Leave this field blankKorea’s largest steelmaker chooses ABB to revamp hot rolling mill motor and drives Upgraded motors and drives will deliver improved energy efficiency, power reliability while minimizing equipment downtime Zurich, Switzerland, May 18, 2016 – ABB has won a contract to replace twin DC motors and associated drives with newer AC motor and drive technology on a hot rolling mill at POSCO’s Pohang Works in Korea. Using ABB’s large synchronous motors, AMZ, together with ACS6000 medium voltage AC drives, will help improve process efficiency, accuracy and reliability. The equipment’s precision control will even contribute to reducing energy consumption and maintenance costs while increasing the safety and productivity of the steelmaker’s Roughing Mill 2 rolling mill. ABB synchronous motors, combined with the ACS6000 multidrive, meet torque requirements over the entire operating range for the rolling mill, from zero to maximum process speed. This ensures smooth starting, acceleration and operation.

The contract also includes the replacement of three AC motors and gate-turn off thyristor (GTO) drives, used on F1 F2 F3 finishing mills, with AMZ synchronous motors and ACS6000 multidrives. In addition, ABB is supplying low voltage motors and drives, for use on the down coilers. ABB will also deliver ancillary equipment including motor control centers and local operation panels for motor cooling fans together with training, commissioning and installation supervision. Installation is scheduled for May 2017, with start-up the following month. The new motors will have lower maintenance costs than the existing DC motors, thereby improving the overall reliability of the mill. The new motor will also improve productivity and power reliability for the process. “We are committed to delivering the comprehensive solutions that will help our customers to efficiently modernize their existing operations,” said Mr. Haibo Jiang, Hub Business Unit Manager of ABB Process Industries North Asia.

“In addition, we strive to optimize project costs and delivery schedules while ensuring that we execute these projects to exceed our customers’ expectations”. ) is a leading global technology company in power and automation that enables utility, industry, and transport & infrastructure customers to improve their performance while lowering environmental impact. The ABB Group of companies operates in roughly 100 countries and employs about 135,000 people.Whether in kitchen stoves, ovens, climate-controlled cabinets, food and plate warmers or in medical devices, sterilisation units and drying ovens: ebm-papst hot-air blowers provide perfect air performance in both household and commercial applications.They render extremely quiet and reliable service. Reliability in AC technology The facts about ebm-papst hot-air blowers at a glance The best example: Hot-air blower RRM 42 for pyrolytic ovens Product search for Hot-air blowers We rely on tried-and-tested shaded-pole motors for our hot-air blowers for ovens in domestic environments.

In these cases, the hot air impeller is made of either stainless steel or die-cast aluminium, sometimes with a catalytic coating. Especially practical: Thanks to a special bearing bracket, the motor can also be installed outside the baking chamber to protect it from heat.fill home ac unit Ready to installImpellers made from stainless steel or die-cast aluminiumTemperatures of 120 °C to 500 °C for short periods (pyrolytic self-cleaning)Long service lifetypes of air handling unit Pyrolytic ovens are a real benefit to cleanliness. outside ac unit not turning offThough they relieve the housewife or househusband of messy work, the hot-air blower does not get any relief at all. It must withstand temperatures up to 500 °C over a lengthy period of 1–2 hours without any decrease in output or function.

Our RRM 42 hot-air blower has been developed for exactly this challenge, which it passes with flying colours – thanks to an exceptionally strong insulation, which provides ideal protection to the motor. The circulation blower for hot air and the drive motor that powers it are designed to withstand high ambient temperatures with no impairment of function and to guarantee a long service life. 23 circulation blowers for hot air found. qV UN f n in m³/hin Vin Hzin min-1It’s that time of year: sweltering heat accompanied by congested commuter and vacation roads. And just when you need your air conditioning the most, all you get is hot air from the dash vents. Before you blow your own thermometer, here’s a little primer on how vehicle air conditioning systems work and why they most commonly fail. Your chariot’s AC system is made up of a dozen or so components that must be in airtight condition in order for the system to work effectively. The most common reason for lack of cool air is a leak of the refrigerant gas through any number of hoses, seals, gaskets or heat exchangers (commonly referred to as condensers).

Just about all automakers cover these systems for the term of the base warranty of the vehicle (usually three years or 60,000 km, whichever comes first). The big exception is a leak caused by any type of collision or impact. If you bring your new ride into your dealership’s service department with a stone impact to the condenser, don’t expect warranty coverage. Also read: Think twice before repairing that broken air conditioner Doing a little DIY diagnosis might give you an idea what you’re in for, before you take the vehicle into the shop. With the engine running and the AC turned on to the MAX-AC setting, check under the hood to see what the AC compressor is up to. It will be a large, belt-driven unit at the front of the engine with two aluminum lines bolted to it. Take a look at the front of the compressor where the belt pulley is attached. At the face of this pulley, you will find the AC compressor clutch (an electro-magnetic unit that engages the compressor on demand).

If the clutch is spinning then stopping with a click, then spinning again, the system has most likely lost its refrigerant gas charge (usually two to four pounds) and a pressure cut-off switch is preventing the compressor from operating. If the compressor clutch never tries to engage and spin, there may be a control or electrical fault in the system. Few shops will inspect an AC system without charging some type of fee. Most leaks can only be pinpointed by injecting a fluorescent dye into the system. This requires special equipment and, in many provinces, an extra accreditation to a technician’s licence. The average fee for a basic AC inspection runs around the $100 mark. For backyard techs, many auto parts stores sell a DIY recharge and sealant kit. Be warned that these kits contain a butane derivative as their refrigerant gas. As you might suspect, this substance is flammable. When you consider that the largest portion of AC gas circulates through the condenser at the very front of the vehicle, you might be excused for wondering why you would want to put a flammable gas at the most common collision point of your car.

In addition many shops will refuse to attach their AC recharging station to a vehicle that has any leak-sealant in it. This sealant can cause expensive problems in their equipment, and no shop owner wants his or her AC equipment down for repairs in the busy season. AC repairs can get expensive with repairs bills topping the $1,000 mark on a regular basis. If you’re driving an older vehicle (seven to eight years or older), you may want to think twice before dropping some large coin on an AC repair. If the compressor has failed, many car owners may think they have no alternative but to repair the fault because the compressor drive belt may operate other necessary components such as alternators, water-pumps, and-or power steering pumps. In cases such as these, you might want to have your shop check for an AC bypass pulley. For popular makes and models, they may be available from aftermarket suppliers at a fraction of the cost of a compressor. If your vehicle’s AC system is working, but just doesn’t seem to have the chill it used to, check the condenser, usually located just in front of the engine radiator.

If you can see more grit, gravel, and dirt than tubing and fins, it may just need a little cleaning. These condensers are rather fragile; so don’t go at them with any tools or high-pressure washers. You can easily flush out most dirt by using a normal garden hose low-pressure sprayer pointed towards the front of the vehicle from the engine side of the radiator or condenser. Another home driveway repair you can handle yourself is cleaning the condensation drain. Like any AC system, vehicle units create a substantial amount of condensation. With cars, this water is collected in a tray under the evaporator coil found under the dash. The tray has a drain tube that runs through the firewall into the engine bay letting the water drip onto the ground. Most of these drains are formed so that the end has a flap that stays closed when no water is draining to prevent road dirt and dust from getting into the passenger cabin (think of the working end of a whoopee cushion tube). If this flap sticks shut, your front seat passenger will end up with a very cold pair of feet when the drain tray overflows.