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YBD 1000 KVA 12 KV 400 V Power Transmission Box-Type Underground Transformer Unit Substation

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The YBD Series Underground Combined Substation is developed by our company to meet urban construction and environmental protection needs. This integrated device combines high-voltage switchgear, underground transformers, and low-voltage distribution cabinets into a compact, efficient power distribution unit, ideal for use in urban public spaces, streets, parks, residential areas, and scenic districts. It is suitable for power reception and distribution in ring main systems, dual power supply systems, or radial terminal distribution systems.
  • YBD-12/0.4-1000

  • SHENGTE

Availability:
Quantity:

Features:

1. It is developed and designed on the basis of the combined substation, with compact structure, small floor area, beautiful appearance, low noise, energy saving and environmental protection, safe and reliable operation, convenient maintenance.

2. It adopts advanced technology to improve and optimize functions, equipping with automatic temperature control, automatic emergency drainage, automatic humidity control and remote monitoring system, with reliable performance.

3. In the power distribution system, it can be used for ring network power distribution system, as well as dual power supply or radial terminal power distribution system.


Our Advantages:

· Integrated Design: Combines high-voltage switchgear, underground transformer, and low-voltage distribution cabinet into one compact and efficient power distribution device.

· Modular Structure: Divided into above-ground (high-voltage switchgear, low-voltage distribution cabinets, and outer casing) and underground (underground transformer and its enclosure) components.

· High-Voltage Unit: Uses SF6 insulated ring main units or load switch cabinets, compact and low-maintenance.

· Low-Voltage Unit: Features GGD-type cabinets, configurable with metering, measurement, and automatic capacitance compensation devices as needed.

· Transformer Unit: Utilizes a low-temperature-rise, low-loss buried transformer with fully sealed, fully insulated connections, reliable even when submerged.

· Casing Structure: Made of aluminum-zinc plated sheets with a wood cover and a metallic glazed tile roof; double-layer top cover provides good ventilation and prevents heat radiation.

· Aesthetic and Environmental: Attractive design suitable for modern urban landscapes; underground installation saves space and minimizes environmental impact.

· Safety and Reliability: Equipped with fireproof, waterproof, and explosion-proof features, along with an advanced monitoring system for safe operation.

YBD-1

YBD-2YBD StructureYBD-3Model Description YBD

Main Part

Item

Unit

Parameter

High

Voltage

Unit

Rated Voltage

KV

12

Rated Frequency

Hz

50

Rated Current Of Main Bus

A

630

1mm Power Frequcency Withstand Volage Carth And Inter-Phase / Isolation Clearance

KV

42 / 48

Lightning Impulse To Earth And Phase To Phase Withstand / Isolation Clearance

KV

75 / 85

Rated Short-Time Withstand Current

KA/S

20 / 2

Rated Peak Withstand Current

KA

50

Rated Short-Time Making Current

KA

50

Rated Transfer Current

A

1400

Fuse Drop Out Current

KA

31.5 / 40

Low

Voltage

Unit

Rated Voltage

V

400

Main Circuit Rated Current

A

100 ~ 1200

Rated Limit Short-Circuit Breaking Capacity

KA

80

Rated Running Short-Circuit Breaking Capacity

KA

50 (65)

Rated Short-Time Withstand Current

KA/S

50 (65)

Branch Current, Compensating Capacity

--

As Per The Users' Requirements

Transformer

Unit

Rated Power

KVA

30 ~ 630

Impedance Votage

%

4 / 4.5

Tapping Range

%

±2 × 2.5% / ±5%

Vector Group

--

Yyn0 / Dyn11

Drawing YBD


Production Process


Production Process S11


Company Profile



Guangdong Shengte Electric Co., Ltd., based in Foshan, China, is a distinguished transformer manufacturer known for reliability and exceptional after-sales service. With over a decade of experience, we've provided high-quality, cost-efficient transformers for governmental and private sector projects worldwide, earning a reputation for excellence.

Our commitment to quality is demonstrated by meeting the rigorous standards of our German Power Utility clients, ensuring only the highest quality solutions.

Spanning 10,000 square meters, our Foshan facility is equipped with cutting-edge production and testing equipment, enabling us to offer customized solutions, including OEM and ODM services. Our product range includes oil-immersed transformers, resin cast dry-type transformers, pad mounted transformers, prefabricated substations, and more.

Certified by ILAC-MRA and CNAS, our IEC certificate underscores our dedication to international quality standards. Additionally, we hold ISO9001, CE, and Innovative Product Certifications, with active pursuit of the UL certificate to further demonstrate our commitment to global compliance.

Company

Factory


Certifications


Certification


Project Cases


Case

Customer


Exhibition


Exhibition


Packaging & Shipping


Packing & Delivery


FAQ


Q1: Are you a manufacturer or trading company?

A1: Our factory covers an area of over 10000m2, we can produce 2000 more transformers each year.


Q2: Do you have the relevant certifications and test reports?

A2: Yes, we have ISO9001 and CE certification, and can provide the test reports according to IEC standard.


Q3: How long is the warranty period?

A3: It is 12 months.


Q4: Would you accept using customer's logo?

A4: Yes, we can provide OEM and ODM service.


Q5: What's the MOQ?

A5: It is 1 set.


Q6: What are the payment methods and terms?

A6: We accept T/T, Western Union, PayPal, etc. 30% advance payment before production, 70% balance payment before delivery.


Q7: How long is the delivery time?

A7: Generally it is 20-30 days, it depends on the order quantity.


Q8: What is the standard of package?

A8: Wooden case or special package according to customer's requirement.


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Guangdong Shengte Electric Co., Ltd. is located in Danzao Town, Nanhai District, Foshan City.

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