JPS56155404A - Centralized control device for electric power installation - Google Patents

Centralized control device for electric power installation

Info

Publication number
JPS56155404A
JPS56155404A JP5782080A JP5782080A JPS56155404A JP S56155404 A JPS56155404 A JP S56155404A JP 5782080 A JP5782080 A JP 5782080A JP 5782080 A JP5782080 A JP 5782080A JP S56155404 A JPS56155404 A JP S56155404A
Authority
JP
Japan
Prior art keywords
control device
centralized control
electric power
abnormal
power installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5782080A
Other languages
Japanese (ja)
Inventor
Takashi Kato
Kazufumi Ishihata
Yoshihiro Origasa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5782080A priority Critical patent/JPS56155404A/en
Publication of JPS56155404A publication Critical patent/JPS56155404A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

PURPOSE:To rapidly continue the operation of the apparatus to be controlled by operating all the electric power installations in the event of abnormality in a centralized control device or disconnection of control lines. CONSTITUTION:All the control contacts 31-3n of a centralized control device 2 consists of positive contacts. Loads such as lighting, elevators and refrigerating and air conditioning apparatus are controlled by way of interface relays 41-4n. The operation of the contact outputs of the case in which the device 2 is normal is so constituted that when it is on the load apparatus stop and when off the load apparatus run. The abnormal signal is so constituted that when it is on it is normal and when it is off it is abnormal. When the unit 2 is abnormal, all the apparatus are operated.
JP5782080A 1980-05-02 1980-05-02 Centralized control device for electric power installation Pending JPS56155404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5782080A JPS56155404A (en) 1980-05-02 1980-05-02 Centralized control device for electric power installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5782080A JPS56155404A (en) 1980-05-02 1980-05-02 Centralized control device for electric power installation

Publications (1)

Publication Number Publication Date
JPS56155404A true JPS56155404A (en) 1981-12-01

Family

ID=13066550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5782080A Pending JPS56155404A (en) 1980-05-02 1980-05-02 Centralized control device for electric power installation

Country Status (1)

Country Link
JP (1) JPS56155404A (en)

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