Protect, Preserve and Enhance

Transcription

1 Protect, Preserve and Enhance SF6 & Oil testing instruments for the Electricity Supply Industry

2 2 assero: (latin) protect or preserve. protect preserve enhance

3 3 Introduction Energy Maintenance Technologies Limited (EMT) supply a range of Instrumentation, consumables and related services to the Electricity Supply Industry (ESI) to maintenance and support personnel, whose role is to protect, preserve and enhance the life of people, plant and equipment assets within their responsibility. The people at EMT Limited are driven to source the very best technologies coupled with the best service and support to meet our client needs. With over 35 years experience of supplying asset management solutions to the electricity market, we feel that we are very well qualified to provide help and assistance with all of your asset protection needs. Present and future plant requires high quality and purity insulating oils and Sulphur Hexafluoride (SF6) gas at the point of use. With increasing voltage and temperature stresses of modern plant as well as more demanding environmental regulations, it is imperative that insulating medium inside your plant is properly maintained and serviced at regular intervals. At EMT, we can help you get the most from your valuable asset by discussing your issues and providing appropriate cost effective solutions to meet your needs. Whether your requirement is portable or engineered, we have a wealth of experience and knowledge gained through partnerships with industry professionals. We are confident that we can help you achieve your asset management objectives. Our assero range of Oil and SF6 testing products are world leading technologies, developed with industry professionals from around the globe with many years of experience in this field so that our clients can make a more informed choice. Our team of experienced professionals have spent many years developing answers to the problems faced within this industry and we are confident that we will have a solution that suits your needs. Our supplier partners are world leaders in their respective fields and we are proud to promote our products to you, our valued customers. Neil Kane Managing Director

4 4 assero SF6 testing & maintenance by emt SF6MPU - Multi SF6 Analyser - the world s first 5 GAS SF6 Analyser Sulphur Hexafluoride (SF6) gas has been utilised in High Voltage Gas Insulated Switchgear (GIS) and Circuit Breaker applications for over 50 years. Over the years, earlier installations have started to show signs of the SF6 breaking down and decomposing due to high temperature arcing and leakage. These arc breakdown or decomposition products are difficult to measure and have various Health and Safety problems associated with their ongoing use. These issues coupled with the fact that SF6 is a major greenhouse gas, more than 23,900 times more damaging to the Ozone layer than C02 means that measuring, monitoring and capturing SF6 is a very important step in the on going protection and maintenance programmes for sub-station personnel going forward. These decomposition byproducts include lower fluorides of sulphur, which are hydrolyzable, yielding HF (Hydrofluoric Acid) and SO2 (Sulphur Dioxide). Moisture and oxygen will react with SF6 decomposition products in the presence of an electrical discharge to form a variety of compounds which are extremely toxic and very difficult to measure. It is very important to measure the SF6 decomposition products and there are various IEC/CIGRE and ASTM methods which provide a guide to their use, handling and measurement. Quality SF6 analysis and maintenance is very helpful at all stages of equipment life time, i.e. before equipment service, during equipment service (periodically or occasionally), and at the end of the equipment life. Quality SF6 analysis serves three main purposes: to ensure that the initial conditions for the intended equipment service at the time of commissioning (or at any other moment of manipulation with the SF6 filling) are correct to diagnose deteriorated conditions of any SF6 filled equipment during its service to ensure proper environmental-friendly handling and consequent disposal with used SF6 gas. All three purposes are very important and crucial to protection of SF6 plant and personnel. The key question is how do you select the right moment for internal intervention, i.e. how to prevent a violent failure and simultaneously how to avoid unnecessary internal inspections. This aspect is becoming more and more important as utilities are forced to avoid unplanned as well as planned outages and to cut preventive as well as corrective maintenance expenditures. Condition based predictive maintenance activities thus provide optimum solutions and many utilities are changing their maintenance strategies towards this principle (CBM), and EMT are leaders in this field.

