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WEG MVSG Medium Voltage Switchgear 11–36kV
Model: MVSG-36kV
4-hour response · Pricing in SAR · Delivery across all KSA regions
MVSG-36kV — WEG MVSG Medium Voltage Switchgear 11–36kV
The WEG MVSG Medium Voltage Switchgear is a factory-assembled, type-tested metal-enclosed switchgear system covering voltage classes from 11 kV to 36 kV, designed for primary and secondary power distribution in industrial facilities, utility substations, and infrastructure projects across Saudi Arabia. The MVSG-36kV variant addresses the 33/36 kV distribution class used extensively by SEC in its transmission and primary distribution network, and is employed in the incoming and sectionalising duties at substations serving ARAMCO upstream facilities, SABIC industrial cities, NEOM infrastructure zones, and NWC water utility networks. Each panel is factory-built, routine-tested per IEC 62271-200, and delivered on site for rapid cable connection and energisation.
The MVSG uses vacuum circuit breakers (VCB) as the primary interrupting device, with SF6 gas as the arc-quenching medium in the busbar compartment for the 36 kV class. Vacuum interrupters provide a minimum mechanical and electrical life of 10,000 operations at rated current and 100 close-open operations at rated short-circuit current (40 kA peak), far exceeding the operational demands of most industrial and utility applications over a 30-year service life. The integrated secondary equipment suite includes numerical protection relays (WEG WHM-R or compatible third-party relays), metering current transformers (0.2 accuracy class for revenue metering), voltage transformers, and a low-voltage control circuit compliant with IEC 61850 for modern digital substation integration. The switchgear is rated for 50°C continuous ambient with no derating of its current-carrying busbars.
Saudi Arabia's rapidly expanding transmission and distribution infrastructure — driven by Vision 2030's industrial and smart city programmes — creates sustained demand for 11–36 kV switchgear across SEC network expansion projects, NEOM's multi-voltage distribution network, Qiddiya entertainment city, and the Red Sea Project resort infrastructure. ARAMCO's ongoing Gas Compression Program and crude oil increment projects require IECEx or ATEX-classified switchgear buildings in hazardous area zones, and WEG's ability to supply the MVSG with stainless steel enclosure trim and IECEx Zone 2 classification documentation meets these requirements. SEC's engineering specification GSTD-29-SDMS-025 for medium voltage switchgear provides the technical baseline against which the MVSG is evaluated and accepted.
Razz Middle East provides full project support for WEG MVSG procurement and installation across Saudi Arabia, including SEC substation approval drawing preparation, protection relay settings engineering, factory acceptance test (FAT) witness management at WEG's Brazilian manufacturing facility, and on-site commissioning and site acceptance testing (SAT). Our team coordinates third-party inspections by SGS, Bureau Veritas, or TÜV Rheinland as required by ARAMCO and SABIC project requirements. Contact Razz for a switchgear schedule, protection philosophy document, and SAR-denominated project budget quotation.
Technical Specifications
Full specifications for the MVSG-36kV
- Voltage Class
- 11 kV, 22 kV, 33 kV, 36 kV
- Rated Short-Circuit Current
- Up to 40 kA (peak)
- Interrupting Device
- Vacuum circuit breaker (VCB)
- Busbar Insulation
- SF6 (36 kV), air-insulated (11–22 kV)
- Mechanical Life
- 10,000 operations at rated current
- Protection
- IEC 61850-compatible numerical relays
- Ambient Temperature
- Up to 50°C continuous
- Type Test Standard
- IEC 62271-200
Key Features & Benefits
- Vacuum circuit breakers with 10,000-operation mechanical life and 100 short-circuit breaking operations provide reliable 30-year service life in utility and industrial substation applications.
- IEC 62271-200 type-tested metal-enclosed design ensures predictable arc fault containment and personnel safety, meeting ARAMCO and SABIC safety engineering requirements.
- IEC 61850 GOOSE messaging and sampled values capability enables digital substation integration with modern protection and control systems across Vision 2030 infrastructure projects.
- Revenue metering class 0.2 current transformers and protection class 5P20 CTs in a single panel comply with SEC technical specification for both billing and protection accuracy requirements.
- 50°C continuous ambient rating with no busbar derating ensures reliable continuous full-load operation in Saudi Arabia's hot substation environments without forced cooling.
- IECEx Zone 2 classification option with stainless trim meets ARAMCO hazardous area electrical installation requirements at gas processing and upstream production facilities.
Industrial Applications in Saudi Arabia
- SEC primary distribution substation incoming and sectionalising panels in 33/36 kV network expansion programmes across Saudi Arabia's urban and industrial corridors.
- ARAMCO upstream and downstream facility main incoming switchgear and motor control centre (MCC) incomers at elevated voltage ratings in the Eastern Province.
- NEOM and Red Sea Project primary distribution switchgear for large-scale resort, city, and industrial infrastructure where 33 kV distribution minimises cable costs across large sites.
- SABIC and SIPCHEM industrial city primary substation switchgear serving large transformer bays and industrial process distribution networks in Jubail and Yanbu.
- NWC major water pumping and treatment station primary switchgear where 11–22 kV supply switching is required for large pump motor starters and transformer incomers.
- Data centre primary switchgear in Riyadh, Jeddah, and NEOM facilities where 11 kV grid connection requires reliable, type-tested medium voltage switching equipment.
Industrial Supplier in Saudi Arabia
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Frequently Asked Questions — MVSG-36kV
Common questions from buyers in Saudi Arabia and the GCC