Saudi Arabian Grid Code May 2024

Hz). 2.5.5.21 On-load tap changing facilities shall be required on Generator step-up transformers for Dispatch of Reactive Power. The transformer voltage ratio, tapping range, and step sizes must be such that the Reactive Power requirements specified in (2.5.5.9) are fully complied with. 2.5.5.22 The TSP shall be entitled to acquire such operational metering, control parameters, and Plant data as it may reasonably require for the purposes of discharging its statutory and regulatory obligations. 2.5.5.23 A Generating Unit shall be capable of: a) Under Steady State Conditions: continuous uninterrupted operation for the voltage variation specified in (2.4.3). b) Under Transient Conditions: i. For Synchronous Generating Units withstanding Faults on the Transmission System which may cause the voltage at the Connection Point to drop to between 0% and 80% of the nominal voltage for a period of up to 300 millisecond in any one phase or combination of phases, followed by a period of one (1) second where voltage may vary in the range 80-110% of the nominal voltage, and followed by a 30-minute period where voltage may vary in the range specified in ii. For Power Park Modules: withstanding Faults on the Transmission System which may cause the voltage at the Connection Point to drop to 0% for a period of up to 300 millisecond in any one phase or combination of phases, followed by a period where voltage may vary in a range specified by: at the lower side, a linear restoration of the voltage towards 80% of the nominal voltage within 1.3 second after initial voltage drop. and at the upper side, not exceed 120% of nominal voltage for more than 1s in any one phase, and followed by a 30-minute period where voltage may vary in the range specified in (2.4.3). These requirements are applicable to BESS in both charging and discharging modes. Above 0.9 p.u., the BESS must be capable to maintain normal operation. Within the PPM Fault withstand capability Chapter 2 - Connection Code The Saudi Arabian Grid Code Updated Version: May 2024 area, the BESS facility must provide maximum voltage support by delivering a controlled amount of additional reactive current to ensure that the BESS contributes to the voltage stabilisation within the design capabilities of the BESS. Figure