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TNSJA
TNSJA Three-Phase Oil-Immersed Voltage Stabilizer
TNSJA oil-immersed voltage stabilizers are designed for demanding, high-capacity applications. Digital monitoring, comprehensive protection and natural oil/air cooling support stable operation in harsh power environments.
- Capacity
- 100–4000 kVA
- Phase
- Three phase
- Accuracy
- ±2%
- Control
- Automatic digital induction control

Product highlights
Designed for dependable regulation
100–4000 kVA platform
Digital operating-status monitoring
Oil-immersed natural oil/air cooling
≤1% waveform distortion

Catalogue data
Technical specifications
Final values are confirmed against the selected model and project configuration.
Rated capacity100–4000 kVA
PhaseThree phase
Input voltage options176–250 V / 300–450 V / 320–480 V
Rated output220/230/240 V or 380/400/415 V, customizable
Output accuracy±2%
Frequency50/60 Hz
Efficiency≥98%
CoolingOil-immersed natural oil / air cooling
ProtectionOver/under-voltage, overload, short circuit, phase loss and phase sequence
Operating environment−15 to 45 °C; ≤95% RH, non-condensing
Selection FAQ
Before requesting a quotation
When should an oil-immersed stabilizer be considered?
It is suited to high-capacity projects and demanding environments where stable regulation, cooling performance and service access are important.
Can the TNSJA output be configured for local standards?
Yes. The catalogue supports 220/230/240 V and 380/400/415 V outputs, subject to engineering confirmation.
