Danfoss Vacon NXP, Руководство по конструкции

Страница: 18 / 26

7.3 Cooling System Requirements
Table 9: Requirements for Air Cooling
Cooling type Requirement
Natural convection Sufficient airflow through inductors, when mounted on top of each other.
Forced air cooling Nominal airflow 3 m/s.
External fan/blower is required.
Table 10: Requirements for Liquid Cooling
Requirement Specification
Coolant flow rate 6 l/min
Maximum operating system pressure 6 bar
Maximum pressure Maximum peak 30 bar/60 s according to UL61800-5-1
Pressure drop (at flow rate 6 l/min) 0.2 bar
Nominal temperature of coolant 5–45 °C
Maximum temperature of coolant 70 °C
Allowed coolants
Drinking water according to 98/83/EY
Demineralized water
Non-corrosive
Propylene glycol or ethylene glycol mixture with the preceding water qualities
Cooling system connections Following the drive system connections
Cooling system materials
Stainless steel: AISI304, AISI316
Aluminum: Corrosion resistant
Glycol-tolerant plastics
Not allowed: Copper, brass, PVC
7.4 Technical Data
Some of the DC filters with rated voltage 750 V DC can be used at nominal 1025 V DC system voltage due to the high impedance
value. See the tables in
4 Selection .
Table 11: Technical Data for Air-cooled DC Filters
Code Num-
ber Filter type code Manufacturer part
code Rated
voltage
[V DC] Cooling Nominal
current
at 50 °C
[A]
Power
loss at
20 °C
[W] Protec-
tion
rating Switching
frequency
[kHz]
181B5954 LDC-0010-6-0-APt 40277-SET-PT100 1025 AN 10 60 IP00 5
181B5955 LDC-0010-6-0-ATr 40277-SET-THER-
MIK
181B5956 LDC-0020-5-0-APt 40260-SET-PT100 750 AN 20 110 IP00 5
181B5957 LDC-0020-5-0-ATr 40260-SET-THER-
MIK
181B5958 LDC-0030-6-0-APt 56606-SET-PT100 1025 AN 30 200 IP00 5
AJ377845348678en-000101 / 172F4785 18 | Danfoss A/S © 2023.01
Specifications
DC Filters
Design Guide