LSZ Current Transformer na ha_NG: Tashin Kirkiya LSZ

Product Overview

Ring Main Unit C-GIS Three-Phase Na iji three-phase CT na fitila da kwallonsa a cikin shakarun plastic mai zama, yana iya samun primary bushing ko cable ta haɗi a cikin wurin. Yana da muhimmanci don sauyin installation inserts a kasa don fix. Shiga wannan ita ce mai kyau da ke taimaka wajen maimaita current, signal collection da protective relaying a cikin medium voltage power system da bushing ko cable.

Key Features

•  Fully Sealed Epoxy Cast Insulation：Vacuum-cast IP68-rated enclosure allows continuous submersion up to 1 meter underwater. Insulation material meets UL94 V-0 flame retardancy, withstanding -40°C to +120°C thermal cycling and UV aging resistance. Ideal for harsh environments including coastal areas, deserts, and chemical plants.

•  Wide-Range Multi-Tap Configuration：Covers ratios from 50/5 to 4000/5A with four built-in tap windings (e.g., 200/5A, 400/5A, 800/5A, 1600/5A), switchable via pluggable links. Dynamic response ratio of 1:200 maintains linearity from 0.5% rated current to short-circuit current (20kA).

• Ultra-Low Power Consumption & Energy Saving Design：No-load loss ≤0.8VA, load loss ≤0.2VA, reducing energy consumption by 40% compared to conventional CTs. Secondary windings use high-conductivity oxygen-free copper with 30% increased cross-sectional area to minimize heat generation and losses.

•  Fast Transient Response Characteristics：Special magnetic circuit design prevents core saturation under short-circuit 冲击 with remanence coefficient ≤10%. Protection winding response time ≤8ms, providing reliable signals for high-speed protection systems such as differential and distance relays.

Technical Data

• Rated secondary current:  5A,1A

• Power frequency withstand voltage: 3kV

• Rated frequency:  50/60Hz

• Installation site:  Indoor

• Technical standard:  IEC 60044-1 (IEC 61869-1&2)

Specification