Application of Distribution Oil-Immersed Transformer in Mining

General introduction of KS9 series mining flameproof dry-type transformer:

This series of transformer silicon steel core which is composed of crystal particles of low loss of outstanding. They have the advantages of small low no-load loss, no-load current and low noise.

The box structure is strong, can withstand a normal pressure.

KS9 series transformer is suitable for coal mine underground substation, bottom, the total inlet duct and the main air duct, although there is no gas but dangerous places. Also applies to tunnel more humid environment.

Service conditions:

a. The height of sea level is less than 1000m.

b. Highest temperature 40ºC

c. Lowest temperature: -20ºC

d. Maximum daily average temperature: 25ºC

e. Maximum annual mean temperature: 20ºC

f. The relative humidity is less than 95%(when the sir temperature is 25ºC)

g. Install at the site with dust methane, but no explosion water

h. Power supply voltage profile approximate to sine wave

Scope of application:

It suits for center substation, mine stop, general wind bypass and main wind bypass which has gas but no explosion danger, and the moisture environment.

**Product features(advantages )of KS9 series mining flameproof dry-type transformer:**

A.Adopt silicon steel sheet iron core which is made of excellent low loss crystal granule.

B. Low no-load loss, small no-load current and low noise.

Product Certification of KS9 series mining flameproof dry-type transformer:

Product Certification of KS9 series mining flameproof dry-type transformer

Deliver and shippment of KS9 series mining flameproof dry-type transformer:

Sea transportation. 1 set Transformer per wooden carton.

Production process of KS9 series mining flameproof dry-type transformer：

Production process of KS9 series mining flameproof dry-type transformer

KS9 Series Oil Immersed Mining Transformer
				Loss (W)				Weight (kg)			(mm)
Rated Capacity	Voltage Group(kV)		Connection		(75)	No-load current	Impedance				(L)	(W)	(H)
(kVA)	HV	LV	Connection	No-load	Load	%	%	Machine	Oil	Gross	Dimension
50	10 6	0.693/0.4	Yy0-d11	170	870	2	4	230	80	390	1200	950	900
80				250	1250	1.8		310	100	530	1300	950	950
100				290	1500	1.6		360	110	600	1300	950	1000
125				340	1800	1.5		425	120	690	1300	950	1000
160				400	2200	1.4		480	140	810	1350	950	1040
200				480	2600	1.3		580	170	955	1400	970	1080
250				560	3050	1.2		670	180	1100	1450	1000	1100
315				670	3650	1.1		775	240	1305	1500	1000	1150
400				800	4300	1		940	280	1570	1600	1050	1150
500				960	5100	1		1155	300	1790	1650	1050	1200
630				1200	6200	0.9	4.5	1310	345	2150	1650	1120	1220
(Note): (Tapping range of high voltage) ±5%; ±2×2.5%, Frequency: 50Hz.

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