China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
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China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies
China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies

China KBSG9-50~1600/10 Mining Flameproof Dry Type Transformer Factory, Companies

The KBSG9 series mining flameproof dry-type transformer is designed for underground environments with methane gas, coal dust, and explosion hazards. It features a high-strength structure, low temperature rise, and excellent heat dissipation. The transformer is moisture-resistant and requires minimal maintenance. It operates reliably at altitudes up to 1000m, with ambient temperatures ranging from -5°C to +40°C. It can withstand relative humidity up to 95% at 25°C. The installation site must be free from severe vibration, and the inclination angle should not exceed 15 degrees.

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Product Description

Type & Meaning

KBSG9-4
K Mining Type
B Flameproof Type
S Phase Number: "S" for Three-Phase, "D" for Single-Phase
G Dry Type (Non-Encapsulated)
9 Performance Level Code
□ T indicates cylindrical shape; not applicable for rectangular shell
□ Rated Capacity (kVA)
□ Voltage Class (kV)

Product Features

The core of this series of transformers is made of high-quality low-loss grain-oriented silicon steel sheets, featuring low no-load loss, small no-load current, and low noise. All insulation adopts Class H or Class C insulating materials with good thermal stability, enabling long-term full-load operation.

Product Display

KBSG9-50~1600 Mining Dry Type Transformer
KBSG9-50~1600 Dry Type Transformer Front

Technical Parameters

Technical Parameters of 6kV KBSG9 Mining Flameproof Dry-Type Transformer

Rated Capacity
(kVA)		 Voltage Combination
(kV)		 Connection Method Short-Circuit Impedance
(%)		 Losses (W) No-Load Current
(%)		 Weight
(kg)		 Overall Dimensions (mm)
L×W×H
No-Load Load
KBSG-50/6 High Voltage:
6kV

Low Voltage:
0.693/0.4kV,
1.2/0.693kV,
3.45kV		 Yy0(d11) 4 350 550 2.5 1250 2075×1100×1050
KBSG-80/6 450 780 2.5 1300 2150×1100×1100
KBSG-100/6 520 920 2.5 1400 2150×1100×1100
KBSG-160/6 700 1300 2.0 1500 2200×1100×1220
KBSG-200/6 820 1550 2.0 2100 2650×1100×1400
KBSG-250/6 950 1800 2.0 2470 2690×1100×1420
KBSG-315/6 1100 2150 1.8 2895 2830×1100×1410
KBSG-400/6 1300 2600 1.8 3260 2920×1100×1440
KBSG-500/6 1500 3100 1.5 3700 2990×1100×1475
KBSG-630/6 1800 3680 1.5 4120 3050×1100×1550
KBSG-800/6 Yy0(d11)
Yyno		 2050 4500 1.0 5300 3100×1100×1430
KBSG-1000/6 2350 5400 1.0 5700 3160×1100×1480
KBSG-1250/6 Yy0
Yyno		 2750 6500 1.0 6600 3200×1100×1520
KBSG1600/6 3350 8000 0.8 7600 3260×1100×1570

Technical Parameters of 10kV KBSG9 Mining Flameproof Dry-Type Transformer

Rated Capacity
(kVA)		 Voltage Combination
(kV)		 Connection Method Short-Circuit Impedance
(%)		 Losses (W) No-Load Current
(%)		 Weight
(kg)		 Overall Dimensions (mm)
L×W×H
No-Load Load
KBSG-50/10 High Voltage:
10kV

Low Voltage:
0.693/0.4kV,
1.2/0.693kV,
3.45kV		 Yy0(d11) 4 390 680 2.5 1250 2075×1100×1050
KBSG-80/10 490 880 2.5 1300 2150×1100×1100
KBSG-100/10 560 1050 2.5 1400 2150×1100×1100
KBSG-160/10 800 1500 2.0 1500 2200×1100×1200
KBSG-200/10 950 1800 2.0 2200 2760×1100×1480
KBSG-250/10 1100 2100 2.0 2760 2800×1100×1510
KBSG-315/10 1300 2500 1.8 2990 2840×1100×1500
KBSG-400/10 1500 3000 1.8 3430 2940×1100×1550
KBSG-500/10 1750 3500 1.5 3800 3020×1100×600
KBSG-630/10 2000 4100 1.5 4380 3140×1100×1410
KBSG-800/10 Yy0(d11)
Yyno		 2300 5100 1.2 5400 3190×1100×1490
KBSG-1000/10 4.5 2600 6100 1.2 6500 3240×1100×1530
KBSG-1250/10 Yy0
Yyno		 3100 7400 1.0 7100 3300×1100×1580
KBSG1600/10 5 3800 8500 1.0 8050 3350×1100×1630

Frequently Asked Questions

What does the KBSG designation mean for transformers?
KBSG represents Mining ("K"), Flameproof ("B"), Three-Phase ("S"), and Dry-Type non-encapsulated ("G") transformers specifically engineered for underground mining environments.
What insulation classes are utilized in the KBSG9 series?
The series uses high-quality Class H or Class C insulating materials, providing thermal stability suitable for continuous full-load operations.
What core material is used to reduce energy loss?
The core is made from high-quality low-loss grain-oriented silicon steel sheets, designed to minimize no-load losses, lower no-load current, and reduce operational noise.
What capacity ranges are available for 6kV and 10kV models?
Both the 6kV and 10kV series provide capacities ranging from 50 kVA up to 1600 kVA to accommodate various power requirements.
Can the KBSG9 transformer operate in explosive gas environments?
Yes, the flameproof design ("B") allows the transformer to operate safely in hazardous underground mine locations containing methane and coal dust.

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