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CEEG ZQSC(H)B Series Epoxy-Cast Traction Rectifier Dry-Type Transformers

200kVA to 4400kVA Power Transformers

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200kVA-4400kVA
RATED POWER
0.4kV-38.5kV
RATED VOLTAGE
Dyn11, Yyn0, Dd0
VECTOR GROUP
±2*2.5%
TAPPING RANGE

PRODUCT OVERVIEWS

Performance Features

Harmonic Filtering

Utilizes 24-pulse rectification, resulting in low harmonic distortion. Key technical parameters are optimized for balance, effectively reducing non-characteristic harmonics.

Advanced Temperature Control

Equipped with embedded PT thermistors for transformer temperature prediction and control, featuring over-temperature alarm and trip functions, audible and visual warnings, automatic fan start, fan overload protection, and computer interface connectivity.

Low Loss & Low Noise

The core adopts a 45° fully mitered step-lap joint design. The core surface is coated with a special resin, effectively reducing no-load loss, no-load current, and core noise.

High Insulation Performance

Uses Class F insulation materials, with partial discharge levels not exceeding 5 pC.

Manufacturing Process

Reliability of Insulation Technology

From initial 2D electric field simulation, 3D electric field measurement, and impulse characteristic testing, to subsequent theoretical analysis and simulation tests on main insulation, longitudinal insulation, end insulation, lead insulation, and coil insulation under lightning impulse voltages — all ensure the reliability of insulation performance.

Leakage Magnetic Field Calculation & Reduction of Stray Losses

Specialized calculation and measurement of transformer leakage magnetic fields, optimization of magnetic shielding structures, and research into the calculation and enhancement of transformer dynamic and thermal stability. These measures ensure accurate leakage inductance calculations, minimize stray losses, and improve dynamic stability.

Precise Coil Temperature Field Analysis

Using our proprietary coil temperature field calculation program, the loss distribution and cooling flow field are analyzed to accurately determine coil temperature distribution and hot-spot temperature rise, enabling targeted thermal management measures.

Reduction of Partial Discharge

Electric field intensity at all structural points is carefully analyzed during the design stage and strictly controlled to minimize partial discharge levels.

 Traction Rectifier Dry-Type Transformers (3).jpg

PARAMETERS

Model

Capacity(KVA)

Rated Voltage(KV)

Tapping Range

Connection Section

Short Circuit Impedance

Efficiency

Net Side

Valve Side

ZBSCB10

200

10
6.3

0.4
0.66
0.69

2*2.5%

Dyn11
Yyn0
Dd0

4.0

≥0.97

ZBSCB10

250

4.0

≥0.97

ZBSCB10

315

4.0

≥0.97

ZBSCB10

400

4.0

≥0.98

ZBSCB10

500

4.0

≥0.98

ZBSCB10

630

6.0

≥0.98

ZBSCB10

800

6.0

≥0.98

ZBSCB10

1000

6.0

≥0.98

ZBSCB10

1250

6.0

≥0.98

ZBSCB10

1600

6.0

≥0.98

ZBSCB10

2000

6.0

≥0.99

ZBSCB10

2500

6.0

≥0.99

ZBSCB10

500

35
36
37
38.5

6.0

≥0.98

ZBSCB10

630

6.0

≥0.98

ZBSCB10

800

6.0

≥0.98

ZBSCB10

1000

6.0

≥0.98

ZBSCB10

1250

6.0

≥0.98

ZBSCB10

1600

6.0

≥0.98

ZBSCB10

2000

6.0

≥0.99

ZBSCB10

2500

6.0

≥0.99

Model

Capacity(KVA)

Rated Voltage(KV)

Tapping Range

Connection Section

Short Circuit Impedance

Efficiency

Net Side

Valve Side

ZQSC-800/10

800

10
6.3

0.66
0.69
0.96
1.10
3.0

±2*2.5%

Dy11d0

6.0
7.0
8.0
10.5
12.5

≥0.96

ZQSC-1000/10

1000

ZQSC-1250/10

1250

ZQSC-1600/10

1600

ZQSC-1800/10

1800

ZQSC-2000/10

2000

ZQSC-2500/10

2500

ZQSC-2750/10

2750

ZQSC-3300/10

3300

ZQSC-1600/35

1600

35
33

ZQSC-2000/35

2000

ZQSC-2500/35

2500

ZQSC-2750/35

2750

ZQSC-3000/35

3000

ZQSC-3300/35

3300

ZQSC-4000/35

4000

ZQSC-4400/35

4400

INDUSTRY-TAILORED SOLUTIONS
We leverage deep industry expertise and proven experience to deliver sustainable, cutting-edge power equipment solutions across multiple sectors.
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CERTIFICATES
DUAL CNAS TESTING LABORATORIES & TÜV RHEINLAND AUTHORIZED CERTIFICATION
The company has established two CNAS laboratories and one Rhein witness laboratory. The test reports are internationally recognized by 109 global organizations, including IAF (International Accreditation Forum), PAC (Pacific Accreditation Cooperation), ILAC (International Laboratory Accreditation Cooperation), and APLAC (Asia-Pacific Laboratory Accreditation Cooperation).
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