Harmonic current emissions as EN Harmonic Test Value in Amps % of fund Limit value in Amps

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2 POWER QUALITY Harmonic current emissions as EN Harmonic Test Value in Amps % of fund Limit value in Amps

3 Voltage Fluctuations and Flicker as per EN Value Pst Plt d(t) 500ms d c d max Limit % 3.3% 4.0% Test value % 0.0% -0.49% DC injection Test level 20% 50% 75% 100% value 38.9mA 39.8mA 32.7mA 39.2mA as % of rated AC current 0.45% 0.46% 0.38% 0.45% Limit 0.5% 0.5% 0.5% 0.5% UNDER / OVER VOLTAGE PROTECTION Function Limit Actual setting Trip test Voltage [V] Time [s] Voltage [V] Time [s] Voltage [V] Time [s] U/V Stage O/V Stage UNDER / OVER FREQUENCY PROTECTION Function Limit Actual setting Trip test Frequency[Hz] Time[s] Frequency[Hz] Time[s] Frequency[Hz] Time[s] U/F Stage O/F Stage DC CURRENT MONITORING A direct current feed to the low voltage grid due to a defective generator operation must lead to a disconnection within 0.2 s. (according to VDE ) Function Limit Trip test DC current [A] Time [ms] DC current [A] Time [ms] Positive DC current Negative DC current LOSS OF MAINS TEST No. P EUT 1) Reactive load 2) 3) P AC Q AC Disconnection (% of EUT rating) (% of Q L in 6.1.d)1) (% of nominal) (% of nominal) time [s] Remarks 4) Test A at BL Test B at BL Test C at BL

4 Test A at IB Test A at IB Test A at IB Test A at IB Test A at IB Test A at IB Test A at IB Test A at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test B at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB Test C at IB 1) P EUT : EUT output power 2) P AC : Real power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 3) Q AC : Reactive power flow at S1 in Figure 1. Positive means power from EUT to utility. Nominal is the 0 % test condition value. 4) BL: Balance condition, IB: Imbalance condition. Note: Test on active LoM detection methods according to EN RECONNECTION TIME MEASUREMENT Reconnection time Under/over Voltage Under / over Frequency Loss of Mains Minimum value 60s 60s 60s Actual setting 60s 60s 60s Recorded value 68s 68s 68s

5 OPERATING RANGE Test sequence Voltage [V] Frequency[Hz] Output power[w] Primary power source[w] Test Test Note: Operation at reduced power is allowed during test 1, equal to the maximum power that can be supplied on reaching the maximum output current limit. During the sequence of test 2, automatic adjustment to reduce power in the case of over frequency shall be disabled. ACTIVE POWER AT UNDER-FREQUENCY Test sequence Output power [W] Frequency [Hz] Primary power source [W] Test a) Test b) Test C) Note: the power reduction in point c) is less or equal to 20%Pn according to EN50438:2013. POWER RESPONSE TO OVER-FREQUENCY Test sequence at power level >80% Output Power [W] Frequency [Hz] Primary Power source[w] Power gradient Step a) Step b) Step c) %P M /Hz Step d) Step e) Test sequence at power level 40% - 60% Output Power Frequency Primary Power source[w] Power gradient Step a) Step b) Step c) %P M /Hz Step d) Step e) % Pn /min* * This power gradient is active power rise once the frequency drops below the threshold frequency f1. REACTIVE POWER RANGE Set point P [P/Pn] P(W) + Q (Var) PF P(W) - Q (Var) PF 10% % %

6 40% % % % % %* %* Plot of P over Q of all measured points %Pn 20%Pn 30%Pn 40%Pn 50%Pn 60%Pn 70%Pn 80%Pn 90%Pn 100%Pn Over excited [Var] Under exicited [Var] Note: The letter - is short for inductive and indicates inductive power factor. In case of capacitive power factor the letter + is used instead. * The maximum apparent power of the inverter is limited to 2.2KVA. If setting cosφ 1, the maximum active power is reduced accordingly. The active power 90% and 100% P/Pn is therefore only achieve when the cosφ 0.9 and cosφ=1 respectively.