Shop three-phase transformer protection

Sponsored
About our ads
$6,240.25
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 112.5 Kva
Maddox
$6,240.25
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 112.5 Kva
Maddox
$10,380.00
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 225 Kva
Maddox
$10,380.00
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 225 Kva
Maddox
$1,709.75
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 15 Kva | New
Maddox
$1,709.75
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 15 Kva | New
Maddox
$217.62
ICM Controls ICM532 3-Phase Surge Protective Device, 600VAC (Delta) Or 347/600VAC (Wye) | Skip The Warehouse
Skip The Warehouse
$217.62
ICM Controls ICM532 3-Phase Surge Protective Device, 600VAC (Delta) Or 347/600VAC (Wye) | Skip The Warehouse
Skip The Warehouse
$1,556.09
$2,100.00
Y015QTCF3L0U - Hammond Power Solutions 15 Kva 3-Phase Autotransformer NEMA 3R
Essential Electric Supply
25% off
$1,556.09
$2,100.00
Y015QTCF3L0U - Hammond Power Solutions 15 Kva 3-Phase Autotransformer NEMA 3R
Essential Electric Supply
$2,639.25
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$2,639.25
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$77.86
$340.99
Ditek Dtk-4803Cmxplus 3-Phase Surge Protector 480Vac
ktool-sao-feed
2
77% off
$77.86
$340.99
Ditek Dtk-4803Cmxplus 3-Phase Surge Protector 480Vac
ktool-sao-feed
$210.42
ICM Controls ICM531 3-Phase Surge Protective Device For 480VAC (Delta) Or 277/480VAC (Wye) | Supplyhouse.Com
SupplyHouse.com
$210.42
ICM Controls ICM531 3-Phase Surge Protective Device For 480VAC (Delta) Or 277/480VAC (Wye) | Supplyhouse.Com
SupplyHouse.com
$198.06
ICM CONTROLS, Surge Protective Device, 3-Phase, 240VAC/120/208VAC, NEMA 4X Watertight
Voomi Supply
2
$198.06
ICM CONTROLS, Surge Protective Device, 3-Phase, 240VAC/120/208VAC, NEMA 4X Watertight
Voomi Supply
$18.43
$22.48
GEYA GRV8 3 Phase Voltage Protection Relay Phase Sequence Phase Failure Protection Relay 8A 10A
Aliexpress
Free shipping
18% off
$18.43
$22.48
GEYA GRV8 3 Phase Voltage Protection Relay Phase Sequence Phase Failure Protection Relay 8A 10A
Aliexpress
$1,904.36
Type 2 Surge Protective Panel, 480Y/277-Volt AC, 3 Phase WYE, 260Ka Per Phase M3277-YB
Home Depot
Free shipping
$1,904.36
Type 2 Surge Protective Panel, 480Y/277-Volt AC, 3 Phase WYE, 260Ka Per Phase M3277-YB
Home Depot
$187.20
Ditek | DTK-DR480P4 | DIN Rail SPD 277/480Vac 3 Phase WYE, 4 Poles | Power Monitoring And Protection - Surge Protection
Kele
$187.20
Ditek | DTK-DR480P4 | DIN Rail SPD 277/480Vac 3 Phase WYE, 4 Poles | Power Monitoring And Protection - Surge Protection
Kele
$657.04
63 VA 3-Phase Control Transformer - 480V X 460V X 380V X 220V Delta Primary - 220V X 110V Delta Seco
Larson Electronics
$657.04
63 VA 3-Phase Control Transformer - 480V X 460V X 380V X 220V Delta Primary - 220V X 110V Delta Seco
Larson Electronics
$142.50
Intermatic AG2083C3 120/208 VAC Three Phase Surge Protection Device, Black
Amazon.com
4
Free shipping
$142.50
