Ordering Numbers, 690 V, 50 Hz; Calculation Of The Exact Filter Size Needed - Danfoss AHF 005 Operating Instructions Manual

2 Description

2.1.6 Ordering numbers, 690 V, 50 Hz

I Typical Motor
AHF,N
[AMP]
2
43 A
72 A
101 A
144 A
180 A
217 A
289 A
324 A
370 A
Table 2.6: AHF005 and AHF010, 690V, 50 Hz
⋆ Please note that the matching of the typical Danfoss frequency converter and filter is pre-calculated based on 690V and assuming typical motor
load. FC 300 is based on an 160% torque application, while FC 100 and FC 200 series are based on 110% torque application.
The pre-calculated filter current may be varying from the input current ratings of FC 100, FC 200 and FC 300 series as stated in the respective
operating instructions, as these numbers are based on different operating conditions.

2.1.7 Calculation of the exact filter size needed

For optimal performance the harmonic filter should be sized for the mains input current to the frequency converter, i.e. the input current drawn based
on the expected load of the frequency converter and not the size of the frequency converter itself!
The mains input current to the frequency converter (I
φ)) of the motor. Both data are normally printed on the nameplate of the motor. In the case where the nominal motor voltage (U
actual mains-mains voltage (U
I FC I M
= 1.1 ×
, L , N
The harmonic filter chosen must have a nominal current (I
If several frequency converters are to be connected to the same filter, the harmonic filter must be sized according to the sum of the calculated mains
currents.
If the harmonic filter is sized for the load, and the motor of the corresponding frequency converter is changed, the current must be
re-calculated to avoid overload of the harmonic filter.
10
Ordering Number
[kW] AHF 005
37, 45 130B2328
55, 75 130B2330
90 130B2331
110, 132 130B2333
160 130B2334
200 130B2335
250 130B2331 + 130B2333
315 130B2333 + 130B2334
400 130B23314+ 130B2335
) can by calculated using the nominal motor current (I
FC,L
) the calculated current must be corrected with the ratio between these voltages as shown in the equation below.
L
(( ) / ( ))
Cos ( ϕ ) × U M U L
×
, N
AHF,N
MG.80.C1.02 - VLT
Danfoss Frequency converter series *
AQUA, HVAC,
AHF 010
Automation HO
130B2293
130B2295
130B2296
130B2298
130B2299
130B2300
130B2301
130B2302
130B2304
) equal to or larger than the calculated frequency converter mains input current (I
®
is a registered Danfoss trademark
AHF 005/010 Operating Instructions
Automation NO
P37K-P45K P37K
P55-P75K P45K-P55K
P90K-P110 P75K-P90K
P132 P110
P160 P132
P200 P160
P250 P200
P315 P250
) and displacement power factor (Cos
M,N
) is unequal to the
M,N
).
FC,L