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Explosion-proof AC mobile substation for mining

The explosion-proof AC mobile substation for mining is the mobile complete device consisting of the dry transformer for explosion-proof AC mobile substation for mining, permanent-magnet high-voltage vacuum switch for KBG series explosion-proof AC mobile substation for mining and low-voltage protection box for BXB series explosion-proof mobile substation for mining. It is applicable for the place with west environment under the coal mine, including gas and coal dust, and with explosion hazard, and provides power supply for the frequency inverter.

Technical parameters
Characteristics

Model meaning:

Technical parameters:

Performance parameters of dry transformer for explosion-proof AC mobile substation for mining with primary rated voltage of 6kV

Rated capacity (kVA)	Voltage combination (kV)		Connection unit symbol	Loss		Impedance voltage (％)	No-load current (％)
Rated capacity (kVA)	Primary voltage	Secondary voltage	Connection unit symbol	No load	Load	Impedance voltage (％)	No-load current (％)
1250	6 （+10%,+5%,0,-5%）	2×1.905	Dy11d0	3100	7400	8	1.1
1600				3680	8950	8	1
2000				4180	10600	8	1
2500				5100	12200	8	0.8
3150				6800	13500	8	0.8

Performance parameters of dry transformer for explosion-proof AC mobile substation for mining with primary

Performance parameters of dry transformer for explosion-proof AC mobile substation for mining with primary rated voltage of 10kV

Rated capacity (kVA)	Voltage combination (kV)		Connection unit symbol	Loss		Impedance voltage (％)	No-load current (％)
Rated capacity (kVA)	Primary voltage	Secondary voltage	Connection unit symbol	No load	Load	Impedance voltage (％)	No-load current (％)
1250	10 （+10%,+5%,0,-5%）	2×1.905	Dy11d0	3400	8380	8	1.1
1600				3950	9750	8	1
2000				4680	11200	8	1
2500				5400	12400	8	0.8
3150				7000	13700	8	0.8

rated voltage of 6kV

Performance parameters of dry transformer for explosion-proof AC mobile substation for mining with primary

rated voltage of 6kV

Serial No.	Model	Length mm	Width mm	Height mm	Weight kg	Model	Length mm	Width mm	Height mm	Weight kg
1	KBZSGZY-1250/6/2×1.905	4862	1055	1605	8890	KBZSGZY-1250/10/2×1.905	4862	1040	1650	8695
2	KBZSGZY-1600/6/2×1.905	4932	1060	1690	9675	KBZSGZY-1600/10/2×1.905	4932	1100	1705	9185
3	KBZSGZY-2000/6/2×1.905	5022	1110	1795	10950	KBZSGZY-2000/10/2×1.905	5012	1100	1865	11000
4	KBZSGZY-2500/6/2×1.905	5252	1160	1855	12670	KBZSGZY-2500/10/2×1.905	5222	1180	1920	12805
5	KBZSGZY-3150/6/2×1.905	5782	1270	1920	15765	KBZSGZY-3150/10/2×1.905	5952	1290	1920	16025

n case of any change in the external dimensions and weight provided in the instructions due to technical improvement,

the actual product shall prevail.

1. Low no-load loss

The high-quality cold rolled grain-oriented silicon steel sheet with high permeability and low loss is adopted for manufacturing. 45° fully-beveled seam and multi-stage step stacking structure, which effectively reduces no-load loss, no-load current and noise.

2. Low noise

The noise is from the iron core, and is transferred to the surrounding through the shell. The connecting position is added with silica gel plate, which cuts off the noise spreading approach.

3. Light weight and small volume

4. The converter mobile substation has explosion-proof and damp-proof performance.

5. The converter mobile substation has perfect overload, short circuit and leakage protection. There is electrical interlock or mechanical interlock device between the high- and low-voltage switches and the high-voltage switch and the circuit breaker of the upper stage.

6. Energy conservation and environmental protection

1) Nomex paper-wrapped line with insulation grade C imported from American DuPont Company is adopted, air insulation and cooling. It has no pollution on the environment, and the product has long service life; the product can be decomposed for recovery after the service life is ended;

2) The high-quality 30Q130 cold-rolled oriented silicon steel sheet and oxygen-free copper conductor are adopted, so that the actual total loss is lower than that of the foreign similar products, which saves the energy, and lowers noise. The iron core surface is applied with the high-temperature-resistant rust-proof and damp-proof paint, Grade H insulation material is adopted for the iron core insulator, and there is no damage after operation at high temperature for a long term.