35-110kV Combined On-Load Tap Changer OLTC for Oil-Immersed Transformer
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Whether used in distribution systems, substations, or other power equipment, this series of on-load tap-changers provides a stable and reliable voltage regulation solution to meet the needs of diverse scenarios. Whether in industry, agriculture, or construction, it delivers superior voltage control performance for your power equipment, ensuring the normal operation of your power supply system.
Tap-changer operating conditions:
1. The installation location must be free of heavy dust, explosive gases, and corrosive gases.
2. The switch should be stored in an ambient temperature range of -25°C to 45°C.
3. The switch should be used in transformer oil, and the oil temperature should be between -25°C and 100°C.
4. When the switch is mounted on the transformer, the vertical tilt should not exceed 2%.
Key Features and Advantages:
1. High Reliability
High-quality materials and advanced manufacturing processes ensure product stability and reliability, making it less prone to failure during long-term operation.
2. Flexible Adjustment
Through tap-changing operations, the line voltage can be flexibly adjusted according to actual needs, meeting voltage regulation requirements under varying load conditions.
3. Precise Control
A sophisticated tap-changing mechanism and reliable control system ensure accurate control and stability of the tap position.
4. Safety and Reliability
Multiple safety protection devices, such as overcurrent protection and short-circuit protection, ensure safe and reliable operation.
5. High Energy Efficiency
Tap-changer operating conditions:
1. The installation location must be free of heavy dust, explosive gases, and corrosive gases.
2. The switch should be stored in an ambient temperature range of -25°C to 45°C.
3. The switch should be used in transformer oil, and the oil temperature should be between -25°C and 100°C.
4. When the switch is mounted on the transformer, the vertical tilt should not exceed 2%.
Key Features and Advantages:
1. High Reliability
High-quality materials and advanced manufacturing processes ensure product stability and reliability, making it less prone to failure during long-term operation.
2. Flexible Adjustment
Through tap-changing operations, the line voltage can be flexibly adjusted according to actual needs, meeting voltage regulation requirements under varying load conditions.
3. Precise Control
A sophisticated tap-changing mechanism and reliable control system ensure accurate control and stability of the tap position.
4. Safety and Reliability
Multiple safety protection devices, such as overcurrent protection and short-circuit protection, ensure safe and reliable operation.
5. High Energy Efficiency
Precisely adjusting the line voltage reduces energy consumption and losses, improving system efficiency.
| item | Classification feature | Ⅲ 600 | 1600 | 1800 | 11200 | 1500 | |||||
| 1 | Maximum rated passing current (A) | 600 | 600 | 800 | 1200 | 500 | |||||
| 2 | Rated frequency(Hz) | 50 or 60 | |||||||||
| 3 | Number of phases and connection mode | Three-phaseY connects to the center point | Single-phase arbitrary connection mode | ||||||||
| 4 | Maximum grading voltage(V) | 3300 | |||||||||
| 5 | Rated capacity (KVA) | 1500 | 1980 | 2640 | 3100 | 3500 | |||||
| 6 | Withstand short circuit Ability(kA) | Thermal stability(3s RMS) | 8 | 8 | 16 | 24 | 24 | ||||
| Dynamic stability | 20 | 20 | 40 | 60 | 60 | ||||||
| 7 | Number of working positions | Maximum 107 tap positions | |||||||||
| 8 | Tap off Off insulation level (KV) | Rated voltage | 35 | 66 | 110 | 150 | 220 | ||||
| Maximum operating voltage | 40.5 | 72.5 | 126 | 170 | 252 | ||||||
| Power frequency test voltage(1min) | 85 | 140 | 230 | 325 | 460 | ||||||
| Impulse test voltage(1.2/50) | 200 | 350 | 550 | 750 | 1050 | ||||||
| 9 | Tap selector | According to the insulation level is divided into 4 sizes:number B,C,D | |||||||||
| 10 | Mechanical life | No less than 800,000 times | |||||||||
| 11 | Electrical life | No less than 200,000 times | |||||||||
| 12 | Toggle Switch Oil chamber | Working pressure | 3×10⁴Pa | ||||||||
| Sealing performance | 6×10⁴Pa 24h no leakage | ||||||||||
| Overpressure protection | Rupture cap(4~5)×10⁴Pa | ||||||||||
| Protective relay | QJ4-25 Set oil speed 1.0m/s±10% | ||||||||||
| 13 | Oildischarge (L) | about 190~270 | |||||||||
| 14 | Oil charge (L) | about 125~190 | |||||||||
| 15 | Weight(Kg) | about 240~350 | |||||||||
| 16 | Equipped with electric mechanism | HED-200 | |||||||||
