Stepless In-Line Magnetic Grid Stabiliser for Photovoltaic

MPV

Magtech - specialist in distribution grids with photovoltaic systems

PATENTED PROVEN TECHNOLOGY: Controlled inductors with orthogonal magnetization – extremely robust and maintenance free technology

MPV130 Substation version,

oil-cooled

MPV130 Outdoor version,

oil-cooled

MPV130 Outdoor version,

air-cooled

Technical data MPV130-400 MPV260-400

Connection TN / TT TN / TT

Frequency [Hz] 50 50

Input voltage [kV] 0,4 0,4

Output voltage [volts] 0,4 0,4

Load, nominal [kVA] 130 260

Overload, 6 hours @20°C [kVA] 208 416

Current nominal [A] 188 375

Current, 6 hours, @20°C [A] 300 600

Stepless voltage reduction [%] 0…-7 0…-7

Dynamic response [ms] 1 300 300

No-load loss [W] 2 250 350

Efficiency [%] 3 98,5 98,5

Power factor [cos j] 3 0,98-0,99 0,98-0,99

Total Harmonic Distortion [%] 3 0,5-2,8 0,5-2,8

Width x Height x Depth [mm] 1040 x 1050 x

640 1040 x 1350 x

640

Weight [kg] 750 950

Cable connection [Copper mm2] 150 150

Oil filled [liters] 200 260

Enclosure oil filled Galvanized Galvanized

Maximum cable fuse [A] 300 600

FR3 = Environmental friendly organic oil. * same as standard oil-filled transformers 1 – voltage correction to maintain correct voltage reduction 2 – zero voltage reduction or bypass (nighttimes) 3 nominal load

Magtech AS, Vålerveien 159, NO–1599 Moss, Norway, + 47 69 27 92 00 www.magtech.no, sales@magtech.no

Stepless In-Line Magnetic Grid Stabiliser for Photovoltaic - MPV Regarding the German “Energiewende”, there is a strong demand for new solutions to achieve more flexible and higher performing grids. The MPV is installed on a feeder to counter the problems of voltage rise due to power from Photo Voltaic or any other distributed generation source. The Magtech patented MCI “Magtech Controllable Inductance” technology used in the magnetic circuits modulates the voltage level as a function of the varying power flow to reduce the “downstream” voltage. Function of voltage reduction is preset in factory, and, once operating, the units need no further adjustment. The exemplary reliability and long life (40 yrs) of the sealed copper/iron system is the same as a normal transformer. The system has high efficiency in operation, and when no regulation is required, it automatically changes to by-pass mode. The rapid reaction time of the system ensures good supply quality in all power flow conditions. Accommodating the reverse power flows due to Photo-Voltaic and other distributed energy sources embedded in an electricity distribution network is an emerging problem requiring new solutions. Magtech has employed their patented variable inductance technology, proven over many years of use in hundreds of Voltage Boosting installations, in the conception of a revolutionary Magnetic In-Line Grid Stabiliser for Photovoltaic which has no parts in movement during operation, and automatically takes itself out of the circuit when not needed, so as to give maximum efficiency. The ease of installation, long life and almost zero maintenance of the MPV makes it clearly the lowest cost and most efficient solution to the problem of voltage rise due to reverse power flow. The MPV can be quickly installed anywhere along the feeder as a permanent solution to voltage rise problems due to embedded generation.

6:00 am 9:00 12:00 15:00 18:00

Voltage: without stabilizer

with stabilizer

Note! Technical data are preliminary. Magtech reserves the right to make changes without notice

Un

+10%

-10%

Voltage without MPV

Voltage with MPV

PV

MPV

PV PV RAPID CHANGES: Graph above shows a typical day-time feed-in power profile from PhotoVoltaic systems.

CONTINUOUS STEPLESS STABILIZATION: MPV with continuous stepless stabilization gives higher power capacity, reduced rapid voltage changes and better customer voltage quality ref. EN50160

05.04.2013

FUNCTION – Doubling capacity on existing grid cables – Continuous stepless fast regulation

compensating for sudden changes of photovoltaic power

– Intelligent voltage reduction (0 to -7%) – Magnetic control, robust, good power quality – Reduced rapid voltage changes with continuous

regulation – Bypass if no photovoltaic feedback, no acoustic

noise at night time, low noise during operation – Bypass if fault, never power interruption, failsafe QUALITY – No moving parts in power control module – Long lifetime - like standard transformers – Technology delivered to grid companies for 10

years – No maintenance – High short circuit capacity

– High surge sustainability and overload capacity - only copper, iron and insulation material in power circuit

– Oil-cooled version for very long lifetime and robustness

– High efficiency – High power factor – Class II (4 kV) isolating level for logic module FLEXIBLE AND EASY – Easy commissioning, no adjustments

necessary – Self-regulating, no communication needed – No extra fuses needed – Power unit maintenance-free – Indoor, outdoor and air-cooled version

available – Available in different ratings – Pluggable logic module constructed for easy

replacement after 15-20 years – Direct technical support

Daytime power profile