TEST REPORT AS/NZS 4777.2 AS/NZS 4777 - SMA Italia Srlfiles.sma.de/dl/21199/ZE_AS4777_SI 8.0H-11_TR_en_10.pdf · AS/NZS 4777.2 (flicker) refer to the same standards as the EMC directive;

Copyright Bureau Veritas Consumer Products Services Germany GmbH

TEST REPORT

AS/NZS 4777.2

AS/NZS 4777.3 Grid connection of energy systems via inverters –

Grid protection requirements

Report reference number .............. : 13TH0287-AS/NZS 4777_0

Date of issue .......................... ……...: 2014-01-22

Total number of pages ........... ……...: 15

Testing laboratory name ............... : Bureau Veritas

Consumer Products Services

Germany GmbH

Address ............................................. : Businesspark A96 86842 Türkheim Germany

Applicant's name ........................... : SMA Solar Technology AG

Address ............................................. : Sonnenallee 1, 34266 Niestetal

Test specification Standard ........................................... : AS/NZS 4777.2:2005

AS/NZS 4777.3:2005

Certificate ....................................... : Certificate of suitability

Test report form number. .................. : AS/NZS 4777

Master TRF ....................................... : Bureau Veritas Consumer Products Services Germany GmbH

Test item description ..................... : Battery inverter

Trademark ........................................ :

Model / Type ..................................... : SI8.0H-11, SI6.0H-11

Ratings ............................................ : SI8.0H-11 SI6.0H-11

Input DC voltage range [V] ............... : range: 41V – 63V nom. 48V

range: 41V – 63V nom. 48V

Input DC current [A] .......................... : In nom.: 136A Out nom.: 115A

In nom.: 103A Out nom.: 90A

Output AC voltage [V] ....................... : 230V / 50Hz 230V / 50Hz

Output AC current [A] ....................... : In nom.: 26,1A Out nom.: 50A

In nom.: 20A Out nom.: 50A

Output power [VA] ............................ : 6000W 4600W

http://dict.leo.org/se?lp=ende&p=/Mn4k.&search=of

Page 2 of 15 Report No.: 13TH0287-AS/NZS 4777_0


Testing Location ............................ : Bureau Veritas Consumer Products Services Germany GmbH

Address ............................................. : Businesspark A96, 86842 Türkheim, Germany

Tested by

(name and signature)........................ : Alastair Schmid

Approved by

(name and signature)........................ : Georg Loritz

Manufacturer’s name .................... : SMA Solar Technology AG

Factory address ................................ : Sonnenallee 1 34266 Niestetal Germany

Document History

Date Internal reference Modification / Change / Status Revision

2014-01-22 Alastair Schmid Initial report was written 0

Supplementary information:



Test items particulars

Equipment mobility ........................... : Permanent connection

Operating condition ........................... : Continuous

Class of equipment ........................... : Class I

Protection against ingress of water ... : IP54 according to EN 60529

Mass of equipment [kg] .................... : 63

Test case verdicts

Test case does not apply to the test object ............................... : N/A

Test item does meet the requirement ................................. : P(ass)

Test item does not meet the requirement ................................. : F(ail)

Testing

Date of receipt of test item ................ : 2013-11-19

Date(s) of performance of test .......... : 2014-01-21 until 2014-01-22

General remarks:

The test result presented in this report relate only to the object(s) tested. This report must not be reproduced in part or in full without the written approval of the issuing testing laboratory.

”(see Annex #)" refers to additional information appended to the report. "(see appended table)" refers to a table appended to the report.

Throughout this report a comma is used as the decimal separator.

The unit was reviewed to AS/NZS 4777.2:2005 Grid connection of energy systems via inverters, Part 2: Inverter requirements AS/NZS 4777.3:2005 Grid connection of energy systems via inverters, Part 3: Grid protection requirements and the unit fulfils the requirements of the European EMC directive requirements. The EMC requirements of AS/NZS 4777.2 (flicker) refer to the same standards as the EMC directive; therefore the EMC report documents show the compliance.

The grid trip tests were conducted as per clause B4, Appendix B of AS/NZS 4777.3.

This Test Report consists of the following documents:

1. Test Results

2. Annex No. 1 – EMC Test Report

3. Annex No. 2 – Pictures of the unit

4. Annex No. 3 – Test equipment list



Copy of marking plate:



General product information

The battery inverter converts DC voltage from a battery into AC voltage. 1. The ambient temperature range is specified as -25 to +60°C 2. Dimension of EUT: 467 by 612 by 242 mm.