Intermatic AG2083C3 120/208 VAC Three Phase Surge Protection Device, Black
Amazon.com
$184.78
ICM Controls ICM530 3-Phase Surge Protective Device For 240VAC
Jackson Systems & Supply
2
$184.78
ICM Controls ICM530 3-Phase Surge Protective Device For 240VAC
Jackson Systems & Supply
$129.93
GLOBAL, Three Phase Surge Protective Device, Model DTK-4803CMXPLUS, None, Surge Protection For 480VAC Delta Systems, Industrial Use
Voomi Supply
$129.93
GLOBAL, Three Phase Surge Protective Device, Model DTK-4803CMXPLUS, None, Surge Protection For 480VAC Delta Systems, Industrial Use
Voomi Supply
$46.60
Supco TPMPU Univ 3 Phase Motor Protector | Supplyhouse.Com
SupplyHouse.com
$46.60
Supco TPMPU Univ 3 Phase Motor Protector | Supplyhouse.Com
SupplyHouse.com
$1,834.18
Ditek D200M-277/4803Y | Modular Surge Protective Device 277/480 VAC, 3 Phase Wye
AllDataResource.com
$1,834.18
Ditek D200M-277/4803Y | Modular Surge Protective Device 277/480 VAC, 3 Phase Wye
AllDataResource.com
$858.89
$1,111.51
ICM Controls 3VMS Volt Monitor & Surge Protector 3 Phase | Furnace Part Source
FurnacePartSource.com
5
22% off
$858.89
$1,111.51
ICM Controls 3VMS Volt Monitor & Surge Protector 3 Phase | Furnace Part Source
FurnacePartSource.com
$167.00
Ditek D50-120/2083Y 50Ka/Phase, 25 Ka Mode Surge Protector, 120/208VAC Three Phase Wye
JMAC
$167.00
Ditek D50-120/2083Y 50Ka/Phase, 25 Ka Mode Surge Protector, 120/208VAC Three Phase Wye
JMAC
$401.38
Ditek D100-120/2083Y 100Ka/Phase, 50Ka Mode Surge Protector, 120/208VAC Three Phase Wye
JMAC
$401.38
Ditek D100-120/2083Y 100Ka/Phase, 50Ka Mode Surge Protector, 120/208VAC Three Phase Wye
JMAC
$4,295.50
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$4,295.50
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$262.38
Diversitech DTP-3 Digital 3-Phase Motor Protector 1-1/4 in. 3-Port
Voomi Supply
$262.38
Diversitech DTP-3 Digital 3-Phase Motor Protector 1-1/4 in. 3-Port
Voomi Supply
$12,233.82
T3793143S Encapsulated Transformers 115C Rise Three Phase 60 Hz 480 Delta Primary Volts 208Y/120
MRO Supply MC
Free shipping
$12,233.82
T3793143S Encapsulated Transformers 115C Rise Three Phase 60 Hz 480 Delta Primary Volts 208Y/120
MRO Supply MC
$4,080.00
HPS SG3A0015PK0C D16 SNTL-G 3 Phase 15Kva 600D-480Y/277V Copper 60Hz 150C 3R
MRO Supply MC
Free shipping
$4,080.00
HPS SG3A0015PK0C D16 SNTL-G 3 Phase 15Kva 600D-480Y/277V Copper 60Hz 150C 3R
MRO Supply MC
$564.71
Type 1 Surge Protective Panel, 480Y/277 VAC, 3 Phase WYE, 50Ka Per Phase
Home Depot
1
Free shipping
$564.71
Type 1 Surge Protective Panel, 480Y/277 VAC, 3 Phase WYE, 50Ka Per Phase
Home Depot
$1,264.75
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$1,264.75
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$3,220.04
Acme T353311SS 316 Stainless Steel Encapsulated Transformers 115 C Rise Three Phase 60 Hz 480 Delta Primary Mrosupply
MRO Supply MC
Free shipping
$3,220.04
Acme T353311SS 316 Stainless Steel Encapsulated Transformers 115 C Rise Three Phase 60 Hz 480 Delta Primary Mrosupply
MRO Supply MC
$70.09
