• Your shopping cart is empty!

  • BS 142-4-4.2:1984

BS 142-4-4.2:1984

Electrical protection relays. Requirements for multi-input energizing quantity relays-Specification for directional relays and power relays

BSI Group, 04/30/1984

Publisher: BS

File Format: PDF

$125.00$251.46


Published:30/04/1984

Pages:12

File Size:1 file

Note:This product is unavailable in Ukraine, Russia, Belarus

Specifies the performance requirements for relays with two input energizing quantities, and the parameters whose values are to be declared by the manufacturer. Recommends methods of presenting the characteristics and performance of these relays. Does not apply to impedance relays.

All current amendments available at time of purchase are included with the purchase of this document.

More BS standard pdf

BS QC 790202:1991

BS QC 790202:1991

Specification for harmonized system of quality assessment for electronic components. Semiconductor devices. Integrated circuits. Blank detail specification. Monolithic integrated operational amplifiers

$90.00 $180.34

BS 6200-3.1.1:1991

BS 6200-3.1.1:1991

Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of aluminium-Steel, cast iron, low carbon ferro-chromium and chromium metal: volumetric method

$76.00 $152.40

BS 970-3:1991

BS 970-3:1991

Specification for wrought steels for mechanical and allied engineering purposes-Bright bars for general engineering purposes

$147.00 $294.64

BS 6200-3.11.1:1991

BS 6200-3.11.1:1991

Sampling and analysis of iron, steel and other ferrous metals. Methods of analysis. Determination of cobalt-Steel and cast iron: spectrophotometric method

$76.00 $152.40