Explosion-proof Transhormers TYPE HA-EVS

Technical Parameters:

Frequency 50Hz
Connection group Yyn0
Insulation class H or F
transformer covering IP67
Cooling air

The transformer station is determined for installation in underground operations of mining plants by stoping, namely in in areas with high explosion hazard of coal dust and fire damp. It serves for power supply of electric devices with three-phase alternate current of frequency 50 Hz and voltage 500 – 1200 V.

The transformer station consists of the following main nodes:

power transformer chamber in version EExdI,
high voltage chamber with a switch and the isolator with entrenching knives,
low voltage chamber with a measuring and protecting system of electronic safeguards and converters.

The station is equipped with a protection against short-circuit, overload and asymmetric load of the device, furthermore with a ground protection and safeguards monitoring the protecting conductor integrity. The intrinsic-safe converters enable safe control of the transformer station through the use of circuits with intrinsic-safe level.

More info [PDF; 0,14 MB]

News

10.01.2011 | The company name change

From 1. 12. 2010 the company SE-MI service a. s. was changed to SE-MI Technology, a.s. All the other facts ( the registered office, Identification Number, Tax Identification Number, accounts number, c…

29.07.2010 | TIP 2010

Initiation of the grant project TIP 2010 - Research and development of spring-loaded wheel guiding.

01.07.2010 | Audit ISO 9001

ISO 9001 audit and Welding audit - the company passed the re-certification process successfully.

recertifikace | Èeský sváøeèský ústav s.r.o.