Download Test report of plants of over 16A and max 75 A

Appendix 2
Test Report for inverters larger than 16 A per. phase and up to and
including 75 A per. phase, connected to the low voltage grid.
Identifikation
Inverter:
Description:
Manufactors name and adress
Brand / Logo
Phone / Fax
E-mail
Brand / model
Nominal voltage
Dok. 98992/12, Sag 10/405
Page 1 of 6
2.1 Voltage Quality
Harmonic currents
Harmonic limit for three-phase equipment
with regards to EN 61000-3-12
Limit for individual harmonic current In/I1a [%]
(Minimum short circuit current, Rsce = 33)
Harmonic
Limit
I5
I7
I9
I11
I13
THD
PWHD
10,7
7,2
3,8
3,1
2
13
22
Test value
a) Details in EN 61000-3-12
Fast voltage changes and flicker
Fast voltage changes and flicker with regards to EN 61000-3-11
Maximum voltage change % of nominel voltage at 100% power and
flicker
Limit
Start
Stop
3.3 %
max 500 ms
3.3 %
max 500 ms
Running
Pst = 1,0
Plt = 0,65
Test value
2.2 Coupling and syncronizing
Can the system start and produce continuously within the normal production area only limited by protection settings mentioned below in 2.7 ?
Does coupling and synchronization to the grid occur earlier than 3 min.
after the voltage and frequency are back to normal?
Does the active power production increase more than 10%. per minute
after reset after fault?
Is manual syncronization to the grid possible?
Yes
No
Yes
No
Yes
No
Yes
No
Dok. 98992/12, Sag 10/405
Page 2 of 6
2.3 Asymmetry
Does asymmetry of over 16A occur during normal operation and/or error?
If the system consists of single-phase units, is it ensured that the above
limit is not exceeded?
Yes
No
Yes
No
2.4 Regulation of active power
Is the plant equipped with a down-regulation of the function of frequency, as shown below?
Yes
No
2.5 Regulation of reactive power
Regulation of reactive power is by:
Constant powerfactor cos φ
Variable powerfactor cos φ (P)
Changes in the active power results in modification of the reactive power?
Dok. 98992/12, Sag 10/405
Yes
No
Page 3 of 6
2.5.1 Constant powerfactor
Does the plant regulate in accordance with figure below?
Yes
No
2.5.2 Variable powerfactor
Does the plant regulate in accordance with figure below?
Yes
No
2.6 Tolerances to voltage dips and voltage spikes
Does the plant remain connected to the public grid during voltage changes, only limited by grid protection mentioned below in 2.7 “Grid protection”?
Dok. 98992/12, Sag 10/405
Yes
No
Page 4 of 6
2.7 Grid protection
Over- /under voltage
Protection
Symbol
Setting
Max time
Over voltage (step 1)
U>
1,10 x Un
40 s
U>>
1,13 x Un
0,2 s
U<
0,90 x Un
10 s
Symbol
Setting
Max time
f>
52,0 Hz
0,3 s
f<
47,5 Hz
0,3 s
Symbol
Setting
Max time
df/dt
+2,5 Hz/s
0,3 s
df/dt
-2,5 Hz/s
0,3 s
Setting
Test result
Over voltage (step 2)
Setting
Test result
Under voltage
Setting
Test result
Over-/ under frequency
Protection
Over frequency
Setting
Test result
Under frequency
Setting
Test result
LoM test
Protection
"ROCOF" df/dt
Setting
Test result
"ROCOF" df/dt
Setting
Test result
Does the plant have central LoM protection?
If Yes, are all consumers connected after LoM protection unit
Dok. 98992/12, Sag 10/405
Yes
No
Yes
No
Page 5 of 6
Comments
Test details
Date for test
Test Engineer name
Test engineer signature
Test laboratorium
Dok. 98992/12, Sag 10/405
Page 6 of 6