Solar String Combiner Boxes

Having invested huge amount of capital in their solar PV plants, the plant operators want to get the maximum output from their photovoltaic power plants.

The solar photovoltaic plant operators want to know the reason behind any / every fall in the PV plants output - whether the fall is due to some known cause [cloudy weather, planned maintenance,... etc.] or the fall is due to a fault in the plant that needs to be rectified. And, in case of fault, they want to know the exact location of the fault.

A solar PV plant typically has hundreds / thousands of PV modules spread over a large area. Using conventional means finding answers to both these questions is very difficult and/or time consuming.

The string monitoring and diagnostics system offered by GEESYS Technologies has a smart solution to above mentioned problems.

GEESYS Solar String Combiner Boxes are meant for combining all the incoming lines from the solar panel strings/arrays and deriving one common array output for the multiple array inputs.In a large solar photovoltaic (PV) array, multiple solar modules are connected in series in a string to build the voltage up to proper levels for the inverter. Multiple strings of solar modules are then combined together in parallel to multiply the string output currents to higher levels for input into the inverter.

GEESYS String Combiners (Combiner Boxes) allow the system designer great flexibility in terms of number of circuits, enclosure type and output conductors. GEESYS combiners come in NEMA-3R, 4 and 4X enclosures in either Polycarbonate, powder coated steel, stainless steel, or fibreglass. All enclosures feature complete casketed seals and all output terminals are rated for 90C. GEESYS typically stocks 2 and 32 circuit units in all three enclosures, but other circuit counts can be built to order.

In all but the smallest PV systems, modules are wired together in series strings, where the positive leads of one module are connected to the negative leads of the next module. This results in cumulative voltage output, with current (amps) staying the same. The box where the output wires from multiple series strings are joined is the combiner box. Rated for outdoor use, it contains overcurrent protection devices (OCPDs) and the necessary bus bars and terminals for combining the inputs.

Battery-based systems (off-grid and grid-tied with battery backup) have lower DC system voltages than grid-direct systems (although higher-voltage charge controllers are expected to hit the market soon). Historically, this voltage ranged from 12 to 48 V nominal to match battery voltages, but step-up/down MPPT charge controllers now allow arrays with higher voltages to charge lower-voltage battery banks, making higher array voltages more common (with open-circuit voltages usually limited to 150 V). Even with the use of step-up/down charge controllers, typically only one to six modules are placed in a series string, which means combining more strings in parallel to get the desired power output, which necessitates a combiner box.

In addition, charge controllers typically have only a single set of input wire terminals. For off-grid systems, it’s often wise to have enough room in the combiner for adding more strings of modules in the future. If the combiner and its output wires are sized accordingly, and the charge controller has been sized to handle the additional amperage, wiring more PV modules into the system can be as easy as terminating the new wires in the PV combiner box.

GEESYS provides standard pre-made solutions for Roof Top projects.These include a wide variety of Solar Array Junction boxes and AC Distribution Box. These solutions are customisable.

  • AJB 2in-1out
  • AJB 3in-1out
  • AJB 4in-1out
  • AJB 5in – 1out
  • AJB 6in – 1out
  • AJB 8in – 1out
  • AJB 10in – 1out
  • AJB 12in – 1Out
  • AJB 16in – 1out

Solar String combiner Boxes

 Model  GPRO-OD5X   GPRO-OD10X 
 Maximum Voltage in open Circuit 500V   1000V 

 Input

No of DC inputs 1-6 1-12
Maximum Input Fuse* Rating, A *  6/10/12/15/20/30
Max Input Current in short Circuit  
Max. input current in short circuit at STC  
Maximum string current per fuse holder with all string fuse* Reduction factor 0.55
Conductor Size , Sq.mm  4 — 10 Sq.mm

 

Output

No of DC Outputs 1 - 12 150 Sq.
 Maximum DC Current, A *  Upto 32A   Upto 32A 
 Conductor Size, Sq.mm   4 — 10 Sq.mm   4 — 10 Sq.mm 
Cable gland clamping range,mm 12-32

