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Showing posts from August, 2021

How Forklift Fleet Management Systems Can Bring Flexibility & Agility to Your Supply Chain

Important lesson that has risen to the top is the precarious balance between supply and demand and the potential danger of having a supply chain that is too lean. While there are benefits to a lean approach, the pandemic has shown the limitations that could occur as many supply chains were caught off-guard, lacking the flexibility and agility to quickly react to changing market demands and conditions. Many companies struggled to get their supply chains back on track, with some still confronting challenges as we entered the holiday shipping season. There are a number of strategic steps you can take to enhance your supply chain with greater flexibility and agility. When it comes to your material handling equipment needs, the best step you can take is implementing a forklift fleet and operator management system. When utilized effectively, the right system can guide and inform an approach that increases flexibility and agility while helping maintain lean principles and identifying o...

Circuit Breakers Breaking Capability - Right Calculating According to Existing Operational Model

Each circuit breaker has its own name plate, we shall find auto recloser sequence, O-C-O with time sequences, for distribution systems auto recloser may have two trials, auto recloser is leading into chock of power system but improves system reliability up to the limit that “it would not me notified by operator, but by monitoring systems, cables in Middle East wouldn’t be provided with auto-recloser, it is only for overhead lines up to MV level where most of faults are transient. We shall find “normal operating current” which is the full rating current “ for 220kV breakers 2500 AMPS” , breaking current capability, which is withstand capability for short circuit, it is 40 or 50 KA for 220KV network, and making current capability which is 2.55 times capability withstand, there were some papers talking about figures close to 3 times, mostly not applied because of higher cost, making current for 40KA is 100KA, for 50KA, it shall be 125KA.

Vacuum Circuit Breaker vs SF6 Circuit Breaker

Two kinds of circuit breakers commonly used in 10kV power distribution system In the electrical design of civil buildings, the following two circuit breakers are commonly used in 10kV systems. Vacuum interrupters are widely used in utility power transmission systems, power generation unit, and power-distribution systems for railways, arc furnace applications, and industrial plants. Sulfur hexafluoride circuit breakers protect electrical power stations and distribution systems by interrupting electric currents, when tripped by a protective relay. Instead of oil, air, or a vacuum, a sulfur hexafluoride circuit breaker uses sulfur hexafluoride (SF6) gas to cool and quench the arc on opening a circuit. Vacuum Circuit Breaker The contact of the vacuum circuit breaker, as Tavrida Electric , cuts off the circuit in the high vacuum arc extinguishing chamber, and the insulating medium and the arc extinguishing medium used are high vacuum air. There is basically no substance that can ...

Metal Clad Medium Voltage Switchgear up to 24kV

T.M. has realized and tested TMclad an Medium Voltage air-insulated switchgear for primary distribution. It’s composed by modular prefabricated unit for interior, combinable with a metallic shell, module/container TMPowerCube, and equipped with extractable circuit breaker in SF6 or vacuum type. Those devices are interchangeable inside the same unit. They are available in two different versions: TMPC / M and TMPC / E and they are pre-assembled and tested at the factory and allows the creation of frameworks in accordance with IEC 62271-200, IEC 60694 , IEC 17-1, CEI 17-6. TMPC / M: complete module including the access compartment for cables which could be arranged for withdrawable VT. TMPC / E: container without the cell-free cables access and so without the possibility of including a withdrawable VT, but thanks to its smaller size is more flexible and is useful for the creation of double-level switchboard. It’s the perfect solution for medium voltage in case of small spaces. ...

VS1-12 High Quality Indoor Fixed type VCB

In order to meet the market requirements for high quality VS1 as well as their adaptation with its switchgear, Jigao High Voltage Company develops this new generation of VS1 type indoor high voltage vacuum circuit breaker. It is three- phase AC, 50 Hz indoor power distribution equipment with the voltage of 12kV. It can be used for protecting and controlling equipments in the fields of power supply and distribution system such as substation and industrial and mining industry etc. VS1 series vacuum circuit breaker has taken into consideration of reliable interlock function which can be frequently operated at the ratedcurrent and with the capability of many times operations of breaking short-circuit current and fault current. This series of vacuum circuit breaker is an integrated unit by adopting the front and rear arrangement between operating mechanism and vacuum interrupters technology. It can be used for fixed installation unit and also can be used for independent track by equ...

Maintaining SF6 Gas Quality for GIS & Circuit Breaker

Maintaining SF6 gas quality for GIS and Circuit Breaker is a must. Any issue in insulation medium for High Voltage equipment is a time bomb. Dew point of SF6 gas should be periodically measured, if it's found below accepted limit during routine maintenance, SF6 gas recovery process should be performed in order to improve the gas quality. Сircuit breakers with vacuum champer are often confused with SF-6. They have a different arc extinguishing technology. FTHS Series of FUOOTECH Company SF6 Gas handling system is applied to the extraction, filling, backfilling, purification and recovery of sulfur hexafluoride gas in SF6 electrical equipment. The built-in filtration and adsorption system can absorb impurities, water, decomposition products and oil content in SF6 gas. The integrated design and small size are easy to move and use. The efficient maintenance - free filtration system greatly guarantees the quality of SF6 gas recovery. SF6 gas should be recycled when the SF6 elec...