Matelec Group, El Nozha 66kV GIS Substation

Scope of Work The development and the detailing of the design and the construction of a 66kV Gas Insulated Substation including design, procurement of materials, deliveries to site, installation and equipment erection, testing, commissioning up to the final taking-over certificate, training of operation and maintenance personnel.Get price

Construction and Service Life of GIS Substation - An

May 25, 2019 · GIS is assembled of standard equipment modules (circuit breaker, current transformers, voltage transformers, disconnect and ground switches, interconnecting bus, surge arresters, and connections to the rest of the electric power system) to match the electrical one-line diagram of the substation. A cross-section view of a 242-kV GIS shows above the construction and typical dimensions.Get price

Effective and Safe Testing of GIS Switchgear - Electricity

Gas-insulated switchgear (GIS) in particular poses unique and special challenges, including the connection of the test equipment. In today‘s world, where testing is increasingly performed in a non-invasive manner, test systems must offer a certain flexibility and a wide range of testing solutions in order to get proper results in a timely manner.Get price

STS 5000|Multifunction substation test set - Altanova Group

STS 5000 is a multifunction substation maintenance commissioning test system for current, voltage and power transformers designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.Get price

Construction Maintenance - BHI Energy

BHI has unparalleled expertise in substation and transformer apparatus installation and all construction related activities such as site-work, ground grids, foundations, and welding, our specialized training gives us the ability to optimize the performance and reliability of your equipment.Get price

Preventive maintenance of substation equipment and

Sep 30, 2019 · The initial equipment cost of GIS is usually higher than that of conventional Air Insulated Substation (AIS). Preventative maintenance of substation equipment and transmission lines. The advantage and life cycle cost analysis are generally considered before deciding for GIS. The land area required for a GIS substation is in the order of 10% to 20% of that for an AIS substation considering the switchgear bay.Get price

OPERATION MAINTENANCE MANUAL TYPE GIS 36 kV CUBICLE

Operation Maintenance Manual 06 HANDLING AND STORAGE 4.3. Transport and Handling The following precautions should be taken in moving the unpacked GIS. 4.3.1. Precautions for Moving The equipment may be moved either by suspending it with a lifting apparatus or by hauling with lifting trucks. The following precautions should be observed.Get price

Electrical Substation Design, Testing and Commissioning

Recent technological developments have had tremendous impact on all aspects of substation design, operation, maintenance, safety, and grounding, testing and troubleshooting. A substation is a high – voltage electric system facility. It is used to switch generators, equipment, and circuits or lines in and out of a system.Get price

Gas-Insulated Substations - GIS

Nov 10, 2010 · A gas-insulated substation (GIS) uses a superior dielectric gas, sf 6, at moderate pressure for phase-tophase and phase-to-ground insulation. The high voltage conductors, circuit breaker interrupters, switches, current transformers, and voltage transformers are in Sulfr hexafluoride gas inside grounded metal enclosures. The atmospheric air insulation used in a conventional, air-insulated substation (AIS) requires meters of air insulation to do what Sulfr hexafluoride can do in centimeters.Get price

Gas-insulated switchgear (GIS) - Hitachi ABB Power Grids

As a result, Hitachi ABB Power Grids'GIS offers outstanding reliability, operational safety and environmental compatibility. It provides a complete range of products for all ratings and applications from 72.5 kV to 1200 kV matching current and future requirements for modern switchgear.Get price

sf 6 Equipment Maintenance, Repair, and Replacement and

Substation Maintenance Operation Maintains, repairs, and replaces sf 6 it Equipment Engineering Developed the EMS and gaz sf6 gas Evaluates sf6 gas gas equipment/assets management procedures. Oversees the reporting of emissions. gg Oversees the storage of sf6 gas gas and the measurement of emissions. Marine Pollution Control Developed work practices for theGet price

Substation Maintenance and Construction Manual Circuit

table of contents (continued) pacific gas and electric company substation maintenance and construction manual circuit breakers bookletGet price

Electrical and Civil Work Engineering for AIS and GIS Substations

Electrical and Civil Work Engineering for AIS and GIS Substations. Complete design and engineering of the primary and secondary equipment for the substation. Project: 132/33 kV Afam. Location: Nigeria. Client: Taleveras Group, Nigeria. Complete design and engineering of the primary and secondary equipment for the substation. Project: 132/33 kVGet price

Commissioning Testing of Electrical Systems Training | GLOMACS

Major Components of GIS Substations; GIS with Vacuum Interrupter; DAY 2 Commissioning Test Equipment (CPC 100, Omicron 356, CIBANO, ARCO, TESTRANO) and Circuit Breakers including Instrument Transformers. Types of Tests and Equipment for Commissioning; IR test, Primary Injection Test, Secondary Injection Test; HV Test, AC Hipot Test, DC Hipot Test and ConnectionsGet price

A- ONGOING PROJECTS

Each mobile substation contains: • 5 GIS MV Switchgear • Auxiliary power supply equipment (service transformers, DC system, Generator, etc.). • Cables and accessories. • Earthing systems. 10- Nigeria, Implementation of Seven New Medium Sized Power Stations in the Niger Delta (0155) Customer: Niger Delta Power Holding Company of NigeriaGet price