 

Protection

DC inputs overcurrent protection Protection on both polarities, gPV fuses, size 10 x 38 mm, max. rating 30 A (fuses not provided with product)
Surge Protection Device (SPD)* <=600V DC, Class C/Class B/ Class B+C

1000V DC, Class C/Class B/ Class B+C
Electric shock protection Class II equipment

 

General

Ingress Protection  IP66/65
Enclosure Type  PS*/PC,
Transparent  Top Cover
Wall mounting  Yes
Bus Bar* Yes
 Operating conditions Temp :  -20 to +55 Deg. C , RH : 0 — 95% non cond
 Type of Protections  Short-Circuit,Surge 
 International standards followed  IEC 60364
Design Life  25 years +

 

Every inverter and charge controller, whether in a utility-interactive or stand-alone system, has a DC input voltage window that must be adhered to. In batteryless grid-tied systems, inverters require relatively high DC input voltages, from 90 to 850V (typically 4 to 26 modules wired in series).

Small grid-tied PV systems (less than 5 kW @ 600V DC) often have only one or two series strings of modules. GEESYS Team will configure the SJB based on the Inverter’s technical specification and Solar PV modules technical specification. A combiner box offers a place to house series fuses and parallel the series string inputs, reducing the number of array output wires needed to run to the inverter location.

Some grid-direct inverter manufacturers include series fusing within the inverter or its attached disconnect box, which may eliminate the need for a separate combiner box. However, using a PV combiner box located close to the PV array gives you easy access to the wires for each series string. This can be handy for troubleshooting a malfunctioning PV array without having to run back and forth to the inverter area.

  • SJB 1in – 1out
  • SJB 2in – 2out
  • SJB 3in – 3out
  • SJB 4in – 4out
  • SJB 4in – 2out
  • SJB 6in – 2out
  • SJB 6in – 4out
  • SJB 6in – 6out
  • SJB 8in – 4out
  • SJB 8in – 8out
  • SJB 10in – 10out
  • SJB 12in – 12out

Solar String combiner Boxes

 Model  GPRO-GD5X   GPRO-GD10X 
 Maximum Voltage in open Circuit 500V   1000V 

 Input

No of DC inputs 1-6 1-12
Maximum Input Fuse* Rating, A *  6/10/12/15/20/30
Max Input Current in short Circuit  
Max. input current in short circuit at STC  
Maximum string current per fuse holder with all string fuse* Reduction factor 0.55
Conductor Size , Sq.mm  4 — 10 Sq.mm

 

Output

No of DC Outputs 1 - 12 150 Sq.
 Maximum DC Current, A *  Upto 32A   Upto 32A 
 Conductor Size, Sq.mm   4 — 10 Sq.mm   4 — 10 Sq.mm 
Cable gland clamping range,mm 12-32

 

Protection

DC inputs overcurrent protection Protection on both polarities, gPV fuses, size 10 x 38 mm, max. rating 30 A (fuses not provided with product)
Surge Protection Device (SPD)* <=600V DC, Class C/Class B/ Class B+C

1000V DC, Class C/Class B/ Class B+C
Electric shock protection Class II equipment

 

General

Ingress Protection  IP66/65
Enclosure Type  PS*/PC,
Transparent  Top Cover
Wall mounting  Yes
Bus Bar* Yes
 Operating conditions Temp :  -20 to +55 Deg. C , RH : 0 — 95% non cond
 Type of Protections  Short-Circuit,Surge 
 International standards followed  IEC 60364
Design Life  25 years +

In a large solar photovoltaic (PV) array, multiple solar modules are connected in series in a string to build the voltage up to proper levels for the inverter. Multiple strings of solar modules are then combined together in parallel to multiply the string output currents to higher levels for input into the inverter.

