This document is proprietary. Any dispatch or disclosure of content is authorized only after written authorization by PULS GmbH.

All parameters are specified at 400V, 2.5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

Specification: SP-PAS395 Rev: 3.1

Date: 2013/01/19

2-14

1

Functional Description

-

The charger is designed to charge EDLC (electrical double layer capacitors commonly

known as Ultracaps, Supercaps or Greencaps) with a constant current – constant voltage

characteristic (float charge mode).

-

The charger is suitable to be used in a permanently spinning rotor-hub of a wind turbine.

-

The charger is suitable for flange mounting. Any mounting orientation is allowed.

-

Most of the heat will be conducted through the base-plate of the charger. A good thermal

connection to the cabinet or an external heatsink can improve the MTBF and life time

expectancy.

-

The charger is equipped with an internal fan which turns on when necessary.

-

The charger comprises an internal diode in series to the positive output voltage path in

order to protect against back-feeding voltages.

-

The input-, output and signal terminals are pluggable. Hot-swap ability is not supported.

-

A voltage applied on the inhibit terminal stops the charging mode.

-

The charger contains a “Fully-Charged” and an “Output-OK” relay contact.

-

A redundant control circuit monitors the end-of-charge voltage and switches the charger

off in case of a too high voltage. After such an event, automatic start attempts occur until

the failure is cleared.