Box Style Pad Mounted Transformer
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Box Style Pad Mounted Transformer

Our company’s Pad-Mounted Combined Transformer is a domestically produced American-style box-type substation, which serves as a crucial power supply unit in the cable distribution network. This integrated pre-installed product combines high-voltage control, protection, substation, and distribution equipment into one complete system, making it widely applicable to urban and rural distribution networks.
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Product Introduction

Zhejiang Tianrun Electric Co., Ltd. is one of the leading manufacturers and suppliers of box style pad mounted transformer in China. We are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk advanced box style pad mounted transformer from our factory. Also, quotation is available.

 

Product Overview

 

Our company's Pad-Mounted Combined Transformer is a domestically produced American-style box-type substation, which serves as a crucial power supply unit in the cable distribution network. This integrated pre-installed product combines high-voltage control, protection, substation, and distribution equipment into one complete system, making it widely applicable to urban and rural distribution networks. It is designed to provide safe, reliable, and efficient power distribution solutions for various scenarios.

ZGS13-1204-630KVA three phase pad mounted transformer American Style box combination transformer03

 

Rated Capacity (kVA)

Rated High Voltage (kV)

Voltage Low Voltage (kV)

Tapping Range (%)

Vector Group Symbol

No-load Current

Loss (W)

Resistance Voltage (%)

Noise (dB)

Temperature Rise

(%)

No-load

Load

S9

S10/S11

S9

S10

S11

S9 S10/S11

30

6



6.3


10

0.4






(0.69)

±5






(±2×2.5)

Yyn0






Dyn11

2.2

2.0

 

130

 

600

4

5.5

Top oil
temperature


60°
coil
65°

50

2.0

1.8

 

170

 

870

63

1.9

1.5

 

200

 

1040

80

1.7

1.2

 

250

 

1250

100

1.6

1.1

 

290

 

1500

125

1.5

1.0

340

270

1800

160

1.4

1.0

400

310

2200

200

1.4

0.8

480

375

2600

250

1.2

0.8

560

455

400

3050

3000

315

1.1

0.7

670

540

475

3650

3600

400

1.0

0.7

800

650

570

4300

4200

500

1.0

0.6

960

775

680

5100

5000

630

0.9

0.6

1200

920

800

6200

6000

4.5

800

0.8

0.6

1400

1120

980

7500

7400

1000

0.7

0.5

1700

1320

1150

10300

9860

1250

0.6

0.5

1950

1560

1360

12800

12000

1600

0.6

0.5

2400

1880

1640

14500

14000

 

Product Structural Features

Compact & Space-Saving

With a compact structure and small volume, it only occupies about 1/3 to 1/5 of the space of domestic European-style box-type transformers of the same capacity, greatly reducing the floor area required for installation.

Fully Sealed & Insulated

Adopts a fully sealed and fully insulated structure, eliminating the need for insulation distance and reliably ensuring personal safety during operation and maintenance.

Flexible High-Voltage Connections

High-voltage connections are compatible with both ring network and terminal applications, featuring flexible power supply and high operational reliability.

Excellent Transformer Performance

Boasts low loss, low noise, and low temperature rise; meanwhile, it has strong overload capacity, short-circuit resistance, and impact resistance, ensuring stable long-term operation.

Customizable Low-Voltage Feeders

Meets various low-voltage feeder requirements, which can be selected according to standard plans or customized according to user-specific designs.

Versatile Cable Heads

Two types of cable heads are available: 200A elbow plug and 600A "T" type fixed cable connector, both of which can be equipped with fully insulated zinc oxide surge arresters. The 200A cable head supports live hot-plugging and can also function as an isolating switch.

 

Structural Design Features

 

  • Integrated Design: The high-voltage load switch and high-voltage fuse are integrated in transformer oil. It offers both integrated and split structure forms with the transformer body, allowing flexible selection based on actual project needs and on-site conditions.
  • Tank Design: The tank adopts a fully sealed structure, which effectively protects internal components from external environmental impacts. It is also equipped with essential monitoring and protection components, including an oil thermometer, oil level gauge, pressure gauge, pressure relief valve, and oil drain valve. These components enable comprehensive real-time monitoring of the transformer's operating status, ensuring stable and safe equipment operation.

 

Innovative & Distinctive Design

 

  • Plug-in Dry-Type Fuse: Specifically developed to better adapt to the actual needs of the Chinese power grid. When the fuse melts, it does not affect the performance of the transformer oil, ensuring the normal operation of the equipment and facilitating quick and convenient maintenance.
  • Diverse Housing Forms: For the ZGS□-12 product model, based on the complexity of low-voltage feeder requirements, it is divided into three housing forms: standard type, enhanced type, and comprehensive type. This design provides greater flexibility for users and design units in product selection, helping to achieve better cost-effectiveness while meeting specific project requirements.

 

Diversity of Power Supply Modes

 

The product supports three power supply modes: ring network, terminal, and dual power source. This multi-mode design can fully meet the power supply demands of various application scenarios, significantly enhancing the product's applicability and flexibility in different distribution network configurations.

 

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Dimensions

Standard Type

Capacity kVA

A

B

C

D

E

F

H

100-250

1900

1650

1250

650/800

600

1410/1560

1450

315

1900

1650

1350

650/800

650

1460/1610

1450

400-500

1900

1750

1450

650/800

650

1490/1640

1550

630

1900

1750

1550

650/800

700

1580/1730

1550

800

1900

1850

1550

650/800

700

1640/1790

1650

1000

1900

1850

1650

650/800

700

1640/1790

1650

 

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Enhanced Type Dimensions

Enhanced Type

Capacity kVA

A

B

C

D

E

F

H

100-250

2400

1650

1250

800

600

1560

1450

315

2400

1650

1350

800

650

1610

1450

400-500

2400

1750

1450

800

650

1640

1550

630

2400

1750

1550

800

700

1730

1550

800

2400

1850

1550

800

700

1790

1650

1000

2400

1850

1650

800

700

1790

1650

 

 

Operating Environment Conditions

 

  • Ambient Temperature: Maximum +40℃, minimum -30℃
  • Altitude: ≤ 1000m
  • Wind Speed: Equivalent to 34m/s (not exceeding 700Pa)
  • Humidity: Daily average relative humidity ≤ 95%; monthly average relative humidity ≤ 95%
  • Seismic Protection: Horizontal acceleration ≤ 0.4m/s², vertical acceleration ≤ 0.15m/s²
  • Installation Site Inclination: Not greater than 3°
  • Installation Environment: The surrounding air shall be free from significant pollution by corrosive or flammable gases, and the installation site shall be free from severe vibration.

If the product is to be used under conditions exceeding the above specifications, specific requirements can be negotiated with our company for customized solutions.

 

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