Posts Tagged ‘variable speed’

IE5 motor with electronic speed control for the IEC market

Wednesday, November 28th, 2018 von admin

WEG developed electronically commutated motors (WECM) for heating, ventilation and air conditioning (HVAC) applications in the IEC market at this year’s edition of SPS IPC Drives in Nuremberg (Germany). The energy-efficient permanent magnet motors with aluminium housings in frame size IEC 80 cover the power range from 0.12 W to 1.1 kW, with a choice of rated speeds: 1,500, 1,800 and 3,000 rpm. Integrated electronic speed control enables the drive units (motor and variable speed drive) to achieve market-leading efficiency levels. In addition, the low-noise, compact WECM motors fulfil all relevant IEC and HVAC standards. Easy programming and outstanding efficiency make them a cost-effective solution for pump, fan and ventilator manufacturers.

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Sulzer to be distributor of MV variable speed drives in North America

Thursday, October 18th, 2018 von admin

As part of a growing portfolio of services, Sulzer has signed an agreement with Nidec Industrial Solutions that will introduce customers to the high performance, energy efficient drives with class-leading maintenance services. Sulzer’s extensive network of service centers throughout North America will provide expert, local support from one of the world’s leading independent repair specialists of electromechanical equipment.

The new agreement will see Sulzer provide both sales and technical support for MV drives with a focus on the oil and gas industry in the United States and Canada. The company’s experienced field service teams offer expert support on site, while the local service centers are equipped with modern repair facilities to ensure any downtime is minimized. At the same time, Sulzer’s customers will have direct access to high-quality MV drives and excellent OEM support.

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Affinity Law RPM

Sunday, September 16th, 2018 von admin

In this edition of the Centrifugal Pump Minute, the specialists of Grisworld take a look at the Affinity Laws that help govern the performance of your centrifugal pumps. This video focuses on the Affinity Law that can be used to predict pump performance when changing speeds.

Converter handling simplified by new module for wireless commissioning

Tuesday, April 17th, 2018 von admin

The new Sinamics G120 Smart Access Module enables the wireless connection of mobile devices such as tablets, smartphones or laptops over WiFi to the Sinamics G120, Sinamics G120C and Sinamics G120P pump converter series, making for considerably simpler converter handling.

The module is set up in a few simple steps using a conventional web browser and any standard operating system. The web server functionality eliminates the need to download any additional software. With its intuitively structured user interface and menu guidance, the module offers outstanding user convenience.

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Efficiency comparison pumping system

Thursday, January 25th, 2018 von admin

An increasing number of pumps are now being run using speed control in order to be able to define the dynamic volume flow. The pump’s quadratic characteristic causes the motor load to decrease rapidly at lower speeds, which results in the level of efficiency decreasing significantly. Using the diagrams, it can be seen that the ideal workload for the existing asynchronous motor is not reached, due to operation at partial loads (approx. 30%) and speeds (75%).

If the pump is then equipped with a PMSM motor that has an extended efficiency range including partial load operation, the level of efficiency can be increased by approx. 12% in this example and savings of more than EUR 250 per pump per year can be achieved (depending on the number of hours‘ operation per year).

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Siemens: I/O extension module for converters

Thursday, October 26th, 2017 von admin

For the smallest converter in its portfolio, the Sinamics V20, Siemens is now offering an extension module for the capture and output of digital and analog signals. The Sinamics V20 I/O extension module is mounted on the converter using Plug&Play technology, and provides two additional input and output interfaces, each for 400 volts., increasing both the flexibility and the scope of the Sinamics V20. Using connecting ports on the front and back, the extension module can also be combined with additional accessories from the Sinamics V20 portfolio. These include for instance the BOP (Basic Operator Panel) and the BOP interface module.

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Sulzer: Repair of variable speed drives reduces costs and downtime

Thursday, April 20th, 2017 von admin

As the legislation surrounding the efficiency of electric motors continues to tighten, the volume of variable speed drives (VSDs) in service increases. Often specified by the motor manufacturer as part of the original installation – or retrofitted to improve efficiency – the drive contains both hardware and software that is designed to work with a motor in a specific application. So, what happens if the drive ceases to operate? Brian Park, Regional Sales Manager for Scotland at Sulzer, looks at the advancing technology and the maintenance processes that need to keep pace.

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KSB: New variable speed system for HVAC applications

Monday, February 6th, 2017 von admin

Etaline pump with PumpDrive Eco

This year’s ISH trade fair in Frankfurt will see KSB present a new 230 V version of its motor-mounted PumpDrive Eco variable speed system. Available for motor ratings ranging from 0.12 to 1.1 kW, this new version has been specially tailored to the requirements of HVAC applications.

PumpDrive Eco features sensorless differential pressure control which comes preset for use with Etaline L. All key parameters relating to pump and motor data are also set at the factory. This reduces the time required for pump set commissioning.

Alongside wireless Bluetooth modules for permanent installation supplied optionally, Bluetooth couplers are now also available. These can be plugged onto the service interface of PumpDrive Eco from the outside. This arrangement improves usability by also allowing communication with systems that do not have their own BT interface. The myPumpDrive app enables users to communicate with the system and make settings via smartphone.

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