5 5 SF6 is a major greenhouse gas. Measuring, monitoring & capturing SF6 is an important step in ongoing substation maintenance programmes protect preserve enhance

6 6 emt assero SF6MPU SF6 Analyser EMT is proud to announce the release of the highest performing SF6 analyser in the world. The SF6MPU is the only SF6 analyser able to measure up to 5 contamination parameters within 1 analyser, saving time and SF6 gas wastage. Select method Analyse screen Method End Screen Features of the new EMT assero SF6MPU Multi SF6 Gas analyser The world s 1st 5 Gas SF6 Breakdown Analyser Simple and easy connect and go technology. Unique easy to use software pre=programmed with all relative global industry methods (CIGRE/IEC) built in Unique traffic light pass/fail indication on screen, fully data-logged. High Performance intuitive full colour 5 touch screen display. Compact, Robust and Lightweight Constructioncapable of withstanding stressful environments Low maintenance- reliable and easy to fault findprogrammed with help/diagnostic test screens. Minimum SF6 gas usage- The unit needs to use no more than 2000cc/2 litres of SF6 per test. GSM/GPRS Option for highly intelligent results information and feedback to central communications centre or utility headquarters. Comprehensive universal quick connect fittings kit applicable to most industry circuit breakers and switchgear plant. Fast test results, typically <10 minutes Built in USB Software full datalogging connection /download Modular upgrades gas upgrade available AC or battery power (5 hours minimum) Multi language - English/Chinese/Spanish/French /German. 3 Gas Unit- HF/SF6 Purity/O2, Dewpoint and SO2 (3 from 5) 4 Gas Unit-HF/SF6 Purity/O2/ Dewpoint and SO2 (4 from 5) 5 Gas Unit-HF/SF6 Purity/O2/Dewpoint and SO2

7 7 SF6MPU Technical Specifications PART NO. SF6MPU Temperature range Operating -20 C to +40 C. Sample details Input: 100 mbar to 10 bar. Output: atmosphere +/- 100mbar This unit is supplied with a sample system suitable for connection to a pressurized sample of up to 12 bar. Sample flow rate ml/min (programmable) Sensor & Gases / Ranges: Sulphur Hexafluoride (SF6) (Purity) SF6 0 to 100% w/w 0 to 100% v/v SF6 (Air background) Accuracy: ±-1% F.S. Moisture (dew-point) Aluminium Oxide Ultra High Capacitance -60 C to +40 C Accuracy: ± 2ºC DP over full range Hydrogen Fluoride (HF) 0-500ppm (Factory set at 0-100ppm) Accuracy: ± 0.1ppm w/w Sulphur Dioxide (SO2) 0-200ppm Accuracy: ±5ppm v/v Oxygen (O2)/Air 0-5% O2 Galvanic Oxygen cell 0-10% ppm v/v Comfortable rubber over-moulded top and side handles Stainless steel hardware and padlock protectors Retractable extension handle Strong polyurethane wheels with stainless steel bearings emt fittings kit PART NO. SF6KIT The EMT fittings kit is a complete kit of fittings required for connection of your SF6 Gas analyser to the majority of commercially available SF6 Switchgear and Circuit Breakers. The kit comes in a robust and hardwearing portable case. Electrical specification Power Supply Battery operation 5 hrs hours continuous operation AC Supply: Va.c. 50/60 Hz 10W. Weight 21 Kg or 46 lbs Case Dimensions Interior dimensions: 51.7 x 39.2 x 22.9 cm (20.37 x x 9.00 ) Watertight, crushproof, and dust proof Easy-open, double-step latches Automatic Pressure Equalization Valve Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

8 8 emt assero SF6GCU SF6 Gas Collection Unit Utility companies need to reduce SF6 gas emissions by law due to the F gas EC regulation 842 Using an SF6 Gas Analyser, field-based engineers can now measure the key parameters associated with condition-based monitoring of SF6 gas-filled equipment in one easy to use instrument. Welcome to the future of SF6, sulphur hexafluoride, gas consolidation for any SF6 gas analyser! Utility companies need to reduce SF6 gas emissions by law due to the recently introduced F Gas EC regulation 842. The convenience of SF6 measurements within multi parameter instruments ensure minimal SF6 gas usage and faster analysis times, during sampling and testing. For a typical analysis, you need between 2-4 litre of SF6 gas depending on the analyser, most analysers will exhaust this amount of gas into the atmosphere unless collected. The SF6GCU is attached to the SF6 Analyser and controls the flow rate through the SF6 Analyser, it collects the SF6 sample gas and sends it into a gas cylinder if the gas is contaminated or you can pump the SF6 gas back into the switchgear not releasing any of this highly global warming gas into the atmosphere. The assero SF6GCU is an innovation from EMT. This device consolidates SF6 sample gas from any SF6 analyser. The assero SF6GCU instrument offers a variety of features for ease of operation. Collect sample gas. Controlled mass flow rate, 100% repeatable. Improves quality of measurement from any SF6 Analyser Internal tank, 10L. No back pressure in analyzer. Battery operated. Easy to operate, touch screen operation.

