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For a quarter of a century, the people of Cyberex have been providing innovative, imaginative, power solutions, in response to customer needs.
The Cyberex commitment to excellence has been demonstrated thousands of times on every continent - by providing the security that only comes from having truly uninterruptible power.
Our mission is to
utilize the best talent and the best technologies in the power conditioning
industry to provide our customers with optimal, cost effective solutions
for their power requirements.
DSTS
The Digital Static Transfer Switch is an intelligent switch which selects between two or more independent AC power sources to provide the best available power to the downstream electrical load. The Digital Static Transfer Switch provides cost-effective power protection for a wide range of applications, including semiconductor manufacturing, data processing and general industrial.
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DSTS 100 -
600A Type II
Seamless Transfer
System from Multiple Power Sources. |
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20A Compact
Rack-Mount
The Compact
Rack-Mount DSTS is ideal for telcom applications, ISP's, data centers
and industrial computing environments. It features Modbus communications
for remote monitoring of alarms, system status and setpoints. In
addition, Modbus enables users to select the RMDSTS preferred source
from a host computer. PDF Brochure |
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Modular 200
- 630A
The Cyberex
Modular DSTS offers complete packaging flexibility. Its logic, power
stage and 4th pole (optional) modules can be packaged into a stand-alone
module or can be integrated into switchgear or any distribution
equipment to provide the smallest total footprint for power quality
equipment. Further, it can be configured to provide easy serviceability
and change-out of assemblies. PDF
Brochure |
Digital Static Tranfer Switch FAQs
| Q: | How do you know the transfer happens in <1/4 cycle? |
| A: | It can be proven with a storage scope. |
| Q: | What is the difference between slow and fast transfer times? |
| A: | Slow sensing (typ +/- 10% voltage typ, 4 ms) is for slow deviations. It allows ¼ cycle of deviation. Fast sensing (typ + 20% voltage typ 1ms ) is for rapid deviations. It allows 1/16 cycle of deviation before transfer. |
| Q: | What does low / high phase mean in the parameter set points? |
| A: | If unit senses a phase shift (typically set around 10 degrees), it initiates a transfer. |
| Q: | What is the benefit of overload peak amps? |
| A: | An overload condition initiates an alarm, locks the DSTS on the active source, and inhibits transfer. Transfer is inhibited so that a downstream fault can not bring down both sources. The fault is isolated and the source is locked on so that it may clear the down stream fault. |
| Q: | What is transfer enable phase window? |
| A: | It is the allowable phase shift between sources for a transfer to be allowed. It is typically set at 15 degrees. |
| Q: | What do control override setpoints mean and why are they usually different. |
| A: | The control override setpoints are used by the control logic when the switch has been placed in control override. Usually, customers set the control override set points looser then the normal power condition set points. This allows an authorized user to have more latitude to force a transfer to a degraded source. |
| Q: | What is maximum operating temperature and humidity ? |
| A: | 0 - 40 degrees centigrade and non-condensing relative humidity of 95%. |
| Q: | What is the proper way to start up a DSTS ? |
| A: | Follow owners manual step by step. |
| Q: | What do I do if there is an alarm ? |
| A: | Observe and record alarm message on the LCD panel and depress the alarm silencer. Take appropriate action, depending on alarm. |
| Q: | What is the difference between the Alarm History & System Log? |
| A: | Both the Alarm History & System Log display the last 64 Events. The System Log provides data and time information while the Alarm History provides more detail on each event, such as duration. |
| Q: | How does a 3-Source DSTS work? |
| A: | The three source works in much the same way as the traditional 2 Source DSTS. The major difference is that the user has greater flexibility in determining the transfer operation of the switch if the preferred source loses power. Because there are two alternate feeds instead of one. |