Our Services
We offer a range of services related to electrical power systems from 132kV to low voltage.
Electrical Network Design
- Low voltage to extra high voltage
- Network topology and layout
- Secure power and resilient networks
- Specification of switchgear
- Specification of protection and control
- Specification of transformers.
- Layout drawings for substations.
- Civil design for substations
Protection System Design
- Tailored protection for your equipment
- From overcurrent and earth fault protection of a distribution transformer to complex schemes covering generation and their connection to the network
- Specification of current and voltage transformers, relays, meters and interconnections
Network Studies
- Load Flow
- Fault Level
- Protection and Discrimination
- Arc Flash
- Generator connection (G99)
- Production of comprehensive reports to present the findings of the studies.
Earthing Measurements and Design
- Soil resistivity measurements and creation of a site specific soil model.
- Fall of Potential measurements to determine the existing electrode resistance.
- Design services to provide cost effective designs to BSEN 50522/ENATS 41-24.
Cable System Design
- Sizing of AC or DC cables to account for load current, fault level, installation conditions and volt drop.
- Cable pulling calculations.
- Specification of cable, joints and terminations.
- Production of cable route drawings.
- Production of trench section drawings
Switchgear Scheme Design
- Creation of wiring schematics for specific switchgear and relays.
- Bus wiring diagrams.
- Block cable diagrams.
- Interconnection diagrams
Protection Relay Setting Files
- Creation of relay specific setting files based on the overall scheme, switchboard schematics and protection requirements.
- Schneider SEPAM/MICOM, Areva MICOM, ABB, SEG , Siemens (Reyrolle) relays.
Fault Level Measurement
- If you need to verify fault levels provided by the DNO or need to confirm site specific fault levels because the DNO has not provided this data we can measure the fault levels for your site.
- A logger meter is connected to the electrical system via current and voltage transformers for a un-intrusive measurement.
Temporary Metering
- G5/4 Harmonic Surveys
- Power quality Issues
- Determining the load profile for your site or specific circuits within your site.
Firm Frequency Response (FFR) Testing
- Confirmation testing to National Grid requirements
- Results report in format specified by National Grid
About PSC
PSC Ltd was established in 2010 to provide independent expertise in electrical power systems with an emphasis on high voltage systems.We are a customer focused company run by Engineers so we aim to offer you the optimum well engineered solution to suit your requirements. We have extensive experience of many different types of business including hospitals, universities, MoD bases, data centres, water and wastewater treatment works, STOR and FFR generation, manufacturing sites, airports, ports, wind farms and solar farms.