9 9 SF6GCU Technical Specifications PART NO. SF6GCU Battery Battery operating time: > 3h (norm) Case Case, SF6GCU is built in a 1440 Pelicase. IP rating: 65 Gas cylinder: outside the SF6GCU. Operations Purging capability hose. Control by Touchscreen Human Machine Interface (HMI). Leak test storage tank (0-10L). Flow rate 0-1 NLPM *Please inform EMT of the fittings required for connection of the SF6GCU to your SF6 analyser as these can be different from manufacturer to manufacturer. emt fittings kit PART NO. SF6KIT Safety Emergency button. Certifications Leak test certificate (He Leak test 10-4 SCCS) Calibration certificate Pressure sensors + MFC Pressure test certificate (10 Bar) Specifications pump Outlet pressure more than 10 Barg. Accuracy MFC 1% of FS Pressure sensors 0.5 % FS Max inlet pressure: 8 Bar Min inlet pressure : 3 Bar The EMT fittings kit is a complete kit of fittings required for connection of your SF6 Gas analyser to the majority of commercially available SF6 Switchgear and Circuit Breakers. The kit comes in a robust and hardwearing portable case. Weight Weight unit: 14Kg Couplings/Tubing Rectus or Dilo self-sealing quick connectors on unit. Gas Tubing:- PTFE Couplings on hoses self sealing Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

10 10 emt assero SF6CTU Continuous SF6 Live Topping Up SF6 Top Up Manager The assero SF6CTU is a unique SF6 live topping up device, designed for managing leakage of SF6 from Circuit Breakers and other plant to minimise SF6 released in exceptional circumstances where the asset has to remain in service and operational. Features of the assero SF6CTU Automatically shuts off at target pressure Text sent to operator upon completion Data (operator, site, equipment, mass, time etc) sent to ftp web server automatically Mains (AC) operation with battery back up. Automatically maintains pressure between defined upper and lower limits preferably just above alarm level Enables operator to remotely start top-up Activated alarm if abnormality (bottle low, pipe failure) Portable-easily transported (20kg ) Safety Fail safe pipe work check valve at zone end, pressure comparison either side and shut down Safety relief valve within unit See figure below. To achieve this goal of live topping up, the SF6CTU is continually attached to the gas zone in order to manage the gas pressure within a small pressure range (eg Bar). The unit will auto top up when set agreed alarm pressure levels go under a lower limit.

11 11 SF6CTU Technical Specifications PART NO. SF6CTU Operation Max flow rate 4.5 Kg/h Smallest Deviation 0.1 Barg (e.g. alarm limit 3.0 Barg, top up to 3.1 Barg) Accuracy MFC 1% of FS Pressure sensors 0.5 % FS Max inlet pressure: 10 Barg Min inlet pressure : 2 Barg Enclosure/Case Watertight and dust proof Easy-open, double-step latches Open cell core with solid wall design - strong, light weight O-ring seal Automatic Pressure Equalisation Valve emt fittings kit PART NO. SF6KIT Remote control Start filling by sending sms to the GPRS modem. Stop filling by sending sms to the GPRS modem. Data send to ftp server after each top up and/ or every x hour Safety Emergency relief- inlet valve and trigger GPRS modem to send sms and data to ftp server. Relief valve, adjusted to 11 Barg. Indication when filling, traffic/flashing light. Send sms when the AC power supply fails. Hoses Braided hoses - Swagelok/PTFE The EMT fittings kit is a complete kit of fittings required for connection of your SF6 Gas analyser to the majority of commercially available SF6 Switchgear and Circuit Breakers. The kit comes in a robust and hardwearing portable case. Certifications Leak test certificate (He Leak test 10-4 SCCS) Calibration certificate Pressure sensors + MFC Pressure test certificate (10 Barg) Power Supply AC power 110/230VAC 50/60Hz Backup battery, 1h Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

