Advanced decoupling protection
for renewables offers easy set up
and safe grid connection
VMD460
delivers external network
and system protection by
continuously monitoring
phase sequence, voltage
and frequency.
to a PC or other device to set up and
commission, or change operating
threshhold parameters. All of the
required information can be displayed
and customised using the illuminated
liquid crystal multi-line graphic display
on the device itself.
T
he new VMD460 Interface
Protection System from
Bender UK makes it
easier than ever to set up
advanced decoupling protection for the
critical link between renewable power
electricity generating equipment and
the National Grid.
The new system simplifies
commissioning with a wide range
of flexible settings and related
parameters saved in pre-set basic
programs, all accessed through the on
board screen display and push button
controls.
That enables VMD460 to easily to
accommodate the limits dictated by
the DNO (District Network Authority)
or plant-specific requirements which
typically include voltage, frequency,
ROCOF (rate of change), and phase
angle etc.
The new system is compliant with the
latest UK and European standards for
the G59 Mains Protection Relay for
photovoltaic systems, CHP (combined
heat & power), wind and hydroelectric
power to provide a comprehensive
solution to the needs of renewable
energy installations.
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PECM Issue 20
VMD460 delivers external network
and system protection by continuously
monitoring phase sequence,
voltage and frequency. If there is
an infringement beyond the pre-set
limits the relay isolates the connection
between the public grid and the
power generation system - instantly
disconnecting the generator from the
grid for total protection and peace of
mind.
A key advantage
of the system is the
fact that it does not
require connection
to a PC or other
device to set up and
commission, or
change operating
threshhold parameters.
A key advantage of the system is the
fact that it does not require connection
The device
incorporates
an RS-485 interface
for data exchange and
software update via
BMS bus, and settings
can be password
protected.
Other features of the system include a
test function for the determination of
the shutdown time, memory of the last
300 events and faults with real-time
clock-calendar time stamp, continuous
monitoring of phase voltage and
line conductor voltage, and separate
switching conditions after a threshold
infringement. The device incorporates
an RS-485 interface for data exchange
and software update via BMS bus, and
settings can be password protected.
Bender UK Managing Director Steve
Mason explains: “Bender has a very
strong track record in supplying mains
protection relay systems and the
VMD460 represents a step change
in terms of functionality and ease of
use. It is, however, competitively
priced against the previous
generation products and therefore
represents outstanding value for our
customers, delivering total safety and
programming capability in a single
compact unit.”
For more information on the VMD460
and other electrical safety equipment
designed for the renewable and power
generation sectors visit us at
www.bender-uk.com