Page 46 - Essailec Test Blocks

Voltage transformers application
Closed contact test principle - With 4 poles test plug

Applications
• Measurement on VT's

1. Normal service

1

1.1 ESSAILEC voltage sockets 1.2 The lid is installed on the socket and can
®
allow the simultaneous testing op- be sealed to prevent unauthorized access.
erations of 1 to 4 independent cir- The socket has no mobile contacts
cuits on the same socket. (closed style) (1).
Circuit continuity is permanent,
no possibility of disconnection.
4

1
Normal
service

4. Back to normal service
4

Back to
normal
service

4.1 The plug is removed, and lid is put back in place, 4.2 The lid is put back in place.
signals never stop to flow through the socket.

INDUSTRIAL /// ENTRELEC - ESSAILEC TEST BLOCKS
®