Siemens SINAMICS G130 Engineering Manual page 464

SINAMICS S120 Cabinet Modules
Engineering Information
- Coolant volumetric flow rate dV/dt:
- Active Line Connection Module IP55 / 690 V / 1700 kW / 1560 A / 100 % load
- Motor Module IP55 / 690 V / 1000 kW / 1025 A / 85 % load
- Motor Module IP55 / 690 V / 1000 kW / 1025 A / 85 % load
- Power loss P
- Active Line Connection Module IP55 / 690 V / 1700 kW / 1560 A / 100 % load
- Motor Module IP55 / 690 V / 1000 kW / 1025 A / 85 % load
- Motor Module IP55 / 690 V / 1000 kW / 1025 A / 85 % load
Active Line Connection Module
4. Calculating the total volumetric flow rate and the total power loss in the deionized water circuit
The coolant volumetric flow rates dV/dt and the power losses P
Modules are added:
- Total volumetric flow rate dV/dt
- Total power loss P
5. Selecting the Heat Exchanger Module
The Heat Exchanger Module is selected on the basis of the volumetric flow rate and the power loss.
- dV/dt
HEM deion rated
- P
HEM rated
The Heat Exchanger Module with the following data is therefore selected from Catalog D 21.3:
- Rated cooling capacity:
- Rated flow rate in deionized water circuit:
6. Calculating the required pressure difference between the inflow and return flow lines of the deionized
water circuit
The required pressure difference Δp between the inflow and return flow lines of the deionized water circuit depends
on the concentration of the anti-freeze. With the minimum ambient temperature of -5 °C specified for this example,
the minimum concentration is required. The required pressure difference setting is therefore
The required pressure difference Δp between the inflow and return flow lines of the deionized water circuit must be
adjusted during commissioning by means of the ball valve in the inflow line of the deionized water circuit in the Heat
Exchanger Module.
SINAMICS Engineering Manual – November 2015
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Ó Siemens AG
à dV/dt = 70 l/min according to Catalog D 21.3 (irrespective of the load)
à dV/dt = 27 l/min according to Catalog D 21.3 (irrespective of the load)
à dV/dt = 27 l/min according to Catalog D 21.3 (irrespective of the load)
transferred to the coolant:
L
à P (100 %) = 1.0 x 39.2 kW = 39.2 kW acc. to Catalog D 21.3 and derating curve below
L
à P (85 %) = 0.85 x 11.2 kW = 9.5 kW acc. to Catalog D 21.3 and derating curve below
L
à P (85 %) = 0.85 x 11.2 kW = 9.5 kW acc. to Catalog D 21.3 and derating curve below
L
:
total
dV/dt = (70 + 27 + 27) l/min = 124 l/min
total
:
L total
P = (39.2 + 9.5 + 9.5) kW = 58.2 kW
L total
≥ dV/dt
total
≥ P
L total
Δp ≥ 130 - 200 kPa (1.3 – 2.0 bar)
Motor Module
transferred to the coolant of all S120 Cabinet
L
à dV/dt ≥ 124 l/min
HEM deion rated
à P ≥ 58.2 kW
HEM rated
72 kW ≥ 58.2 kW
197 l/min ≥ 124 l/min