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Home > Products > Instrument transformers > Трансформаторы напряжения типа ЗНОМ

Трансформаторы напряжения типа ЗНОМ

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Single-phase oil-filled voltage transformers of the ЗНОМ type with natural cooling are scaling converters designed to generate measurement signals for electric measuring instruments, protection, and signaling circuits in AC networks with isolated neutral at frequencies of 50 and 60 Hz. They can be used indoors and outdoors in temperate climate zones under the following conditions: altitude not exceeding 1000 m above sea level, continuous operation mode, ambient temperature from -45°C to +40°C.
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Description

Single-phase oil-filled voltage transformers of the ЗНОМ type with natural cooling are scaling converters designed to generate measurement signals for electric measuring instruments, protection, and signaling circuits in AC networks with isolated neutral at frequencies of 50 and 60 Hz. They can be used indoors and outdoors in temperate climate zones under the following conditions: altitude not exceeding 1000 m above sea level, continuous operation mode, ambient temperature from -45°C to +40°C.

Transformer symbols

З – Grounded.
Н – Voltage transformer.
О – Single-phase.
М – Oil-immersed.
Х – Primary winding voltage class, kV.
Х – Climatic version — У.
Х – Installation category — 1, according to ГОСТ 15150.

Characteristic

Main Technical Specifications (Table 1)
Transformer type
Maximum power rating, kVA
Power in accuracy classes, kVA
0,5
1
3
ЗНОМ-35-У1
1,0
0,15
0,25
0,6


Main Technical Specifications (Table 2)
Rated winding voltages, kV
Winding connection diagram and group
Weight, kg
HV
LV main
LV auxiliary  
 Oil weight
Total weight
27,5
0,1
0,127
1/1/1-0-0
20
80
35/√3
0,1/√3
0,1/√3
1/1/1-0-0
20
80

Dimensional drawings

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Single-phase oil-filled voltage transformers of the ЗНОМ type with natural cooling are scaling converters designed to generate measurement signals for electric measuring instruments, protection, and signaling circuits in AC networks with isolated neutral at frequencies of 50 and 60 Hz. They can be used indoors and outdoors in temperate climate zones under the following conditions: altitude not exceeding 1000 m above sea level, continuous operation mode, ambient temperature from -45°C to +40°C.
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