SCB10, SCB13

Cast-resin dry-type transformers

Three-phase dry-type power transformers with epoxy-resin cast windings and foil LV winding. Designed for sites with stringent fire-safety requirements and indoor power distribution systems.

Key parameters

HV voltage class: 10 kV
LV voltage: 0.4 kV
Rated power: 30 … 2500 kVA
Vector group: Yyn0, Dyn11
Short-circuit impedance: 4 % / 6 %

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General information

The transformers have a wide range of applications and are particularly suitable for sites with stringent fire-safety requirements: mines, oil fields, metro systems, power plants, schools, hospitals, shopping centres, high-rise buildings, as well as any indoor power distribution systems.

SC(B)x-x/10

S	Three-phase
C	Cast resin (epoxy resin encapsulation)
(B)	Foil LV winding
x	Design serial number
x	Rated power, kVA
10	HV side voltage class, kV

Service conditions

Installation altitude: not more than 1000 m above sea level.
Supply voltage waveform: approximately sinusoidal.
Symmetry of the polyphase supply voltage: the voltage of the network to which a polyphase transformer is connected should be approximately symmetrical.
Ambient temperature: maximum +40 °C; maximum daily average +30 °C; maximum annual average +20 °C; minimum −30 °C (for indoor transformers).

Main technical parameters

Rated power, kVA	Voltage combination			Vector group	Losses (120 °C), kW		No-load current, %	Short-circuit impedance, %	Weight, kg
Rated power, kVA	HV, kV	HV tapping range, %	LV, kV	Vector group	No-load	Load	No-load current, %	Short-circuit impedance, %	Oil weight	Total weight
30	6 6.3 6.6 10 10.5 11	±5 ±2×2.5	0.4	Yyn0 Dyn11	0.71	0.19	1.6	4	250	320
50					1	0.27	1.4		370	460
63					1.38	0.37	1.2		460	550
80					1.57	0.4	1.1		490	580
100					1.85	0.47	1.0		570	680
125					2.13	0.54	1.0		640	750
160					2.52	0.62	0.9		775	890
200					2.75	0.72	0.8		895	1030
250					3.47	0.88	0.8		1100	1250
315					3.99	0.98	0.7		1200	1350
400					4.88	1.16	0.7		1460	1610
500					5.87	1.34	0.6		1680	1840
630					5.96	1.3	0.6	6	1800	1980
800					6.95	1.52	0.5		2130	2310
1000					8.13	1.77	0.45		2520	2720
1250					9.69	2.09	0.45		3075	3300
1600					11.73	2.45	0.45		3670	3900
2000					14.45	3.32	0.4		4420	4670
2500					17.17	4.0	0.4		5310	5580

Overall and mounting dimensions, mm

Rated power, kVA	Overall and mounting dimensions, mm
Rated power, kVA	L	W	H	C1	C2
30	660	450	640	300	400
50	770	500	730	400	400
63	820	500	770	400	450
80	820	500	770	400	450
100	880	500	800	400	450
125	930	500	830	400	450
160	1000	660	970	550	660
200	1020	750	1105	550	660
250	1130	750	1140	550	660
315	1140	7560	1115	550	660
400	1190	750	1220	660	660
500	1220	780	1280	660	720
630	1350	800	1300	660	720
800	1400	800	1360	820	820
1000	1460	900	1450	820	820
1250	1570	900	1540	820	820
1600	1610	1050	1660	820	950
2000	1720	1050	1770	950	950
2500	1780	1050	1950	950	950

Transformer series — product photos

10 kV, 20 kV S11/S13 — oil-immersed distribution transformers

10 kV, 20 kV SBH15-M — oil-immersed amorphous-alloy core transformer

10 kV SC(B)10/SC(B)11/SC(B)12/SC(B)13 — epoxy-resin cast dry-type transformer

10 kV SCBH15, SGBH16 — amorphous-alloy core dry-type transformers

10 kV SG(Z)(B)11-x/x — non-encapsulated dry-type power transformer, thermal class H

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