TECHNICAL CHARACTERISTICS HEM
Transcript of TECHNICAL CHARACTERISTICS HEM
39HEM
TECHNICAL CHARACTERISTICS HEM
REFERENCE FS3510MOUTPUT AC Output Power (kVA/kW) @50°C [1] 3510
AC Output Power (kVA/kW) @40°C [1] 3630Operating Grid Voltage (VAC) 34.5kV ±10%Operating Grid Frequency (Hz) 60HzCurrent Harmonic Distortion (THDi) < 3% per IEEE519Power Factor (cosine phi) [3] 0.5 leading … 0.5 lagging adjustable / Reactive Power injection at night
INPUT MPPt @full power (VDC) 934V-1310VMaximum DC voltage 1500VNumber of PV inputs [2] Up to 36Number of Freemaq DC/DC inputs [4] Up to 6Max. DC continuous current (A) [4] 3970Max. DC short circuit current (A) [4] 6000
EFFICIENCY & AUXILIARY SUPPLY Efficiency (Max) (η) 97.80% including MV transformerCEC (η) 97.51% including MV transformerMax. Power Consumption (KVA) 20
CABINET Dimensions [WxDxH] (ft) 21.7 x 7 x 7Dimensions [WxDxH] (m) 6.6 x 2.2 x 2.2Weight (lb) 30865Weight (kg) 14000Type of ventilation Forced air cooling
ENVIRONMENT Degree of protection NEMA 3RPermissible Ambient Temperature -35°C to +60°C / >50°C Active Power deratingRelative Humidity 4% to 100% non condensingMax. Altitude (above sea level) [5] 2000mNoise level [6] < 79 dBA
CONTROL INTERFACE Communication protocol Modbus TCPPlant Controller Communication OptionalKeyed ON/OFF switch Standard
PROTECTIONS Ground Fault Protection GFDI and Isolation monitoring device General AC Protection MV Switchgear (configurable)General DC Protection FusesOvervoltage Protection AC, DC Inverter and auxiliary supply type 2
CERTIFICATIONS Safety UL 1741, CSA 22.2 No.107.1-16Compliance NEC 2017Utility interconnect IEEE 1547.1-2005 / UL 1741 SA-Feb. 2018
[1] Values at 1.00•Vac nom and cos Ф= 1. Consult Power Electronics for derating curves.[2] Consult Power Electronics for other configurations.[3] Consult P-Q charts available: Q(kVAr)=√(S(kVA)2-P(kW)2).
[4] Consult Power Electronics for Freemaq DC/DC connection configurations.[5] Consult Power Electronics for altitudes above 1000m.[6] Readings taken 1 meter from the back of the unit.
POWER ELECTRONICS
REFERENCE FS3430MOUTPUT AC Output Power (kVA/kW) @50°C [1] 3430
AC Output Power (kVA/kW) @40°C [1] 3550Operating Grid Voltage (VAC) 34.5kV ±10%Operating Grid Frequency (Hz) 60HzCurrent Harmonic Distortion (THDi) < 3% per IEEE519Power Factor (cosine phi) [3] 0.5 leading … 0.5 lagging adjustable / Reactive Power injection at night
INPUT MPPt @full power (VDC) 913V-1310VMaximum DC voltage 1500VNumber of PV inputs [2] Up to 36 Number of Freemaq DC/DC inputs [4] Up to 6Max. DC continuous current (A) [4] 3970Max. DC short circuit current (A) [4] 6000
EFFICIENCY & AUXILIARY SUPPLY Efficiency (Max) (η) 97.76% including MV transformerCEC (η) 97.50% including MV transformerMax. Power Consumption (KVA) 20
CABINET Dimensions [WxDxH] (ft) 21.7 x 7 x 7Dimensions [WxDxH] (m) 6.6 x 2.2 x 2.2Weight (lb) 30865Weight (kg) 14000Type of ventilation Forced air cooling
ENVIRONMENT Degree of protection NEMA 3RPermissible Ambient Temperature -35°C to +60°C / >50°C Active Power deratingRelative Humidity 4% to 100% non condensingMax. Altitude (above sea level) [5] 2000mNoise level [6] < 79 dBA
CONTROL INTERFACE Communication protocol Modbus TCPPlant Controller Communication OptionalKeyed ON/OFF switch Standard
PROTECTIONS Ground Fault Protection GFDI and Isolation monitoring device General AC Protection MV Switchgear (configurable)General DC Protection FusesOvervoltage Protection AC, DC Inverter and auxiliary supply type 2
CERTIFICATIONS Safety UL 1741, CSA 22.2 No.107.1-16Compliance NEC 2017Utility interconnect IEEE 1547.1-2005 / UL 1741 SA-Feb. 2018
TECHNICAL CHARACTERISTICS HEM
[1] Values at 1.00•Vac nom and cos Ф= 1. Consult Power Electronics for derating curves.[2] Consult Power Electronics for other configurations.[3] Consult P-Q charts available: Q(kVAr)=√(S(kVA)2-P(kW)2).