The combiner box is a device that combines the output of multiple strings of PV modules for connection to the inverter. It is typically used in the larger commercial and utility scale PV power plants (greater than 500kW). The combiner box commonly houses the input over current protection fuse assemblies for several strings (from as few as three strings to as many as 52), as well as the combined bus of those inputs into a single main output. Today’s combiner box may also house several other components for the site, such as a DC disconnect, surge protective devices and, in some cases, string monitoring hardware.

There are several key elements to pay close attention to when specifying or evaluating a string combiner box. The first element is the enclosure. Most string combiners are available in outdoor-rated enclosures, typically NEMA 3R, 4 or 4X, with NEMA 3R being the minimum requirement. More typical today is a NEMA 4 steel or NEMA 4X non-metallic enclosure. In high humidity areas, or areas with a large swing in humidity, you might consider adding a condensation or breather vent that will allow pressure equalization to the enclosure, but prevent water molecules from entering it.

The enclosure is often one of the more expensive components in the string combiner but it’s important because it has a direct impact on the life of the combiner. The enclosure’s mounting position, size and colour directly affects the internal temperatures. Lighter colours typically absorb less solar radiation than darker colours.

Mounting on a north facing wall in the shade is recommended, as direct sunlight can significantly increase internal combiner temperatures, reducing reliability and life of internal components. Size can also have an impact. Comparing two combiner designs with the same internal components, the combiner in the larger enclosure allows the larger air volume and surface area inside the enclosure to assist in better cooling of internal components. Smaller is not better for long string combiner life. Larger enclosures also make field wiring easier by allowing more room to work during installation and maintenance.

Output wire bend radius is another element to pay close attention to when specifying or evaluating a string combiner box. The NEC and UL have requirements for wire bend radius spacing inside a string combiner. There are both opposite wall and adjacent wall bend radius requirements that are determined by the size of the terminal or lug that your output wire is landing to. Larger lugs require more space. In the larger utility scale PV sites, many installers choose to use aluminium conductors for the large gauge output wires from the combiner to the inverter due to aluminium cost being much less than copper—especially when dealing with hundreds of feet of conductor. However, the aluminium conductor requires a larger gauge than the equal length copper for similar voltage drop, which requires larger terminals or lugs inside the combiner. This drives the requirement for longer bend radius, and consequently a larger combiner enclosure. Bending the large conductors in the field is time consuming and often wastes material, so using a combiner design that enables a straight shot to the output terminal without a bend can save installation time and reduce mechanical stress on components inside the string combiner.

One final item to note in the string combiner is a proper long-term maintenance plan. Monitoring and maintaining the electrical connections can help insure a high reliability and long lasting field installation.

  • CB 8in – 1out
  • CB 10in – 1out
  • CB 12in – 1Out
  • CB 16in – 1out
  • CB 20in – 1out
  • CB 24in – 1out
  • CB 26in – 1out
  • CB 30in – 1out

Solar String combiner Boxes

 Model  GPRO-D5X   GPRO-D10X 
 Maximum Voltage in open Circuit 1000V   1500V 

 Input

No of DC inputs 1-52 1-52
Maximum Input Fuse* Rating, A *  6/10/12/15/20/30
Max Input Current in short Circuit  
Max. input current in short circuit at STC  
Maximum string current per fuse holder with all string fuse* Reduction factor 0.55
Conductor Size , Sq.mm  4 — 4-10 Sq.mm

 

Output

No of DC Outputs 1 150 Sq.
 Maximum DC Current, A *  Upto 630A   Upto 630A 
 Isolator/MCB A*   4 — 100/250/315/400/500/630   4 —100/250/315/400/500/630 
 Conductor Size, Sq.mm   4 —19*3 to 30*12   4 —19*3 to 30*12 
 Conductor Size, Sq.mm   4 — 10-300 Sq.mm   4 — 10-300 Sq.mm 
Cable gland clamping range,mm 17-50

 

Protection

DC inputs overcurrent protection Protection on both polarities, gPV fuses, size 10 x 38 mm, max. rating 30 A (fuses not provided with product)
Surge Protection Device (SPD)* <<=1000V DC, Class C/Class B/ Class B+C

