GK Power Expertise Pvt. Ltd. Nallambakkam, Chennai, Tamil Nadu

The numerical DC supervision relay used in typical traction sub-station As per RDSO specification, Relay function for  monitoring and control the DC supply from battery station. Features: Separate communication port for SCADA (RS232/RS485) IEC standard open protocol Large 20X4 LCD Display Password Protection for all setting Disturbance recorder Continuous monitoring

GK Power presents its Optical Current Transformer as an alternative to the existing conventional currenttransformers, providing an advanced measurement solution for both metering and protection applications, based on a cutting-edge patented optical sensing technology. Some of the main features of our optical current transformer are: Broad bandwidth, capable of measuring both AC and DC currents up to the 100th harmonic and above. IEC 60044-8 Class 0.2 metering accuracy. Unlimited dynamic range. IEC 61850-9-2 LE compliant output with no merging unit required. Smaller size and lighter weight. Maintenance-free and longer life-span. Provides explosive failure mode prevention and open secondary protection. Solid insulation. No SF6 gas or oil is required. Environmentally-friendly.

The in-house developed and manufactured on load tap changer (OLTC) is featured with integrated design, liquid (transformer oil) insulation and transition resistors. It is used to change transformer taps under workload and adjust the output voltage. It is very essential to maintain the system voltage within prescribed limits for the better health of electrical equipment’s by improving the quality of power supply. The product, a high speed resistor type is designed for use in 3 Phase distribution and Power grid transformers.   Features: Simple Geneva device operating mechanism Top quality components that ensure reliable performance Several features are incorporated within the mechanism to promote long service intervalsand reliability. Economy in design Solid wiping contact used to control the surface film on the contact. Draw out / Replaceable type electrical control wiring Tap changers are type tested as per IS 8468/1977. Our OLTC have reasonably sized side flange, so that we can replace entire power switch components without dismantling the OLTC from the transformer. Our OLTC tanks are sand blasted and powder coated to 100 micron thickness so that they are scratch proof and long lasting. Compact size reduces overall space requirements in transformer to ensure cost effective solutions. The design and manufacture of equipment is subject to constant improvement

Medium voltage switchgear assemblies are designed from 3.3 to 33 kV. All these are designed for indoor application considering customers’ space constraints. The VH-AIS range of switchgear has a metal clad design, and its robust construction ensures it functions well even in adverse environment conditions. We give you a choice of fixed or withdrawable Vacuum Circuit Breakers in the assembly. Switchgear Assemblies, Breakers, Contactors are designed & manufactured according to IEC 62271 series. We assure compact size of assembly without compromising safety features. Protection against 40kA for 3 seconds can be delivered in a design as compact as 600mm Features: Up to 50kA, 3 second short circuit withstand capacity Loss of service continuity-2B Degree of Protection : IP4X& IP5X Additional Customised safety interlock Efficient 10000 switching operations Structural Based Design Ample Cable Termination Space Hinged Doors

Empowered by our sophisticated infrastructural facilities, we are capable of designing and manufacturing a wideassortment of control panels and other equipment as per IEC and IS regulations. The control panels, starters, motor control centers, switch boards and PLC automation system are designed as per IEC 60947-4 / ISI 3947- Part 4. Our enclosures undergoes 7 Tank Process Pretreatment and pure polyester powder coating processes to ensure that they are corrosion resistant and sturdy. The enclosures are fabricated from 16/ 14 SWG, CRCA Sheet Steel.Motor Control Centers We are a prominent name engaged in manufacturing a vast range of motor control centers which are at par with international quality standards. Offered at economical prices, our panels are sturdy in design and defect free in nature. We offer Motor Control Center under following specifications. Form IV of separation as per IS: 8623 is maintained. Types of starters include Automatic Star Delta, Direct On-line, Soft Starters, Variable Frequency Drives, Stator Rotor Starters and Autotransformer Starters Variable Frequency Drive Panels Roughly 50% of the total electrical energy generated in the company is consumed by rotating equipment. Variable speed drive technology offers a cost-effective method to match driver speed to load demands and represents a state-of-the-art opportunity to reduce operating costs and improve overall productivity. PLC Panels Programmable Logic Controller Panels are a very common component of control upgrades and automation projects in a wide variety of industries. The team at GK has developed and implemented time-tested procedures to minimize the chance of mis-wiring during the production stage. These procedures, along with detailed final QC, help to ensure all PLC panels are built correctly and meet customers’ expectations. The equipment is designed for low voltage power distribution as per IEC 60439 (Part 1 & 2), IS 8623 (Part 1 & 2). Bus duct enclosure is made from cold rolled steel sheet 1.6mm with powder coated. Bus bars copper type are made of 99.9% Pure copper ETP grade, whereas Aluminum type bus bars are made of 63401 WP grade Aluminum alloy. Small, compact and rigid construction. Inside the bus trucking, bus bars are supported at every 250mm for rigid and shockproof construction. Bus bars in enclosure are held tight and cannot easily slide even in vertical runs when used as rising mains. Un-drilled bus bars of sections can be jointed together by joint clamp using HTS bolts. System is totally reusable, easy to dismantle, reinstall and extend. Each section can be individually replaced or dismantled with disturbing other sections. Temperature rise on enclosure for all ratings is 25ºC max. for safety of operators. Design of panel facilitates adequate space for cable or bus duct termination and provides required cable support along with enough space for easy access during maintenance of the panel. All live parts are properly shrouded by means of acrylic sheet in order to ensure any accidental contact with live parts during maintenance. Neoprene rubber gaskets are provided for all doors and covers to meet dust vermin proof.

We manufacture Control & Relay Panels (CRPs)used for the protection of electrical networks ranging from 11kV to 765kV as per IS – 3231& IEC 255 standards. We have expertise in using electromechanical, static, numerical relays, Substation Automation System in our panels. We integrate relays from popular manufacturers like ALSTOM, ABB, Schneider, etc. The panels of varying sizes based on the requirement are designed. Based on the design and wiring terminations the panel are classified into simplex, duplex, twin feeder and triple feeder with degree of protection IP5X for Indoor&IP55 for Outdoor.     Substation Automation Panels for SCADA Control & Relay Panels for Transmission Line Protection. Control & Relay Panels for Transformer Protection Control & Relay Panels for Generator Protection Control & Relay Panels for Bus Bar Protection Control & Relay Panels for Feeder Protection Synchronizing Panel & Synchronizing Trolley