[4] Consult Power Electronics for Freemaq DC/DC connection configurations.[5] Consult Power Electronics for altitudes above 1000m.[6] Readings taken 1 meter from the back of the unit.
41HEM
REFERENCE FS3350MOUTPUT AC Output Power (kVA/kW) @50°C [1] 3350
AC Output Power (kVA/kW) @40°C [1] 3465Operating Grid Voltage (VAC) 34.5kV ±10%Operating Grid Frequency (Hz) 60HzCurrent Harmonic Distortion (THDi) < 3% per IEEE519Power Factor (cosine phi) [3] 0.5 leading … 0.5 lagging adjustable / Reactive Power injection at night
INPUT MPPt @full power (VDC) 891V-1310VMaximum DC voltage 1500VNumber of PV inputs [2] Up to 36Number of Freemaq DC/DC inputs [4] Up to 6Max. DC continuous current (A) [4] 3970Max. DC short circuit current (A) [4] 6000
EFFICIENCY & AUXILIARY SUPPLY Efficiency (Max) (η) 97.75% including MV transformerCEC (η) 97.48% including MV transformerMax. Power Consumption (KVA) 20
CABINET Dimensions [WxDxH] (ft) 21.7 x 7 x 7Dimensions [WxDxH] (m) 6.6 x 2.2 x 2.2Weight (lb) 30865Weight (kg) 14000Type of ventilation Forced air cooling
ENVIRONMENT Degree of protection NEMA 3RPermissible Ambient Temperature -35°C to +60°C / >50°C Active Power deratingRelative Humidity 4% to 100% non condensingMax. Altitude (above sea level) [5] 2000mNoise level [6] < 79 dBA
CONTROL INTERFACE Communication protocol Modbus TCPPlant Controller Communication OptionalKeyed ON/OFF switch Standard
PROTECTIONS Ground Fault Protection GFDI and Isolation monitoring device General AC Protection MV Switchgear (configurable)General DC Protection FusesOvervoltage Protection AC, DC Inverter and auxiliary supply type 2
CERTIFICATIONS Safety UL 1741, CSA 22.2 No.107.1-16Compliance NEC 2017Utility interconnect IEEE 1547.1-2005 / UL 1741 SA-Feb. 2018
TECHNICAL CHARACTERISTICS HEM
[1] Values at 1.00•Vac nom and cos Ф= 1. Consult Power Electronics for derating curves.[2] Consult Power Electronics for other configurations.[3] Consult P-Q charts available: Q(kVAr)=√(S(kVA)2-P(kW)2).
[4] Consult Power Electronics for Freemaq DC/DC connection configurations.[5] Consult Power Electronics for altitudes above 1000m.[6] Readings taken 1 meter from the back of the unit.
