Low Voltage Transformer Bushing
01
DIN 1KV1250 Transformer Bushing Insulators
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product description
DIN 1KV1250 Transformer Bushing Insulator is an electrical component that meets DIN Standard
Rated Voltage: 1KV
Rated Current: 1250A
Creepage Distance:Min75mm
The DT 1KV250 bushings share the same fundamental characteristics and specifications as the DIN 1KV250 bushings, as they are typically manufactured according to the same DIN standards (primarily DIN 42530). These include:
Material: The insulating body is almost always made of porcelain (often specified as high-aluminum porcelain like C120), with brass or copper conductors.
Rated Voltage: 1 kV
Lightning Impulse Withstand Voltage (BIL): Typically around 20 kV.
Power Frequency Withstand Voltage: Usually around 10 kV (dry and wet).
Current Rating: 1250 A.
Creepage Distance: For a 1kV/1250A rating, this is Min 75 mm. This distance along the insulator's surface prevents electrical arcing.
Standard Compliance: Conforms to DIN 42530 and sometimes DIN 40680 (for materials/testing).
Mounting & Sealing: Designed for oil-immersed transformers, with appropriate flanges and gaskets for secure, leak-proof installation.
Usage
The usage of DT 1KV1250 transformer bushing insulators is identical to that of DIN 1KV1250 bushings:
Oil-Immersed Distribution Transformers: They are the standard choice for providing an insulated pathway for electrical conductors on the low-voltage side of oil-filled distribution transformers.
Indoor and Outdoor Installations: Suitable for a variety of environmental conditions.
Low-Voltage Connections: Used to connect the transformer's internal low-voltage windings to the external low-voltage power lines or switchgear.
specification
| Bushings are manufactured to DIN 42530,42539,42531,42532,42533,42534 | |||||||||
| PART NUMBER | DESCRIPTION | Voltage RATING(KV) | I RATING(A) | TANK HOLESIZE mm | BIL(KV) | PF DRY | PF WET | CREEPAGE | STEM CONNECTOR |
| DT 1/250 | DIN 42530 1/250 | 1KV | 250 | - | - | - | - | 60 | M12 |
| DT 1/630 | DIN 42530 1/630 | 1KV | 630 | 45 | - | - | - | 75 | M20 |
| DT 1/1000 | DIN 42530 1/1000 | 1KV | 1000 | 56 | - | - | - | 75 | M30 |
| DT 1/2000 | DIN 42530 1/2000 | 1KV | 2000 | 70 | - | - | - | 75 | M42 |
| DT 1/3150 | DIN 42530 1/3150 | 1KV | 3150 | 90 | - | - | - | 75 | M48 |
| DT 3/250 | DIN 42539 3/250 | 3KV | 250 | 39 | 40 | 14 | 10 | 120 | M12 |
| DT 3/630 | DIN 42539 3/630 | 3KV | 630 | 45 | 40 | 14 | 10 | 120 | M20 |
| DT 3/1000 | DIN 42539 3/1000 | 3KV | 1000 | 56 | 40 | 14 | 10 | 125 | M30 |
| DT 3/2000 | DIN 42539 3/2000 | 3KV | 2000 | 70 | 40 | 14 | 10 | 125 | M42 |
| DT 3/3150 | DIN 42539 3/3150 | 3KV | 3150 | 90 | 40 | 14 | 10 | 125 | M48 |
| DT 3/4500 | DIN 42539 3/4500 | 3KV | 4500 | 119 | 40 | 14 | 10 | 130 | M55 |
| DT 3/6500 | DIN 42539 3/6500 | 3KV | 6500 | 119 | 40 | 14 | 10 | 130 | M75 |
| 10NF250 | DIN 42531 10NF250 | 12KV | 250 | 78 | 75 | 28 | - | 305 | M12 |
| 10NF630 | DIN 42532 10NF630 | 12KV | 630 | 90 | 75 | 28 | - | 305 | M20 |
| 10NF1000 | DIN 42533 10NF1000 | 12KV | 1000 | 110 | 75 | 28 | - | 295 | M30 |
| 10NF2000 | DIN 42533 10NF2000 | 12KV | 2000 | 135 | 75 | 28 | - | 295 | M42 |
| 10NF3150 | DIN 42533 10NF3150 | 12KV | 3150 | 135 | 75 | 28 | - | 295 | M48 |
| 20NF250 | DIN 42531 20NF250 | 24KV | 250 | 78 | 125 | 50 | - | 450 | M12 |
| 20NF630 | DIN 42532 20NF630 | 24KV | 630 | 90 | 125 | 50 | - | 440 | M20 |
| 20NF1000 | DIN 42533 20NF1000 | 24KV | 1000 | 110 | 125 | 50 | - | 445 | M30 |
| 20NF2000 | DIN 42533 20NF2000 | 24KV | 2000 | 135 | 125 | 50 | - | 445 | M42 |
| 20NF3150 | DIN 42533 20NF3150 | 24KV | 3150 | 135 | 125 | 50 | - | 445 | M48 |
| 30NF250 | DIN 42531 30NF250 | 36KV | 250 | 78 | 170 | 70 | - | 607 | M12 |
| 30NF630 | DIN 42532 30NF630 | 36KV | 630 | 90 | 170 | 70 | - | 662 | M20 |
| 30NF1000 | DIN 42533 30NF1000 | 36KV | 1000 | 110 | 170 | 70 | - | 635 | M30 |
| 30NF2000 | DIN 42533 30NF2000 | 36KV | 2000 | 135 | 170 | 70 | - | 635 | M42 |
| 30NF3150 | DIN 42533 30NF3150 | 36KV | 3150 | 135 | 170 | 70 | - | 635 | M48 |