Ditek DTK-4803CMXPLUS 3 Phase Surge Protective Device (480V) | Supplyhouse.Com
SupplyHouse.com
2
$70.09
Ditek DTK-4803CMXPLUS 3 Phase Surge Protective Device (480V) | Supplyhouse.Com
SupplyHouse.com
$5,737.80
HPS TE3A0040NJM NRC18 DIT 3 Phase 40Kva 575D-460Y/266V Copper 60Hz 3R
MRO Supply MC
Free shipping
$5,737.80
HPS TE3A0040NJM NRC18 DIT 3 Phase 40Kva 575D-460Y/266V Copper 60Hz 3R
MRO Supply MC
$7,730.00
HPS TE3A0075NGM NRC18 DIT 3 Phase 75Kva 575D-380Y/220V Copper 60Hz 3R
MRO Supply MC
Free shipping
$7,730.00
HPS TE3A0075NGM NRC18 DIT 3 Phase 75Kva 575D-380Y/220V Copper 60Hz 3R
MRO Supply MC
$3,110.00
Hammond Power Solutions C3F015BKS POTTED 3PH 15KVA 208-480Y/277 Commercial Encapsulated Distribution Transformers Mrosupply
MRO Supply MC
Free shipping
$3,110.00
Hammond Power Solutions C3F015BKS POTTED 3PH 15KVA 208-480Y/277 Commercial Encapsulated Distribution Transformers Mrosupply
MRO Supply MC
$34,230.00
Hammond Power Solutions TE3A0440NGM NRC18 DIT 3 Phase 440Kva 575D-380Y/220V Copper 60Hz 3R Mrosupply
MRO Supply MC
Free shipping
$34,230.00
Hammond Power Solutions TE3A0440NGM NRC18 DIT 3 Phase 440Kva 575D-380Y/220V Copper 60Hz 3R Mrosupply
MRO Supply MC
$2,423.92
$3,550.00
DM027KK - Hammond Power Solutions 27 Kva 3-Phase 480V Delta To 480Y/277V Wye Drive Isolation Transformer
Essential Electric Supply
31% off
$2,423.92
$3,550.00
DM027KK - Hammond Power Solutions 27 Kva 3-Phase 480V Delta To 480Y/277V Wye Drive Isolation Transformer
Essential Electric Supply
$1,445.98
Acme HBL4W100C 100KA Three Phase 120/208 Volts Surge Protective Device Mrosupply
MRO Supply MC
Free shipping
$1,445.98
Acme HBL4W100C 100KA Three Phase 120/208 Volts Surge Protective Device Mrosupply
MRO Supply MC
$2,510.98
Ditek D300M-4803D | Modular Surge Protective Device 480 VAC, 3 Phase Delta
AllDataResource.com
$2,510.98
Ditek D300M-4803D | Modular Surge Protective Device 480 VAC, 3 Phase Delta
AllDataResource.com
Three Phase Transformer Differential Protection Complete Lecture
41:21
Three Phase Transformer Differential Protection Complete L…
858 viewsAug 2, 2020
YouTubePower System Protection
3-Ph Transformer Differential Protection through numerical relays
33:51
Find in video from 04:27Phase and Amplitude Matching
3-Ph Transformer Differential Protection through numerical relays
54K viewsDec 1, 2016
YouTubeelectrical engineerr
three Phase Transformer Protection System
3:02
three Phase Transformer Protection System
5.5K viewsSep 2, 2018
YouTubeMuhammad Ansar
Three Phase Voltage Protector (English) - Installation and Use with parameter settings...
4:33
Three Phase Voltage Protector (English) - Installation and Use wit…
5.3K views11 months ago
YouTubeFunerTube
step by step Differential relay modeling in Simulink | differential relay of transformer in Simulink
16:08
Find in video from 05:00Desiging Differential Protection Scheme
step by step Differential relay modeling in Simulink | differential …
20.2K viewsFeb 2, 2022
YouTubeAdiCloud
How Does a Three-Phase Pad-Mounted Transformer Achieve One-Stop Protection?
