GB1382803A - Electrical control units - Google Patents

Electrical control units

Info

Publication number
GB1382803A
GB1382803A GB3831270A GB3831270A GB1382803A GB 1382803 A GB1382803 A GB 1382803A GB 3831270 A GB3831270 A GB 3831270A GB 3831270 A GB3831270 A GB 3831270A GB 1382803 A GB1382803 A GB 1382803A
Authority
GB
United Kingdom
Prior art keywords
contacts
relay
closed
during
periods
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.)
Expired
Application number
GB3831270A
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.)
Creda Electric Ltd
Original Assignee
Creda Electric 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 Creda Electric Ltd filed Critical Creda Electric Ltd
Priority to GB3831270A priority Critical patent/GB1382803A/en
Publication of GB1382803A publication Critical patent/GB1382803A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/007—Adapted for special tariff measuring

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Resistance Heating (AREA)
  • Control Of Temperature (AREA)

Abstract

1382803 Switching systems CREDA ELECTRIC Ltd 5 Nov 1971 [8 Aug 1970] 38312/70 Heading H2H [Also in Division H1] An arrangement for use in an off-peak supply system includes a relay with at least one set of contacts B1 and two energizable operating means 21 and 22 capable of independent energization to operate the contacts B1. The Figure shows a meter 10 complete with a time switch 12 for changing the metering arrangements during off-peak periods and including a relay RL/A having contacts A1 which are closed only during such periods to cause energization of the coil 22 so that contacts B 1 are closed to connect the supply to the load R. During peak periods the contacts B 1 are normally open but a manual switch S 1 can be closed to cause energization of the coil 21 and consequential closure of contacts B1. The relay 21, 22, B1 can be electromagnetic or thermal. In Fig. 2 (not shown) two heater coils influence a single contact carrying bimetal strip.
GB3831270A 1970-08-08 1970-08-08 Electrical control units Expired GB1382803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3831270A GB1382803A (en) 1970-08-08 1970-08-08 Electrical control units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3831270A GB1382803A (en) 1970-08-08 1970-08-08 Electrical control units

Publications (1)

Publication Number Publication Date
GB1382803A true GB1382803A (en) 1975-02-05

Family

ID=10402635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3831270A Expired GB1382803A (en) 1970-08-08 1970-08-08 Electrical control units

Country Status (1)

Country Link
GB (1) GB1382803A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365128A1 (en) * 1976-09-17 1978-04-14 Gen Electric MULTI-TARIFF ELECTRIC ENERGY MEASUREMENT DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365128A1 (en) * 1976-09-17 1978-04-14 Gen Electric MULTI-TARIFF ELECTRIC ENERGY MEASUREMENT DEVICE

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee