Replacing Overvoltage Protection; Shutting Down For Maintenance / Troubleshooting; Disconnecting Connections - Kaco blueplanet 87.0 TL3 Betriebsanleitung

7.4

Replacing overvoltage protection

Replace the DC overvoltage protection
F NOTE: If a fault appears on the status display of the overvoltage protection
mode, the overvoltage protection should be replaced.
↻ NOTE: A check has been performed to ensure there is no AC/DC voltage
present.
1 Opening the device Opening the device [See section 6.2} Page 16].
2 Unlock faulty modules via the locking latch.
3 Remove faulty modules individually from the DC base and replace with a mod-
ule of the same type.
NOTE: The coding at the base plug-in position must match the coding on the
module.
4 Insert the DC overvoltage protection modules into the DC base one after an-
other.
5 Secure new modules using the locking latch.
6 Ensure that all protective elements are properly secured.
» Proceed with the installation of the device.
7.5

Shutting down for maintenance / troubleshooting

NOTE: Shutdown sequence
1 Switch off the grid voltage by turning off the external circuit breakers.
2 Disconnect the DC side using the external DC isolator switch.
DANGER! The DC cables are still live
» After shutdown, wait 5 minutes before opening the device.
7.6

Disconnecting connections

7.6.1 AC connection
↻ It has been ensured that there is no AC/DC voltage present.
↻ Housing cover removed and set to one side.
1 Detach cables (L1/L2/L3) from the AC connection terminal [ W_17].
2 Detach the PE line from the earthing bolt [ W_17].
3 Loosen the cable fitting and pull the cables out through the cable fitting [ W_46].
NOTE: If the AC cable does not fit through the cable fitting due to the size of the cable lug, then the AC cable must
be severed at the cable lug.
4 Place protective caps on the ends of the AC cables.
7.6.2 DC connection
↻ A check has been performed to ensure there is no DC voltage present.
↻ Housing cover removed and set to one side.
1 Detach the line ends from the PV generator at the DC+ and DC- busbar [ W_17].
2 Place the fastening elements back in the fittings bag.
3 Loosen the cable fitting and pull the DC cable through the cable fitting [ W_46].
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
KACO blueplanet 137 TL3 KACO blueplanaet 150 TL3
2
3
1
Fig. 25: Inserting overvoltage mod-
ules
1 DC base
2 DC overvoltage protection
module (3 slots)
3 Jumper
Page 25