Modular, Intelligent DC-AC Inverters from Cotek17th June 2020
Modular, Intelligent DC-AC Inverters from Cotek
Relec Electronics are pleased to announce the general availability of the SR-1600-Plus Series DC-AC Inverters from Cotek. Systems consist of 1600VA inverter modules for either 24V or 48V inputs, a bespoke 2U subrack and system controller, with options for remote control and maintenance bypass switches.
The SR-1600-plus has a 89 – 91% efficiency in dc to ac mode, but also provides line conditioning of the ac input supply, making ideal for use in generator backed systems, or where the incoming primary ac supply can be variable or non-sinusoidal. The SR-1600-plus has a US-patented design with Power Factor >0.99 and the max AC efficiency 95%.
- Modular / Scalable design
- Compact & Hot swappable
- Selectable DC Mode / AC Mode with zero transfer time
- AC Line conditioning (150V ac to 265V ac)
- Advanced Communication / SNMP / RS485 Modbus
- Full input and output protection
The SR-2U2-Plus subrack can accommodate up to 4 x SR-1600-Plus modules, providing between 1600VA and 6400VA outputs, with options for redundancy and upgrades.
The overall system is scalable with up to 8 subracks or 32 modules connected in parallel capable of supplying up to 51.2kVA.
Each SR-1600 Plus inverter DC to AC Inverter provides 1600VA of output power from a 105 x 83 x 405mm plug in footprint which operates from within a 2U x 509mm subrack..
Options are available with 24V or 48V DC Inputs and either 120V or 230V AC outputs. The SR-1600-Plus is primarily designed to operate with its own bespoke 2U subrack, but support is available to use the units as stand alone inverters. Blanking panels are available to support unpopulated slots, which can then be used for future expansion. All units are 100% hot swappable in live systems for both maintenance and system upgrades.
Selectable Operating Modes
The SR-1600-Plus system can be used in multiple operating modes:
DC to AC Inverter, where the input source is a DC or Battery Supply
AC Mode, with DC Back-Up with zero transfer time
The SR-1600-Plus also has the ability to power share between the AC and DC sources.
Input Line Sharing
The SR-1600 plus is capable of sharing the splitting the load between the AC and DC input source, making it ideal for use in renewable energy applications where either the DC supply is not available 100% of the time, or to take advantage of cheaper night-time AC sources.
AC Line Conditioning
The SR-1600-plus is able to accept in a wide range of ac inputs (min +/- 20%), and provide a regulated adjustable ac output within a 2% tolerance. This feature makes the SR-1600-plus ideal for systems where generators, or poorly regulated ac supplies are unable to support modern IT equipment.
The SR-1600-plus rack is fitted as standard with an RS-485 Modbus port which allows users to control and monitor key parameters within the system, including voltage settings, operating mode, output power, internal temperatures and protection parameters amongst many others.
Subracks can also be supplied with the SN-1 Plus interface providing full ethernet support, either through a router or direct connection to a PC. All aspects of the inverter can be controlled via a web browser.
Alternatively, there is also the option for the CR-21 to be fitted which allows the SR-1600 to be programmed at a local level.
Each system also comes as standard with a set 3 analogue alarms (Major, minor and configurable) for connection to external systems as well as 2 digital inputs which can be used to provide monitoring of ancillary equipment.
Full Input & Output Protection
Each SR-1600-Plus is fully protected against reverse polarity connections and will also shutdown if the input levels are outside of the specified levels, not damaging the system. Alarms will be raised just before the system shuts down.
Both AC and DC outputs are protected against overload, short circuit and over-temperature operation.
The SR-1600 Plus inverter system is incredibly versatile, making it suitable for use in a wide variety of industries, including Telecom, Datacom, Satellite communications, Power generation, Renewable energy, Military, Transportation and Broadcast.
SR-1600-Plus from Cotek
Input: 24 or 48Vdc
Outputs: 120 or 230Vrms ac
Power: 6400 VA
Tamb: -25 to 40°C
Dims: 2U x 510mm
CE / EN60950 Approved
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Here at Relec Electronics, we have worked closely with our key suppliers for over 40 years. We specialise in many industries, including; automotive, industrial, transportation, instrumentation & defence. We have a team of dedicated engineers ready to support you throughout the design process. We also carry stock of all standard modules and accessories for next day delivery.
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