Cooling System Requirements; Technical Data - Danfoss VACON NXP Design Manual

DC Filters
Design Guide

7.3 Cooling System Requirements

Table 9: Requirements for Air Cooling
Cooling type
Natural convection
Forced air cooling
Table 10: Requirements for Liquid Cooling
Requirement
Coolant flow rate
Maximum operating system pressure
Maximum pressure
Pressure drop (at flow rate 6 l/min)
Nominal temperature of coolant
Maximum temperature of coolant
Allowed coolants
Cooling system connections
Cooling system materials

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- Filter type code
ber
181B5954 LDC-0010-6-0-APt
181B5955 LDC-0010-6-0-ATr
181B5956 LDC-0020-5-0-APt
181B5957 LDC-0020-5-0-ATr
181B5958 LDC-0030-6-0-APt
18 | Danfoss A/S © 2023.01
Requirement
Sufficient airflow through inductors, when mounted on top of each other.
Nominal airflow 3 m/s.
External fan/blower is required.
Specification
6 l/min
6 bar
Maximum peak 30 bar/60 s according to UL61800-5-1
0.2 bar
5–45 °C
70 °C
Drinking water according to 98/83/EY
Demineralized water
Non-corrosive
Propylene glycol or ethylene glycol mixture with the preceding water qualities
Following the drive system connections
Stainless steel: AISI304, AISI316
Aluminum: Corrosion resistant
Glycol-tolerant plastics
Not allowed: Copper, brass, PVC
Manufacturer part
code
40277-SET-PT100
40277-SET-THER-
MIK
40260-SET-PT100
40260-SET-THER-
MIK
56606-SET-PT100
Rated Cooling Nominal
voltage current
[V DC] at 50 °C
[A]
1025 AN 10
750 AN 20
1025 AN 30
Specifications
Power Protec- Switching
loss at tion frequency
20 °C rating [kHz]
[W]
60 IP00 5
110 IP00 5
200 IP00 5
AJ377845348678en-000101 / 172F4785