3. The model SI6.0H-11 which are part of this report provides the same construction and differ only in the power rating which is limited by software of the model SI8.0H-11

The inverter supplies AC loads in the grid from a battery or charges the battery with the energy provided by sources on the AC side. AC sources in the grid supply loads and are used by the battery inverter to recharge the battery. In order to increase the availability of the grid and reduce the battery capacity, the Sunny Island can use and control external energy sources (e.g. a generator) as an energy reserve. The Sunny Island supplies the loads with active power and reactive power. The battery system must be a TN or TT system. The Sunny Island does not support IT systems.

Block diagram:

The product with serial number (1261008258) was tested on: Software version: 2.55 All tests were performed on EUT SI 8.0H-11. Tests of the EUT SI 8.0H-11 not applicable for the model SI 6.0H-11 were performed on the concerned model(s) and a statement is given at the relevant test.



Connection logic of the SI8.0H/SI6.0H







Default interface protection settings according AS/NZS 4777.3 - 2005:

Parameter Max. clearance time Trip setting

Over voltage 2s 230V +17% (270V)

Under voltage 2s 230V -87% (200V)

Over frequency 2s 50Hz +10% (55,0Hz)

Under frequency 2s 50Hz -10% (45,0Hz)

Reconnection time >=60s

Permanent DC-injection 0,5% of rated inverter output current

Loss of main Inverter shall detect and disconnect within 2s

The stated currents and voltages are ‘true r.m.s.’-values.

The voltages in this table are

- phase-to-neutral in 230 V single phase systems and 230/400 V systems,

- phase-to-phase in a multiphase 230 V system.

Tolerances on trip values: - Voltage: +/- 5V of the set voltage value; - Frequency: +/- 0,1Hz of the set frequency value - Clearance time: less or equal clearance limit



AS/NZS 4777.2 – 2005

Clause Requirement – Test Result - Remark Verdict

4 INVERTER REQUIREMENTS

4.1 General

The inverter shall comply with the appropriate electrical safety requirements of AS/NZS 3100.

NOTE: AS/NZS 3100 allows that if an individual Standard dealing with specific features of the design, construction and testing of any particular class or type of equipment is issued, it supersedes the general requirements of AS/NZS 3100 that are specifically dealt with in that individual Standard.

An applicable test report according to AS/NZS 3100 must be provided by the manufacturer.

P

4.2 Compatibility with electrical installation

The inverter shall have a.c voltage and frequency ratings compatible with AS 60038.

NOTE: The nominal voltage at the point of supply is 230 V a.c. single phase line-to-neutral and 400 V a.c. three phase line-to-line with a tolerance of +10% -6% and a frequency of 50 Hz.

The inverter has voltage and frequency ratings compatible with AS 60038 (230VAC, 50Hz)

P

4.3 Power flow direction

Power flow between the energy source and the grid may be in either direction.

In either direction P

4.4 (A1) Power factor

The power factor of the inverter, considered as a load from the perspective of the grid, shall be in the range from 0.8 leading to 0.95 lagging for all output from 20% to 100% of rated output. These limits shall not apply if the inverter is approved by the relevant electricity distributor to control power factor outside this range for the purpose of providing voltage support.

Compliance shall be determined by type testing in accordance with the power factor test described in Appendix A.

NOTE: Lagging power factor is defined to be when reactive power flows from the grid to the inverter; that is, when the inverter acts as an inductive load from the perspective of the grid.

See test report 4.4 P

4.5 (B1) Harmonic currents

The harmonic currents of the inverter shall not exceed the limits specified in Tables 1 and 2 and the total harmonic distortion (THD) (to the 50th harmonic) shall be less than 5%. Compliance shall be determined by type testing in accordance with the harmonic current limit test specified in Appendix B.

NOTE: The inverter should not significantly radiate or sink frequencies used for ripple control by the local electrical distributor. The distributor should be consulted to determine which frequencies are used.

See test report 4.5 P

4.6 Voltage fluctuations and flicker

The inverter shall conform to the voltage fluctuation and flicker limits as per AS/NZS 61000.3.3 for equipment rated less than or equal to 16 A per phase and AS/NZS 61000.3.5 for equipment rated greater than 16 A per phase.

See test report 4.6.

Covered by EMC Report.

P



AS/NZS 4777.2 – 2005


Compliance shall be determined by type testing in accordance with the appropriate Standard.

4.7 Impulse protection

The inverter shall withstand a standard lightning impulse of 0.5 J, 5 kV with a 1.2/50 waveform. Compliance shall be determined by type testing in accordance with the impulse voltage withstand test of IEC 60255-5.

