Home > Products > Traction transformers for electric locomotives > Traction Transformer — ОНДЦЭ-4350/25П-У2

Traction Transformer — ОНДЦЭ-4350/25П-У2

The traction transformer ОНДЦЭ-4350/25К-У2 is designed for freight electric locomotives ЭС5К, 2ЭС5К, 3ЭС5К, 4ЭС5К operating on 25 kV, 50 Hz AC electrified railways. The transformer converts the contact line voltage to supply voltage for traction motors, excitation windings of traction motors, and auxiliary circuits of the locomotive. Additionally, the transformer enables inversion mode (converting traction motor voltage back to contact line voltage, excitation circuits, and auxiliary needs).

Get the cost

Description

Transformer symbols

O – Single-phase
НДЦ – Forced air and oil circulation with directed oil flow
Э – For operation on electric rolling stock
4350 – Rated power, kVA
25 – Network winding nominal voltage, kV
П – Suspended type
У2 – Installation category and climatic version according to ГОСТ15150

Characteristic

Traction transformers — ОНДЦЭ-4350/25П-У2
Parameter	Value
Transformer type	ОНДЦЭ-4350/25 П-У2
Rated power of network winding, kV∙A	4345
Rated voltage of network winding, kV	25
Supply network frequency, Hz	50
Rated voltage of traction winding at terminals, V	а₁-х₁ а₂-х₂ 1260
	а₁-2, 2-х₁, а₂-4, 4-х₂ 630
	а₁-1, 1-2, а₂-3, 3-4 315
Rated power of auxiliary winding, kV∙A	205
Rated voltage of auxiliary winding at terminals, V	а₄-х₄ 401
Rated voltage of auxiliary winding at terminals, V	а₄-6 229
Rated power of excitation winding, kV∙A	112
Rated voltage of excitation winding at terminals, V	а₃-5 86
Rated voltage of excitation winding at terminals, V	5-х₃ 86
Rated power of heating winding, kV∙A	-
Rated voltage of heating winding at terminals, V	-
Total transformer losses, kW	60,5
Winding connection scheme and vector group	1/1-1-1-1-0-0-0-0
Oil weight, kg	1450
Total weight, kg	7500