Inflation tankDuring work or equipment maintenance and operation should be separated by obvious signs that the current transformer and voltage transformer secondary windings should be permanent and reliable to protect the earth; In the operation of the current secondary circuit of the transformer, the following safety measures should be taken for the high and low voltage switchgear.
   
   I. Disconnect the current circuit is strictly prohibited
   
   (1) In order to reliably short circuit the secondary coil of the current transformer, you must use short circuit and short course high and low voltage switchgear, and do not use wire winding;
   
   (2) no current transformer and short circuit terminals and wires to carry out any work on it;
   
   (3) In the operation of the transformer secondary circuit work, high and low voltage switchgear should take the following safety measures;
   
   2. Strictly prevent short circuit or grounding
   
   (1) Insulation tools, insulated gloves should be used, high and low voltage switchgear if necessary before the relay protection device stop working;
   
   (2) Connect temporary load, must be equipped with special switches and fuses;
   
   (3) The power test of the secondary circuit to prevent secondary back pressure, high and low voltage switchgear in addition to disconnect the secondary circuit, but should also remove a fuse;
   
   (4) Before the power or voltage test of the secondary circuit, the staff and relevant personnel should be notified on duty and sent to guard the site, check the cycle, and ensure that no one is working in front of the media;
   
   (5) Check the power protection and staff of the secondary circuit, high and low voltage switchgear participants are strictly prohibited from operating on any switch without permission.