BuyLog Flippingbook FEB 2025

TRANSFORMERS - LOW VOLTAGE, DRY TYPE, BUYLOG SECTION 5

5-16

— Noise isolation — Guard I™ Product overview

Features • Grounded full width copper electrostatic shield between primary and secondary windings • Up to 120 dB common mode noise attenuation • Up to 30 dB transverse mode noise attenuation • Rain shields available for field installation converting the enclosure to NEMA 3R • NEMA 3R stainless steel (316) available through 150 kVA 150° C rise

Guard I ™ noise isolation transformers provide common mode noise reduction between neutral and ground and provides transverse mode noise reduction between the primary and secondary coils. Common causes of electrical noise are electromagnetic interference, radio frequency interference and ground loops.

— Guard I™ Transformer Shown with optional rain shield