Connect The Current Transformer - SMA FUEL SAVE CONTROLLER 2.0 Instrucciones De Instalación

SMA Solar Technology AG
Current measurement or voltage measurement
Current measurement 3 (see Section 6.7.2, page 29)
Current measurement 4 (see Section 6.7.2, page 29)
Voltage measurement 2 (see Section 6.7.3, page 32)
Current measurement 5 (see Section 6.7.2, page 29)
Current measurement 6 (see Section 6.7.2, page 29)
Voltage measurement 3 (see Section 6.7.3, page 32)
6.7.2

Connect the current transformer

Danger to life from electric shock due to live voltage
Danger of electric shock if work is executed incorrectly or under fault conditions. An electric shock can lead to death
or serious injury.
• Disconnect the supply voltage and the measuring cables for the current- and voltage measurement before
performing any work on the Fuel Save Controller.
• Observe the five safety rules when disconnecting the supply voltage:
– Disconnect from voltage sources.
– Ensure that the device cannot be reconnected.
– Ensure that no voltage is present.
– Ground and short-circuit the device.
– Cover and isolate any adjacent live components.
Damage of the gensets due to undetected reverse feeding when using summation current transformers
When using a summation current transformer for the monitoring of several gensets, only the total current of all
gensets is recorded. The currents of the individual gensets can not be monitored and possible reverse feeding
therefore not be detected. Gensets can be damaged due to reverse feeding of electrical power.
• If summation current transformers are used for the monitoring of several gensets, observe the following
requirements:
– Only use gensets with reverse power protection which fulfill the reverse power limits of the
Fuel Save Controller (see Section 11, page 51).
– Activate the reverse power protection before commissioning the Fuel Save Controller (see documentation
of the genset manufacturer).
– Ensure that the reverse power protection of the gensets is always active when operating the
Fuel Save Controller.
Installation Manual
6 Electrical Connection
Internal measurement mod-
ule
Measurement module 2
Measurement module 3
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