0:28
How Does a Three-Phase Pad-Mounted Transformer Achieve On…
4 views2 months ago
YouTubeWINLEY ELECTRIC
Differential Relay modeling in Simulink || Differential Protection of a Transformer in Simulink
9:57
Differential Relay modeling in Simulink || Differential Protection …
8K viewsDec 31, 2021
YouTubeAdiCloud
15:00
Find in video from 02:30Three Phase Transformer Differential Relay Connection
Differential protection in 3 phase transformer || Part-2
7.2K viewsJul 4, 2021
YouTubeInsight Tecs
27:40
Transformer Overcurrent Protection NEC Calculations Explained Simply
34 viewsMar 27, 2025
YouTubeBESA Research
9:45
Three-Phase Transformers Explained | Delta vs Wye Basics
8.6K views3 months ago
YouTubeUtility Design Simplified
6:47
Types of Transformer Protection | Electrology
9.5K viewsFeb 7, 2024
YouTubeElectrology
3:58
How Three Phase Transformers Work – Easy Explanation with Ani…
175 views6 months ago
YouTubeJUSTME & More
3:14
Calculating Transformer OCPD and Conductor Size Correctly
30 views2 months ago
YouTubeBESA Research
24:24
How 3 Phase Transformers Work – why we need them
2M viewsJun 11, 2024
YouTubeThe Engineering Mindset
31:31
Three Phase Transformer: Basics of Three Phase Systems (1)
31.1K viewsJun 2, 2021
YouTubeLearn Electrical Yourself
3:48:58
Unit-04 Three Phase Transformer | One Shot | Electrical Engineering …
9.9K views5 months ago
YouTubeGtech poly
2:23
Transformer Protection Sizing Primary and Secondary Explained
169 views9 months ago
YouTubeBESA Research
16:44
3-Phase Delta Service Ground Fault Explained Simply
200 views1 year ago
YouTubeBESA Research
54:50
Find in video from 03:09Phase Shift Properties
3 Phase Transformers (Full Lecture)
5.8K viewsMay 17, 2024
YouTubeJim Pytel
17:05
Three Phase Power Distribution: Delta Configuration
7.8K views3 months ago
YouTubeUtility Design Simplified
25:44
Simulation of Three Phase Transformer in MATLAB/Simulink
5.2K viewsJan 3, 2023
YouTubeAmr Saleh
36:01
Three-phase Transformer (L-02)Construction- Core Type and S…
924 viewsFeb 14, 2025
YouTubeSVTT Electrical HUB
7:52
Three Phase Current-Voltage Protector Relay Troubleshooting …
7.5K viewsMay 18, 2024
YouTubeEngineer Noman official
0:54
Three Phase Transformer Short Circuit Amperes Calculation
1.1K views10 months ago
YouTubeElectrical Engineering XYZ
14:37
Find in video from 01:43Single Phase and Two Phase Connections
Three Phase Electricity Basics and Calculations electrical engineering
1.7M viewsJan 28, 2019
YouTubeThe Engineering Mindset
6:23
Find in video from 00:55Different Winding Connections of a Three Phase Transformer
3-phase Transformer Connections | Star-to-Star, Delta-to-Delta, Star-t…
112.8K viewsDec 17, 2020
YouTubeElectrical Deck
1:11:35
Find in video from 22:32Phase Shifts in Electromechanical Relays
Transformer Differential Protection: Challenges and Solutions
88.8K viewsSep 28, 2018
YouTubeMegger
18:31
3-phase transformers: delta and star (19 - Electricity Distribution)
63.7K viewsJul 26, 2022
YouTubeAaron Danner
0:31
3-Phase Transformer Explained in 50 Seconds!”