See Test report 4.7 P

4.8 Transient voltage limits

When type tested in accordance with the transient voltage limit test described in Appendix C, the voltage-duration curve derived from measurements taken at the a.c. terminals of the inverter shall not exceed the limits.


4.9 Direct current injection

In the case of a single-phase inverter, the d.c. output current of the inverter at the a.c. terminals shall not exceed 0.5% of its rated output current or 5 mA, whichever is the greater.

In the case of a three-phase inverter, the d.c. output current of the inverter at the a.c. terminals, measured between any two phases or between any phase and neutral, shall not exceed 0.5% of its rated per-phase output current or 5 mA, whichever is the greater.

If the inverter does not incorporate a mains frequency isolating transformer, it shall be type tested to ensure the d.c. output current at the a.c. terminals of the inverter is below the above limits at all power levels.


4.10 Data logging and communication devices

Any electronic data logging or communications equipment incorporated in the inverter should comply with the appropriate requirements of AS/NZS 60950.1. Particular attention is drawn to requirements for electrical insulation and creepage and clearance distances.

An applicable test report according to IEC60950 or an equivalent report must be provided.

The provided internal devices in the inverter were tested according the AS3100 requirements “4.1.3 Creepage distances and clearance distances for applicances” and “8.4 High voltage (electrical strength)”.

P



AS/NZS 4777.3 – 2005


4 GENERAL AND SAFETY REQUIREMENTS

4.1 General

Grid protection of the inverter energy system shall be provided by a grid protection device. This does not preclude the grid protection device being integral to the inverter, nor a single grid protection device being used to protect an inverter energy system comprising multiple inverters.

Compliance with this Standard shall be determined by type testing the grid protection device on its own and, if necessary, in combination with an inverter. Compliance of this combination shall be conditional on their being used together in the same manner in which they have been type tested. Compliance of one combination of inverter and grid protection device does not preclude compliance of either device as part of a different combination.

The automatic disconnection device is integral part of the inverter.

P

4.2 Electrical Safety

The grid protection device shall comply with appropriate electrical safety requirements of AS/NZS 3100.

NOTE: AS/NZS 3100 allows that if an individual Standard dealing with specific features of the design, construction and testing of any particular class or type of equipment is issued, it shall supersede the general requirements of AS/NZS 3100 that are specifically dealt with in that individual Standard.

An applicable test report according to AS/NZS 3100 must be provided by the manufacturer.

P

4.3 Connection to Low-Voltage distribution network

The grid protection device shall be compatible with the low-voltage distribution network.

NOTE: The nominal voltage is 230 V a.c. single phase line-to-neutral and 400 V a.c. three phase line-to-line with a tolerance of +10% -6% at a frequency of 50 Hz.

The inverter has voltage and frequency in accordance with AS 60038 (230VAC, 50Hz)

P

4.4 Voltage flicker

The grid protection device shall conform to the voltage flicker limits specified in AS/NZS 61000.3.3 for equipment rated less than or equal to 16 A (a.c. current) or AS/NZS 61000.3.5 for equipment rated at greater than 16A (a.c. current). Compliance shall be determined by type testing in accordance with the appropriate Standard.

See appended table 4.6

See enclosed EMC Report

P

4.5 Impulse protection

The grid protection device shall withstand a standard lightning impulse of 0.5 J, 5 kV with a 1.2/50 waveform. Compliance shall be determined by type testing in accordance with the impulse voltage withstand test of IEC 60255-5.


4.6 Data logging and communication devices

Any electronic data logging or communications equipment incorporated in the inverter should comply with the appropriate requirements of AS/NZS 60950.1. Particular attention is drawn to

An applicable test report according to IEC60950 or an equivalent report must be provided.

P



AS/NZS 4777.3 – 2005


requirements for electrical insulation and creepage and clearance distances.

The provided internal devices were tested according the AS3100 requirements “4.1.3 Creepage distances and clearance distances for applicances” and “8.4 High voltage (electrical strength)”.

5. GRID PROTECTION REQUIREMENTS

5.1 General

The grid protection device shall operate

(a) if supply from the grid is disrupted; or

(b) when the grid goes outside preset parameters (e.g. under/over voltage, under/over frequency); or

(c) to prevent islanding.

Specific requirements are contained in Clauses 5.2 to 5.5.

The device includes an automatic disconnecting facility for renewable power generator installations (under/ over voltage/ under/ over frequency and anti islanding), see test Report

P

5.2 Disconnect device

The grid protection device shall incorporate a disconnection device which shall prevent power (both a.c. and d.c.) from the inverter energy system entering the grid when the disconnection device operates.