12 12 emt assero SF6MFU SF6 Mass Flow Controller for Filling and Topping Up operations The SF6MFU is used to expertly and accurately measure, control and monitor SF6 gas used in filling and topping up operations throughout the Electricity sub-station maintenance industry. SF6MFU Technical Specifications PART NO. SF6MFU Operation High Flow rate up to 50 Kg/hr - Filling Low Flow rate up to 15 Kg/hr- Topping Up Smallest Deviation 0.1 Barg Accuracy MFC 1% of FS Pressure sensors 0.5 % FS Max inlet pressure: 10 Barg Min inlet pressure : 2 Barg Control Fully automatic operation, set parameters, press GO, SF6MFU will fill or top up the equipment with exactly the correct amount of SF6 gas required, no waste or leakage. Automatic data logging for full traceability. SF6 is an expensive commodity and critical asset which can have a major environmental and detrimental effect if released into the atmosphere. EU regulation, EC842 has been introduced to control and limit SF6 leakage plus keep accurate records of SF6 inventory and usage. Therefore, concise measurement and control of SF6 usage is essential. The SF6MFU is a fully automatic portable mass flow controller which monitors, records exactly how much SF6 gas has been used during both filling and topping up operations. The key features of the SF6MFU offer a major improvement compared to existing SF6 Gas maintenance handling procedures currently being utilised throughout the world. Safety Emergency stop - auto shut down Hoses Braided hoses - Swagelok/PTFE Certifications Leak test certificate (He Leak test 10-4 SCCS) Calibration certificate Pressure sensors + MFC Pressure test certificate (10 Barg) Power Supply AC power 110/230VAC 50/60Hz Battery 5hrs Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

13 13 emt assero SF6H20 Mini Automatic SF6 Dewpoint Meter The most compact and easy to use SF6 Dewpoint model available. The assero SF6H20 Dewpoint Meter is a battery powered portable SF6 measuring device. The SF6H20 is simple to use and controlled by user-friendly operating sofware with a full date logging option. It s built in AutoTel function makes the SF6H20 the simplest SF6 Dewpoint meter to use on the market today. SF6H20 Technical Specifications PART NO. SF6H20 Unit Details Dewpoint Ranges: 80ºC DP to -20ºC DP 80ºC DP to 0ºC DP 80ºC DP to +20ºC DP 110ºC DP to -20ºC DP 100ºC DP to 0ºC DP Accuracy: ± 2ºC DP over full range Resolution: 12-bits Output 4-20mA loop powered: < ± 0.25% full range error Display Type: Blue 128 x 64 Dot LCD Graphics display with LED backlight Keyboard Type: 5-key metal dome tactile membrane keyboard Sensor Operating Principle: Ultra High Capacitance AL2O3 Sensor Automatic Calibration Autocal facility for span check and adjustment Single point calibration facility Temperature Operating Temperature: -10ºC to +50ºC Storage Temperature: -20ºC to +60º Serial Communications (logging version) Type: RS485 Data Format: 1 Start bit, 1 Stop bit, No Parity and No hardware handshaking Baud Rate: 9600 No of Addresses: 32 Power Supply Supply Voltage: VAC, 50-60Hz, 400mA Output: 6VDC, 15W Battery Cell: 3.6V Li-Ion 2.3Ah capacity Charging: Full Charge in 6 hours. Capacity Minimum of 250hrs* on full charged battery Environmental Approvals: CE EMC: Certified to BS EN 61000:2001 Physical Weight: 1.1kg (2.4lbs) Dimension (W,H,D) 97 x 112 x 202mm (3.82 x 4.41 x 7.95 ) * Battery capacity is quoted at room temperature. The battery capacity will degrade as the ambient working temperature falls. Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

