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Description
1. General characteristics:
Voltage HV winding
6, 10 kV
Voltage of the main winding LV
0.1 kV
Additional voltage winding LV
0.1/3 kV
Limiting power
630, 1000 VA
Accuracy class rated
0.2
2. Assignment:
Three-phase voltage transformers oil NTMI type with additional windings for insulation control, designed for large-scale conversion of the electrical AC voltage to further measure and feed devices for protection and alarm circuits automation with isolated neutral. Used for lowering high voltage of 6 or 10 kV to 100, and records, including commercial and protective devices in electric power in the electrical AC. The transformer complies with the requirements of Technical condition 659 RK 0001 0033-22 and GOST 1983-2001.
Transformers are not designed to operate under conditions of shock, vibration, explosive, and reactive environment.
3. Conditions:
Height over sea level
up to 1000 m
Temperature for temperate climates
from −45°C to +40°C
Operating mode
long
1. Voltage of 6 and 10 kV:
| Model | D | B1 | H | a1 | a2 | d | Weight |
|---|---|---|---|---|---|---|---|
| NTMI-6 | ∅456 | 495 | 396 | 344 | 270 | ∅11 | 80 kg |
| NTMI-10 | ∅456 | 495 | 486 | 344 | 270 | ∅11 | 85 kg |
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