QDTB® Transformer

VEM-250

Vibration-EM Series • 250kVA • 0.38/0.38 kV

Product Image & Parameters

Vibration-EM - QDTB

Images are for illustration purposes only

VEM-250

Vibration-EM Series

Capacity
250kVA
LV Voltage
0.38kV
Frequency
50Hz
Short-circuit impedance
5%
Cooling method
AN
Applied standard
GB/T 1094, IEC 60076
Dimensions
700×580×700 mm
Weight
750kg
Energy SavingLow Loss

TECHNICAL DRAWING

Model: VEM-250 | Type: Oil-immersed transformer | Capacity: 250 kVA

FRONT ELEVATION

Oil level1U1V1W2U2V2W2NTAPN.P.180mm240mm

ELECTRICAL SCHEMATIC

HV WINDING (Delta)1U1V1WLV WINDING (Star)2U2V2W2NDyn11

EFFICIENCY vs LOAD

90%95%98%99%0%25%50%75%100%≈99%load %efficiency %

SIDE VIEW

Oil level135mm

TOP VIEW

1U1V1W2U2V2W2N135mm

TERMINAL BLOCK

HV TERMINAL BLOCK1U1V1W1N1PELV TERMINAL BLOCK2U2V2W2N2PE2122Terminal block configurationTin-plated copper busbar

CORE & WINDING

OIL / TANKHV winding/bushingINSULATIONLV winding/bushingIron coreconcentric cross-section

Technical specifications

1. Model:VEM-250
2. Type:Oil-immersed transformer
3. Capacity:250 kVA
4. Frequency:50 Hz
5. HV voltage:0.38 kV
6. LV voltage:0.38 kV
7. HV current:-
8. LV current:-
9. Vector group:Dyn11
10. Impedance:5%
11. Insulation level:A
12. Temperature rise:65K
13. No-load loss:-
14. Load loss:-
15. No-load current:-
16. Cooling method:AN
17. Tap changer:±2×2.5%
18. Standard:GB/T 1094, IEC 60076
19. Dimensions:700×580×700 mm
20. Weight:750kg
LEGEND:
Iron core
HV winding/bushing
LV winding/bushing
Dimension line

Product Description

VEM-250 series Vibration-EM Pulse transformer. 250kVA 0.38kV/0.38kV. Class F insulation, dry-type design. Genuine QDTB product, ISO 9001 certified, global export.

Instant Selection & Quote Calculator

Select your specifications to get an estimated price instantly.

1 · Configure
2 · Your price
EXW (FOB Qingdao)
$10
Range $10 ~ $11 (±8%)
Price Breakdown
Base price (interpolation)$10
× Product factor×1.0000
× Country factor×1.0000
× Copper-linked factor×1.0000
+ Options / accessories$0
Shipping quoted separately per destination port.

Aluminum winding — no copper linkage

Reference prices are for estimation only and do not constitute a formal offer.

3 · Get this quote

We will reply with your latest quote instantly.

VEM-250 - Frequently Asked Questions

QWhat are the main applications of VEM-250?

VEM-250 (Vibration-EM series, Special/Isolation/Control Transformers) is widely used in industrial power distribution, commercial buildings and utility power systems. Can be flexibly configured according to actual project requirements.

QWhat are the main technical specifications of VEM-250?

Key specifications: Capacity: 250kVA, HV 0.38 kV, LV 0.38 kV, Frequency 50 Hz, Impedance 5%, Cooling AN, Standard GB/T 1094, IEC 60076.

QCan VEM-250 be custom ordered?

Yes. QDTB® provides comprehensive OEM/ODM customization services. Parameters such as capacity, voltage ratio, cooling method, connection group and protection class can all be adjusted. Over 25 years of manufacturing experience ensures consistent quality.

QHow to get a quote and technical documentation?

Contact via the "Send Inquiry" button below, or contact sales at Alice@qdtb-transformer.com / +86 13698683193. We provide detailed quotations and technical documentation instantly.

Related Products in Vibration-EM Series

VEM-400
Rated Capacity: 400kVA
Voltage: 0.38/0.38 kV
VEM-350
Rated Capacity: 350kVA
Voltage: 0.38/0.38 kV
VEM-300
Rated Capacity: 300kVA
Voltage: 0.38/0.38 kV
VEM-150
Rated Capacity: 150kVA
Voltage: 0.38/0.38 kV
VEM-200
Rated Capacity: 200kVA
Voltage: 0.38/0.38 kV

Interested in VEM-250?

Contact us for pricing, technical support, or custom requirements.

Send InquiryView All Vibration-EM Models