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Three-phase photovoltaic isolation transformer

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  • Release time: 2026-10-21
The company adopts high-quality materials and advanced process technology to professionally produce BK, SG, SGG series three-phase and single-phase dry-type isolation transformers. In the power grid, this series of transformers not only has the voltage transformation function, but also can isolate the third harmonic of the power grid to the equipment, and protect the machine from heat generation and the reduction of the service life of insulating materials.

三相光伏隔离变压器(火牛变压器)

Brand: Changrongyuan Power Supply
Name: Three-phase photovoltaic isolation transformer
Model: 1KVA–1000KVA
Input Voltage: 380V (can be customized according to actual demand)
Output Voltage: 380V (can be customized according to actual demand)
Moisture-proof Method: Open type
Cooling Method: Temperature-controlled air cooling
Winding Form: Double winding

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

三相光伏隔离变压器(火牛变压器)

Product Overview

The company adopts high-quality materials and advanced process technology to professionally produce BK, SG, SGG series three-phase and single-phase dry-type isolation transformers. In the power grid, this series of transformers not only has the voltage transformation function, but also can isolate the third harmonic of the power grid to the equipment, and protect the machine from heat generation and the reduction of the service life of insulating materials.
It is especially suitable for imported equipment (200V, 220V, 380V, 415V, 440V, 480V, 600V, etc. input → 200V, 220V, 380V, 415V, 440V, 480V, 600V arbitrary voltage output).
With specifications ranging from 1KVA to 1000KVA, BK, SG, SGG series dry-type transformers are widely applicable to AC 50~60HZ. The input and output voltages (single-phase, three-phase or multi-channel input and output, etc.), connection modes, tap adjustment positions, winding capacity distribution, secondary winding configuration, outer box (selected according to different use environments) of the products can all be carefully designed and manufactured according to users' requirements.

Energy-saving Benefit Analysis

1. Adopt high-quality cold-rolled silicon steel sheet stacking; adopt special varnish dipping process and oven drying! It effectively reduces vibration and noise during operation; the introduction of new processes and new technologies such as high temperature resistant insulating material design makes the transformer more energy-saving and quieter. The energy-saving and low-noise coil is equipped with ventilation slots for smooth air flow, which effectively reduces the coil temperature.
2. Products with outer boxes are all equipped with casters (for products below 100KVA), voltmeter, ammeter, cooling fan and temperature controller. When the transformer temperature exceeds 70°C, the fan will start.

Application Sites

Widely used in photovoltaic, industry, agriculture, transportation, post and telecommunications, military, railway, imported equipment, scientific research and cultural fields for large electromechanical equipment, metal processing equipment, production lines, construction engineering equipment, elevators, medical equipment, embroidery and textile equipment, air conditioners, radio and television, household electrical appliances, lighting and other places requiring voltage transformation.

Specification Dimensions

Single-phase Dry-type Isolation Transformer (Huoniu Transformer)

Capacity (KVA) Input Voltage (V) Output Voltage (V) Rated Current (A) External Dimension (mm)L*W*H Weight (kg)
BK-5 220 220 18 420*380*660 40
BK-6 220 220 21 420*380*660 45
BK-8 220 220 29 420*390*660 50
BK-10 220 220 36 420*380*660 55
BK-12 220 220 45 420*380*660 65
BK-15 220 220 54 420*380*660 75
BK-20 220 220 72 510*440*660 90
BK-30 220 220 106 610*480*720 110
BK-40 220 220 145 800*750*810 140
BK-50 220 220 180 800*750*810 180

Three-phase Dry-type Isolation Transformer (Huoniu Transformer)

Specification Model Rated Capacity (KVA) Phase Number Output Current (A) Input Voltage (V)  Output Voltage (V) Weight (kg) External Dimension (mm)L*W*H
SG-6 6 3 7 380 380 65 470*380*660
SG-8 8 3 9.7 380 380 80 510*440*660
SG-10 10 3 12 380 380 95 510*440*660
SG-12 12 3 15 380 380 115 510*440*660
SG-15 15 3 18 380 380 125 510*440*660
SG-20 20 3 24 380 380 140 610*480*720
SG-25 25 3 30 380 380 155 610*480*720
SG-30 30 3 36 380 380 180 700*500*750
SG-40 40 3 48 380 380 220 800*750*810
SG-50 50 3 60 380 380 250 800*750*810
SG-60 60 3 73 380 380 300 800*750*810
SG-80 80 3 97 380 380 340 1000*750*900
SG-100 100 3 121 380 380 380 1000*750*900
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