KAESER KOMPRESSOREN EPC 1000-2-G, Сборка и руководство по эксплуатации

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2.12 Network Conditions
The machines listed in table are intended for operation with a public power supply with a network
impedance at the transfer point (house connection) of maximum Z
max
[Ohm].
The operator must ensure that the machines are only connected to a supply network that meets these
requirements.
The local electricity utility will provide information on the network impedance.
2.12.1 Mains conditions at 400V/3/50Hz
Model Start configuration Starts [1/h] Z
max
[Ω]
EPC 150–2 Direct online 20 0.767
Star-delta —
EPC 230–2 Direct online 20 0.360
Star-delta 1.266
EPC 420–2 Direct online 15 0.099
Star-delta 0.366
EPC 550–2 Direct online 15 0.077
Star-delta 0.280
EPC 750–2 Direct online 15 0.048
Star-delta 0.178
EPC 1000–2 Direct online 15 0.029
Star-delta 0.104
Tab. 25 Network impedance
2.13 Machine duty cycle
Calculating the cycling period:
Cycling time = time under load + time at standstill
Calculating the duty cycle:
Duty cycle [%] =
time under load
time under load + standstill time
x 100
Example
12 minutes
20 minutes
x 100 % = 60 %
The following values are valid for:
■ 20 °C ambient temperature
■ 30 % relative humidity
■ 1013 mbar air pressure
Model Permissible duty cycle 2 [%] Cycling period 1 [min]
EPC 150-2-G ≤ 70 3–30
2 Technical Specification
2.12 Network Conditions
12
Assembly and operating manual 2-stage piston compressor
EPC-2-G
No.: 9_5753_04 E