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Transformers of the ОМ, ОМП type

Single-phase, oil-filled ОМ and converter ОМП transformers with natural oil cooling, connected to 50 Hz AC networks, are designed for converting electrical energy in power systems, supplying electrical equipment of railways, and other single-phase electricity consumers. The transformer complies with Ts 00212908-03:2016; О´zDst requirements.

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Description

Power range

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0.63–1.25 kVA for ОМ and 4–10 kVA for ОМП.
Nominal voltage of the primary winding HV: 6; 10 kV.
Climatic design: У1; УХЛ1; Т1.
Voltage regulation is carried out from the LV winding side.

Transformer symbols

O – Single-phase transformer.
M – Oil cooling with natural circulation of air and oil.
P – Converter.
X – Nominal power, kVA.
6(10) – Nominal voltage of the winding HV, kV.
У1 – Climatic design and placement category according to ГОСТ 15150.

Characteristic

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Main technical specifications of transformers
Transformer type	Winding connection diagram and vector group	No-load current, %	Losses, W		Short-circuit voltage, %	Overall dimensions, mm			Weight, kg
Transformer type	Winding connection diagram and vector group	No-load current, %	No-load	Short-circuit	Short-circuit voltage, %	L	B	H	Weight, kg
ОМ-0,63/10(6)	1/1-0	30	20	40	6,0	470	330	630	40
ОМ-1,25/10(6)	1/1-0	15	25	60	5,0	470	330	630	45
ОМ-2,5/10(6)	1/1-0	10	30	110	4,5	510	440	650	60
ОМП-4/10(6)	1/1-0	7,5	37	155	4,5	480	395	550	130
ОМП-6/10(6)	1/1-0	6,5	48	190	4,0	480	395	645	130
ОМП-10/10(6)	1/1-0	4	66	290	3,5	480	395	645	130