Name: China 3-phase Liquid Filled Pad-mounted Transformers Manufacturers Suppliers Factory - Transpower
Brand: Trans
SKU: 246584652

Transpower Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of 3-phase liquid filled pad-mounted transformers in China. Welcome to buy high quality customized products at competitive price from our factory. Contact us for quotation.

3-phase Liquid Filled Pad-mounted Transformers

Safety Features

3-phase Liquid Filled Pad-mounted Transformers are equipped with various safety features including overload protection, surge arrestors, and grounding systems. These features protect the transformer from electrical faults and ensure the safety of personnel working nearby or in contact with the equipment.

Available Supply

Power Rating	45kVA~6000kVA
Primary Voltage Ratings	up to 35kV
Secondary Voltage Ratings	up to 24.94kV
H.V. Tap Range	±2×2.5% or others
Connection Type	Delta/Wye
Winding Conductor	Copper or Aluminum
TYPE	Loop feed / Radial feed
Configuration	Live front / dead front
BIL	30-150kV
Standards	ANSI, IEEE, DOE, CSA, NEMA, UL
Application	Residential Areas, Hotels, Single Family Houses, Parks, Distribution Systems
Oil Type	Mineral Oil or Biodegradable Natural Vegetable Oil, Non PCB Fluid
Finish Color	Bell Green or as customized
Enclosure Rating	NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank

Parameters

The following table is the standard parameter of the 3-phase Liquid Filled Pad-mounted Transformers. If you need other capacity and voltage levels, please contact the TRANSpower to obtain accurate technical parameters and offers.

We provide customized Liquid-Filled Loop Feed Pad Mounted Transformer according to customers.

Below Specs Are For Reference ONLY .

Three Phase Pad Mount Transformers Sizes
kVA	Type	HV	LV	W(mm)	D(mm)	H(mm)
75	radial	25000Delta	480GrdY/277	1280	1085	1085
150	loop	14400v	600GrdY/347	1480	1250	1750
225	radial	4160Delta	347GrdY/600V	1480	1295	1750
300	loop	345000	208GrdY/120	1500	1730	1850
500	loop	1247Grdy/7200V	600Y/347	1447	1800	1750
750	radial	24940GrdY/14400	800GrdY/462	1485	1730	1750
1,000	radial	249400DELTA	480V	1730	1350	1850
1,250	loop	25000V	416V	1730	1320	1920
1,500	loop	4160GRDY/2400	600GrdY/347	1730	1910	1965
1,500	loop	34500DELTA	480GrdY/277	2220	2069	2065
1,750	loop	13800Delta	480GrdY/277	1730	2304	1900
2,000	radial	4160DELTA	415GrdY/240	1730	1950	1810
2,500	loop	25000DELTA	600GrdY/347	1730	2560	1960
2,550	loop	12470DELTA	415GrdY/240	1730	2000	2200
2600	Loop	34500DELTA	416GrdY/240	1730	1695	2290
3000	Loop	27,600DELTA	13,800DELTA	1830	2360	2000
4000	loop	27600Delta	600GrdY/347	1900	2500	2010
5000	radial	13,800DELTA	4,160GrdY/2,400	1900	2735	2500
7000	loop	27,600DELTA	13,800DELTA	2200	3030	2080
7500	loop	249400DELTA	4.16kv Wye	2300	3200	2100
10000	loop	24900GrdY/14400	600V	2800	3500	2560

Main Materials

product-800-800

Test & QC

After each unit of Liquid-Filled Loop Feed Pad Mounted Transformer manufactured, routine tests/FAT will be carried out by the requirements of ANSI/IEEE C57.12.90 and C57.12.00. The test report comply with IEEE/CSA standards, and efficiency comply with DOE 2016 Standards.

Routing Test in Our Factory
Winding Resistance Test
Insulation Resistance Test
Voltage Ratio Error Test
Short-circuit Impedance Test
No-load Loss (Wattage) Test
Load Loss (Wattage) Test
Induced Voltage Withstand Test
Separate Source Voltage Withstand Test
Pressure Integrity Test Test

We offer both online and offline test supervision options for our customers. You can also choose a third party, such as SGS, CSA, or UL to visit Transpower's factory, during the witness test, the test being executed and receive a report that fully comply with standard requirements. Alternatively, you can request online video monitoring to observe the testing process in real-time. Ensuring transparency and confidence in the testing procedures.

Our production and testing equipment have professional calibration every year.

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Painting

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Our Packages and Shippings

Assembly and Packaging Area

After Assembled then Shipping by container

Applications

Our Three Phase Pad Mount Transformers can be used in variety of applications, all ranging in complexity.

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product-805-289

Frequently Asked Questions (FAQ)

Q: What Is The Difference Between Mineral Oil (ONAN) And Biodegradable Fluid (KNAN)?

A: Mineral oil has a flash point of 147-165°C. Biodegradable insulation fluids have a higher flash point up to 350°C. Using biodegradable fluids reduce the risk of potential fire due to the transformer overheating. Utilizing biodegradable fluids extends the lifespan on the transformer due to better insulation, higher flash point, better moisture resistance, and higher maximum voltage breakdown points over mineral oils.

Q: How is a pad mount transformer installed?

A: Installation typically involves:
Selecting a suitable location with adequate space and accessibility.
Preparing a concrete pad to support the transformer's weight.
Connecting the primary and secondary conductors according to local codes.
Grounding the transformer properly.

Q: What are the advantages of pad mounted transformers?

A: Safe and Reliable: They use efficient insulation protection and heat dissipation equipment, with a well-designed cable cabinet structure ensuring safety and reliability. They have a strong overload capacity, allowing for 2 times overload for 2 hours and 1.6 times overload for 7 hours without affecting their lifespan.
Convenient Connections: The use of elbow plugs makes it easy to connect high-voltage incoming cables, allowing for plug-in and plug-out operations under power.
Strong Defense Capability: They can effectively resist instantaneous voltage peaks, protecting power equipment from damage. They also feature double fuse protection:
Insertion Fuse (BAY-o-NET): A dual-sensitive fuse (temperature and current) protecting against short-circuit faults on the secondary side.
Backup Current Limiting Protection Fuse (ELSP): Protects against faults inside the transformer and the high-voltage side.
Flexible Power Supply: They can be either terminal type or ring network type, allowing one transformer to supply power to another, enhancing power supply distance and reliability.
Energy Saving and Environmental Protection: Designed with energy efficiency and environmental protection in mind.

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