Title:
【発明の名称】相確認用補助装置
Document Type and Number:
Japanese Patent JP2931232
Kind Code:
B2
Abstract:
PURPOSE: To enhance the workability by performing a series of works of distribution system, i.e., conduction test, phase matching, measurement of insulation resistance, etc., without switching connection with the cable terminal. CONSTITUTION: The auxiliary phase determination unit comprises cable terminals 2a, 2b, 2c corresponding to a three-phase cable and can be opened/closed through a switch, a shield terminal 2d corresponding to a ground wire or the like, and a part to be lead out to the cable terminal 2b provided on the conduction path connecting between the cable terminal 2a and the shield terminal 2d. A first resistor 21 is inserted between the cable terminals 2a, 2b and a switching diode 23 is connected in parallel therewith such that the cathode comes to the cable terminal 2b side. A second resistor 24 is inserted between the lead-out part to the cable terminal 2b and the shield terminal 2d.
Inventors:
ISHII YUKIO
Application Number:
JP10040195A
Publication Date:
August 09, 1999
Filing Date:
March 31, 1995
Export Citation:
Assignee:
SANEI DENGYO KK
International Classes:
G01R31/02; G01R27/02; G01R29/18; (IPC1-7): G01R31/02; G01R27/02; G01R29/18
Domestic Patent References:
| JP5191913A | ||||
| JP53118750A |
Attorney, Agent or Firm:
Tetsuo Kanemoto (1 person outside)