A LITTLE ABOUT US

AVK Protection & controls are the UK's leaders in power protection
UK specialists in the renewable & CHP/Cogeneration energy sector with expertise in G59/2 protection relays, controls, testing, commissioning, components & more

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:

  • Prevent your generator from feeding into faults in the distribution network;
  • Disconnect your generator from the network if the mains fails;
  • Prevent your generator from keeping parts of the distribution network energised in a network fault.

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.

SOME OF OUR CLIENTS

We work with many of the UK's leading companies delivering total critical power solutions.
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SERVICESWE OFFER

AVK provide expertise in the design, planning and implementation of power systems projects in all major market sectors. We are experts in state-of-the-art solutions for today's demands for reliabiity and efficiency.
DESIGN

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.

  • Survey & Consultancy
  • Drawings& Technical Submissions
  • Strategy
  • Turnkey Solutions
  • In-House CAD Design 2D & 3D
  • PI Insurance
INSTALLATION

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.

  • Full Project Management
  • Mechanical, Electrical & Civil engineering
  • Flue, Silencer & Coopling Installation
  • Fuel Delivery Systems
  • On-site Test & Commissioning
  • Project Handover
MAINTENANCE

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.

  • Diesel Generator Service (All Manufacturers)
  • UPS Servicing
  • Maintenance Contracts
  • 24/7 Emergency Callout
  • Control System Upgrades
  • Hire UPS, Generators & Loadbanks

THE WORLD HAS, AND CONTINUES TO CHANGE:
THE WAY IN WHICH WE WORK AND LIVE NOW MEANS WE REQUIRE ‘ALWAYS ON’ POWER. CONTINUOUS POWER IS ESSENTIAL TO MOST OPERATIONS, WHETHER IT BE A FACTORY, FINANCIAL INSTITUION, DATA CENTRE OR HOSPITAL - REVENUE AND LIVES ARE AT RISK.

OURRELAYS

As the UK's leading provider of critical power, our comprehensive product range covers all your power protection & needs and more. Please see below for information on our Diesel generator, UPS ranges and our Power protection services.

AVK RELAYHIGHPROTEC

HighPROTEC stands for the most sophisticated relays with the highest adaptability to specific grid requirements.
Class leading diesel generator solutions for mission-critical services - Data Centres, Hospitals & Telecommunications

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

WANT TO FIND OUT MORE?

GENERATOR DOWNLOADS:

5-44KVA
AVK MITSUBISHI DIESEL GENERATORS
20-44KVA
AVK JOHN DEERE DIESEL GENERATORS
200-700KVA
AVK VOLVO DIESEL GENERATORS
1275-2200KVA
AVK MITSUBISHI DIESEL GENERATORS
715-3300KVA
AVK MTU DIESEL GENERATORS

AVK RELAYHIGHTECH LINE

High Tech Line Modular Protection Devices.
These modular relays combine well-proven technology with easy handling.

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.



WANT TO FIND OUT MORE?

UPS DOWNLOADS:

10-20KVA
AVK INFINITY (SINGLE PHASE)
10-40KVA
AVK INFINITY (THREE PHASE)
60-160KVA
AVK THETYS UPS
200-300KVA
AVK HYPERION UPS
400-800KVA
AVK TITAN UPS

AVK RELAYPROFESSIONAL LINE

Professional Line Relays.
These modular relays combine well-proven technology with easy handling.

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.



WANT TO FIND OUT MORE?

SERVICE DOWNLOADS:

DIESEL GENERATOR MAINTENANCE
UPS MAINTENANCE
BATTERY MAINTENANCE CONTRACTS
AVK REMOTE MONITORING SYSTEM (POWERSCAN)

AVK RELAYWI LINE

WI Line Relays.

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.

WANT TO FIND OUT MORE?

HIRE DOWNLOADS:

CONTAINERISED UPS HIRE
HIRE GENERATORS UP TO 2MVA
HIRE GENERATORS UP TO 500KVA
HIRE UPS 15-500 KVA
HIRE UPS 500KVA
LOAD BANK HIRE

AVK RELAYMULTIFUNCTION LINE

Multifunction Line Protective Relays.

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.

WANT TO FIND OUT MORE?

Click below to find out more about what we supply as the UK's exclusive approved distributor of Woodward protection devices

AVK RELAYSBASIC LINE

Basic Line Supervision Relays.
AVK can help you to maintain ultimate control of your power protection.

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

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