❓ CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
📖 More: https://duomatech.com/ljw1-35-ljwd1-35kv-oil-immersed-current-transformers/
📜 JSJW-3/6/10 Three-Phase Oil-Immersed Voltage Transformers (3–10kV) — IEC 61869 Certified
Full compliance with international standards. ISO 9001 quality management. Type-tested by independent laboratories.
Interoperability, safety, and quality assurance.
📖 Certificates: https://duomatech.com/jsjw-3-6-10-three-phase-oil-immersed-voltage-transformers-3-10kv/
#CurrentTransformer #IECStandard #Quality #Duomatech #ElectricalEngineering
📜 JSJW-3/6/10 Three-Phase Oil-Immersed Voltage Transformers (3–10kV) — IEC 61869 Certified
Full compliance with international standards. ISO 9001 quality management. Type-tested by independent laboratories.
Interoperability, safety, and quality assurance.
📖 Certificates: https://duomatech.com/jsjw-3-6-10-three-phase-oil-immersed-voltage-transformers-3-10kv/
#CurrentTransformer #IECStandard #Quality #Duomatech #ElectricalEngineering
❓ CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
📖 More: https://duomatech.com/jdz9-10-jdzxf9-10g-indoor-single-phase-epoxy-resin-voltage-transformer/
❓ CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
📖 More: https://duomatech.com/jdz9-10-jdzxf9-10g-indoor-single-phase-epoxy-resin-voltage-transformer/
⚡ BH-0.66 II Current Transformer | 0.66kV Indoor Window-Type CT
The BH-0.66 II indoor plastic case current transformer is a window-type low-voltage current transformer designed for current measurement, electrical m
• Product name: Indoor Plastic Case Current Transformer
• Model series: BH-0.66 II / BH(SDH)-0.66 II
• Product structure: Window-type / through-core current transformer
❓ CT Questions?
Q: Accuracy class? A: 0.2S/0.5 for billing. 5P/10P for relays.
Q: Open secondary? A: NEVER. Voltage >1000V. Dangerous.
Q: Recalibration? A: Every 5-10 years for metering.
📖 More: https://duomatech.com/ljwd-10-12-oil-immersed-current-transformer-with-steel-tank-outdoor-3/
⚡ AKH-0.66/23/58/88/812/816 Split-Core CT | 0.66kV 5A Metering | GB1208 IEC60044
The AKH-0.66 series split-core current transformers are precision electromagnetic instruments designed for accurate current measurement, energy meteri
• System voltage class: 0.66 kV class (low-voltage distribution applications)
• Rated frequency: 50 Hz
• Rated secondary current: 5 A
👉 https://duomatech.com/akh-0-66-split-core-current-transformer-low-voltage-metering/
“Ever since I started taking your class, I’ve enjoyed learning about electricity!” For Christian Lafforgue, named best teacher in the electrical engineering section for 2025, that’s the “coolest compliment” he’s gotten as a teacher.
Scientist in the Photonic Systems Laboratory, he knows only too well how a professor can influence a student’s academic decisions. He believes that a good teacher is one with a keen sense of humanity.
Read more: https://actu.epfl.ch/news/the-knowledge-is-thereit-takes-humans-to-put-it-in/
Christian Lafforgue knows only too well how a professor can influence a student’s academic decisions. He believes that a good teacher is one with a keen sense of humanity. He was named best teacher in the electrical engineering section for 2025.
thomaselectric
Harvey Sandstrom
EPFL