1500V DC, Class C/Class B/ Class B+C
Electric shock protection Class II equipment

 

General

Ingress Protection  IP66/65
Enclosure Type  PS*/PC,Transparent Top cover
Wall mounting  Yes
Bus Bar* Yes
 Operating conditions Temp :  -20 to +55 Deg. C , RH : 0 — 95% non cond
 Type of Protections  Short-Circuit,Surge 
 International standards followed  IEC 60364
Design Life  25 years +

GEESYS String Combiner is a junction box which allows several photovoltaic strings (from 8 to 32) to be connected in parallel. The total DC power is then distributed to the photovoltaic inverter. It includes photovoltaic string protection, overvoltage protection and a DC output switch disconnector. They are well adapted for Power plants as well as for photovoltaic large buildings

The Array Box also integrates a monitoring module and communicates through Modbus protocol with the monitoring devices (iRIO, XLRIO) located in the inverter substation. For each string of panels, Array Box realises DC current measurement (0 to 20A per string). The DC voltage (up to 1500Vdc) is also measured and abnormal behaviour or failures are detected.

Array Box can also propose safety opening control and remote control of the switch disconnector.

Having invested huge amount of capital in their solar PV plants, the plant operators want to get the maximum output from their photovoltaic power plants. The solar photovoltaic plant operators want to know the reason behind any / every fall in the PV plants output - whether the fall is due to some known cause [cloudy weather, planned maintenance,... etc.] or the fall is due to a fault in the plant that needs to be rectified. And, in case of fault, they want to know the exact location of the fault.

A solar PV plant typically has hundreds / thousands of PV modules spread over a large area. Using conventional means finding answers to both these questions is very difficult and/or time consuming.The string monitoring and diagnostics system offered by GEESYS is a smart solution to above mentioned problems. The string monitoring and diagnostics system provides clear and up to the minute information about the entire generating section of the solar plant. Alarms are displayed locally and on the central monitoring server showing the exact PV module string / array junction box with fault for immediate action by the plant operators.

The string monitoring and diagnostics system offered by GEESYS is affordable and simple to install.

Provides detailed information about the power generated by each string of PV modules.

Provides information about out-of-order or disturbed strings.

Upon occurrence of a fault in the power plant the system gives clear and visible reference points of the place, where the fault is registered and the nature of the fault. Such information is accompanied by a visual alarm in the concerned field array junction box and the central monitoring server.

Monitors the status of the fuses of each string

Each measuring module does a self-check up on power ON.

The system installation is easy and quick as the measuring module comes pre installed in the array junction box provided by Hanut India. Hanut India can customize the array junction box as per plant operator's requirements.

The string monitoring module needs NO additional cabling for power supply and data transmission as it takes power from the PV module strings and transmits data to the central server wirelessly. Absence of power and data transmission wires is a very BIG advantage.

User friendly software is provided for monitoring the performance of all the strings from a central location

  • CB 8in – 1out with SMU
  • CB 12in – 1Out with SMU
  • CB 16in – 1out with SMU
  • CB 24in – 1out with SMU
  • CB 32in – 1out with SMU

Solar String combiner Boxes

 Model  GPRO-D5X   GPRO-D10X 
 Maximum Voltage in open Circuit 1000V   1500V 

 Input

No of DC inputs 1-52 1-52
Maximum Input Fuse* Rating, A *  6/10/12/15/20/30
Max Input Current in short Circuit  
Max. input current in short circuit at STC  
Maximum string current per fuse holder with all string fuse* Reduction factor 0.55
Conductor Size , Sq.mm  4 — 4-10 Sq.mm

 

Output

No of DC Outputs 1 150 Sq.
 Maximum DC Current, A *  Upto 630A   Upto 630A 
 Isolator/MCB A*   4 — 100/250/315/400/500/630   4 —100/250/315/400/500/630 
 Conductor Size, Sq.mm   4 —19*3 to 30*12   4 —19*3 to 30*12 
 Conductor Size, Sq.mm   4 — 10-300 Sq.mm   4 — 10-300 Sq.mm 
Cable gland clamping range,mm 17-50

