50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

‌Product Name‌: 50kVA Dry-Type Three-Phase Winding Non Excited Voltage Regulating Distribution Transformer
‌Capacity‌: 50kVA
‌Delivery Year‌: 2023
‌Country‌: Australia
‌Key Advantages‌:
High Efficiency‌: 15% lower no-load loss compared to traditional Excited Voltage Regulating Distribution Transformers;
Eco-Friendly & Safe‌: Oil-free dry-type design complies with Australian fire safety standards;
Precision Voltage Regulation‌: Achieves ±5% voltage stabilization via Winding Non Excited Voltage Regulating technology;
Compact Size‌: 20% smaller footprint than standard Voltage Regulating Distribution Transformers, saving installation space.
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Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 50kva dry-type winding non excited voltage regulating distribution transformer in China. If you're going to buy customized 50kva dry-type winding non excited voltage regulating distribution transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.

 

 

Product Description of Non Excited Voltage Regulating Distribution Transformer

 

This dry-type transformer utilizes advanced ‌Winding Non Excited Voltage Regulating‌ technology, engineered for commercial and industrial power distribution systems. Its core strength lies in precise voltage control (±5%) through a non-excited regulation module, eliminating frequent power interruptions for adjustments and significantly enhancing supply stability. Unlike ‌Excited Voltage Regulating Distribution Transformers‌ that rely on external excitation devices, this dry-type transformer reduces energy loss by optimizing winding structures. The fully enclosed design (IP54-rated) ensures adaptability to humid or dusty environments. As a ‌Voltage Regulating Distribution Transformer‌, its epoxy resin casting guarantees superior insulation and eliminates oil leakage risks, making it ideal for safety-critical applications like data centers and hospitals. With a 50kVA capacity and balanced three-phase output, this dry-type transformer efficiently supports small-to-medium grid demands, positioning it as the optimal choice for modern power distribution networks.

 

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

 

 

Advantages Over Conventional Transformers

 

‌① Energy Efficiency & Sustainability‌
Compared to standard ‌Voltage Regulating Distribution Transformers‌, this dry-type transformer adopts an oil-free design, reducing environmental hazards and eliminating coolant replacement, cutting maintenance costs by 30%. Its ‌Winding Non Excited Voltage Regulating‌ technology adjusts voltage via physical winding modifications, achieving 18% lower energy conversion loss than ‌Excited Voltage Regulating Distribution Transformers‌.

‌② Safety & Adaptability‌
Traditional oil-immersed transformers pose fire risks, whereas this dry-type transformer features a flame-retardant epoxy-sealed structure (compliant with IEC 60076-11), enabling deployment in basements or high-rises. Its weather resistance surpasses ordinary ‌Voltage Regulating Distribution Transformers‌, operating reliably from -25°C to +50°C.

‌③ Precision & Reliability‌
Standard ‌Excited Voltage Regulating Distribution Transformers‌ depend on electronic excitation systems vulnerable to electromagnetic interference. In contrast, this dry-type transformer employs mechanical non-excited regulation, enhancing anti-interference capability with voltage adjustment response times under 0.5 seconds. Lab tests confirm a 25% longer service life and MTBF (Mean Time Between Failures) exceeding 100,000 hours compared to conventional ‌Voltage Regulating Distribution Transformers‌.

 

 

 

Products parameter

 

Main performance parameters of SC (B) 13 dry-type transformer:
model Rated Capacity
(KVA)
Connection Symbol Voltage combination(KV) no-load loss(W) load loss(W) no-load current(%) Short circuit resistance(%)
high pressure tapping range low pressure
SC13-30 30 Yyn0
or
Dyn11
10

6.3

6
±5%
±2×2.5%
or +1/+3 × 2.5
0.4 150 710 2.0 4.0
SC13-50 50 215 1000 2.0
SC13-80 80 295 1380 1.5
SC13-100 100 320 1570 1.5
SC13-125 125 375 1850 1.3
SC(B)13-160 160 430 2130 1.3
SC(B)13-200 200 495 2530 1.1
SC(B)13-250 250 575 2760 1.1
SC(B)13-315 315 705 3470 1.0
SC(B)13-400 400 785 3990 1.0
SC(B)13-500 500 930 4880 1.0
SC(B)13-630 630 1070 5880 0.85
SC(B)13-630 630 1040 5960 0.85 6.0
SC(B)13-800 800 1210 6960 0.85
SC(B)13-1000 1000 1410 8310 0.85
SC(B)13-1250 1250 1670 9690 0.85
SC(B)13-1600 1600 1960 11700 0.85
SC(B)13-2000 2000 2440 14400 0.7
SC(B)13-2500 2500 2880 17100 0.7

 

 

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Maintenance Guide

 

‌① Routine Inspections‌

Clean the dry-type transformer's surface monthly using dry compressed air (pressure ≤0.3MPa); avoid chemical solvents to prevent epoxy resin corrosion;

Inspect oxidation on ‌Winding Non Excited Voltage Regulating‌ mechanical contacts; apply conductive grease if necessary.

