Fronius Conformity VDE-AR-N 4105 2018 Fronius Eco 25.0-3-S – 27.0-3-S (E.4, E.5) Certificate [EN]
Unit Certificate
Manufacturer / applicant:
Fronius International GmbH
Günter Fronius Straße 1
4600 Wels
Austria
Type of power generation unit:
Photovoltaic (PV) inverter
Name of PGU:
ECO27.0-3-S
ECO25.0-3-S
Active power (nominal power at
reference conditions) [kW]:
27,0
25,0
Rated voltage:
230 / 400 V; N; PE
Firmware version:
beginning with V1.1.4.0
Connection rule:
VDE-AR-N 4105:2018-11 – Power generation systems connected to the low-voltage
distribution network
Technical minimum requirements for the connection to and parallel operation with lowvoltage distribution networks.
Applicable standards /
directives:
DIN VDE V 0124-100 (VDE V 0124-100):2020-06 – Grid integration of power
generation systems – low voltage
Test requirements for power generation units to be connected and operated parallel with
the low-voltage distribution networks
The above mentioned generation units have been tested and certified according to the test guideline VDE 0124-100. The
electrical properties required in the connection rule are satisfied.
• Verification of permissible system perturbations
• Verification of the symmetry characteristics of three-phase inverter modules
• Verification of the characteristics of the power generation unit on the network
• Verification of P
AV,E
surveillance
• Verification of dynamic network support
• Verification of the possibility to take part in the generation management / network security management
The certificate contains the following information:
• Technical specifications of the power generation units, the deployed auxiliary equipment and the software version used.
• Summarized information about the characteristics of the power generation unit (mode of operation)
BV project number:
15TH0304-VDE-0124-100:2020_0
Certification scheme:
NSOP-0032-DEU-ZE-V01
Certificate number:
U21-0399
Date of issue:
2021-05-20
Certification body
Thomas Lammel
Certification body Bureau Veritas Consumer Products Services Germany GmbH accredited according to DIN EN ISO/IEC 17065
A partial representation of the certificate requires the written permission of Bureau Veritas Consumer Products Services Germany GmbH
Annex to the Unit Certificate No. U21-0399
Page 2 of 9
E.5 Requirements for the test report for power generation units
Extract from the test report for unit certification Nr. 15TH0304-VDE-0124-100:2020_0
„Determination of electrical properties“
Description of the power generation unit
Manufacturer / applicant:
Fronius International GmbH
Günter Fronius Straße 1
4600 Wels
Austria
Type of power generation unit:
Photovoltaic (PV) inverter
Name of PGU:
ECO27.0-3-S
ECO25.0-3-S
Active power [kW]:
27,0
25,0
Apparent power [kVA]:
27,0
25,0
Rated voltage [V]:
230 / 400 V; N; PE
Rated current (AC) Ir [A]:
39,1
36,2
Initial short-current AC current [A]:
42,0
42,0
Firmware version:
beginning with V1.1.4.0
Measurement period:
2019-10-14 - 2020-01-07
Description of the structure of the power generation unit:
The power generation unit is equipped with a PV and line-side EMC filter. The power generation unit has no galvanic isolation
between DC input and AC output. Output switch-off is performed with single-fault tolerance thanks to the inverter bridge and two
series-connected relays. This enables a safe disconnection of the power generation unit from the network in case of error.
Active power
(results at nominal grid voltage)
Name of PGU:
ECO27.0-3-S
ECO25.0-3-S
P
Emax
[kW] at cos φ = 1
27,29
25,27
S
Emax
[kVA] at cos φ = 1
27,29
25,27
P
Emax
[kW] at cos φ
under-excite
= 0,9
24,43
22,62
S
Emax
[kVA] at cos φ
under-excite
= 0,9
27,28
25,26
P
Emax
[kW] at cos φ
over-excited
= 0,9
24,68
22,85
S
Emax
[kVA] at cos φ
over-excited
= 0,9
27,31
25,28
Note:
At cosφ = 1 the active power is equal to the rated apparent power.
For the implementation of a reactive power set point assignment, the active power is reduced if necessary.
Annex to the Unit Certificate No. U21-0399
Page 3 of 9
E.5 Requirements for the test report for power generation units
Extract from the test report for unit certification Nr. 15TH0304-VDE-0124-100:2020_0
„Determination of electrical properties“
Reactive power supply
Name of PGU:
ECO27.0-3-S
Active power
40 – 60 %P
Emax
S
Emax
cos φ
over-excite:
0,904
0,904
cos φ
under-excited
0,895
0,895
cos φ
setpoint
0,900
0,900
Active power
40 – 60 %P
Emax
S
Emax
cos φ
over-excite:
0,953
0,953
cos φ
under-excited
0,947
0,947
cos φ
setpoint
0,950
0,950
Reactive power transfer function – standard cos φ (P)-characteristic curve
Name of PGU:
ECO27.0-3-S
Active power P
Emax setpoint
[%]
10
20
30
40
50
60
70
80
90
100*
Active power P
Emax
[%]
N/A
19,7
29,4
39,8
49,9
59,2
68,6
78,9
89,2
91,1
cos φ
setpoint
of P
Emax
N/A
1,000
1,000
1,000
1,000
0,982
0,963
0,942
0,922
0,918
cos φ
measured
N/A
1,000
1,000
1,000
1,000
0,983
0,963
0,944
0,925
0,924
According to VDE 0124-100, an accuracy of cos φ 0,01 is required for testing the Reactive power transfer function. The standard
cos φ-(P)-characteristic curve is respected. To provide the set point of the reactive power, active power will be reduced at 100 %
P / P
n.
*For the implementation of a reactive power set point assignment, the active power is reduced.
Switching operations
L1
L2
L3
Switch-on without specification (to the primary energy source) ki
0,06
0,08
0,05
Switch-on at auxiliary conditions (of the primary energy source) ki
0,05
0,10
0,07
Switch-off at auxiliary conditions (of the primary energy source) ki
0,19
0,27
0,28
Worst value of all switching operations ki
0,19
0,27
0,28
Flicker for rated current >75A (at SCR = 20)
Line impedance angle ψk:
30°
50°
70°
85°
System flicker coefficient cψ:
3,62
4,88
6,49
7,21
Harmonics
The self-generation unit(s) are comply with DIN EN 61000-3-12 (VDE 0838-12).
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