 

Protection

DC inputs overcurrent protection Protection on both polarities, gPV fuses, size 10 x 38 mm, max. rating 30 A (fuses not provided with product)
Surge Protection Device (SPD)* <<=1000V DC, Class C/Class B/ Class B+C

1500V DC, Class C/Class B/ Class B+C
Electric shock protection Class II equipment
320V AC,SPD 320V AC,40 KA,type-2,Iscpv 100A
48V DC,SPD 48V DC,40 KA,type-2,Iscpv 100A

 

String Monitoring Unit

General

Max Current per String  8-52 Channel, 50A, Hall Effect Based CT
Voltage Measurement  1 Channel (1000V DC Maximum) , Accuracy: 1.5FSD
Internal Temperature Measurement   0 - 100°C, Accuracy ± 2°C for full scales
Data communication (Isolated) RS 485 Modbus RTU Protocol, 2.5KV Isolation, Half Duplex
 I/O's;  DI:2, DO:1; AI:2; Temp Input: 1 RTD PT100 3 Wire
 Auxiliary Power Supply   230V AC, 50Hz, 1-Ph/±15V DC, lA 
Ingress Protection  IP66/65
Enclosure Type  PS*/PC,Transparent Top cover
Wall mounting  Yes
Bus Bar* Yes
 Operating conditions Temp :  -20 to +55 Deg. C , RH : 0 — 95% non cond
 Type of Protections  Short-Circuit,Surge 
 International standards followed  IEC 60364
Design Life  25 years +

The ACDB box is made of epoxy powder coated metal casting. Three feeders are provided in ACDB with MCB of Required capacity installed at each feeder in the ACDB.

One Electronic Energy Meter, ISI make, is provided in ACDB to measure the consumption of power from SPV Power Plant.

A separate dedicated feeder from conventional line to PCU as well as ACDB is also provided.

A separate change over switch of required capacity is provided in the ACDB to isolate the existing connected load from the solar system & switch it over to the existing convention power (Mains), in case of emergency.Solar ACDistribution Boxes are installed immediately after the solar PV Grid-tie inverter.

The main purpose of the ACDB is to eliminate the operation of the load at the immediate PCU O/P end and also provide flexible operation of different loads like Street lights, general home or office lights and optional loads that optionally operated (On/Off).

GEESYS PV AC/DC distribution box consists of DC distribution unit and AC distribution unit. The DC distribution unit is mainly used to collect the DC from the PV panels and supply it to the inverter. The AC distribution unit is used to provide the AC converted by the inverter for the grid connection interface. GEESYS DBW1.5~20K AC/DC Distribution Box is mainly used in small and medium PV systems and it may provide a complete PV system solution for the customers together with our small and medium power inverters.

GEESYS offer several purpose built ACDBs like ACDB for tied inverter, ACDB for off grid inverter.

Features & options available in solar ACDB include Terminals, MCB/MCCB, Contactor, class 1, class 0.5S solar NET energy meter, multi function meter, earth fault protection unit, IP protection rating from IP21 to IP65 levels, AC SPD class B, SPD class B+C, ON change over switch, Relays, Fuses, Disconnectors and etc.

  • 1P, AC Distribution box ( 1in 1out)
  • 3P, AC Distribution box ( 1in 1out)
  • 1P, AC Distribution box ( 1in 1out) with automatic Grid Cut-off
  • 3P, AC Distribution box ( 1in 1out) with automatic Grid Cut-off
  • 1P, AC Distribution box ( 1in 1out) with Energy Meter
  • 3P, AC Distribution box ( 1in 1out) with MFM
  • 3P, AC Distribution box ( 1in 1out) with automatic Grid Cut-off and MFM
  • 3P, AC Distribution box ( 1in 1out) with MFM and Reverse Power Protection
  • 3P, AC Distribution box ( 1in 1out) with MFM and Timer

AC combiners box normally called as ACCB is our new solutions for high capacity plant which are using string inverters. Normally in SPV plants we combines DC and use Array Junction Box/DC Combiner box to combine all PV panels but now a days string inverters which converts directly DC to AC in field area for a particular capacity and like this we use multiple string inverters to take the AC output, now these String Inverters are needed to be combined at filed area only and take a high capacity AC cable to our output panel for this ACCB is used which combines all string inverters and the output is fed to AC panel at control room this saves a consistent amount of cost and cables. we offer this product for all need varying from KW to MW range.

