Oil Impregnated Paper Bushings Up to 170 kV (NGB)

Bushing is one of the most important parts of a transformer. In each 3-phase transformer, depending on the ratio, at least 7 bushings are used. In voltage levels above 72.5 kV, only condenser bushings are used because of the need for optimum dimensional design.

Some Features of Bushings made by NirouTrans: Condenser Bushings Niroutrans

1- Excellent Electrical withstand Capability
2- Sufficient Mechanical Strength
3- Low Thermal Stress
4- Magnetic Oil level indicator or Sight Glass (on Request)
5- Large Creepage distance
6- Sufficient Flashover distance
7- High Technology Machinery
8- Meet the requirements of customers according to the world’s most well-known standards.
9- Economical price

Note:

Special customer’s requirements type oil to air can be offered as per tde orders.

Downloads

Basics

Bushing Dimentions (Details)

Bushing Dimentions

NGB1 Models

Instruction Manual

Type Test Certificates

HVB1-325-800 (KEMA)

HVB1-650-800 (KEMA)

NGB1-450-2000 (KONCAR)

NGB1-450-3150 (KONCAR)

NGB1-750-1600 (KONCAR)

Model Details:

: click to switch tables.

Model	Oil Level Indicator	CTE (mm)	Ir (A)	Um (kV)
NGB1-325-1250-CTE=000	Sight Glass	0	1250	72.5
NGB1-325-1250-CTE=000	Magnetic	0	1250	72.5
NGB1-325-1250-CTE=000	Magnetic	300	1250	72.5
NGB1-450-1250-CTE=000	Sight Glass	0	1250	100
NGB1-450-1250-CTE=000	Magnetic	0	1250	100
NGB1-450-1250-CTE=300	Sight Glass	300	1250	100
NGB1-450-1250-CTE=300	Magnetic	300	1250	100
NGB1-450-2000-CTE=000	Sight Glass	0	2000	100
NGB1-450-2000-CTE=000	Magnetic	0	2000	100
NGB1-450-2000-CTE=300	Magnetic	300	2000	100
NGB1-450-3150-CTE=300	Magnetic	300	3150	100
NGB1-650-1250-CTE=000	Sight Glass	0	1250	145
NGB1-650-1250-CTE=000	Magnetic	0	1250	145
NGB1-650-1250-CTE=300	Sight Glass	300	1250	145
NGB1-650-1250-CTE=300	Magnetic	300	1250	145
NGB1-650-1250-CTE=500	Magnetic	500	1250	145
NGB1-650-2000-CTE=300	Magnetic	300	2000	145
NGB1-750-1600-CTE=300	Magnetic	300	1600	170

Model	Code	Um (kV)	Ir (A)	L (mm)	L1 (mm)	L2 (mm)	L3 (mm)	L4 (mm)	L5 (mm)	PCD* (mm)	Dmax** (mm)	Dmin** (mm)	d1 (mm)	d2 (mm)	d3 (mm)	t1 (mm)	D1 (mm)	D2 (mm)	n x d4 (mm)	Detail F	Conductor Diameter*** (mm)	d5 (mm)	d6 (mm)	d7 (mm)	t2 (mm)	R (mm)	Mass (Kg)
NGB1-325-1250-CTE=000	N7210M	72.5	1250	1435	75	680	155	0	190	118	162	130	30	260	100	15	225	185	6 x 16	F1	34	35.7	85	19	15	135	65
NGB1-325-1250-CTE=300	N7213M	72.5	1250	1725	75	680	155	300	480	118	162	130	30	260	100	15	225	185	6 x 16	F1	34	35.7	85	19	15	135	70
NGB1-450-1250-CTE=000	N1010M	100	1250	1707	75	900	155	0	242	118	162	130	30	223	100	15	225	185	6 x 16	F1	34	35.7	85	19	15	135	70
NGB1-450-1250-CTE=300	N1013M	100	1250	2007	75	900	155	300	542	118	162	130	30	223	100	15	225	185	6 x 16	F1	34	35.7	85	19	15	135	80
NGB1-450-2000-CTE=000	N1020M	100	2000	2035	125	1060	155	0	315	154	225	175	60	241	125	15	290	250	8 x 16	F1	50	54	110	5	80	145	120
NGB1-450-2000-CTE=300	N1023M	100	2000	2328	125	1060	155	300	610	154	225	175	60	241	122	15	290	250	8 x 16	F1	50	54	110	5	80	145	133
NGB1-450-3150-CTE=300	N1033M	100	3150	2361	125	900	175	300	645	175	270	190	60	268	160	20	335	290	12 x 16	F3	75	80	175	N/A	125	200	196
NGB1-650-1250-CTE=000	N1410M	145	1250	2440	75	1410	175	0	425	154	265	170	30	287	135	15	335	290	12 x 16	F2	37	38.7	110	29	50	220	163
NGB1-650-1250-CTE=300	N1413M	145	1250	2735	75	1410	175	300	720	154	265	170	30	287	135	15	335	290	12 x 16	F2	37	38.7	110	29	50	220	170
NGB1-650-1250-CTE=500	N1415M	145	1250	2935	75	1410	175	500	920	154	265	170	30	287	135	15	335	290	12 x 16	F2	37	38.7	110	29	50	220	175
NGB1-650-2000-CTE=300	N1423M	145	2000	2880	125	1410	185	300	720	194	265	205	60	325	170	20	335	290	12 x 16	F2	56	60	135	36	50	220	258
NGB1-750-1600-CTE=300	N1713M	170	2000	3048	125	1550	185	300	750	194	265	205	60	320	160	20	335	290	12 x 16	F2	50	54	128	5	40	300	250

* The PCD of Air outlet.
** The O-Ring of Transformer shall be placed against the sealing surface limited to Dmin, Dmax for secure sealing.
*** Diameter of Copper Conductor.