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High Voltage Testing and Commissioning

High Voltage Services

High Voltage Services – 11kV | 33kV | 132kV
Inspections and Testing

Protek(UK) provide a range of HV (High Voltage) electrical contracting services across a diverse range of customers. Our full turnkey HV electrical contracting services cover Testing and Commissioning, Energisation and Operating and Maintenance for both new HV electrical installations and refurbishments for private networks up to and including 132kV.

Our experience also covers wind energy (HV offshore wind & HV onshore wind), solar energy, bio energy, hydro energy and battery storage and STOR (Short Term Operating Reserve) generating technology at 11kV, 33kV and up to 132kV.

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The scope of work includes inspecting the tripping batteries and charger, visual inspection of all substation equipment, checking of the building security and testing the transformer insulating oil samples.

We are able to develop and implement comprehensive high voltage inspection, testing and maintenance strategies in order to mitigate the risk of an unforeseen breakdown or safety related issue.

Protek(UK) can set out comprehensive control operation and maintenance agreements in order for our team of high voltage electrical specialists to carry out testing and maintenance and act as SAP (senior authorised personnel) as part of your extended team.

High Voltage Inspection Testing Services
  • Oil Sample and Testing (DGA, electrical

  • breakdown, acidity, water & PCB content)

  • Switchgear Testing, AC Pressure Testing

  • Ductor Testing, CT’s – Ratio & flick tests

  • Mag curve

  • VT’s –Ratio & polarity checks

  • Neutral Voltage Displacement

  • Transformer Auto Tapping Relays

  • Intertripping Schemes

  • Earthing & Soil Resistivity Measurements

  • Final Earth Electrode Resistance, Functionality Checks,
    Protection Testing

  • Protection, Primary and Secondary

  • Injection Timing Tests

  • Generator Loss of Mains and G59 Protectio

  • HV and LV cable fault finding and repair services

  • HV pressure testing up to 68kV and sheath and cable fault
    identification.

  • Capability to identify and locate cable faults for systems
    up to 66kV

Equipment
  • HVA28TD High Voltage Test Set up to 28kV

  • HVA68-2 VLF Test Set up to 68kV

  • MeggarMIT 515 Insulation Resistance Tester 5kV

  • MFM 10 Sheath Fault Location System

  • ESG NT Digital Earth Fault Locator

  • SFX32 Cable Fault Locato

  • MeggarMIT1025 10kV Diagnostic Insulation
    Resistance Tester

  • Cable Spiking Services

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Operation & Maintenance Services

Protek(UK) manage many operational and maintenance contracts that have unique requirements which can be due to factors such as operational constraints and security of supply. From substation supply and installation, to managing the integrity of the high voltage system and life cycle, Protek(UK) have extensive experience in providing cost effective solutions that ensure greater reliability of the electrical supply, whilst delivering economies to site.

The Testing and Commissioning of High Voltage Electrical Equipment is a highly specialised activity. With every HV electrical installation our trained engineers carry out their specified area of work to the highest technical and safety standards.

Our range of services include HV protection grading and testing, earthing studies, 11kV pressure testing and the allocation of an SAP engineer for specific switching needs.

We offer a full commissioning service. This services is integrated within our range of other testing services available, which included.

Partial Discharge Testing

Partial Discharge Testing can allow you determine to your planned preventative maintenance, repair or the replacement of your switchboards and other equipment, resulting in a preventative method rather than having to replace equipment such as switchboards as an emergency which will incur uneconomical cost and downtime.

Partial discharge occurs within layers of insulation of High Voltage equipment, it is a low level discharge that occurs within cables, joints, terminations, switchgear. Each discharge while at low level is crossing the air space gap present within layers of insulation or production faults within the material.


Repeated discharge eventually breaks down the insulation to create a failure in the insulation, this is usually catastrophic and result in a replacement of usually a highly expensive piece of equipment.

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For more services Contact Us