POWER ELECTRONICS
REFERENCE FS3270MOUTPUT AC Output Power (kVA/kW) @50°C [1] 3270
AC Output Power (kVA/kW) @40°C [1] 3380Operating Grid Voltage (VAC) 34.5kV ±10%Operating Grid Frequency (Hz) 60HzCurrent Harmonic Distortion (THDi) < 3% per IEEE519Power Factor (cosine phi) [3] 0.5 leading … 0.5 lagging adjustable / Reactive Power injection at night
INPUT MPPt @full power (VDC) 870V-1310VMaximum DC voltage 1500VNumber of PV inputs [2] Up to 36Number of Freemaq DC/DC inputs [4] Up to 6Max. DC continuous current (A) [4] 3970Max. DC short circuit current (A) [4] 6000
EFFICIENCY & AUXILIARY SUPPLY Efficiency (Max) (η) 97.71% including MV transformerCEC (η) 97.47% including MV transformerMax. Power Consumption (KVA) 20
CABINET Dimensions [WxDxH] (ft) 21.7 x 7 x 7Dimensions [WxDxH] (m) 6.6 x 2.2 x 2.2Weight (lb) 30865Weight (kg) 14000Type of ventilation Forced air cooling
ENVIRONMENT Degree of protection NEMA 3RPermissible Ambient Temperature -35°C to +60°C / >50°C Active Power deratingRelative Humidity 4% to 100% non condensingMax. Altitude (above sea level) [5] 2000mNoise level [6] < 79 dBA
CONTROL INTERFACE Communication protocol Modbus TCPPlant Controller Communication OptionalKeyed ON/OFF switch Standard
PROTECTIONS Ground Fault Protection GFDI and Isolation monitoring device General AC Protection MV Switchgear (configurable)General DC Protection FusesOvervoltage Protection AC, DC Inverter and auxiliary supply type 2
CERTIFICATIONS Safety UL 1741, CSA 22.2 No.107.1-16Compliance NEC 2017Utility interconnect IEEE 1547.1-2005 / UL 1741 SA-Feb. 2018
TECHNICAL CHARACTERISTICS HEM
[1] Values at 1.00•Vac nom and cos Ф= 1. Consult Power Electronics for derating curves.[2] Consult Power Electronics for other configurations.[3] Consult P-Q charts available: Q(kVAr)=√(S(kVA)2-P(kW)2).
[4] Consult Power Electronics for Freemaq DC/DC connection configurations.[5] Consult Power Electronics for altitudes above 1000m.[6] Readings taken 1 meter from the back of the unit.
43HEM
REFERENCE FS3190MOUTPUT AC Output Power (kVA/kW) @50°C [1] 3190
AC Output Power (kVA/kW) @40°C [1] 3300Operating Grid Voltage (VAC) 34.5kV ±10%Operating Grid Frequency (Hz) 60HzCurrent Harmonic Distortion (THDi) < 3% per IEEE519Power Factor (cosine phi) [3] 0.5 leading … 0.5 lagging adjustable / Reactive Power injection at night
INPUT MPPt @full power (VDC) 849V-1310VMaximum DC voltage 1500VNumber of PV inputs [2] Up to 36Number of Freemaq DC/DC inputs [4] Up to 6Max. DC continuous current (A) [4] 3970Max. DC short circuit current (A) [4] 6000
EFFICIENCY & AUXILIARY SUPPLY Efficiency (Max) (η) 97.68% including MV transformerCEC (η) 97.47% including MV transformerMax. Power Consumption (KVA) 20
CABINET Dimensions [WxDxH] (ft) 21.7 x 7 x 7Dimensions [WxDxH] (m) 6.6 x 2.2 x 2.2Weight (lb) 30865Weight (kg) 14000Type of ventilation Forced air cooling
ENVIRONMENT Degree of protection NEMA 3RPermissible Ambient Temperature -35°C to +60°C / >50°C Active Power deratingRelative Humidity 4% to 100% non condensingMax. Altitude (above sea level) [5] 2000mNoise level [6] < 79 dBA
CONTROL INTERFACE Communication protocol Modbus TCPPlant Controller Communication OptionalKeyed ON/OFF switch Standard
PROTECTIONS Ground Fault Protection GFDI and Isolation monitoring device General AC Protection MV Switchgear (configurable)General DC Protection FusesOvervoltage Protection AC, DC Inverter and auxiliary supply type 2
CERTIFICATIONS Safety UL 1741, CSA 22.2 No.107.1-16Compliance NEC 2017Utility interconnect IEEE 1547.1-2005 / UL 1741 SA-Feb. 2018
TECHNICAL CHARACTERISTICS HEM
[1] Values at 1.00•Vac nom and cos Ф= 1. Consult Power Electronics for derating curves.[2] Consult Power Electronics for other configurations.[3] Consult P-Q charts available: Q(kVAr)=√(S(kVA)2-P(kW)2).
[4] Consult Power Electronics for Freemaq DC/DC connection configurations.[5] Consult Power Electronics for altitudes above 1000m.[6] Readings taken 1 meter from the back of the unit.
Transformer Information | HEM/PCSM | Rev 3 Page | 1
Application Note
HEM & PCSM
MV Transformer Information Rev 03
Power Electronics España S.L.
Polígono Pla de Carrases B.
