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Liquid-Filled Loop Feed Pad Mounted Transformer
Maintenance of Liquid-Filled Loop Feed Pad Mounted Transformer involves periodic inspections, oil level checks (for oil-filled transformers), and testing of protective devices. Routine servicing ensures optimal performance and extends the lifespan of the transformer, minimizing downtime and disruptions in electricity 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 |
CSA Standard Grounding Provisions
According to CSA standards, grounding provisions for three phase pad mounted transformers include two vertically mounted earth spade terminals welded to the tank wall at a height of at least 150 mm at or above sill level. One terminal is placed on the high-voltage side and one on the low-voltage side. For GrdY transformers, the high-voltage side terminals shall be designated and marked H0. Both terminals shall be unpainted, made of stainless steel, with a width of not less than 40 mm and a thickness of not less than 6 mm. Each terminal is provided with two 14 mm (9/16 inches) holes, spaced 44.5 mm apart.
IEEE Standard Grounding Provisions
For transformers of 500 kVA and below, two steel pads shall be provided, each having a 1/2% inch 13 UNC tapped hole and a minimum thread depth of 11 mm (0.44 in.).
For transformers above 500 kVA, two unpainted copper-faced steel or stainless steel pads measuring 51 x 89 mm (2.0 x 3.5 in) each shall be provided. Each pad has two holes spaced 44 mm (1.75 in) on centers and tapped for a 1/2%-inch 13 UNC thread. The copper finish shall be not less than 0.5 mm (0.02 in.) thick, and the thread depth of the hole shall be not less than 13 mm (0.5 in).
The following table is the standard parameter of the Liquid-Filled Loop Feed Pad Mounted Transformer. 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 |
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.
Assembly and Packaging Area
After Assembled then Shipping by container
Our Three Phase Pad Mount Transformers can be used in variety of applications, all ranging in complexity.
Q: What Types Of Transformer Liquids Does Transpower Electrical Use?
Q: What maintenance is required for a three-phase pad mount transformer?
Inspecting for oil leaks
Checking electrical connections
Monitoring temperature and pressure
Cleaning the exterior to prevent corrosion
Conducting periodic electrical testing
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