991 views8 months ago
YouTubeFabian electrical services inc
0:49
2550kVA three phase pad mounted transformer
267 views8 months ago
YouTubeDaelim Belefic Transformer
See more videos
Static thumbnail place holder

Short videos

0:28
How Does a Three-Phase Pad-Mounted Transformer …
4 views2 months ago
YouTubeWINLEY ELECTRIC
0:51
💡 Why is a 400V Three-Phase Isolation Transformer esse…
547 views2 months ago
YouTubeLeilang Transformers
1:58
AC Phase Sequence Protector: The Essential 3-…
260 views4 weeks ago
YouTubeBizzle Hedemann
1:20
Leilang Electric 80kVA Three-Phase Isolation Transforme…
163 views2 months ago
YouTubeLeilang Transformers
0:16
PHASE LOSS PROTECTION CIRCUITS FOR THREE-PH…
186 views1 week ago
YouTubedp lectronic 002
0:49
Is it a Three Phase Motor or a Device? Clearing the Confu…
415 views1 month ago
YouTubeVukar Automation
0:44
Transformer to MCCB Wiring Explained | ACB & 3-Phase …
1.3K views2 months ago
YouTubeVoltCraft Labs
0:25
3 Phase Motor Phase Loss Protection Wiring l Interme…
4.2K views2 months ago
YouTubeSam Electric
1:27
How a Grounding Transformer Creates Neutr…
987 views2 months ago
YouTubeElectrology
0:04
Three phase motor protection wiring#DOL star…
1.8K views3 weeks ago
YouTubeHindustan electrical 4410
0:08
three phase⚡ transformer working principle wireman …
1.2K views3 weeks ago
YouTubeWireman Life Style
0:06
20KVA Three Phase Isolation Transformer | Available on …
1.9K views1 month ago
YouTubeVivek Garande
0:53
Three-Phase Transformer Line vs Phase Voltage Expl…
861 views1 month ago
YouTubePLC&5 Technology
0:51
Delta-Star Transformer Power Explained. #electric…
2.4K views2 months ago
YouTubeTOPHEIGHTS ELECTRICIANS, PLC
0:53
This one Trick Save your 3 Phase Motor
89.8K views3 months ago
YouTubeTechnifyi
1:06
consumer services and transformer
275 views2 months ago
YouTubeAslan
0:30
How Does a Transformer Protect Itself During Overlo…
19.8K views2 months ago
YouTubeSnap Study
0:17
How to wire a three-phase current transformer meter#…
2.1K views1 month ago
YouTubedp lectronic 002
0:07
"Three Phase Transformer Connections Explained 🔥 | #…
4.3K views3 months ago
YouTubeThe Engineer
0:16
Proper CT-PT Cable Termination in Three Phas…
5.5K views3 months ago
YouTubeLineman Universe
Static thumbnail place holder

Shop three-phase transformer protection

Sponsored
About our ads
$6,240.25
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 112.5 Kva
Maddox
$6,240.25
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 112.5 Kva
Maddox
$10,380.00
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 225 Kva
Maddox
$10,380.00
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 225 Kva
Maddox
$1,709.75
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 15 Kva | New
Maddox
$1,709.75
3-Phase 480V Delta - 480 Y 277 Isolation Transformer 15 Kva | New
Maddox
$217.62
ICM Controls ICM532 3-Phase Surge Protective Device, 600VAC (Delta) Or 347/600VAC (Wye) | Skip The Warehouse
Skip The Warehouse
$217.62
ICM Controls ICM532 3-Phase Surge Protective Device, 600VAC (Delta) Or 347/600VAC (Wye) | Skip The Warehouse
Skip The Warehouse
$1,556.09
$2,100.00
Y015QTCF3L0U - Hammond Power Solutions 15 Kva 3-Phase Autotransformer NEMA 3R
Essential Electric Supply
25% off
$1,556.09
$2,100.00
Y015QTCF3L0U - Hammond Power Solutions 15 Kva 3-Phase Autotransformer NEMA 3R
Essential Electric Supply
$2,639.25
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$2,639.25
3-Phase Autotransformer 600-480-400-240-208V
Maddox
$77.86
$340.99
Ditek Dtk-4803Cmxplus 3-Phase Surge Protector 480Vac
ktool-sao-feed
2
77% off
$77.86
$340.99
Ditek Dtk-4803Cmxplus 3-Phase Surge Protector 480Vac
ktool-sao-feed
$210.42
ICM Controls ICM531 3-Phase Surge Protective Device For 480VAC (Delta) Or 277/480VAC (Wye) | Supplyhouse.Com
SupplyHouse.com
$210.42
ICM Controls ICM531 3-Phase Surge Protective Device For 480VAC (Delta) Or 277/480VAC (Wye) | Supplyhouse.Com
SupplyHouse.com
$198.06
ICM CONTROLS, Surge Protective Device, 3-Phase, 240VAC/120/208VAC, NEMA 4X Watertight
Voomi Supply
2
$198.06
ICM CONTROLS, Surge Protective Device, 3-Phase, 240VAC/120/208VAC, NEMA 4X Watertight
Voomi Supply
$18.43
$22.48
GEYA GRV8 3 Phase Voltage Protection Relay Phase Sequence Phase Failure Protection Relay 8A 10A
Aliexpress
Free shipping
18% off
$18.43
$22.48
GEYA GRV8 3 Phase Voltage Protection Relay Phase Sequence Phase Failure Protection Relay 8A 10A
Aliexpress
$1,904.36
Type 2 Surge Protective Panel, 480Y/277-Volt AC, 3 Phase WYE, 260Ka Per Phase M3277-YB
Home Depot
Free shipping
$1,904.36
Type 2 Surge Protective Panel, 480Y/277-Volt AC, 3 Phase WYE, 260Ka Per Phase M3277-YB
Home Depot
$187.20
Ditek | DTK-DR480P4 | DIN Rail SPD 277/480Vac 3 Phase WYE, 4 Poles | Power Monitoring And Protection - Surge Protection
Kele
$187.20
Ditek | DTK-DR480P4 | DIN Rail SPD 277/480Vac 3 Phase WYE, 4 Poles | Power Monitoring And Protection - Surge Protection
Kele
$657.04
63 VA 3-Phase Control Transformer - 480V X 460V X 380V X 220V Delta Primary - 220V X 110V Delta Seco
Larson Electronics
$657.04
63 VA 3-Phase Control Transformer - 480V X 460V X 380V X 220V Delta Primary - 220V X 110V Delta Seco
Larson Electronics
$142.50
Intermatic AG2083C3 120/208 VAC Three Phase Surge Protection Device, Black
Amazon.com
4
Free shipping
$142.50
Intermatic AG2083C3 120/208 VAC Three Phase Surge Protection Device, Black
Amazon.com
$184.78
ICM Controls ICM530 3-Phase Surge Protective Device For 240VAC
Jackson Systems & Supply
2
$184.78
ICM Controls ICM530 3-Phase Surge Protective Device For 240VAC
Jackson Systems & Supply
$129.93
GLOBAL, Three Phase Surge Protective Device, Model DTK-4803CMXPLUS, None, Surge Protection For 480VAC Delta Systems, Industrial Use
Voomi Supply
$129.93
GLOBAL, Three Phase Surge Protective Device, Model DTK-4803CMXPLUS, None, Surge Protection For 480VAC Delta Systems, Industrial Use
Voomi Supply
$46.60
Supco TPMPU Univ 3 Phase Motor Protector | Supplyhouse.Com
SupplyHouse.com
$46.60
Supco TPMPU Univ 3 Phase Motor Protector | Supplyhouse.Com
SupplyHouse.com
$1,834.18
Ditek D200M-277/4803Y | Modular Surge Protective Device 277/480 VAC, 3 Phase Wye
AllDataResource.com
$1,834.18
Ditek D200M-277/4803Y | Modular Surge Protective Device 277/480 VAC, 3 Phase Wye
AllDataResource.com