It is basically a bigger version of ACDB. ACCB is used in place of ACDB in large solar PV power plants where there are several inverters. ACCBs have one MCCB for each inverter and one master MCCB at the outgoing side.

Almost all features and options that are available with ACDB are also available in ACCBs. ACCBs are normally used in grid tied / grid connected solar power plants.

GEESYS has supplied small ACCB with master MCCB of 100A to large ACCB with master ACB of 2500A rating.

We use high quality solar NET [bi-directional] energy meters of Genus, Secure Meters & Schneider makes and 0.5 class CTs of Powermat / AE / Equivalent makes. Several states in India like Rajasthan, AP, TN, Maharashtra,... have allowed net metering and have formulated policies for net metering for grid tied solar PV installations. Net metering will promote commercial roof top solar pv installations in India. It makes roof top solar pv installations financially very attractive.

GEESYS offer several purpose built ACDBs like ACDB for tied inverter, ACDB for off grid inverter.

Features & options available in solar ACDB include Terminals, MCB/MCCB, ACB, Contactor, class 1, class 0.5S solar NET energy meter, multi function meter, earth fault protection unit, IP protection rating from IP21 to IP65 levels, AC SPD class B, SPD class B+C, ON change over switch, Relays, Fuses, Disconnectors and etc

  • ACCB 2in – 1out
  • ACCB 3in – 1out
  • ACCB 4in – 1out
  • ACCB 5in – 1out
  • ACCB 6in – 1out

Our manufactured Metering Panel Boards are widely used for domestic as well as industrial purposes. Our Electrical Metering Panel Boards are designed with careful wiring and are excellent in appearance. These Metering Panel Boards are made of 2.5 mm cold rolled, mild steel metal clad, free standing, totally enclosed, cubicle type, fully compartmentalized, outdoor installations and suitable for operation on 11kV, 3ph, 50Hz., and AC earthed system.

The panel contains the equipments and components complete with bus bar interconnections, control wiring, designation labels, caution notices, EB sealing and pad locking facilities wherever required. Necessary space is provided for entry of H. T. cables from the bottom through detachable gland plates.

we can custom build an A.C. Metering Panel or Control Panel to suit our customers’ requirements. These particular types of panels are usually ordered by companies in the solar and generator set business

Features and Benefits

  • Factory assembled/wired internal meters minimize installation labour
  • Factory installed/wired CTs eliminate lengthy wiring runs and wiring errors
  • Small footprint takes up less wall space than separate panels and meters
  • UL Listed
  • Power line communication standard on all meters
  • Optional Modbus RS-485 communication
  • IEC optical front panel interface for programming
  • Real-time, per phase viewing of voltage, current, power factor, phase angle, watts, VARs, VA and frequency
  • Event reporting with time and date stamps
  • Data can be accessed and collected through third party read-bill-collect service

Some commercial Solar PV installations are for self-consumption only and grid export is not permitted. While this may be fine on a working day, for a week-end or a holiday the PV generation may exceed the demand. The Grid Protection Relay mandated by the Network Provider would trip the Solar Generator under such a situation. This causes inconvenience and would result in loss of production. OZTRON Reverse Power Controller (RPC) actively modulates the solar inverters even under rapidly fluctuating loads and varying solar output to ensure that the solar power is always maintained just below the consumption level and tripping is avoided.

The Reverse power protection panel is located close to the Solar AC distribution board. It can operate in stand-alone mode or interface with the Grid Protection Relay for added features and simpler installation.