14 14 assero H20P Portable Moisture in Oil Meter assero H20P - The very best for moisture in oil. For the very best results from your moisture in oil analysis, the assero H20P has been developed in response to many comments from our customers in laboratories and in the field, to develop a portable, robust, easy to use and highly accurate moisture meter for the measurement of down to 1ppm H20 in insulating oils. The microprocessor controlled assero H20P has a built-in battery and optional carry case, provide the versatility required by the laboratory and also the ease of use and portability required by the field personnel and carries a 5 year warranty. Easy to Use Simple to programme so that only a single button needs to be pressed for the analysis, everything else is automatic. The unique hermetically sealed glassware design is designed to eliminate any outside atmospheric moisture getting into the cell, allowing the highest sensitivity and performance on the market. The quickconnect system hermetically seals the glassware without the use of expensive grease or Teflon sleeves allowing trouble free assembly, maintenance and disassembly. Results & Records The built-in high speed printer provides a hard copy of results and allows duplicate print outs if required. Results can also be downloaded via the Results Manager software package onto a pc spreadsheet format. Spares & Accessories The assero H2OP is supplied ready for operation. A comprehensive glassware pack including electrodes, Glass titration vessel, leads, syringe, printer paper, etc, is supplied as standard. A calibration certificate and 5 year warranty is also provided. Reagents Specially formulated to provide optimum performance with all makes and models of coulometric Karl Fischer titrators, our unique reagents provide improved sample miscibility and solubility. assero H2OP reage nts are packaged in single-shot screw top bottles containing 100ml anode reagent and 5ml easy-snap ampoules of cathode reagent. A standard carton contains 8 anode charges and 8 cathode charges. The reagent pack comprises 8 x 100ml anode reagent and 8 x 5ml cathode reagent. assero H2OP Coulometric KF Moisture in Oil Meter Simple operation 10 user programmable methods 1ppm / 100% Results in ppm, mg/kg, % & µg water Multi language display & print out Small footprint Integral high speed printer Fully portable Low drift cell design Automatically compensated errors (patented technique) Optional carry case Conforms to ASTM D1533, D 4928, D6304, IP386, IP438, API MPMS Chapter 10.9, IEC60814, ISO , &

15 15 assero H20P Technical Specifications PART NO.assero H2OP Titration method Coulometric Karl Fischer titration Electrolysis control Automatic Compensated Errors control system End point detection AC polarisation End point indication Visual display/print out/acoustic beep Display 40 character alphanumeric backlit LCD Measuring range (possible) 1μg 100mg water Measuring range (typical) 1μg 10mg water Moisture range 1 ppm 100% water Max. sensitivity 0.1 μg Max. titration speed 2.0 mg per minute Max. current 400 ma Drift compensation Automatically controlled Start delay time 0 30 minutes, user selectable End delay time 0 30 minutes, user selectable Calculation modes Weight/weight, user programmable Weight/dilution ratio, user programmable Volume/density, user programmable Volume/volume, user programmable Display format μg, mg/kg, ppm, % Print format μg, mg/kg, ppm, % Statistics max, mean, min values upto 99 runs Method storage 10 user programmable methods USB output Connection to Results Manager Removable Data Storage USB Flash Drive Sample ID number User programmable Printer 42 character high speed thermal printer Stirrer speed Microprocessor controlled Dimensions & Weight 250 x 245 x 120 mm, 3kg Calendar/clock Analysis time & date print out Battery low indicator Display & print out indication Power supply V AC, Hz. 12V DC car adapter/internal battery Precision μg ±3μg, 100μg-1mg ±5μg, above 1mg ±0.5% Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

16 16 assero TAN Acidity in Oil Meter The assero TAN Total Acid Number titrator exclsuively available from Energy Maintenance technologies (EMT) Ltd has been designed to offer maximum specifications and features whilst being priced at a very competitive level. This titrator conforms to ASTM D664 for determination of acidic constituents in petroleum products, lubricants and transformer insulating oils. Features Simple to use for new users to TAN Fast and Precise results (5 min max) Built in pre-programmed TAN method. Measurement down to 0.001mg/g KOH acidity Results in mg KOH/g. Compact and light- weighs less than 5 kg Data Logger for the last 50 titration results. Transmission of results to printer or PC. High precision 10ml syringe. Resolution 1/40,000 of syringe vol (0.25ul)