NOTE: The disconnection device need not disconnect sensing circuits.

The disconnection device shall incorporate an electromechanical switch if

(a) there is no galvanic isolation between the energy source(s) and the grid; or

(b) the inverter system continues to provide electrical power to any portion of the electrical installation (i.e. it operates as an uninterruptible power supply (UPS) system) in the event of the disruption of the grid supply.

NOTES: 1 Galvanic isolation can be achieved by using either a two winding high-frequency transformer or a two winding mains frequency transformer.

2 Galvanic isolation is not required on sensing circuits.

Any disconnection device intended for use with a UPS system shall only break the active conductor(s).

The disconnection device may incorporate semiconductor devices if galvanic isolation exists between the energy source(s) and the grid and the system does not operate as an uninterruptible power supply system.

The unit provides galvanic separation. The unit is switched off redundant by the high power bridge of the inverter and the relays in line and neutral.

P

5.3 Voltage and frequency limits (passive anti islanding protection)

The grid protection device shall incorporate passive anti-island protection in the form of under- and over-voltage and under- and over-

See enclosed report 5.3 P



AS/NZS 4777.3 – 2005


frequency protection. If the voltage goes outside the range Vmin to Vmax or its frequency goes outside the range fmin to fmax, the disconnection device (see Clause 5.2) shall operate within 2 s, where

(a) Vmin shall lie in the range 200-230 V for a single-phase system or 350-400 V for a three-phase system;

(b) Vmax shall lie in the range 230-270 V for a single-phase system or 400-470 V for a three-phase system;

(c) fmin shall lie in the range 45-50 Hz; and

(d) fmax shall lie in the range 50-55 Hz.

The limits Vmax, Vmin, fmax and fmin may be either preset or programmable. The values Vmax, Vmin, fmax and fmin may be negotiated with the relevant electricity distributor. The settings of the grid protection device shall not exceed the capability of the inverter.

5.4 Limits for sustained operation

The introduction of limits for sustained operation is under consideration.

NOTE: See Appendix A for further information about the proposal.

Informative P

5.5 Active anti – islanding protection

The grid protection device shall incorporate at least one method of active anti-islanding protection. Examples of such methods include shifting the frequency of the inverter away from nominal conditions in the absence of a reference frequency (frequency shift), allowing the frequency of the inverter to be inherently unstable in the absence of a reference frequency (frequency instability), periodically varying the output power of the inverter (power variation) and monitoring for sudden changes in the impedance of the grid by periodically injecting a current pulse (current injection).

NOTE: Active anti-islanding protection is required in addition to the passive anti-islanding protection described in Clause 5.3 above to prevent the situation where islanding may occur because multiple inverters provide a frequency and voltage reference for one another.

The active anti-islanding protection system shall operate the disconnection device (see Clause 5.2) within 2 s of disruption to the power supply from the grid.

See enclosed report 5.5 P

5.6 Reconnection procedure

Only after all the following conditions have been met shall the disconnection device operate to reconnect the inverter to the electricity distribution network

(a) the voltage of the electricity distribution network has been maintained within the range

The unit provides monitoring of the voltage, frequency and synchronisation. If one of these conditions is not met, then the unit is not switching on.

P



AS/NZS 4777.3 – 2005


Vmin–Vmax for at least 1 m, where Vmin and Vmax are as defined in Clause 5.3; and

(b) the frequency of the electricity distribution network has been maintained within the range fmin–fmax for at least 1 m, where fmin and fmax are as defined in Clause 5.3; and

(c) the inverter energy system and the electricity distribution network are synchronized and in-phase with each other.

5.7 Security of protection settings

The internal settings of the grid protection device shall be secured against inadvertent or unauthorized tampering. Changes to the internal settings shall require use of a tool and special instructions not provided to unauthorized personnel.

NOTE: Special interface devices and passwords are regarded as tools.

Settings – only available with password for the service personal.

P

5.8 Compliance with grid protection requirements

Compliance with the anti-islanding protection requirements shall be determined by type testing in accordance with the anti-islanding protection tests described in Appendix B.

Appendix B4 noticed P

Documents

TEST REPORT AS/NZS 4777.2 AS/NZS 4777 - SMA Italia Srlfiles.sma.de/dl/21199/ZE_AS4777_SI 8.0H-11_TR_en_10.pdf · AS/NZS 4777.2 (flicker) refer to the same standards as the EMC directive;