Fronius Conformity VDE-AR-N 4105 2018 NA protection Fronius Symo 3.0-3-M - 8.2-3-M (E.6, E.7) Certificate [EN]
Certificate for the NS protection
Manufacturer /
applicant:
Fronius International GmbH
Günter Fronius Straße 1
4600 Wels
Austria
Type of grid and
plant protection:
Integrated NS protection
Assigned to
generation unit
type:
Symo 8.2-3-M, Symo 8.0-3-M, Symo 7.0-3-M, Symo 6.7-3-M, Symo 6.0-3-M,
Symo 5.5-3-M, Symo 5.0-3-M, Symo 4.5-3-M, Symo 3.7-3-M, Symo 3.0-3-M
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 low-voltage
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 grid and plant protection has been tested and certified according to the test guideline VDE 0124-
100. The electrical properties required in the connection rule are satisfied.
• Setting values and disconnect times
• Properly functioning functional chain "NS protection – interface switch"
• Technical requirements of the switching device
• Integrated interface switch that can also be used in conjunction with a central interface protection relay
(VDE-AR-N 4105:2018-11 §6.4.1)
• Active detection of unintended islanding
• Single-fault tolerance
The certificate contains the following information:
• Technical specifications of the NS protection and corresponding power generation types
• Setting values of the protection functions
• Trip values of the protection functions
BV project number:
19TH0406-VDE-0124-100:2020_0
Certification program:
NSOP-0032-DEU-ZE-V01
Certificate number:
U21-0406
Date of issue:
2021-05-18
Certification body
Thomas Lammel
Certification body of 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 Certificate for the NS-protection No. U21-0406
Page 2 of 2
E.7 Requirements for the test report for the NS protection
Extract from test report for NS protection Nr. 19TH0406-VDE-0124-100:2020_0
“Determination of electrical properties”
NS protection as integrated NS protection
Manufacturer / applicant:
Fronius International GmbH
Günter Fronius Straße 1
4600 Wels
Austria
Type of grid and plant protection:
Integrated NS protection
Assigned to generation unit type:
Symo 8.2-3-M, Symo 8.0-3-M, Symo 7.0-3-M, Symo 6.7-3-M, Symo 6.0-3-M,
Symo 5.5-3-M, Symo 5.0-3-M, Symo 4.5-3-M, Symo 3.7-3-M, Symo 3.0-3-M
Firmware version:
Beginning with V1.1.4.0
Integrated interface switch:
Type of switching equipment 1: Relay
Type of switching equipment 2: Relay
Measurement period:
2019-09-20 – 2020-02-13
Protection function
Setting value
Trip value
Disconnection time a
Voltage drop protection U <
184,0 V
183,0 V
3,013 s
Voltage drop protection U <<
103,5 V
103,8 V
0,317 s
Rise-in-voltage protection U>
253,0 V
--
427 sb
Rise-in-voltage protection U>>
287,5 V
287,8 V
0,114 s
Frequency decrease protection f<
47,50 Hz
47,51 Hz
0,122 s
Frequency increase protection f>
51,50 Hz
51,52 Hz
0,126 s
a
proper time of interface switch 10 ms
b
longest disconnection of the rise-in-voltage protection as a moving 10-minute-average, tested according clause 5.7.7 Protection
devices and protection settings of VDE 0124-100
The disconnect time (sum of trip time of grid and plant protection and delay time of interface switch) must not exceed 200 ms.
A check of the overall functional chain "NS protection – interface switch" resulted in a successful disconnection.
The above mentioned grid and plant protection with the assigned power generation units has met the requirements for islanding
detection with the help of the active method (resonant circuit test).
The above mentioned NS protection meets the requirements for synchronization.
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