TN系统 TN System 一、电力系统有一点直接接地,电气装置的外露可导电部分通过保护线与该接地点相连接。根据中性导体(N)和保护导体(PE)的配置方式,TN系统可分为如下三类: 1 TN-C系统 整个系统的N、PE线是合一的; 2 TN-C-S系统 系统中有一部分线路的N、PE线是合一的; 3 TN-S系统 整个系统的N、PE线是...
isnotconnectedtothegroundingsystemofthepowergrid;the Nindicatesthattheoutershelloftheelectricalequipment isconnectedtotheneutrallineofthesystem. TNsystem:theneutralgroundingofthepowertransformer,the exposedpartoftheequipmentisconnectedwiththeneutral line.
(Tn-c system, tn-s system, tn-c-s system) TN - C system, TN - S system, TN - C - S system According to the current nationa standard low voltage distribution design specification (GB50054) definition, the low-voltage distribution system is divided into three kinds, namely TN, TT, ...
directlygrounded,butisnotconnectedtothegroundingsystem ofthegrid;Nindicatesthattheshelloftheelectrical equipmentisconnectedtothegroundingneutrallineofthe system. TNsystem:powertransformerneutralgrounding,theexternal partoftheequipmentisconnectedtotheneutralline. ...
TN系统,TN... ... ) EPr/ TN net system 网系统 )TN system系统) TN-C system 系统 ... www.dictall.com|基于2个网页 2. 接地点直接电气连接 1865G 6132008... ... D形电极数||number of dees接地点直接电气连接。||TN system部分与电源系统的接地电气上无关。||TT … ...
(Tn-c system, tn-s system, tn-c-s system)TN - C system, TN - S system, TN - C - S system According to the current national standard low voltage distribution design specification (GB50054) definition, the low-voltage distribution system is divided into three kinds, namely TN, TT, IT...
measures to be provided for customer installations, which had been going on for decades, reached a new level of intensity within VKW when a 10 kV double earth fault within the network caused major damage in a, customer installation, which would certainly have been prevented in a TN system. ...
In the TN-S/TT system, one or more points in a network, an electrical system or equipment are connected to earth.
Installing Cables for the TN-C System For the three-phase four-wire model, if the TN-C system is adopted, short-circuit the input N and PE, and connect the input PE and N to terminals on the N bar. Figure 4-49 Short-circuiting the input N and PE Traduction Collections Tél...
(Optional) TN-C System Application If the TN-C system is adopted, short-circuit the input N and PE. Cables are connected in the same way for the 400 kVA UPS, 500 kVA UPS, and 600 kVA UPS. This section describes how to connect cables for the 600 kVA UPS. The following cable ...