ASCO AUTOMATIC TRANSFER SWITCHES-ATS

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ASCO POWER Technologies (ASCO) is a US company started in 1888 focusing on Automatic Transfer switches. Presently ASCO products are available in more than 100 countries and has more than 70% market share worldwide. ASCO was owned by M/s EMERSON Network Power earlier & is with M/s VERTIV of America since 2016.

 

At the heart of every successful critical power system is a reliable and rugged transfer switch. Using technologies refined by more than 100 years of experience, ASCO low and medium voltage switches reliably transfer mission-critical loads between normal and emergency power sources decade after decade. ASCO broad range of transfer switches brings industry-leading reliability and capabilities to facilities large and small.

As society becomes increasingly dependent on the quality and reliability of electrical power, interruption or complete loss of power can result in serious hardships, significant financial losses, or dangers to life and safety. ASCO provides industry-leading products and solutions for reliably transferring critical loads to emergency power sources. Using ASCO products can mean the difference between a minor inconvenience and a major catastrophe. You’ll find ASCO Power Transfer Switches wherever there is a critical load to protect. ASCO offers a variety of product solutions to meet virtually every requirement, including distributed generation applications.

ASCO 230 series ATS

The automatic transfer switch with AMF Controller consists of an intelligent controllerand Modular load break switch which gives ON/OFF command to Generator automatically & also transfers the load to the emergency power source when it detects under/over voltage, under/over frequency, or phase failure.The switch have three possible operating positions (source one - center off –source two). The two sources can be isolated in the center off position. A position locking mechanism should also be provided. Phase loss sensing need to be provided .

ATS offered meets & conforms following Standards as per IEC

• EN 60947-6-1 / IEC60947-6-1: transfer switching
• EN60947 -3 / IEC60947-3: Suitable for Isolation
• EN55022: Radiated and Conducted Emission,Class A
• EN61000-3-2: Harmonic Current Emission, Class A
• EN61000-3-3: Limits of Voltage fluctuation and Flicker
• EN 61000-4-5: Immunity to Surge
• EN 61000-4-4: Immunity to Electrical Fast Transient:
• EN61000-4-2: Immunity to Electrostatic Discharge
• EN61000-4-3: Immunity to Radiated Electric Fields
• EN 61000-4-6: Immunity to Continuous Conducted Interference

Asco 7000 series( Available from 32A to 4000A )

ASCO 7000 Series is available in open, delayed, closed and soft load transition configurations. Additionally, switched or overlapping neutral options provide for more accurate operation of ground fault protection systems and reduction of voltage transients from unbalanced load switching.

ASCO Power Transfer Switches are the standard of the industry. High speed transfer of loads between alternate sources of power, regardless of ampacity, is achieved using a reliable, field-proven solenoid operating mechanism. When combined with a programmable microprocessor controller with keypad and LCD display, they offer the most advanced method of transferring all types of loads, such as motors, electronic drives, UPS’s and microprocessor-based systems. 7000 Series Power Transfer Switches are available open or enclosed, in ampacities ranging from 30 through 4000 amps with the largest selection of optional accessories offered anywhere. All switching configurations are available with an integrally mounted bypass-isolation switch. Configurations are also available for service entrance applications.

TRANSFERRING POWER WITHOUT INTERRUPTION

With the ASCO Closed Transition Transfer Switch. It offers a reliable solution to the problem of power interruption on hot-to-hot transfer.

A closed transition transfer switch (CTTS) operates in a make-before-break mode, providing both sources are acceptable and in synchronism. If the connected source is unacceptable, power transfer will occur in conventional non-overlap mode, or open transition transfer. For CTTS, most utilities accept 100 milliseconds (msec) as the maximum overlap time during transfer.

Typically, the ASCO CTTS doesn’t exceed 50 to 80 msec. Prior to transfer in either direction, both sources are monitored by the CTTS, and, if the voltage difference is less than five percent and the frequency variation less than 0.2 Hz, the relative phase angle is monitored. When the phase angle difference approaches within five electrical degrees, the switch operates, a momentary overlap occurs, and the load transfers with virtually zero interruption. The presence of critical loads generally dictates the use of an isochronous governor, because the engine generator output frequency should remain virtually constant from no load to full load. Closed transition transfer not only makes testing under load less objectionable, it provides many other benefits. Because there is no load interruption, there is no inrush current when transferring large motors.

The inrush problem associated with transferring transformers also is eliminated with CTTS. In addition, if a critical computer load is served by a static uninterruptible power supply (UPS) system, the UPS batteries never cycle when a synchronized transfer occurs. By eliminating —even a momentary—discharge of the battery bank, the life of the battery is extended. Batteries are known to be a major maintenance expense in a UPS system.

Another growing application of a CTTS is in Demand Side Management (DSM) programs. Many electric utilities offer incentives if a user reduces coincident peak demand when requested by the utility. Advance notification is given to the DSM customer when peak shaving or peak demand reduction is needed. Because a CTTS momentarily parallels the onsite generator with the utility during retransfer to normal power, or during transfer and retransfer during generator testing and load shedding operations, utility approval is required for each intended installation. ASCO personnel are available to assist the customer during this approval process.

Best Suitable for Protecting:

• Healthcare Facilities
• Enterprise / Colocation / Cloud Data Centers
• Commercial Buildings / Industrial Buildings
• Telecom Mobile / Central Switching Centers
• Process Manufacturing
• Distributed Energy Resources (Micro grid) / Load Management
• Water Treatment Facilities

CLIENTS

• ITC Limited
• DLF
• Airtel
• Infosys
• Big Bazaar
• Delhi Metro
• Google
• HDFC Bank
• ICICI Bank
• Bosh
• HP
• MRF
• Vodafone

Web : For more details Log on to https://www.ascopower.com/en-us/