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ELECTRICAL SHOCK: Live front parts should such as cables, bushings and other components must be
thoroughly tightened and periodically checked to prevent arcing and overheating.
Clean bushings and terminals before making Connections. Remove dirt, grease or foreign material.
Contamination can cause failure of the bushings. Cables connected to the transformer terminals are to have
sufficientflextoallownormalpadmovementduetogroundfreeze/thawandsettling.Insufficientcableflex
may cause premature failure of the bushings
Ground Connection
The transformer tank must be connected to a permanent, low-resistance ground. If the tank is not solidly
grounded and the transformer is connected to the power distribution system, then the tank should be
regarded as energized. An energized tank is extremely dangerous. Contact with an energized tank can shock,
burn, or cause death.
Daelim transformers are equipped with at least two ground pads (Fig. 1) or two ground bosses (Fig. 2) depending
on transformers size. One in the primary side and the other in the secondary side.
Fig. 1
High Voltage Connection
Diagrams and information supplied on the nameplate must be followed for making connection.
There are two types of typical high voltage connections:
a. Live front transformer connections
Externally/internally clamped porcelain bushings are normally provided for high voltage connection to
padmount transformers, supplied with eyebolt or Spade terminals that are suitable for copper and aluminum
conductors.
b. Dead front transformer connections
Bushing wells or one piece bushings are normally provided for high voltage connection to padmount
transformers, suitable for elbow connections.
No.4 Business Building-2707, China Central Place
Chaoyang District, Beijing-100021, China
北 京 大 林 绿 源 环 保 科 技 有 限 公 司
BEIJING DAELIM GREEN EP TECH CO., LTD.
Fig. 2
Email:info@daelim-electric.com
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