17 17 assero TAN Technical Specifications PART NO. assero TAN Non-volatile memory 3 titration programs depending on TAN content, Blank titration, Clock/calendar. Name of up to 4 operators Up to 50 results stored in Data Logger Languages English, Spanish, French, Italian Display Graphic backlit LCD, 128 x 64 dots Keypad Membrane, 7 keys, guaranteed up to 6 million strokes per key Material: PET with protective treatment Syringe volume Standard syringe 10 ml Power supply V AC, Hz Electrical safety Meets EC, EN EMC Meets EC, EN and EN Permitted temperatures Operating: ºC. Storage: ºC 80 %, relative humidity, non condensing Enclosure ABS and enamalled steel Physical parameters Weight: 4 kg approx. Dimensions: 130 x 160 x 300mm Resolution 1/40000 of syringe volume (0.25ul) Dispensing accuracy 0.2 % for volumes higher than 10 % of syringe Dispensing reproducibility ± 0.1 % for volumes higher than 10 % of the syringe Liquid contact materials Syringe: borosilicate glass and PTFE Electrovalve: PTFE and KEL-F. Tubes: PTFE Inputs and outputs Differential measurement: 2 BNC connectors. For external keyboard, minidin connector. RS232C bidirectional for PC or printer, telephone connector. RS232C for balance, telephone connector Stirrer control: On/Off and speed, RCA connector Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

18 18 Service Support Offerings At EMT, we endeavour to offer our customers, high performance analytical results coupled with a fast turnaround of repair and service, ensuring the data generated is of the highest quality. Therefore, it is essential, that the instrumentation is fully operational with minimum downtime in order to satisfy the high demands and expectations of customers. This expected level of performance from high performance analysers, require the supplier of such instrumentation to offer the highest level of customer support with respect to: 1. Regular routine maintenance 2. Fast-response breakdown cover 3. Comprehensive training courses 4. Spares Availability 5. Calibration & Validation Qualification EMT s Customer Support Team offer their customers all the above and more, in order to provide the highest level of technical-added-value and service support possible ensuring your equipment performs to it s highest level possible. To do this, we employ only factory trained personnel with over 45 years experience in the field of SF6 and Transformer Oil monitoring and analysis. Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

19 19 SF6 and Oil Recovery, Reprocessing & Regeneration In collaboration with Enervac Corporation... World leaders in SF6 and Oil Reprocessing technology. What we offer: Transformer Oil Purification and Reprocessing Equipment: Insulating Oil Reprocessing Filtering and Regeneration equipment SF6 Gas Servicing Equipment: Reprocessing Filtering and Refilling equipment SF6 Training: Our staff are certified in accordance to EC 305/2008. Minimum requirements for personnel handling and recovering SF6 from high voltage switchgear. Seminar and Training programmes: Delivered to improve knowledge of the most up to date technologies for ESI asset protection plus competency assessment, training and certification. Technical Service and Support Packages About Enervac Enervac Corporation of Canada is a world leader in the manufacture and development of processing and recovery systems for insulating oils and SF6 gas. Enervac have been engineering and supplying systems since Enervac s range of high performance filtration and reprocessing equipment extends the life of the insulating liquid or SF6 within transformers, circuit breakers or switchgear, removing contamination including carbon, moisture, sludge, particulates and breakdown products which enable the user to re-use the insulating medium rather than replenishing with new oil or SF6, plus the environmental and waste management costs. Enervac s unique corrosive sulphur removal system for Transformer Oil regeneration is fast becoming the reprocessing technology of choice for maintenance engineers throughout the globe. Call our team now to discuss your requirements. Energy Maintenance Technologies Ltd, Church End, Markyate, Hertfordshire, AL3 8PY. Tel: +44 (0) Tel: + 44 (0)

20 Energy Maintenance Technologies Ltd Church End, Markyate, Hertfordshire, AL3 8PY Tel: + 44 (0) Tel: +44 (0) enquiries@emt.uk.com