China Professional Supplier Automatic transfer switching equipment-FTQ3 to Brunei Importers

Overview:



Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

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Product illustration:
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Product Features
The automatic transfer switch ensures the switching and isolation between the primary power supply and the standby power supply.Fully automatic operation ensures that loads are transferred automatically to the secondary source in case of mains failure.

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Scope of use

-FTQ3 automatic transfer switch is suitable for the dual power supply system of AC50Hz, rated operational voltage 400V,rated operational current up to 250A.

-It is used for emergency power supply system to switch between two power supply, in order to ensure continuous and reliable electrical power to critical loads.

-It is primarily used in critical installations, for instance, fire protection system, telecommunication, coal mine and shipping,

-Industrial plants,residential buildings,emergency lighting,medical and health care, bank and securities exchange,airport, underground express way,

-Military establishment and similar loads that requires non-interrupted and reliable power supply.

Exterior and dimensions

▲ Plug in type overall and mounting dimensions(63-250A)

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Model Outline dimension(mm) Installation dimension(mm)

Length

Width

Height

Length

Width

ΦD

FTQ3-63/3P

221

283

130

203

163

6.5

FTQ3-63/4P

243

283

130

225

163

6.5

FTQ3-250/3P

258

283

130

240

163

6.5

FTQ3-250/4P

294

283

130

276

163

6.5

▲ Integrated type overall and mounting dimensions(63-250A)

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Model Outline dimension(mm) Installation dimension(mm)

Length

Width

Height

Length

Width

ΦD

FTQ3-63/3P

297

198

130

279

163

6.5

FTQ3-63/4P

319

198

130

301

163

6.5

FTQ3-250/3P

334

198

130

316

163

6.5

FTQ3-250/4P

369

198

130

351

163

6.5

▲ Seperated type overall and mounting dimensions(63-250A)

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Model Outline dimension(mm) Installation dimension(mm)

Length

Width

Height

Length

Width

ΦD

FTQ3-63/3P

221

198

130

203

163

6.5

FTQ3-63/4P

243

198

130

225

163

6.5

FTQ3-250/3P

258

198

130

240

163

6.5

FTQ3-250/4P

294

198

130

276

163

6.5

Controller

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This device is called an isolator. It’s a mechanical disconnect that opens and closes a 500,000 volt electrical transmission line at the El Dorado electrical substation near Boulder City, Nevada. Another device called a switcher is supposed to open the circuit first, then the isolator opens to physically disconnect the circuit. The switcher has had a history of one of the three phases failing to open. When this happens, the isolator opens with one phase still energized. Since the isolator isn’t designed to open hot, there’s no arc suppression, and the result is quite spectacular. Because of the history of periodic failures when the switcher has been opened, a video camera had been set up to try and record the event should it happen again. They were in luck and caught it. The arc ends when an upstream circuit breaker is opened. Full credit goes to Neil Brady who captured this amazing sight. The “wow” at the end of the video says it all.



This video explain how a circuit breaker works

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