Single-phase transformers for mining industry


Transformers are designed for supply of electrical devices in mining industry
In standard design, the transformers are adjusted to fastening by means of a base welded into core or screwed angles.
If agreed, the transformers may have more tappings. The windings terminals may be placed on one side only, or on both sides of a transformer. Upon request, the transformers may be assembled in enclosures with the protection degree of IP 23, IP 44 and IP 54 with the possibility to insert supply cables through glands.

Technical data

Design Single-phase transformers for mining industry ET1oG, ET1SG are produced in accordance with requirements of relevant transformer standards and
PN-G-50003 or BN-82/0466-03 (Polish branch standars)
Insulation class

B(130oC) - standard up to 1,6 kVA; F(155oC) - standard above1,6 kVA

Climatic class
/ Environmental class

C2/E1 - mining design

Ambient temperature 45oC
Protection degree IP 00
Protection class I
Frequency 50/60 Hz
Primary voltage up to 1000 V
Secondary voltage up to 1000 V
Terminals screw terminal blocks, cable lugs or
copper bus bars
Fastening by means of base plate or angles