WIRE-TEKS INT’L CO. LTD offers comprehensive solutions to ensure the reliability, safety, and efficiency of your electrical power systems.

Services Offered:

• Protection Coordination Studies: We conduct detailed protection coordination studies to ensure that protective devices in your power system operate in a coordinated manner, preventing cascading failures and minimizing downtime.

Picture description: Voltage transformer testing at the OB/OB substation during relay coordination studies

• Fault Analysis: We analyze various fault scenarios to assess the impact on your power system and identify potential vulnerabilities.
• Relay Setting Calculations: We perform accurate relay setting calculations to optimize the performance of protective devices and ensure their proper operation.
• Arc Flash Hazard Analysis: We assess arc flash hazards in your power system to identify potential risks and implement appropriate safety measures.
• Transient Stability Analysis: We analyze the transient stability of your power system to evaluate its ability to withstand disturbances and maintain system stability.
• Harmonic Analysis: We conduct harmonic analysis to assess the impact of harmonics on your power system and identify potential issues such as equipment overheating and premature failure.

VT testing at the OB/OB substation ensures current transformers (VTs) accurately scale high voltage currents for relaying and metering, crucial for power system protection. The process involves setting up the VT analyzer, conducting tests like VT ratio, polarity, excitation, burden, and insulation resistance to verify accuracy, and checking for potential faults or inaccuracies.

The results are analyzed to ensure the VTs meet specifications, and any issues are documented for maintenance or repair. This ensures the reliability and safety of the power system by maintaining proper measurement for protection devices.