HOME ꄲ Box substation ꄲ YBM Box Substation-American Box Transformer

YBM Box Substation-American Box Transformer

The combined transformer produced by our factory (commonly known as American box transformer) is a combination of transformer, transformer body, switching equipment, fuse, tap switch and related auxiliary equipment with terminal type and ring network type, which can adapt to the key points of various power supply systems. Can be used for indoor, and can be used outdoors, widely used in residential areas, airports, high-rise buildings, commercial centers, factories, mines, enterprises, hospitals, schools and other occasions, can maximize the depth of the load center, improve the quality of power supply. And can meet the user energy metering, reactive power compensation, low voltage distribution and other configuration requirements, convenient and flexible use.

Product characteristics

Full insulation structure and chain device, to ensure personal safety;
Fully sealed structure, eradicate the oil quality deterioration, prolong the service life;
The load switch has the characteristics of three connection, effectively reduces the ferromagnetic resonance;
Using double fuse protection, to ensure that the system is simple, convenient, economic, reliable and safe operation;
There are silicon steel sheet core, amorphous alloy core, coil core, etc., low loss, low noise, the box does not heat;
High voltage inlet line with elbow type cable plug, can be 200A load current, emergency case can be a load switch operation, and has the characteristics of disconnecting switch;
Small in volume, only about 1 / 3 of the European box change of the same capacity.

General table of combined transformer parameters

rated capacity kVA Ratedpower	Voltage combination Valtage		Connection group grade Connection	Type 9 loss W		Type 11 loss W		no-load current （%） No-Load Current	short-circuit impedance （%） Impedence Voltage	noise (db) Noisy	temperature rise (k)
rated capacity kVA Ratedpower	high-handed kV HV	low pressure kV LV	Connection group grade Connection	carrying idler No-Load Loss	load Load Loss	carrying idler No-Load Loss	load Load Loss	no-load current （%） No-Load Current	short-circuit impedance （%） Impedence Voltage	noise (db) Noisy	temperature rise (k)
30	6 6.3 10 10.5 11	0.4	Yyn0 perhaps Dyn11	130	600	100	600	2.1	4	55	Top 55 The winding 65
50				170	870	130	870	2
63				200	1040	150	1040	1.9
80				250	1250	180	1250	1.8
100				280	1500	200	1500	1.6
125				340	1800	240	1800	1.5
160				400	2200	290	2200	1.4
200				480	2600	330	2600	1.3
250				560	3050	400	3050	1.2
315				670	3650	480	3650	1.1
400				800	4300	570	4300	1
500				960	5100	680	5100	1
630				1200	6200	810	6200	0.9	4.5
800				1400	7500	980	7500	0.8
1000				1700	10300	1150	10300	0.7
1250				1950	12800	1360	12800	0.6
1600				2400	14500	1640	14500	0.6

Combined type transformer insulation level (combined type transformer dielectric level)

rated voltage
(Square root mean)

highest voltage for equipment
(Square root mean)

Rated lightning impact withstand voltage (peak value)

Rated ultra-short-time power frequency withstand voltage (1min)
(Square root mean)

full wave

signal carrier

6

10

7.2

12

60

75

65

85

25

35

Insulation level of high-voltage electrical components (high-voltage electrical apparatus element dielectric level)

rated voltage
(Square root mean)

highest voltage for equipment
(Square root mean)

Rated lightning impact withstand voltage (peak value)

Rated ultra-short-time power frequency withstand voltage (1min)
(Square root mean)

To the ground and alternate

isolating fracture

To the ground and alternate

isolating fracture

6

10

7.2

12

60

75

70

85

32

42

Insulation level of low-voltage electrical components (low-voltage electrical apparatus element dielectric level)

rated voltage	60＜Ui≤300	300＜Ui≤600	660＜Ui≤800	800＜Ui≤1000
Rated ultra-short-time power frequency withstand voltage (lmin) (Square root mean)	2000	2500	3000	3500