RVCB and HV Switchboard Installation, Testing and Commissioning
High Voltage Switchgear Testing
- Overcurrent and Earth Fault Schemes
- Directional Overcurrent and Earth Fault Schemes
- Differential Schemes
- Bias Differential Schemes
- Unit Protection Schemes
- Time Limit Fuse Schemes
- Buchholz Protection Schemes
- Restricted Earth Fault Schemes
- Stand by Earth Fault Schemes
- Neutral Voltage Displacement Schemes
- Bus Zone Schemes
- Frame Leakage Schemes
Protection Testing
- AC Pressure Testing of the Primary Circuit
- AC Pressure Testing of the Secondary Circuit
- Current Transformer Mag Curves, Flick, Ratio Tests
- Voltage Transformers Polarity and Ratio Check
- Primary Injection Testing of Protection Relays
- Secondary Injection Testing of Protection Relays
- Circuit Breaker Timing Testing
- Functionality Checks
Protection Upgrades, Testing & Commissioning
The protection scheme is central to any power distribution system. Many protection schemes use obsolete Electro-Mechanical Relays, which we replace with Modern Intelligent Electronic Devices. We have more than 40 years of experience in the Design, Manufacture, Installation and Commissioning of Protection Panels and Schemes, working with Relays from ABB, Siemens, Alstom Grid and Schneider Electric
Factory Acceptance Testing
We offer a range of Factory Acceptance Tests at our facility in Abercarn, which can be tailored to our customers’ requirements
HV Maintenance Services
- Inspection, Test and Maintenance of Main Low Voltage Distribution Pillar or Main Air Insulated Circuit Breakers
- Inspection of the Substation for Security, Correct Signage, and Environment
- Compilation of a Comprehensive Report detailing Test Results, Faults identified, and any Remedial Actions required
- Provision of Cost Estimates to effect Repairs and carry out required Remedial Works. Call Out Facility
- Switching and isolation of the systems
- Inspection, Testing and Maintenance of the High Voltage Switchgear
- Inspection and Testing of the Protection Devices
- Inspection and Testing of the Switchgear Tripping Battery and Charger System
- Inspection, Testing and Oil Sampling of Transformers
- Maintenance and Testing on all manufactured ranges of equipment.
Transformer Installation, Testing, Commissioning, Servicing & Upgrading
We Install, Test and Commission New or Refurbished Transformers, and are familiar with the majority of manufacturers
Transformer Testing Includes
- High Voltage Winding Insulation Resistance
- Low Voltage Winding Insulation Resistance
- Winding Ratio Testing
- Buchholz Relay Testing
- Oil Sampling and Testing
VT’s CT’s Upgrading
- Replacing Oil-Filled Voltage Transformers ( VT's ) with Cast Resign Voltage Transformers
- Replacing and Upgrading both wound and bar Primary Current Transformers ( CT's )
Switchgear Refurbishment
We maintain SWS Type ET, UE, EM And EO1 Switchgear, as well as Switchgear from a wide range of other manufacturers.
We also work with an increasing number of customers who want to safer option of operating their Switchgear remotely. Understand customer requirements is the first step. Thereafter, we Design, Manufacture, Install and Commission Retrofit Electrical Switchgear Control Systems to meet their requirements.
In addition, we provide Controls to raise and lower Vertically Isolated Switchgear remotely. Many older ranges of Switchgear use Umbilical Leads to connect secondary wiring between the circuit breaker’s moving and fixed portions. We can Design, Manufacture, Install and Commission Umbilical Leads tailored to your needs.
SPE Energy specialise in the provision of reliable engineering and cost effective solutions
