Siemens EF 73E Series - Manuals

Page 4 - 6BC Phase Unbalance/Broken Conductor; Fig 2. IEC Overcurrent Curves; Fig 3. ANSI Overcurrent Curves; Description of Functionality

Siemens Protection Devices Limited 4 46BC Phase Unbalance/Broken Conductor Element has settings for pickup level and DTL delay. With the circuit breaker closed, if the NPS:PPS current ratio is above setting this could be due to a broken conductor. 50BF Circuit Breaker Fail The circuit breaker fail f...

Page 5 - Serial Communications

60CTS CT Supervision The relay monitors each phase current input and operates if any one or two inputs fall below the setting. The element types have user operate and delay settings. 64H Restricted Earth Fault The measured earth fault input may be used in a 64H high impedance restricted earth fault ...

Page 6 - Reydisp Evolution

Reydisp Evolution is a Windows based software tool, providing the means for the user to apply settings, interrogate settings and retrieve events and disturbance waveforms from the device and is common to the entire range of Reyrolle protection relays. Fig 5. Typical Reydisp Evolution Screenshot Lang...

Page 7 - Fig 8. Rear view of relay; Construction; LCD

The relay is housed in a 4U high size E4 case with a removable clear plastic fascia cover. The plastic fascia cover can be ordered with or without two push buttons. to allow the user to view the settings and instruments without removing the cover. Two plastic handles are provided to allow the relay ...

Page 8 - Technical Data

For full technical data refer to the Performance Specification Section of the Technical Manual. Current Inputs Quantity 3 x Phase & 1 x Earth Rated Current IN 1/5A Measuring Range 80 x In Instrumentation ≥ 0.1xIn ±1% In Frequency 50/60Hz Thermal Withstand: Continuous 10 Minutes 2 Minutes 1 Secon...

Page 10 - Climatic Tests; 0BF Circuit Breaker Fail; Performance

Siemens Protection Devices Limited 10 Climatic Tests 50BF Circuit Breaker Fail Operation Current check - Phase and Measured Earth with independent settings Mechanical Trip CB Faulty Monitor Setting Range Is 0.05,0.055…2.0 x In 2 Stage Time Delays Timer 1 20…60000ms Timer 2 20…60000ms Operate Level 1...

Page 11 - Case Dimensions; Fig 10. E4 Case Dimensions

Case Dimensions Fig 10. E4 Case Dimensions Siemens Protection Devices Limited 11

Page 12 - SR11 Connection Diagram

7SR11 Connection Diagram RS48 5 Fig 11. Diagram showing 7SR1102 relay with 4 CT inputs, 3 binary inputs and 5 binary outputs. Siemens Protection Devices Limited 12

Page 13 - Ordering Information

Siemens Protection Devices Limited 13 Ordering Information Product description Variants Order No. Nondirectional O/C Relay 7 S R 1 1 0 2 - 1 □ A 1 2 - □ A A 0 ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ Overcurrent – Non Directional 1 | | | | | | | | | | | | | | | | Case I/O and Fascia | | | | | | | | E4 case, 4 CT, 3 Binary...