参数资料
型号: HTSS372165
厂商: THOMAS BETTS CORP
元件分类: 保险丝
英文描述: ELECTRIC FUSE, 165A, 38000VAC, 25000A (IR), INLINE/HOLDER
文件页数: 1/4页
文件大小: 128K
代理商: HTSS372165
Subject: 38kV Trans-Guard OS Shorty Backup Current-Limiting Fuses
Date: 2/8/09
File: PCUP-09-001_OS
Page: 1
The 38kV Trans-Guard OS Shorty is a backup type current-limiting fuse specifically
designed for use in 26.4-34.5kV distribution and wind farm transformers that have a primary or
secondary delta connection or that feed more than 50% delta connected load. Its ability to significantly
reduce fault energy and its very high interrupting capability provide state-of-the art protection against
today’s ever-increasing available fault currents.
As a back-up type current-limiting fuse (refer to ANSI C37.40 for fuse definitions), the 38kV Trans-
Guard OS Shorty must always be applied in series with a properly-sized low current protective
device. The device typically used with this fuse is a 34.5kV under-oil weak link expulsion fuse. The
expulsion fuse and the current-limiting fuse are each selected to provide fault protection over a certain
range of currents. The expulsion fuse is chosen to clear the low magnitude currents such as those
caused by faults that occur external to the transformer and high impedance faults within the
transformer. Such currents are generally below the minimum interrupting current rating of the current-
limiting fuse. The back-up type current-limiting fuse is selected so as to clear all other currents. In
addition to interrupting the fault currents resulting from low impedance faults within the transformer, the
back-up current-limiting fuse serves the very important function of limiting the amount of energy that is
let through to the source of the fault to a value below the withstand capability of the transformer tank.
By doing this, the current-limiting fuse minimizes the likelihood of disruptive equipment failures (i.e.
transformer tank ruptures, accessories being damaged or broken loose from their mountings, etc.). No
other protective device is available to similarly reduce the risk of disruptive transformer failures.
相关PDF资料
PDF描述
HTV4-012.7999M TCVCXO, CLOCK, 12.7999 MHz, HCMOS OUTPUT
HTV4G-012.7999M TCVCXO, CLOCK, 12.7999 MHz, HCMOS OUTPUT
HTVH5E-06.400MHZ TCVCXO, CLOCK, 6.4 MHz, HCMOS OUTPUT
HTVL6G-50.000MHZ TCVCXO, CLOCK, 50 MHz, HCMOS OUTPUT
HTVL5H-006.40M TCVCXO, CLOCK, 6.4 MHz, HCMOS OUTPUT
相关代理商/技术参数
参数描述
HT-SS380 制造商:Sony 功能描述:HOME THEATER SYSTEM5.1 SYSTEM WITH SPEAKERS 制造商:SONY 功能描述:HOME THEATER SYSTEM 5.1 SYSTEM WITH SPEAKERS
HTSS-5-1106005-7 制造商:TE Connectivity 功能描述:CONN CABLE GLAND PG29 IP68
HTSSOP-16EP 制造商:TI 制造商全称:Texas Instruments 功能描述:LM25575/LM25575-Q1 SIMPLE SWITCHER?? 42V, 1.5A Step-Down Switching Regulator
HTSSOP-24 制造商:TI 制造商全称:Texas Instruments 功能描述:Dual-Port, Differential VDSL2 Line Driver Amplifiers
HTSSOP-A44 制造商:ROHM 制造商全称:Rohm 功能描述:LSI Assembly