| 摘要 |
#CMT# #/CMT# The device has a connection of resistors (5) of an inner surface of an opening (4) and a plane surface of an auxiliary voltage dependent resistor (3) electrically insulated. The auxiliary resistor exhibits height smaller than height of a voltage dependent resistor of an over voltage arrester. A capacitive resistance is larger than a resistance value with a nominal value of an electrical voltage source (1) i.e. high voltage line. A dynamic resistance smaller than a resistance value with an over voltage, and the capacitive resistance exceed response limit of the arrester and the resistor (3). #CMT#USE : #/CMT# Device for testing reliability of a non-linear over voltage arrester. #CMT#ADVANTAGE : #/CMT# The testing device is in simple structure and continuously stays under the operating voltage, thus ensuring continuous protection of the testing device against developed over voltages and safe measuring conditions without disturbing the operability and protection characteristics of the over voltage arrester. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a circuit diagram of a testing device. 1 : Electrical voltage source 2 : Voltage dependent main resistor 3 : Auxiliary voltage dependent resistor 4 : Opening 5 : Resistors 6 : Test circuit. |