CV-35 Ctra. Salida 30
46160 Lliria, Valencia, SPAIN
Sales: (+34) 96 136 65 57
Fax: (+34) 96 131 82 01
Email: [email protected]
Website: www.power-electronics.com
Power Electronics, USA
1510 N Hobson St
Gilbert, AZ 85233
Sales: +1 (602) 354-4890
Email: [email protected]
Transformer Information | HEM/PCSM | Rev 3 Page | 2
Revision Table
Version Date Author Update
1.0 Nov 02 2018 S Shah
2.0 June 14 2019 S Castagno Updated for HEM v2.0
models
3.0 Nov 9 2020 S Castagno Included PCSM
Transformer Information | HEM/PCSM | Rev 3 Page | 3
1. Purpose:
The purpose of this document is to provide technical information on the MV Transformer (MVT)
integrated into the Freesun HEM and Freemaq PCSM series inverters. The information is typical of
the transformer manufacture’s data. The scope of this document is for following models:
HEM Model Numbers: PCSM Model Numbers*: - FS3190M - FS3270M - FS3350M - FS3430M - FS3510M
- FP3190Mx - FP3270Mx - FP3350Mx - FP3430Mx - FP3510Mx (*“x” – no. of DC inputs for multi-input PCSM models)
2. Overview:
The transformer is factory assembled into the inverter as part of the complete turn-key
HEM/PCSM platform. The transformer protection is provided by an integrated MV switchgear at
the 34.5kV terminals. A single transformer design is used for all HEM/PCSM models, tapped for
each inverter LV configuration shown in section 6.
3. Transformer General Datasheet:
Transformer Information | HEM/PCSM | Rev 3 Page | 4
4. Short Circuit Information
Short circuit reactance: 8.5% (Typ.)
Short circuit resistance: 0.78% (Typ.)
X/R: 10.8 (Typ.)
Zero Sequence Impedance (R & X): >9999 pu
5. Routine Testing (sample can be provided upon request)
Standard: C57.12.01and C57.12.91
Turns ratio and phase displacement
AC voltage withstand
Induced AC Voltage
Partial Discharge
No load loss & current measurement
Winding resistances
Load loss and SC impedances
6. Transformer Taps:
6.1. Tap Configurations:
The transformer contains a total of 9 taps that will be factory configured by Power Electronics for
each inverter’s nominal LV voltage and 34.5kV at the HV terminals. The following tables show
the nominal tap steps and MVT power capacity per inverter model. The taps are set by
terminating jumpers across tap terminal per MVT nameplate.
6.2. MVT capacity in FS3190M/FP3190Mx – 600V
LV (Vac) HV (Vac) Capacity (kVA)
(50C/40C)
600V +5.0% 3190/3300
600V +2.5% 3190/3300
600V 34.5k nom 3190/3300
600V -2.5% 3190/3300
600V -4.8% 3190/3300
6.3. MVT capacity in FS3270M/FP3270Mx – 615V
LV (Vac) HV (Vac) Capacity (kVA)
(50C/40C)
615V +5.1% 3270/3380
615V +2.5% 3270/3380
615V 34.5k nom 3270/3380
615V -2.4% 3270/3380
615V -4.7% 3270/3380
Transformer Information | HEM/PCSM | Rev 3 Page | 5
6.4. MVT capacity in FS3350M/FP3350Mx – 630V
LV (Vac) HV (Vac) Capacity (kVA) (50C/40C)
630V +5.1% 3350/3465
630V +2.5% 3350/3465
630V 34.5k nom 3350/3465
630V -2.3% 3350/3465
630V -4.5% 3350/3465
6.5. MVT capacity in FS3430M/FP3430Mx – 645V
LV (Vac) HV (Vac) Capacity (kVA) (50C/40C)
645V +4.9% 3430/3550
645V +2.4% 3430/3550
645V 34.5k nom 3430/3550
645V -2.3% 3430/3550
645V -4.7% 3430/3550
6.6. MVT capacity in FS3510M/FP3510Mx – 660V
LV (Vac) HV (Vac) Capacity (kVA) (50C/40C)
660V +4.7% 3510/3630
660V +2.3% 3510/3630
660V 34.5k nom 3510/3630
660V -2.5% 3510/3630
660V -5% 3510/3630
Shaping the future. Once again.
Delivering true valueHigher power, lower LCOE
Since its founding 20 years ago, LONGi has been deeply involved in the photovoltaics industry and has continuously promoted its breakthrough innovations.
