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About Us About Us Philosophy / Vision History Business Area	Product Transformer Hi & Low Voltage Reactor Smart Reactor NCT Solid State Relay Heat sink SVC Power Controller Thyristor Unit Noise Filter SMPS-Power Supply Battery Charger Passive Harmonic Filter Micro Surge Filter Sine-Wave Filter Zero Hamonics Filter Medium Voltage (CT) Medium Voltage (VT,EVT) Combined CT & VT (M.O.F) Epoxy Insulator (MV/HV) Line Potential & Temperature Signaller Current Transformer, Voltage Transformer	Digital Power Protective Relay Ground Fault Relay Zero-Current Trans Earth Leakage Detector, Earth Leakage Relay Panel Board Meters Surge Protective Device Shunt Fan Metal Stamped Items	Overseas Agent Overseas Agent Contact Us Inquiry Contact Information	Reference Section Cataloge User Manual CAD Diagram Certificate Specification 3D CAD Diagram

Product

Transformer
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Hi & Low Voltage Reactor
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Smart Reactor
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
NCT
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Solid State Relay
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Heat sink
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
SVC Power Controller
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Thyristor Unit
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Noise Filter
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
SMPS-Power Supply
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Battery Charger
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Passive Harmonic Filter
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Micro Surge Filter
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Sine-Wave Filter
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Zero Hamonics Filter
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Medium Voltage (CT)
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Medium Voltage (VT,EVT)
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Combined CT & VT (M.O.F)
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Epoxy Insulator (MV/HV)
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Line Potential & Temperature Signaller
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Current Transformer, Voltage Transformer
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Digital Power Protective Relay
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Ground Fault Relay
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Zero-Current Trans
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Earth Leakage Detector, Earth Leakage Relay
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Panel Board Meters
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Surge Protective Device
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Shunt
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Fan
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer
Metal Stamped Items
UL Transformer
1Phase, 3PhaseDIN-Rail & Fused Transformer
1Phase Indicator(LED LAMP)DIN-Rail Transformer
1Phase 1P, General Type Transformer
1P, General Type Transformer1Phase Transformer
1Phase 1P-Auto-Transformer
1P 3P-Isolation Transformer
3P, Transformer3P, Auto Transformer
3P, Auto Transformer1P-Case Type Transformer
Case Type3P-Case type Transformer
3P-Case type TransformerControl transformer
3.3~6.6kV Control transformerFused Type Transformer
1PhaseDC Power Trans.
DC Power Transformer3P, Synchronous Transformer
3P, Synchronous TransformerDC Drive type PulseTransformer
DC Drive type PulseTransformer

Transformer

1Phase

Model No	WY21-20KA WY21-30KA WY21-40KA WY21-50KA
TYPE	1Phase - WT type (Terminal type)
Certification
Rating	-
Input	0-200-220-240-(E)
Output	0-110
Capacity	20kVA~50kVA

Support services

Specifications and Features

Single-phase lottery type with input AC 200V and output is 110V, which can range from normal power supply to full-power supply.

Product is available covering general electric source to large electric power. All models have been acquired of CE.

※ WMT Type : Doesn’t have LED Lamp
※ Over 3KVA : " I "Bolt is attached

Yoonyoung Co.,Ltd.

Product