No.4 Business Building-2707, China Central Place
Chaoyang District, Beijing-100021, China
Email:[email protected]
北 京 大 林 绿 源 环 保 科 技 有 限 公 司
BEIJING DAELIM GREEN EP TECH CO., LTD.
6. Switching and Protection Devices
ELECTRICAL SHOCK:
Can cause severe injury, death, or damage to equipment. De-energize transformer
Fromaremoteupstreamsourcebeforeoperatingno-loadtap-changers,dual-voltageswitches,or
Delta-wye switches.
6.1 Tap Changers
ExternallyoperatedNo-LoadTapchanger(NLTC)(Fig.14A&B)isprovidedforalltransformers,unless
otherwise specified, to change from one operating voltage to another. Typical taps are configured at ±2 X 2.5%
ofratedvoltage;thismeansthattheoutputvoltage ofthetransformercanbeadjustedin 2.5%increments
Tap-changers will have a hot stick operable handle. There are two styles of tap-changer with this type of
handle, each requiring a slightly different method for changing tap settings
.
Please refer to Name Plate and other supplied information for more details.
Fig. 14A
Fig. 14B