Every LONGi’s successive technological innovation had brought about an industrial transformation.
LONGi believes that the value of every innovation lies in real world applications. With scale, volume production of the product delivers true value. LONGi is committed to delivering maximum value for our global partners and customers.
Propelling thetransformation
02
LONGi roadmap industry benchmarkFrom standard monocr ystalline to monocr ystalline PERC to P-Type PERC bifacial technology and M6 (166mm) size wafer with gallium-doped technology, ever y LONGi’s new product spearheads the transformation of the photovoltaics industr y and becomes a new benchmark for the entire industr y.
Global Monocrystalline market share up to
Global market share of crystalline solar product
Mono Poly
2015 2016 2017 2018 2019 2020(estimate)
18%
82% 77%73%
44%
32%
10%
23% 27%
56%
90%
68%
90%
-
03
Leading LCOE, realizing the value of technological innovation in volume production
Monofacial application ($ cent/kWh)Bifacial application ($ cent/kWh)
1.5GW
2015
5.8
5GW
2016
5.1
6.5GW
2017
4.814.45
8.8GW
2018
4.404.07
14GWLONGi capacity
2019
3.963.67
Bifacial power generation technology
MONOSILICON
Mono technology
PERC
Mono PERC technology M6 larger size wafer
Data source: ITRPV.*LCOE calculation: 1500kWh/kWp first-year power generation for monofacial modules (bifacial gain: 8%);80% debt with 4% interest rate; 2% discount rate; 20-year straight line depreciation.
Changing the industr y status quo with monocr ystalline technology.
Brings forth the onset of the low attenuation and high efficiency
module.Opens more application scenarios.
Leads the industry into a new era of 450W+ ultra-high power.
-
-32%LCOE
LONGi insists on research-based methods to achieve industr y breakthroughs and quickly promote the commercialization of ever y innovation.
04
05
06
Product specifications 540W
Power output Module efficiency540W LR5-72HBD
● M10 wafer with gallium-doped technology
● P-PERC cell technology
● Half-cut cell with multi-busbars
● 72-cell format
● Voc: 49.5V
● Imp: 13.0A
● Power temperature coefficient: -0.35%/℃
● Weight: 32.3kg
21%+2256mm
1133mm
Lowest LCOE solutionsfor ultra-large power plants
07
Lower logistics cost
Improved system capacity ratio
Reduce equipment & material cost
Saves labor cost
Power generationOptimizes use of containers spacein transport.Logistics costs 10% lower than mainstream products.
Matched with string inverters, cost per watt on the AC side is reduced.
Hi-MO 5 enables higher power per string, significantly reducing racking, pile foundation, cable, combiner box and land cost.
Reduce installation costs for modules, cables, etc.
● High module power and excellent power generation performance
under low light. ● Low power temperature coefficient.● Reliable bifacial module power. generation gain.● Industry-leading power warranty.
Lowest LCOE solutions for ultra-large power plants
08
BOS analysis : scenario 01Location: Jiuquan, China. 100MWdc solar plant with 1500V central inverters, each standard solar subarray with a 3125kVA transformer, and a DC-to-AC ratio of 1.2 for different types of solar modules.
*Considering difference in power degradation warranty but not the difference in bifacial energy yield.
BOS
LCOE
-20.9%
-5.3%
-4.1%
BOS analysis (F ixed-t i l t racking with 4L solar modules -21℃ for design lowest temperature, 110kV uti l i ty gr id voltage)
BOS
Mounting system
Combiner box
Cable
Labor
Land
Total BOS
158.75, 72C
410W
27
11.07kW
Reference
Reference
Reference
Reference
Reference
Reference
Reference
163.75, 78C
465W
25
11.625kW
-3.1%
-6.7%
+0.5%
-8.66%
-2.8%
-1.2%
-0.6%
210, 50C
495W
26
12.87kW
-6.0%
-13.4%
-7.2%
-13.91%
-3.6%
-2.6%
-1.0%
72C
540W
27
14.58kW
-8.1%
-26.8%
-9.3%
-20.9%
-5.3%
-4.1%
-2.9%
BoS
LCOE
Labor cost
Land cost
BOS cost
Product
Power
No. of Module / String
Power / String
-2.9%
09
BOS
BoS
LCOE
163.75, 78C
465W
28
13.02W
Reference
Reference
Reference
Reference
Reference
Reference
Reference
210, 50C
495W
29
14.355kW
0.5%
9.0%
-11.2%
-5.2%
-1.1%
-1.0%
-0.5%
72C
540W
30
16.2kW
5.7%
-18.2%
-18.4%
-10.6%
-4.9%
-2.9%
-2.4%
-10.6%
-2.9%
-4.9%
BOS analysis : scenario 02Location: Qatar, Middle East. 100MWdc solar plant with 1500V central inverters, each standard solar subarray with a 6250kVA transformer, and a DC-to-AC ratio of 1.06 for different types of solar modules.
