Product Basic Parameters (24 pulse)
Rated Capacity: 200kVA-2500kVA
Tapping Range: 2*2.5%
Vector Group: Dyn11, Yyn0, Dd0
Short Circuit Impedance:4.0/6.0
Winding Type: Multi-winding
Phase: Three-Phase
Product Features
Safe and Reliable: The rectiformer is cast with non-toxic, flame-retardant epoxy resin, ensuring high mechanical strength, excellent fire resistance, and environmental friendliness.
Easy Installation: The transformer is delivered as a complete set, ready for direct installation and efficient operation.
High Overload Capacity: With a Class H insulation rating, it can withstand temperatures up to 180°C and 200% maximum overload capacity.
Low Noise: The noise level is reduced by 3-10 decibels below the national standard.
Cost-Effective: It can be installed alongside power equipment such as rectifiers, eliminating the need for a separate power distribution room, thereby saving space and reducing initial investment.
Wide Range of Products: Our company offers a variety of specialized transformers for different fields, including rectifier transformers, electric furnace transformers, frequency conversion transformers, and 24-pulse or 36-pulse selections.
Customized Solutions: We provide flexible designs and quick responses to meet specific customer requirements.
Authoritative Certification: Our products have received certification from the National Quality Supervision and Testing Center for Electric Equipment.
Technique Advantage
1. Theoretical Analysis and Simulated Testing Ensures Insulation Reliability
From initial 2D electric field simulations and 3D electric field measurements to impact characteristic measurements, we conduct theoretical analysis and simulated tests on the main insulation, longitudinal insulation, end insulation, lead insulation, and the ability of the coil to withstand lightning impulse voltage throughout the transformer’s lifecycle.
2. Calculating and Reducing Stray Losses from Leakage Magnetic Fields
We calculate and measure the transformer's leakage magnetic fields, study the shielding structures for these fields, and analyze the transformer’s dynamic and thermal stability. This research helps enhance the transformer’s dynamic and thermal stability.
3. Precise Analysis of Coil Temperature Fields
We collaborate with renowned domestic universities to develop a program to calculate coil temperature fields. By analyzing the distribution of coil losses (including resistive losses, eddy current losses in different directions, and circulating current losses between parallel conductors) and the cooling conditions of the velocity field, we accurately determine the coils' temperature distribution and hotspot temperature rise. This enables us to take measures to effectively control the hotspot temperature rise, which impacts the transformer’s lifespan.
4. Reduced Partial Discharge Charge Levels
Numerical analysis of the electric field intensity in various transformer parts is conducted during the design phase. We also strictly control manufacturing quality, processing operations, and technical rationality to manage and reduce partial discharge levels effectively.
Rectifier Transformer for Hydrogen Power Supply
1. Multi-pulse output can meet the needs of secondary side equipment for stable DC power supply
2. The transformer adopts wide linear flux voltage regulation technology to ensure that the linear adjustment of the secondary output voltage is achieved when the input voltage remains unchanged, meeting the needs of the equipment for voltage change
3. The input winding adopts a completely symmetrical parallel structure with load (or no excitation) switch synchronous adjustment mode to avoid the generation of circulating current. The two sets of output windings use different connection groups (d\y), which can eliminate the influence of high-order harmonics and multiple power grids, achieve consistent phase angle differences, and stabilize the DC waveform after multi-pulse rectification.
Excitation rectifier transformer
Rated capacity 315~3000x3kVA, voltage levels are 10, 13.8, 15.75, 20, 22kv, usually single-phase structure, high-voltage off-phase closed busbar incoming line, high-voltage coils with shielding. Suitable for static excitation systems of hydropower plants and thermal power plants.
General rectifier transformer
Rated capacity 315~4000Kva, voltage levels are 10, 35kV. Suitable for rectifier systems of general industrial and mining enterprises.
H-bridge rectifier transformer
Rated capacity 315~2500kVA, voltage levels are 3, 6kV, each unit has 3~9 windings per phase, two units can be combined and connected into H-bridge rectifier by shifting the phase. Suitable for motor AC-AC variable frequency power supply system.
Product Parameter
ZBSCB10 24-Pulse Rectifier Dry-Type Transformer | ||||||||
Capacity (KVA) | Rated Voltage (KV) | Tapping Range | Vector Group | Short Circuit Impedance | Efficiency | Weight(kg) | Gauge（mm) | |
Net Side | Valve Side | |||||||
200 | 10 6.3 | 0.4 0.66 0.69 | 2*2.5% | Dyn11 Yyn0 Dd0 | 4.0 | ≥0.97 | 1250 | 550 x 550 |
250 | 4.0 | ≥0.97 | 1430 | 550 x 550 | ||||
315 | 4.0 | ≥0.97 | 1570 | 660 x 660 | ||||
400 | 4.0 | ≥0.98 | 1750 | 660 x 660 | ||||
500 | 4.0 | ≥0.98 | 1970 | 820 x 820 | ||||
630 | 6.0 | ≥0.98 | 2250 | 820 x 820 | ||||
800 | 6.0 | ≥0.98 | 2590 | 820 x 820 | ||||
1000 | 6.0 | ≥0.98 | 2940 | 820 x 820 | ||||
1250 | 6.0 | ≥0.98 | 3420 | 820 x 820 | ||||
1600 | 6.0 | ≥0.98 | 3830 | 820 x 820 | ||||
2000 | 6.0 | ≥0.99 | 4500 | 820 x 820 | ||||
2500 | 6.0 | ≥0.99 | 5350 | 820 x 820 | ||||
500 | 35 36 37 38.5 | 6.0 | ≥0.98 | 2680 | 820 x 820 | |||
630 | 6.0 | ≥0.98 | 3300 | 820 x 820 | ||||
800 | 6.0 | ≥0.98 | 3810 | 820 x 820 | ||||
1000 | 6.0 | ≥0.98 | 4650 | 1070 x 1070 | ||||
1250 | 6.0 | ≥0.98 | 5250 | 1070 x 1070 | ||||
1600 | 6.0 | ≥0.98 | 5750 | 1070 x 1070 | ||||
2000 | 6.0 | ≥0.99 | 6380 | 1070 x 1070 | ||||
2500 | 6.0 | ≥0.99 | 7390 | 1070 x 1070 | ||||
