Demonstration of shorting a ct shorting block for safe wiring modifications. The screws connecting the conductors are only accessible after the current transformer has been short circuited using the short circuit slider.
Ct installation and wiring explained by continental control systems.
Ct shorting block wiring diagram. 4 pole and 6 pole ct shorting blocks features include. Single phase type ct shorting block ct ratio tap wiring from one individual ct shorting block ground single phase wiring from individual ct to relays instruments etc. Single phase type ct shorting block ct ratio tap wiring from one individual ct shorting block ground single phase wiring from individual ct to relays instruments etc.
Buy 4 pole and 6 pole ct shorting blocks for current transformers from eig. To find out more download the part b price list on. Ground screw connection normally left in place.
Fuse kits to suit these ct blocks are also available nhp has a full range of cts and energy meters to complement your ct test terminal block. Ct shorting blocks are wired such that the negative leads of the current transformers are connected to the same node and tied to ground. Note that a minimum of two screws are needed to short this 1 ct if the full winding is shorted y1 y5 in this case.
Ei 30ct06dr these shorting blocks are designed to be a superior. Ground screw connection normally left in place. Note that a minimum of two screws are needed to short this 1 ct if the full winding is shorted y1 y5 in this case.
With our test disconnect terminal blocks based on tested weidmuller screw connection technology connecting challenges can be resolved clearly and cost effectively. 4 pole block part. Cts with current outputs these cts are internally burdened to produce a safe 0333 vac output voltage therefore shorting blocks are not needed.
Captive hardware finger safe covers din rail mounted safer than traditional shorting blocks easier to install eig offers two options for ct shorting for meter installation. Ct shorting blocks are used to create an intermediate contact point between the meter and load where it is safe to perform wiring alterations. Please see pages 4 9 to 4 10 for the diagram.
Buy 4 pole and 6 pole ct shorting blocks for current transformers from eig. To learn more please visit the schneider electric faq. The manual already have an example of the wiring diagram for dual phase 3 wire and single phase 2 wire.
Before attempting to install cts read the ct installation safety page. Secondary conductors current circuit wiring 4mm2 2voltage circuit wiring 4 mm two types of ct test terminal blocks are available for order. Ei 30ct04dr 6 pole block part.