72.5kv/630~1250A Oip Condenser Transformer Bushing (Draw lead) Brdlw

• Application: Power
• Phase: Three
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001
• Model NO.: BRDLW-72.5-1250-4
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Brand: Ville
• Material: Porcelain
• Structure: Bushing Insulator
• Type: B Type Insulator
• Connection Method: Trough Type
• Size of Bearing Capacity: 5000n
• Color: Brown
• Enter Attribute Here (e.g.: Size): Enter Value Here (e.g.: 12 Inches)
• Voltage: 72.5kv
• Current: 630~1250A
• Shape: Short Tail Bushing
• Transport Package: Wooden Cases
• Specification: IEC
• Trademark: VILLE
• Origin: Made in China
• HS Code: 85
• Production Capacity: 50, 000 PCS/Year.

Product Description

Technical parameters:

Main properties
electric properties
System nominal voltage Un(Kv)		35	66	110	132	150	220
Rated voltage Ur(Kv)		40.5	72.5	126	145	170	252
60s power frequency withstand voltage:	Dry kv	95	147	230	275	325	460
	Wet Kv	80	140	230	275	325	460
Lightning impulse withstand voltage chopped wave	Full wave Kv(peak)	200	325	550	650	750	1050
	Kv(peak)		375	635	750	865	1210
Operating impulse withstand voltage(dry or wet)							850
dielectric dissipation factor                      tanδ	(20ºC temperature)Max.	Ur:0.004
	increment	1.05Ur/√3-Ur:0.0005
Ur Partial discharge under voltage		≤5pC
1.5Ur Partial discharge under voltage		≤10pC

 

Bending testing load
Rated voltage Ur(Kv)	Bending testing load(N)
	Rated current Ir(A)
	≤800	800-1600	1600-2500	≥3150
≤52	1250	2000	2000	2500
72.5	1250	1250	4000	4000
126-170	3150	4000	4000	4000
252	4000	5000	5000	5000

 

other properties
Item#	Testing	performance index
1	The bushing can withstand the gauge pressure of the sealing test at 0.2MPa	no leakage
2	interior tranformer oil	Pressure value(Kv)		≥55
		Dielectric loss factor tanδ(90ºC)		≤0.004
		Mico water(μg/g)		≤10
		Chromatography	Acetylene(μL/L)	0
			Hydrogen(μL/L)	≤30
			Total hydrocarbons(μL/L)	≤9
3	Measurement of Dielectric Loss Factor of Terminal to earth under 2kV voltage			≤0.02

 

Type designation

BRDLW- (rated voltage:kV)/ (rated current:A)- (Antifouling grade)

BR-OIP Condenser transformer bushing,OIP Condenser wall bushing represent as CR

D-Short tail bushing,if no "D" it should be Medium-short tail bushing

L:can install CT

W:Antifouling type,3 means creepage distance is 25mm/kV,4 means creepage distance is 31mm/Kv

 

72.5Kv/630~1250A OIP Condenser transformer bushing(Draw lead)
Code	Type	Rated voltage Kv	Rated current A	Main Dimensions(mm)																Creepage distance	MASS KG
				L	L1	L2	L3	L4	L5	D1	D2	D3	d1	d2	d3	d4	A	Z	X
BR4134A	BRDLW-72.5/630-3	72.5	630	1955	1650	700	670	400	35	180	138	280	28	35	18	14	40	60	120	1900	88
BR4144A	BRDLW-72.5/630-4	72.5	630	2010	1705	755	670	400	35	180	138	280	28	35	18	14	40	60	120	2250	92
BR4135A	BRDLW-72.5/630-3	72.5	630	2055	1750	700	770	500	35	180	138	280	28	35	18	14	40	60	120	1900	88
BR4145A	BRDLW-72.5/630-4	72.5	630	2110	1805	755	770	500	35	180	138	280	28	35	18	14	40	60	120	2250	86
BR4143A	BRDLW-72.5/630-4	72.5	630	1910	1605	755	570	300	35	180	138	280	28	35	18	14	40	60	120	2250	88
BR4132A	BRDLW-72.5/630-3	72.5	630	1820	1615	700	535	265	35	180	138	280	28	35	18	14	40	60	120	1900	81
BR4142A	BRDLW-72.5/630-4	72.5	630	1875	1570	755	535	265	35	180	138	280	28	35	18	14	40	60	120	2250	87
BR4130A	BRDLW-72.5/630-3	72.5	630	1585	1280	700	300	30	35	180	138	280	28	35	18	14	40	60	120	1900	75
BR4140A	BRDLW-72.5/630-4	72.5	630	1640	1335	755	300	30	35	180	138	280	28	35	18	14	40	60	120	2250	80
BR4154A	BRDLW-72.5/630-4	72.5	630	2105	1800	850	670	400	35	180	138	280	28	35	18	14	40	60	120	2610	98
BR4234A	BRLW-72.5/1250-3	72.5	1250	2100	1805	700	800	450	40	200	160	350	36	48	24	18	50	110	145	1900	109
BR4244A	BRLW-72.5/1250-4	72.5	1250	2155	1860	755	800	450	40	200	160	350	36	48	24	18	50	110	145	2250	118
BR4235A	BRDLW-72.5/1250-3	72.5	1250	2100	1705	700	800	500	40	200	160	350	36	48	24	18	50	110	140	1900	106
BR4245A	BRDLW-72.5/1250-4	72.5	1250	2155	1860	755	800	500	40	200	160	350	36	48	24	18	50	110	140	2250	114

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