24kV FRP Capacitive Transformer Bushing (guidebar type)

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Electrical & Grid

Transformer Accessories

Nominal voltage (kV)：20
Rated voltage (the highest voltage of the equipment) (kV)：24
Dry Frequency withstand voltage (kV/min)：55
Wet Frequency withstand voltage (kV/min)：50
Whole Wave Thunder impulse withstands voltage (kV)：126
Intercepted WaveThunder impulse withstands voltage (kV)：137.5
Maximum Dielectric dissipation factor： At 1.05Um, the lower limit should not be over 0.4%
Increment Dielectric dissipation factor： At 1.05Um, the variation to Um should not be over 0.1%
Test tap insulation level (kV/min)：3
Um Local discharge (pC): ≤10
1.05Um/√3 Local discharge (pC): ≤5
leakage test: 0.6MPa/20min without leakage
Thermal short-time current: 25 times the bushing rated current, the maximum is 100kA and lasts 2S
Outdoor creepage extender: 50

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DESCRIPTION

Detailed Parameters

Product Code			BT2001	BT2002	BT2003	BT2004	BT2005	BT2006	BT2007	BT2008	BT2009	BT2010	BT2011
Specification			QXFBRGW-24/800-4	QXFBRGW-24/1000-4	QXFBRGW-24/1250-4	QXFBRGW-24/1600-4	QXFBRGW-24/2000-4	QXFBRGW-24/2500-4	QXFBRGW-24/3150-4	QXFBRGW-24/4000-4	QXFBRGW-24/5000-4	QXFBRGW-24/6300-4	QXFBRGW-24/8000-4
Total Length		L	785	785	785	860	860	895	930	915	925	980	1005
Air Wiring Terminal	Hole Distance	a1	40	40	40	40	50	50	50	50	50	60	60
	Board Size	a2*a3	80*80	80*80	80*80	100*100	100*100	120*120	120*120	150*155	150*155	180*125	180*145
	Holes Number*Holes Diameter	n1*Φd1	4*Φ14	4*Φ14	4*Φ14	4*Φ18	4*Φ18	4*Φ18	4*Φ18	9*Φ18	9*Φ18	6*Φ18	6*Φ18
	Thickness	δ1	12	12	14	16	18	20	20	20	20	20	20
Outdoor Creepage Extender	Insulation Clearance	L1	280	280	280	280	280	280	280	280	280	280	280
Outdoor Creepage Extender	Max. Creepage Extender Out Diameter	ΦD2	220	220	220	220	220	220	220	220	220	220	290
Mounting Flange	Length	L4	70	70	70	70	70	70	70	70	70	70	70
	Hole Center Distance	ΦD3	190	190	190	190	190	190	190	190	190	250	250
	Hole Diameter	ΦD6	220	220	220	220	220	220	220	220	220	290	290
	Holes Number*Holes Diameter	n2*d2	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ14	6*Φ18	6*Φ18
	Vent Hole Position	L5	60	60	60	60	60	60	60	60	60	90	90
	Thickness	δ2	18	18	18	18	18	18	18	18	18	18	18
Oil-end Core	Total Length	L2	255	225	225	270	270	270	305	230	240	290	315
	Earth Length	L3	100	100	100	100	100	100	100	100	100	100	100
	Core Diameter	ΦD4	70	70	70	85	85	85	85	100	100	120	125
Oil-end Wiring Terminal	Hole Distance	a4	30	30	30	40	40	40	50	45	50	60	60
	Board Size	a5*a6	60*60	60*60	60*60	80*80	80*80	80*80	100*100	80*90	100*100	120*150	120*150
	Holes Number*Holes Diameter	n3*Φd3	4*Φ14	4*Φ14	4*Φ14	4*Φ14	4*Φ14	4*Φ14	4*Φ18	4*Φ14	4*Φ18	4*Φ18	4*Φ18
	Thickness	δ3	10	10	10	14	14	16	16	20	25	20	30
	Offset	L5	25	25	25	35	35	35	40	0	0	0	0
Upper Equalizing Ball Diameter		ΦD1	88	88	88	103	103	103	103	118	118	133	143
Weight(kg)			20	30	30	30	30	35	35	45	45	45	45

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