Auxiliary Transformer - Ingeteam INGECON SUN PowerMax TL U B 1000 Vdc Series Installation And Operation Manual

Preparation for installing the unit
CAUTION
The distance between the inverter and the transformer must not be greater than 30 meters.

6.8.2. Auxiliary transformer

Some unit components such as fans, contactors or power supplies, require auxiliary power to operate. No electronic
equipment may be connected to the power grid. All auxiliary loads must be isolated from the power grid via a
galvanically isolated transformer.
This is why it is essential to install an auxiliary services transformer with galvanic isolation, suitable for the grid
with a single phase voltage of 220 V 50/60 Hz.
CAUTION
The Auxiliary service transformer must have galvanic insulation. It is forbidden to use autotransformers or other
devices without galvanic isolation to match the grid voltage to the single phase voltage required for the proper
operation of the unit.
Ingeteam accepts no liability for any consequences arising from non-compliance with these instructions.
It is possible to install the auxiliary services kit, and if you prefer you may install an auxiliary transformer acquired
from third parties. In this last example, you should follow the following guidelines.
The auxiliary transformer transforms the voltage from the power part of the unit to its control and current part.
The primary circuit is connected to the power input. We recommend installing protection and switching
components to protect this transformer.
In the event of using a residual current device between the transformer secondary connected to ground and the
auxiliary loads of the unit, said device shall be 300 mA, of industrial use, a selective version and super immune.
ABK2027IQE01_A - Installation and Operation Manual
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Auxiliary transformer
Residual current device
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Auxiliary consumptions
Medium voltage transformer
Circuit breaker (characteristic
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Ingeteam
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