Characteristic Data Of Water-Cooled Units, Types J, K And L - Siemens 6SE7087-8KN50 Instructions De Service

Technical Data
11.1.7

Characteristic data of water-cooled units, types J, K and L

Background
NOTE
MLFB
6SE7035-1TJ 0-1AA0
6SE7036-0TJ 0-1AA0
6SE7037-0TJ 0-1AA0
6SE7037-0TK 0-1AA0
6SE7038-6TK 0-1AA0
6SE7041-1TK 0-1AA0
6SE7041-3TL 0-1AA0
11-22
The tables listed below give the rated water flow volume in l/min and
the pressure difference (in Pa) across the heat sink at rated flow
volume.
The water-cooled units have a lower power loss (i.e. a higher efficiency)
than the air-cooled units. The power loss is given in table 11-8.
MASTERDRIVES with water-cooling have the same power rating as
the air-cooled units. Since the thermal resistance of the heat sinks for
the IGBT is distinctly better than that attainable with air-cooling, the
modules are operated with a junction temperature that is 20 K lower.
The result of this is that the module losses are about 5 % lower.
This effect also gives the modules a good life expectancy.
Many units are also equipped with small built-in fans. The lower power
losses of these can also be taken into account.
In the tables below, the data for new units or more exact data are
printed in bold type.
Flow Differential
pressure
[l/min] [Pa]
24
16900
26
19840
30 27270
30
9300
40
16560
46
21900
51
12000
= 5 corresponds to MASTERDRIVES Motion Control
= 7 corresponds to MASTERDRIVES Motion Control Performance 2
Table 11-8 Characteristic data of DC units, 510 V to 650 V
* The sound level was determined under the following boundary conditions:
Distance to the unit 1 m, height above floor level 1 m, distance to the next reflecting
wall 4 m, room height 6m.
The chassis were installed in Siemens 8MC cabinets without any special
soundproofing measures.
Sound Sound Sound
level level level
IP20 IP42 IP54
[dBA]* [dBA]* [dBA]*
76 75 72
76 75 72
76 75 72
76 76 73
76 76 73
76 76 73
75 74 71
6SE7087-7KN50
Operating Instructions
08.2008
Water Power
heating loss
[k] [kW]
4 5.58
4 6.39
4.5 7.74
5 9.05
5 10.4
5 10.7
5 12.3
Siemens AG
SIMOVERT MASTERDRIVES