‌② Environmental Controls‌

Maintain humidity ≤85% RH in the installation area with adequate ventilation; avoid co-location with ‌Excited Voltage Regulating Distribution Transformers‌ in high-temperature zones;

Monitor winding temperature via infrared thermometers; normal operating temperature rise should be ≤100K (per GB 1094.11).

‌③ Periodic Maintenance‌

Test insulation resistance every 6 months using a 2500V megohmmeter (minimum 100MΩ);

Calibrate ‌Winding Non Excited Voltage Regulating‌ tap accuracy annually; return for repair if deviation exceeds ±2%;

Conduct partial discharge tests every 3 years; discharge levels must remain <10pC (IEC 60270 compliant).

 

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

 

 

Product Testing

 

This dry-type transformer undergoes four rigorous tests:


Material Inspection‌: Silicon steel core loss ≤1.30W/kg (B=1.7T, 50Hz); copper winding purity ≥99.99%;
Load Test‌: 24-hour full-load operation at 50kVA, verifying temperature rise complies with GB/T 22072-2018;
Voltage Regulation Test‌: ‌Winding Non Excited Voltage Regulating‌ system switches ±5% voltage across 9 taps within ≤1 second;
Comparative Testing‌: Operates alongside ‌Excited Voltage Regulating Distribution Transformers‌, achieving 55dB(A-weighted) noise (40% quieter). All data is TÜV Rheinland-certified, ensuring the long-term reliability of this ‌Voltage Regulating Distribution Transformer‌.

 

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Why choose us?

 

 

 

GNEE strictly follows the comprehensive acceptance testing process to ensure that the performance of each device meets the standards. Our products and services have been successfully applied in more than 50 countries and regions around the world. As a trusted global industrial partner, we are always committed to helping customers achieve their sustainable development vision through high-quality products and full-process services.

Support
• Pre-sales: Free technical consulting, drawing review, and installation training.
• After-sales:
o Global warranty for 2 years; 5-year warranty on core components.
o 7×24-hour remote support, fault response within <24 hours.
o Operation manual provided.

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

Our factory

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

Packing and Delivery

50kVA Dry-Type Winding Non Excited Voltage Regulating Distribution Transformer

 

FAQ
 

Q1: How to Choose Between Oil-Immersed, Dry-Type, or Amorphous Alloy Transformers Based on Needs?

A:Oil-immersed transformers (e.g., 30-2500 kVA/10 kV Oil-Immersed Three-Phase Dual-Winding):
Applicable scenarios: Large factories, substations, outdoor high-voltage power distribution.
Advantages: Excellent heat dissipation for high loads and high-temperature environments, but requires fire prevention and oil leakage precautions.
Dry-type transformers (e.g., Epoxy resin-cast type, Dry-Type Dual-Winding):
Applicable scenarios: Indoor installations (e.g., data centers, commercial buildings), environments with strict fire safety requirements.
Advantages: No insulation oil, pollution-free, low noise, but requires ventilation for heat dissipation.
Amorphous alloy transformers (e.g., Amorphous Alloy Dry-Type):
Applicable scenarios: Grid-end applications, rural power supply, energy-efficient systems.
Advantages: Reduces no-load loss by over 70%, higher efficiency than traditional transformers, ideal for long-term low-load operations.

Q2: Which Equipment is Suitable for Rectifier Transformers (30-3200 kVA Rectifier Type)?

A: Designed specifically for rectifier equipment, such as:
Electroplating lines, electrolytic cells.
Aluminum/copper electrolysis production.
DC motor drive systems.
Features: Three-phase input, adjustable DC voltage output. Note: Harmonic loads may impact transformer performance.

Q3: What are the Differences Between Prefabricated Substations (European Style) and Combined Transformers (Combined Type)?

A:Prefabricated Substations:
High integration: Includes transformers, low-voltage cabinets, and protection devices pre-installed in weatherproof/fire-resistant enclosures.
Applicable scenarios: Rapidly deployable outdoor power systems (e.g., temporary construction sites, remote areas).
Combined Transformers:
Functional integration: Typically combines transformers, metering devices, and protection equipment to simplify power distribution.
Applicable scenarios: Power distribution hubs for small/medium factories or commercial complexes.

Q4: What is the Voltage Adjustment Method for 30-2500 kVA Dual-Winding Non-Adjustable Voltage Transformers?

A:Non-adjustable type: Fixed output voltage set at factory (e.g., 10 kV input → 400 V output); no on-site adjustment.
Applicable scenarios: Stable voltage environments with minimal load fluctuations (e.g., fixed production lines).
For voltage adjustment, choose on-load tap-changing transformers (customizable).

Q5: What are the Temperature Resistance and Lifespan of Epoxy Resin-Cast Dry-Type Transformers?

A:Temperature resistance: Class F (155°C) or Class H (180°C), with overload capacity up to 1.5× rated power.
Lifespan: Over 20 years under normal operation, but requires regular inspections of winding insulation and cooling systems.

 

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