Substations - Global Construction Contracting Company

Aug 01, 2015 · Substations. We provide complete Substation Construction Services for projects related to civil, electrical mechanical works from 11Kv to 380 Kv both for AIS, GIS hybrid substations. Supply, erection, testing, commissioning and maintenance of up to 380KV sub-stations (AIS, GIS type), indoor and outdoor equipment, large power transformers, HV/MV switch gears and Mobile Substations with advanced Control, protection and measurement system.Get price

Gas Insulated Switchgear : Working, Testing Its Applications

ComponentsAdvantagesDisadvantagesGas Insulated Switchgear ApplicationsThe Gas-insulated switchgear design can be done using different components like circuit breakers, bus bars, disconnectors or isolators, transformerslike voltage and current, earth switches, lightning arresters, and surge arrestors. When the substation is connected with gas-insulated switchgear then it is called GIMES or gas-insulated metal-enclosed substation. This kind of technology is not invented recently but it is available for the past 30 years. In gas-insulated medium-voltage switchgear, Sulfr hexafluoride gas works like an insulation material whereas the vacuum technology is mainly used for the purpose of interrupting. Even though, for both insulation and interruption, the sf 6 gas can be used in several medium voltage gas insulated switchgear systems. However, for such devices, sf6 gas gas pressures are dissimilar for insulation as well as an interruption. For insulating, this gas pressure is usually kept under 2.5 bar, whereas for interrupting, it is ranged from 5 – 7 bar.Get price

Global monitoring|for substation - Altanova Group

ALTANOVAs Global Monitoring for Substations is a reliable and accurate system designed to perform a condition-based maintenance approach. It is easy to install and non-intrusive, suitable for new substations and existing one, as it can also be customized according to the asset layout.Get price

Substation Cost Estimator | PEguru

Each piece of equipment is given more than one (1) type. Why? Consider a 345kV – 138kV station, if there’s one breaker present for each voltage then (in the form to the left, under circuit breaker) pick a 345kV breaker in type 1 and 138kV for type 2. Certain equipment require structural steel.Get price

UniTech – Home

Construction of 400 KV GIS SUBSTATION BAZYAN We built and commissioned the first 400 KV Gas Insulated Substation in the Kurdistan Region of Iraq, the equipment isGet price

Substation Construction Maintenance | New River Electrical

Gas Insulated Substation (GIS) technology is another specialty where our craftsmen excel. Subcontractors. Subcontractors are typically used only for major site grading work or testing and commissioning services if required. New River can offer complete Design/Build EPC services via our relationship with our consulting engineering partners.Get price

Substation Equipment that secures the quality of electric

Since the 1970s, Toshiba has accumulated overseas FTK / TK project management experiences of more than 100 GIS substations with voltages up to 800kV *1 all over the world. Based on our rich experiences, we will continue to offer provide substation systems equipment, with high reliability, safety, and quality.Get price

5 Differences Between Air-Insulated Substations and Gas

ConstructionInstallationOperationMaintenanceTotal Cost of OwnershipGIS high voltage substationengineering uses the gas sulfur hexafluoride for insulation, whereas AIS uses air insulation in a metal-clad system. Sulfur hexafluoride is five times heavier than air and offers excellent extinction behavior. Another significant construction-based difference between the two switchyards is that a metal-clad AIS uses three-position draw-out circuit breakers (on, off and test). GIS systems use fixed, mounted circuit breakers. The sealed mounted breakers are a ‘sealed-for-life’ technology, whereas the AIS breaker can be removed for maintenance and troubleshooting.Get price

Gas Insulated Switchgear - GE Grid Solutions

ranging from transmission and substation automation to distribution networks and smart metering, enabling greater safety, connectivity and increased security. Through an alliance with XD Electric ®, GE has extended its portfolio to include all high, extra-high, and ultra high-voltage power equipmentGet price

Live Online Substation: Components, Testing and

Equipment testing and maintenance is critical to the reliability of the equipment in a substation. This course provides an overview of substation equipment, and equipment operations and maintenance based on ASTM, NETA and IEEE standards. This course is designed to provide an in-depth study to aid skilled qualified substation maintenance technicians in the safe performance of substation components preventive maintenance.Get price

GIS | High-Voltage Gas Insulated Switchgear Substations

A gas insulated substation (GIS) is a high voltage substation in which the major structures are contained in a sealed environment with sulfur hexafluoride gas as the insulating medium. GIS technology originated in Japan, where there was a substantial need to develop technology to make substations as compact as possible.Get price

Substation Solutions | TMEIC

C-GIS. The Cubicle type Gas Insulated Switchgear (C-GIS) is the compact solution for voltage level from 12kV to 84kV. The uses age of Sulfr hexafluoride gas insulation have made the equipment smaller and lighter compared to air insulated switchgear or tank-type GIS that are used in the same applications.Get price

Fire Protection in Substation Transformers | Utility Products

Jun 11, 2020 · Arguably, one of the most important piece of equipment in any substation is a power transformer. Oil-filled power transformers also pose the largest fire risk in any substation. Fire protection systems designed specifically to address the unique hazards posed by power transformers are a design consideration that must be recognized and understood.Get price

Vine Substation – Tucson Electric Power - TEP

Nov 16, 2020 · TEP’s Tucson Substation uses closed-pressure equipment. Although documentation from the GIS manufacturer describes the sf 6 leakage rate as less than half of one percent each per year, continual field testing indicates that Tucson Substation GIS equipment has experienced no leaks since being placed into service in 2010.Get price