Title: ABB CM-UFD Solar Relay & ComAp MainsPro Solar Protection Relay | MainsPro
1ABB CM-UFD.M33 ComAp MainsProSolar Protection
Relay
2ABB CM-UFD.M33
- The ABB CM-UFD.M33 is a multifunctioning grid
feeding monitoring relay. It trips the section
switch that is connected between the distributed
generation and the public grid allowing the
distributed generation to disconnect in case of
problems (e.g. unstable grid), faults, or grid
maintenance. The device provides different
monitoring services to detect 10-minutes average
overvoltage, real time over- and under-voltage as
well as over- and under-frequency. Additionally,
monitoring of vector shift and ROCOF (rate of
change of frequency) can be configured to trip
the generation in a case of loss of mains.
3ABB CM-UFD.M33 Characteristics
- Monitoring of voltage and frequency in
single-phase and three-phase mains (2-wire,
3-wire or 4-wire AC systems) - Over- and under-voltage, 10-minutes average
value as well as over- and under-frequency
monitoring - Two-level threshold settings for
over-/under-voltage and over-/under-frequency - ROCOF monitoring and vector shift detection are
configurable - Interrupted neutral detection
- Default settings in accordance with Great
Britain Engineering Recommendations G59/3 and
G83/2
4ABB CM-UFD.M33 Characteristics
- True RMS measuring principle
- All threshold values and tripping delays are
adjustable - Error memory for up to 99 entries (incl. cause
of error, measured value, relative timestamp) - Password setting protection
- 3 control inputs (e.g. for feedback signal,
remote trip) - 3 c/o (SPDT) contacts
- Multiline, backlit LCD display
5ABB CM-UFD.M33 Application
- The ABB CM-UFD.M33 is a grid feeding monitoring
relay that monitors the voltage and the frequency
of the public low or medium voltage grid.
Whenever measured values are not within the range
of adjusted threshold values, the ABB CM-UFD.M33
causes the section switch to trip (consisting of
1 or 2 switching devices according to the
applicable standard). This tripping disconnects
the power generation of systems such as
photovoltaic systems, wind turbines, and
block-type thermal power stations from the grid.
The fault is indicated by a LED and the
corresponding plain text failure message is
displayed.
6ComAp MainsPro
- The ComAp MainsPro solar protection relay is used
for grid-tie applications, and provides
anti-islanding protection as required by
Distribution Network Service Providers for solar
over 30 kW. It can be used with any embedded
generator systems such as gen sets,
co-generation, or renewable energy sources
including photovoltaic plants or wind turbines.
The ComAp MainsPro grants adjustable voltage,
frequency, and loss of mains functions to
safeguard the distribution network and the
generators. - With ComAp MainsPro, no special knowledge is
needed for the installation process and no
additional units are required. This makes it an
optimal solution for both untrained personnel and
professionals. The unit is designed to comply
completely with Utilities connection
requirements and statutory codes, offering a high
level of protection and safety when working in
parallel to the mains.
7ComAp MainsPro Product Features
- Flexible supply voltage and measurement range
- Suited for standard DIN rail installation or
door-mount - User friendly interface with easy setting (no
software tools needed) - Simple wiring with removable connectors
- Remote binary communication
- Compact design for installation in restricted
spaces
8ComAp MainsPro Product Features
- Lost of Mains function and history track
function (Last 5 events history log) - Integrated mechanical lock to secure your
settings - Breaker failure protection
- Watchdog relay output
- Increased resolution of frequency protection
settings - Resistance to frequency jumping
9Technical Information
- True RMS measurements for more accurate,
reliable evaluation of failures - Vector Shift and Rate of change of
frequency protections are available in a single
unit to allow for the best fit for each site - Symmetrical components allow for better
detection of voltage asymmetry failures - Two stage settings of voltage and frequency
safeguards cover short and long term disturbances
with fitting priority - Free assignment of five relay outputs allows for
a large range of signaling and trip methods - Four binary switches to remotely alter unit
operation
10Technical Information
- Adjustable time delay of Automatic fault
reset to avoid need for personnel on-site - Universal power supply of 8 40 VDC, 85 265
VAC, and 110 370 VDC - Unit is independent on application due to the
optional voltage range of 120/230/400 VAC with
over-range to 156/290/520 VAC - Supports three-phase and one-phase applications
- Last trip is recorded to provide evidence of
trip cause
11At BCJ Controls we produce Secondary Protection
Switchboards with solar protection relays for
Commercial Solar over 30kW grid connections. BCJ
Controls - commercial solar network protection
unit - switchboard manufacturing including
protection relay anti-islanding and zero export
devices. BCJ Controls is a solar technology
company set up by ex-utility industrial sparkies.
Between them they have a large amount of
experience in electrical grid protection, as well
as dealing with utilities on a day-to-day basis.
- Kristy (Solar Citizens) and Steve (BCJ) 'Fair
Price for Solar' Campaign
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