Oil-Cooled Power Transformers, Type OL
Transformer, Type OL
Transformers, type OL, are used to transmit power to automatic blocking circuits from overhead lines and longitudinal power lines of railroad power supply systems. The OL-type transformer is recommended for application at railway sections as a step-down transformer.
OL-type transformer design:
The transformer is designed as single-phase and double-winding; it is a monolithic unit with built-in windings and magnetic core.
The magnetic core is shell-type, E-shaped, split; is wound from cold-rolled electrical steel. Windings are arranged concentrically.
The support surface of the transformer has four grommets with thread M10 to secure the transformer.
Transformers are designed for temperate/cold and tropical climates; placement category 1 in compliance with GOST 15150; they are designed for outdoor operation in the following conditions:
- operating ambient temperature: from minus 60°С to plus 50°С for temperate/cold climates and from minus 10°С to plus 55°С for tropical climates.
Leakage distance III in compliance with GOST 9920-89.
Specifications for OL-type transformer:
|
Parameter |
Standards by types |
|||
|
|
OL-0.63/6 |
OL-0.63/10 |
OL-1.25/6 |
OL-1.25/10 |
|
Voltage rating, kV |
6 |
10 |
6 |
10 |
|
Maximum operating voltage, kV |
7.2 |
12 |
7,2 |
12 |
|
Rated primary voltage, kV |
6.3 |
10.,5 |
6.3 |
10.5 |
|
Rated secondary tapping voltage, V: |
218 |
218 |
218 |
218 |
|
Rated frequency, Hz |
50 or 60 |
50 or 60 |
50 or 60 |
50 or 60 |
|
Rated capacity, VA |
630 |
630 |
1250 |
1250 |
|
No-load current, %, max |
70 |
70 |
35 |
35 |
|
No-load loss, W, max |
50 |
50 |
50 |
50 |
|
Short-circuit voltage, % |
4.5 |
4.5 |
4.5 |
4.5 |
|
Short-circuit losses, W, max |
55 |
55 |
55 |
55 |
|
Proof voltage, kV: |
|
|
|
|
|
Diagram and coil connection group |
1/1 - 0 |
1/1 - 0 |
1/1 - 0 |
1/1 - 0 |
|
Weight, kg |
40 |
42 |
40 |
42 |
To make an order, please, fill in the DATA SHEET for oil-cooled power transformers, type OL
Other transformers:
Oil-Cooled Power Transformers, Type TM, TMF, TMB, TMEOil-Cooled Power Transformers, Type TMG, TMGF
Oil-Cooled Power Transformers, Type TMZ
Oil-Cooled Power Transformers, Type OM
Oil-Cooled Power Transformers, Type OMP
Oil-Cooled Power Transformers, Type NOM
Oil-Cooled Power Transformers, Type TMPN (TMPNG)
Dry-type Power Transformers, Type TSZ
Three-Phase Railroad Transformer TMZH