BOS
LCOE
Labor cost
Land cost
BOS cost
BOS analysis (Horizontal s ingle-axis tracker with 2P solar modules,
9.8℃ for design lowest temperature, 132kV uti l i ty gr id voltage).
Mounting system
Combiner box
Cable
Labor
Land
Total BOS
Product
Power
No. of Module / String
Power / String
-2.4%*Considering difference in power degradation warranty but not the difference in bifacial energy yield.
10
Outstanding designReliable real world applications
11
Smart soldering Improved packing density, reliability and conversion efficiency
2/3Cell gapreduction
Cell stressreduction
Gain in moduleefficiency20% 0.3%
normal gap 2.0mm gap
micro-gap 0.6mm gapCell
Integratedsegmented ribbon
Cell
Round ribbon
LONGi's smart soldering technology uses integrated segmented ribbons. The triangular section maximizes light capturing while the flat section reliably connects cells with reduced gap. Smart soldering technology reduces the tensile stress of the cell by 20%, enabling higher reliability.
12
100%
80%0 1 20 25 30 year10
Leading power warranty
-0.45%Linear annual degradation
after the 1st year
98%
84.95%
0.45% / year0.55% / year
84.8%
87.2%
1st year degradation
≤2%
Gallium-doped technology P-type module with lowest LIDLONGi products use gallium-doped PERC cells.Better LID performance with stable, long-term power generation.
Bifacial module Monofacial module
13
5400/2400 Pa
Crossbeam
Crossbeam
Installation methoddouble glass bifacial module
Front/rear side loading
Double-glass with frameThe strongest bifacial moduleHi-MO 5 adopts bifacial double-glass with frame which provides exceptional strength for higher load capacity.Qualified for 5400Pa static load on the front when there is no cross-beam on the back of the module (as shown in the figure).Avoids shading loss due to cross-beam at the back of the module.
14
The maximum input current range of.The new-generation of inverters.
15%Bifacial gain
13A
15A
Hi-MO 5 operating current(with bifacial impp gain).
Hi-MO 5 operating current .
1P Horizontal single axis tracker
2P Horizontal single axis tracker
Optimized electrical parametersFully compatible with invertersThe operating current of LONGi Hi-MO 5 module is about 13A.Including bifacial gain, the operating current remains within the maximum input current range of advanced inverters, hence there is no power generation loss.
Optimized module sizePerfectly matched with tracking systemsA Hi-MO 5 module length is about 2.25 meters.Compatible with mainstream 1P and 2P horizontal single axis tracking system.Bifacial module + tracking system can achieve the lowest LCOE in low latitude areas.
15
* Sort in alphabetical order.
Adani Group Corporate Brochure
We embrace innovationswith our global customersWe embrace innovationswith our global customersLONGi partners with global customers to build demonstration power plants around the world to jointly prove the superior value of Hi-MO 5 system solutions.
LONGi partners with global customers to build demonstration power plants around the world to jointly prove the superior value of Hi-MO 5 system solutions.
16
1.50GW12.0GW
Global capacity13.5GW
Once again, we take the lead in volume productionLONGi believes that the core value of innovation lies in real world application, and volume production of the technology delivers visible value. LONGi is committed to creating the maximum value for our global partners and customers.
(Except U.S. market)Global capacity U.S. market
2021 Q12020 Q3 for
17
Most cost-effectivemainstream product
72c
Floating power station
C&I rooftop
Large ground power station
60c
Best for rooftopDG projects
Residential rooftop
Optimal choicefor ultra-largepower plants
Ultra-large power station
66c/72c
Optimal choicefor ultra-largepower plants
Ultra-large power station
66c/72c
LONGi product portfolioHi-MO 5 extends the Hi-MO series of LONGi’s high performance module products. Concurrently available with Hi-MO 4, LONGi’s product portfolio is suited for a wide range of photovoltaic applications.