The grid voltage provides the power supply for the relay energising circuit and phase reference for the phase sensitive detector. Current reference to the detector is taken from generator load current

The output from the detector is compared with a reference which is set by the trip set point potentiometer. When the set point value is exceeded an electronic trip operator to energise the relay circuit though an adjustable time delay.

Features

  • Smooth control
  • Compatible with popular models of inverters
  • No moving parts or relays u Minimum wiring
  • Quick response, in milliseconds, not minutes
  • Accurate control u No start-stop operation for inverters resulting in loss of production
  • No restriction on sizes of inverters
  • Self-resetting
  • Adjustable set point
  • Adjustable time delay
  • LED trip indication
  • 2 pole relay contacts
  • Internal Differential (factory settable only)
  • With the proliferation of solar PV systems, the Electrical Supply Utilities are becoming increasingly concerned about voltage rise caused by solar systems exporting power to the grid when the customer’s load is not high enough to use all of the power generated by the solar system. This may be on weekends or public holidays.
  • The systems can be turned off during these times, however you will lose the efficiency and don’t then cover basic loads that may be much less than the maximum capacity of the solar system.
  • When solar systems generate more power than the load required at any particular time, the excess load is pushed back to the mains network and can cause voltage rise. Many of the transformers and mains network assets were not designed to manage this reverse power flow.
  • Approvals for solar system installs can be dependant on
    1) if excess power will be available &
    2) if the local grid can accept it.
  • Sometimes approvals for even small (5KW) systems are not available.
  • HLP Controls have a system (PE-200) to prevent the export of power during excess power production while still utilizing the solar power to maintain efficiency.
  • The PE-200 System monitors power flow direction and then can control the inverters to reduce power generated to match the power used on the premises.
  • This
    - maximises the use of solar power
    - maximises return on investment, &
    - keeps the power utility companies happy by not exporting excess power to the grid.
  • The PE-200 is easily installed and set-up. The export power limit is easily changed for situations where an export limit is set.
  • For instance, say on a 30KW solar system you are allowed 5KW of export.
  • In this situation the 5KW export is set as the export limit and all control will be set around this figure.
  • There are two types of inverters that can work with the PE-200.
    1 - Inverters such as the Trio PMU & SMA cluster controllers use an analog control signal.
    2 - The PE-200 can control the system to within 1% of total power.
    Note: 1 x PE-200 can control up to 50 inverters.
  • This system is pre setup and tested, you just need to install.
  • The end result is the same - more solar systems can be installed and each one is used more efficiently.
  • Parts Required:
    • Each system will require:
    1) An inverter with an analog interface Like the ABB- Trio or power one (ABB-PMU is included) 2) CT’s installed on site to measure the grid current;3 Standard CT's are included (200:5 Solid core) 3) A PE-200-1 4) A PE-200 spec sheet with all items filled in; 5) A qualified electrician to install the PE-200.
  • For systems when the Electricity Authorities require a generator protection relay, we match the PE-200 Zero Export Controller with an IEC Approved Protection Relay such as the Fanox SIL-G. This ensures compliance with the Utilities protection requirements and are typical on larger systems over 30KW (dependant on the Utility and the approval conditions).
  • Full system drawings are available for all configurations.
  • The PE-200-SILG is in a metal outdoor enclosure 600 x 600 x 180mm.
    The unit has an inner door with all of the controls mounted inside.
    This includes an IEC Approved generator protection relay which meets Australian standards. The protection relay includes reverse power, ROCOF, over-voltage, under-voltage, frequency, power and voltage measurement, etc.
  • A 140 Amp contactor is mounted in the system, which is controlled by the protection relay to disconnect the solar power should any parameters be exceeded (contactors up to 400 amps are available). This is typical of larger (ie: greater than 100KW) solar power requirements. The generator protection relay is often required by the Utilities as a ‘fail-safe’.

This unit is supplied wired, tested and programmed to your specifications, READY TO INSTALL! All hardware included.