OPEX costs

MANAGEMENT
CONTROL

Enables management to know if the field has actually executed the maintenance properly, preventing field errors

Lower both the frequency and duration of outages, increase disponibility and reliability on power networks

SAIDI & SAIFI LEVELS IMPROVEMENT

Prevents the need for disconnecting the transformer to replace the arrester when the live line clamp is the same for all equipment

PREVENTS OUTAGES
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LABOR COSTS REDUCTION

Allows the arrester replacement job to be done by dead line teams, prevents the need of a truck, uses less equipment and fewer people

ARRESTER AWAYS IN PARALLEL
WITH THE FUSE

Ensures the parallel configuration is used so
that the arrester also protect the fuse,
reducing fuse operations and outages

Allows the surge arrester replacement in less than one minute, equals to only 2,5% of the original job time

TIME SAVING

The surge arrester drops when expired, allowing
the inspector to easy glance and the management to control networks protection level

EASY GLANCE SIGNALING
PREVENT HIGH-VALUE LOSSES

Allows better control and increases protection against lightning, saving transformers, reclosers and voltage regulators

Real Case Installation