POWER ENQUIRY
We would be more than happy to assist you with your critical power project, containing generators, UPS systems - please fill out the form below and we will contact you to discuss your requirements further...
AVK provide power protection relays for LV and MV electrical power networks.
Our wide range of protection relays incoporate the latest state-of-the-art digital protection for feeder protection, restricted earth fault transformer or generator differential protection for diesel generators.
AVK are Europe's leading manufacturer of specialist G59/2 technology products for grid paralleling applications and have extensive experience in the field with many sites across the UK including AVK instllations.
A G59 Loss of Mains Protection Relay is required to safely disconnect generators from the grid in the event of main failure. It is mandatory for all systems producing more than 16 Amps per phase (11kW for a 3-phase system). G59 protection will:
The methods of generation is many & varied including wind turbines, solar PV, water turbines, biomass boilers etc.
AVK are the UK's leading provider of critical power systems and maintenance. Specialising in all aspects of the design, planning, implementation and on-going maintenance of critical power systems.
We offer full design & consultancy for your critical power system project - no matter the scale or how challenging. We can design any system containing UPS systems, standby genrators, switchgear & control systems around your requirements, in the present and for the future.
Our project managemnet team facilitate a smooth and pain-free installation liasing closely with you & your representatives. We provide full onsire services from offload & position to electrical and mechanical engineering to commissioning and handover to you, or your client.
UPS & Generators are sophisticated & high value pieces of equipment - our nationwide service team are available 365 days a year, anytime of the day or night to ensure your investment, & your business can continue to work without interruption when you need it most.
HighPROTEC represents AVK’s latest generation of power protection relays with dual core processors. The new device line is designed for complete protection of power generating and distribution systems.
All HighPROTEC relays are furnished with a high-contrast graphic display. Ongoing measuring values, messages, alarms, and fault data are displayed in clear text. Guiding text assists the operator when setting parameters. Inadmissible inputs are prevented by plausibility checks.
All current and earth current inputs are designed for 1A and 5A. The nominal voltage of the voltage inputs and the switching thresholds of the digital inputs can be adjusted via software. The wide-range power supply unit covers all standard auxiliary voltages, both for DC and AC.
HighPROTEC Protection and Control Applications from A to Z
Directional feeder protection | MRA4 / MCA4 |
Generator protection with differential | MCDGV4 |
Motor protection | MRM4 |
Motor protection with voltage | MRMV4 |
Overcurrent and earth fault protection; OC&EF protection | MRI4 |
Transformer differential protection | MRDT4 / MCDTV4 |
Voltage and Frequency protection | MRU4 |
AVK’s modular protection devices for low voltage, medium voltage, and lower high voltage level have numerous and complex protection functions. The protection range includes basic time overcurrent protection, machine protection to high-grade differential protection
In addition to relays with single protection functions, those with combined protection functions are available. Devices are designed for door mounting, either in separate housings or in 19“ racks. For back panel mounting an adapter is also available.
Thanks to our “plug-in” technology with automatic short-circuit mechanism for the current inputs, these relays can be changed during operation. LEDs and an alpha-numerical display show clear text indication of measuring, setting and fault values, and allow intuitive operation. Coupling to your SCADA system is achieved via the standardized interface.
AVK’s digital separate or combined relays provide all common protection functions for low and medium voltage applications, and are designed for DIN rail mounting.
Rated voltage and frequency can be set by means of DIP switches; pick-up values and tripping delays via potentiometers
The wide-range power supply for AC and DC make the relays universal. An optionally available interface adapter enables the devices to communicate with your SCADA system.
All relays from this line are self-powered time overcurrent relays, which means they take their energy from the current transformers.
Since they do not require auxilliary power, the WI Line Relays are well suited for use in self-sustaining transfer and distribution stations, local grids, and ring-main-units.
Tripping characteristics range from two-stage, independent (DEFT) and dependent (INV) time overcurrent protection, up to special characteristic curves. As further options, we offer some relays with integrated earth fault protection.
Serial products are also available, which match nearly any circuit breaker commonly available on the market. The electronic parts of the relays are completely sealed in. This makes the relays resistant to even the very worst environmental influences.
AVK’s Multifunction Line family of industrial grade protective relays offers multiple protective features in a single package.
Using a digital processor to measure true RMS values enables a high degree of measuring accuracy regardless of harmonics, transients, or disturbing pulses.
AVK supervision relays for low voltage applications are equipped with a precise micro-controller and designed for DIN-rail mounting. They are easy to operate and simplify commissioning. This is advanced technology at low price.
Rated voltage and frequency can be set by means of DIP switches; pick-up values and tripping delays via potentiometers.
The wide-range power supply for AC and DC make these relays universal