Water Cooling Unit (Wcu); Figure 3-13 Wcu (Typical Design) - ABB PCS6000 User Manual

3.2.4. Water cooling unit (WCU)

The main tasks of the WCU are:
– Ensuring constant water pressure, flow and temperature
– Interfacing to the external heat exchanger equipment
– De-aeration of cooling water circuit
– De-ionizing the cooling water
A soft starter for the cooling pumps is available as option.
The WCU can be specified for connection of the external heat exchanger on the top
(standard) or bottom.
The WCU varies depending on the converter size.
1
2
3
Figure 3–13 WCU (typical design)
1) Inlet from re-cooler on top
2) Expansion vessel (optional)
3) Cooling water pump 1
4) Outlet to re-cooler on top
PRODUCT
PCS6000
DOCUMENT KIND
User manual
4
5
6
7
5) Interface box to control
6) Ion exchanger vessel
7) Cooling water pump 2 (optional)
DOCUMENT ID.
3BHS600000 E40
PRODUCT DESCRIPTION
REV. LANG. PAGE
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