500-7500kVA Three-phase Pad-mounted Transformer

Three-phase pad-mounted transformers is oil-filled,three-phase,commercial pad mounteddistribution transformer specifically designed for outdoor installation on a concrete pad and provideunderground power distribution to commercial,industrial and institutional loads.It is availablein both livefront and dead front construction,for radial feed and loop feed applications,with or without taps,thetransformer uses aluminum or copper winding and is optimized to maximize efficiency and footprint.It hasmany advantages:such as high voltage,no drifting of neutral point,low loss,small volume,cost-effective,safety and environment protection and etc.

Standard Features

·50 Hzor 60 Hz operation.

·65℃ average winding rise.

·Radial&loop feed arrangements.

·Dead and live front type of HVterminals.

·Bolted-on cabinet with removable sill having the following depths:

-19″deep for 300kVA through 750 kVA

-22″deep for 1000kVA through 1500kVA

-24″deep for 2000 kVA through 3750kVA

-30″deep for 5000 Kva through 7500kVA

·Tank:Mild steel

·Steel HV/LV compartment barrier

·Padlocking facilitywith penta-head bolt on the HVand LV,Three-point latching mechanism.

·HVand LV compartment doors-hinged and lift-off type with 120°holding bars

·Stainless steel door hinges

·Removable sillfor easy installation

·Three-point latching door for security

·Permanent Nameplate per ANSI requirement.

·ANSI tank ground pads.

·One-inch drain valve and sampler.

·Self-actuating pressure relief valve.

·Four(4)lifting lugs

·Welded cover with hand hole

·Oil fll plug

·Removable LV neutral ground strap;as required

·Durable,corrosion-resistance powder coat paint finished Munsell Green 7GY3.29/1.5

·Designed,manufactured and tested in accordance with the latest ANSI and IEEE standards.

Hangzhou Giantway Import & Export Co., Ltd.
DATA SHEET OF PAD-MOUNTED TRANSFORMER （Copy right: HZGW）
Project Name
S/N	Description			Unit
1	Rated capacity			kVA	1000	1500	2000	2500	3000
2	HV/Primary			V	13800V Delta	13800V Delta	13800V Delta	13800V Delta	13800V Delta
3	LV/Secondary			V	400V – Wye	400V – Wye	400V – Wye	400V – Wye	400V – Wye
4	Transformer Feed Type				Loop	Loop	Loop	Loop	Loop
5	Tap changer				NO-Load,5step,±2*2.5%，	NO-Load,5step,±2*2.5%，	NO-Load,5step,±2*2.5%，	NO-Load,5step,±2*2.5%，	NO-Load,5step,±2*2.5%，
6	vector group				Delta-Wye	Delta-Wye	Delta-Wye	Delta-Wye	Delta-Wye
7	Material of coil				Copper	Copper	Copper	Copper	Copper
8	Material of core				Silicon steel	Silicon steel	Silicon steel	Silicon steel	Silicon steel
9	No. of Phases				3	3	3	3	3
10	Frequency			（Hz）	60	60	60	60	60
11	Insulation Fluid				Mineral Oil	Mineral Oil	Mineral Oil	Mineral Oil	Mineral Oil
12	Insulation Class				A	A	A	A	A
13	Rated impedance			%	5.75	5.75	5.75	5.75	5.75
14	No-load loss at 20℃			W	996	1532	1782	2438	5385
16	full load loss at 85℃，100%load			W	7832	9880	12987	14356	28450
17	Total Losses at 85°C				8828	11412	14769	16794	33835
18	Efficiency at 100% load			%	99.12	99.24	99.27	99.33	98.88
	Standard(s)			IEEE C57/DOE2016
19	Temperature rise
	Oil surface temperature rise			K	60	60	60	60	60
	Average winding temperature rise			K	65	65	65	65	65
	Hotest point  temperature rise			K	/	/	/	/	/
20	Basic lightning impulse insulation level(BIL)
	HV			kV	95	95	95	95	95
	LV			kV
23	Noise level			dBA	62	62	62	62	62
24	Ambient temperature			℃	Maximum Ambient Temp.  40℃	Maximum Ambient Temp.  40℃	Maximum Ambient Temp.  40℃	Maximum Ambient Temp.  40℃	Maximum Ambient Temp.  40℃
25	Method of cooling				ONAN	ONAN	ONAN	ONAN	ONAN
26	Enclosure Rating:				NEMA 3R Weatherproof,Munsell™ 7.0 GY 3.29/1.5 Bell green	NEMA 3R Weatherproof,Munsell™ 7.0 GY 3.29/1.5 Bell green	NEMA 3R Weatherproof,Munsell™ 7.0 GY 3.29/1.5 Bell green	NEMA 3R Weatherproof,Munsell™ 7.0 GY 3.29/1.5 Bell green	NEMA 3R Weatherproof,Munsell™ 7.0 GY 3.29/1.5 Bell green
27	Housing Type				Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation,Weatherproof and UV Resistant Epoxy Coating and Undercoating	Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation,Weatherproof and UV Resistant Epoxy Coating and Undercoating	Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation,Weatherproof and UV Resistant Epoxy Coating and Undercoating	Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation,Weatherproof and UV Resistant Epoxy Coating and Undercoating	Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation,Weatherproof and UV Resistant Epoxy Coating and Undercoating
28	Others requirements				/	/	/	/	/
29	nameplate				YES	YES	YES	YES	YES
30	package				Export wooden crate	Export wooden crate	Export wooden crate	Export wooden crate	Export wooden crate
31	dimension （width*depth*heigh）			mm
32	weight			KG
33	Altitude：			m	＜1000	＜1000	＜1000	＜1000	＜1000
34	manual				YES	YES	YES	YES	YES
	language				English	English	English	English	English
	Accessories Manual				English	English	English	English	English
35	Accessories
	Fill&Drain & Sample Valve				YES
	Load Break Switch				YES
	Thermometer				YES
	Liquid Level Gauge				YES
	Pressure Vacuum Gauge				YES
	Pressure Relief Valve				YES
	Rating & Diagram Plate				YES
	Internal Weak Link Fuses with CLFs				YES