C&I rooftop
18
en.longi-solar.comLONGi Solar. All rights reserved.
NEXTracker.com | Tel: +1 510.270.2500 | 6200 Paseo Padre Pkwy | Fremont, CA 94555
Nextracker, Inc.
6200 Paseo Padre Parkway
Fremont, CA 94555
U.S.A
September 23rd, 2020
Regarding: Tracker Noise Levels
Attention: To Whom it May Concern,
The below information is in regard to NEXTracker’s Horizon Single Axis Tracker motor noise levels. Each of the Horizon tracker rows are independently powered by a 24V 1.5A brushless DV motor. The motors are essentially inaudible relative to the background noise.
The motor noise will be ~40db @ 10ft, or ~20db @ 100ft when the motor is running. The motor runs for 5-10 seconds every 1-2 minutes.
Test condition Motor speed Distance
Noise level
Test 1 No load 5.2RPM 0.3 meter 59.7dB
Test 2 No load 5.2RPM 1 meter 55.5dB
Test 3 Full load (120Nm) 4.2RPM 0.3 meter 74.5dB
Test 4 Full load (120Nm) 4.2RPM 1 meter 69.6dB
Kind Regards,
Bill Elwell
Director, Sales
m +1 415.328.7143
………………………………………………. NEXTracker.com
On-Site Acoustic Testing, LLC PO Box 145 Pawlet, VT 05761 USA 1-800-665-0080 Toll Free 1-802-233-8700 Main Office www.os-at.com
June 2019 - Sound Pressure Focus - P.E. Stephen Giguere Engineering Director Power Electronics USA Boston, MA Cell 1-508-479-1082 Office 1-602-354-4890 [email protected] www.power-electronics.com
RESULTS OF TESTING Noise Emissions Testing of Power Electronics HEM Inverter
On-Site Acoustic Testing, LLC is pleased to submit this report for services to support Power Electronics.
Scope of work
Frequency analysis (1/3rd octave band)
Total Sound Pressure
ASTM/ANSI/ ISO Specifications for testing protocols to be conducted
S1.4 – ANSI Standards for Sound Level Meters
ASTM E1124 – Standard Test Method for Field Measurement of SPL
ANSI/AHRI S – Standard 230 Sound Intensity Procedures
ANSI/ARHI Standard 575 Method of Measuring Machinery Sound Within an Equipment Space
ANSI/ASA S12.54 / ISO 3744 Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
TESTING SERVICE
Testing equipment
Bruel & Kjaer 2270 Generation 4 analyzer running BZ-7223 (Frequency Analysis) software (ANSI Type 1 precision)
Bruel & Kjaer 4231 calibration instrument
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 2
Project Deliverables
The following information is contained in this testing report:
Deliverable Description
Noise Level Measurements Noise level in dBA, dBC and 1/3 octave bands
Testing was conducted in Ft. Pierce, Florida at the Nextera Interstate PV site by Richard Alan Salz – CEO of On-Site
Acoustic Testing, LLC and Erika Ishkanian – Project Manager of On-Site Acoustic Testing, LLC
One HEM Inverter (serial number 30126792) was tested in an outdoor location.
The HEM Inverter was operation under typical (daylight) conditions.
The HEM Inverter was measured on front, back, right, left, and top measurement surfaces.
Individual measurements showing the sound pressure (with associated 1/3 octave band analysis) are shown below for
each measurement taken.
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 3
Sound Pressure Summary of all Measurements
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 4
Sound Pressure – All Measurements
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 5
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 6
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 7
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 8
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 9
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 10
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 11
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 12
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 13
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 14
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 15
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 16
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 17
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 18
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 19
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 20
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 21
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 22
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 23
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 24
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 25
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 26
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 27
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 28
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 29
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 30
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 31
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 32
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 33
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 34
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 35
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 36
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 37
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 38
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 39
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 40
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 41
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 42
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 43
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 44
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 45
Power Electronics Noise Emissions Testing HEM Inverter
On-Site Acoustic Testing, LLC 46
Summary of Results
Measurement Surface Total Sound Pressure - dBA
Front 80.5
Left 78.9
Back 80.5
Right 69.8
Top 69.9
Please feel free to contact us for any further information concerning the testing that was performed, or this report.
Best Regards,
Richard Salz – CEO
On-Site Acoustic Testing, LLC