Additional Accessories - Fluke 1625-2 User Manual

1625-2
Users Manual

Additional Accessories

An external current transformer is available as an option, see Figure 1. The
transformer has a transformation ratio between 80 and 1200:1 for the measurement of a
single branch in mesh-operated earthing systems. This enables the user to measure on
high voltage pylons without separating the overhead earth wires or earth strips at the
bottom of the pylons. It is also used to measure lightning protection systems without
separating the individual lightning protection wires.
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6
Figure 1. External Current Transformer EI-162BN
Transformer half (2)
Transformer end faces have bolts that pivot to aid in separating the Transformer
halves. One Transformer end face has a slotted bolt hole that allows the bolt to
pivot out of the end face.
Transformation ratio connections: ⊥, 200, 500, and 1000
Fastener (2)
1
3
2
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