Three Phase Voltage Regulator With OLTC And 10kV 11kV 1000KVA Boosting For Industrial Substations Factory Networks And Power Systems
HENTG POWER three-phase OLTC voltage regulators deliver ±30% on-load automatic regulation for 6-35kV networks, with industrial-grade IEC61000-4 anti-interference control, independent OLTC tank, and 1000-10000kVA customizable capacity. Copper windings, sealed corrugated tank, GB1094/IEC compliant, ideal for substations, industrial parks, and renewable plants.
Three phase voltage regulator OLTC
,10kV 11kV 1000KVA boosting regulator
,Distribution voltage regulator industrial substations
The HENTG POWER on-load automatic voltage regulator is a high-performance oil-immersed voltage stabilization equipment built for high-voltage power distribution networks. It adopts separated on-load tap changer (OLTC) tank and autotransformer main tank design, supporting automatic voltage adjustment within ±30% input fluctuation. This high voltage stabilizer stabilizes grid voltage continuously without power cut, protects downstream electrical assets from voltage sags and surges. It is widely deployed in power distribution lines, mining zones, industrial parks, renewable power plants, substations and remote rural power grids.
HENTG POWER provides customizable voltage regulators from 1000kVA up to 10000kVA for 6kV,10kV,11kV,35kV voltage classes. All units follow GB1094 power transformer standards and IEC anti-interference specifications, reliable for harsh outdoor and heavy industrial environments.
✅ ±30% Wide On-Load Automatic Voltage Regulation Real-time on-load tap adjustment within -30% ~ +30% voltage fluctuation range; regulation range can be fine-tuned on site according to actual grid conditions.
✅ Industrial Grade Control Chip, Strong Anti-Interference Performance Equipped with industrial-grade control processor, stable and secure operation. Complies with IEC61000-4 EMC standard, works reliably in dusty, humid, high-electromagnetic interference harsh sites.
✅ Tap Position & Operation Counter Display with Limit Lock Protection Controller shows current tap position and total tap switching cycles. High & low tap limit protection prevents tap changer jamming and mechanical failure.
✅ Independent Tank Design for OLTC & Transformer Main Body The on-load tap changer oil tank is fully isolated from the autotransformer tank. This structure delivers higher voltage regulation accuracy and reduces cross-contamination of insulating oil.
✅ Overvoltage & Undervoltage Lockout Protection Built-in overvoltage, undervoltage protection with automatic interlock function to guarantee safe OLTC switching and avoid misoperation damage.
✅ Fully Adjustable Operation Parameters On Site Field engineers can modify voltage setpoint, action delay, allowable voltage deviation, switching cycle limit and other parameters directly on the controller panel.
✅ Sealed Corrugated Oil Tank, Safe Oil Monitoring Full-sealed corrugated oil tank structure, fitted with oil temperature indicator and pressure relief valve, safe for long-term outdoor running.
✅ Compact, Low Loss, Customizable & Easy Installation Small footprint, large rated capacity, lightweight design and low no-load & load loss. Custom dimensions and parameters available to match site layout requirements for fast installation.
| Item | Specification |
|---|---|
| Rated Voltage | 6kV, 10kV, 11kV, 35kV |
| Rated Capacity | 1000kVA,1250kVA,1600kVA,2000kVA,2500kVA,3150kVA,4000kVA,5000kVA,8000kVA,10000kVA, custom capacity available |
| Rated Frequency | 50Hz / 60Hz |
| Phase | 3 Phase |
| Cooling Method | Oil-immersed Self-cooling (ONAN) |
| Connection Type | 3-phase 3-wire Star Connection |
| Tap Steps | 7 taps or 9 taps |
| Voltage Regulation Range | -30% ~ +30% (adjustable on request) |
| Item | Specification |
|---|---|
| Control Power Supply | AC/DC 100~265V |
| Rated Power | 20W |
| Frequency | 50/60Hz |
| Analog Input | 2 channels of 0~250V voltage input |
| Digital Input | 17 channels switch input |
| Digital Output | 6 channels switch output |
| Measurement Accuracy | 5% |
| EMC Anti-interference Level | IEC61000-4 compliant |
表格
| Item | Specification |
|---|---|
| Contact Resistance | <500μΩ (varies with tap stages) |
| One Full Electric Switching Time | 10s |
| Transition Resistance Switch Time | 15 ~ 24ms |
| Electrical Service Life (rated capacity) | >50,000 operations |
| Mechanical Service Life | >500,000 operations |
| Transition Mode | Single resistance or double resistance |
- Winding Resistance Measurement (GB1094.1)
- Short-Circuit Impedance & Load Loss Test (GB1094.1)
- No-Load Current & No-Load Loss Test (GB1094.1)
- Winding-to-Ground Insulation Resistance Test
- Insulation Routine Test (GB1094.3)
- Voltage Ratio Test (GB1094.1)
- Insulating Oil Test (GB1094.1)
- Full Function Test
- Equipment installation is undertaken by the buyer. HENTG POWER can arrange after-sales technicians to provide on-site installation guidance.
- Multi-point grounding is required after equipment positioning. Grounding resistance shall not exceed 4Ω. Grounding electrode depth and construction must comply with local power industry grounding codes.
- High voltage power distribution lines
- Mining & quarry power supply
- Heavy industrial manufacturing plants
- Solar / wind renewable energy power stations
- Rural & remote power grid renovation
- Substation voltage stabilization system
- Large construction site temporary high-voltage power supply
HENTG POWER is a professional manufacturer of high voltage transformers and on-load voltage regulators. We deliver customized OLTC voltage stabilizers with strict quality control, full factory testing, long service life and reliable global after-sales support. Our regulators solve grid voltage fluctuation problems and protect your expensive high-voltage equipment.
For quotation, technical drawing, custom solution and lead time inquiry, please email us: 📩 info@hentgpower.com Website: https://www.hentgpower.com
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