Name: Period: Circuits-Circuit Analysis Base your answers to questions 1 through 3 on the information and diagram below. 4. A 9-volt battery is connected to a 4-ohm resistor and a 5-ohm resistor as shown in the diagram below. A 3.0-ohm resistor‚ an unknown resistor‚ R‚ and two ammeters‚ A1 and A2‚ are connected as shown with a 12-volt source. Ammeter A2 reads a current of 5.0 amperes. What is the current in the 5-ohm resistor? 1. 1.0 A 2. 1.8 A 3. 2.3 A 4. 4.0 A 1. Determine the equivalent
Premium Circuit diagram Electric current Resistor
Investigation of Wireless Measure and Control Methodology for High Voltage Circuit Breaker I. INTRODUCTION The high voltage circuit breaker is the most important device for protection and control in power systems and its safety operation has always been an important requirement to be guaranteed. The working state of high voltage circuit breaker can be evaluating by the condition monitoring and fault diagnosis technology. If the data provided by the condition monitoring proved to be normal‚ the
Premium Circuit breaker Electrical engineering
TABLE OF CONTENT Application Areas 3 Safety Aspects 3 Cold Commissioning (GP - Step 108.4) 4 Check Readiness for Individual Tests (GP - Activity 108.4.1) 4 Perform Individual Tests (GP - Activity 108.4.6) 4 1. Outdoor Circuit Breaker (SF6) 4 2. Outdoor Disconnector 9 3. Current Transformer 11 4. Voltage Transformer 19 5. HV connections 23 6. Power Transformer 26 7. MV Cable 38 8. Substation Earthing Resistance 40 9. Interlockings 44 Hot Commissioning (GP - Step 108.5) 45 Check Readiness
Premium Circuit breaker Transformer Electricity distribution
and Reproduction (e) Harmonic Impedance (b) Load Flow (f) Transient Stability (c) Short Circuit (g) Protection Co-ordination (d) Harmonic Penetration The first two items (a & b) form the heart of the suite which are explored in this assignment. In this assignment‚ a typical power network is constructed and Load Flow Analysis is performed. Short circuit levels and Fault current levels are monitored and compared with those obtained from analytical calculations
Premium Electrical engineering Circuit breaker Electricity distribution
current and voltage to moving if don’t take a protection or neglect transformet can be burn or controlling attendant can be exposed very huge voltage. All electrical systems require some kind of insulation to prevent short circuits and leaking currents. 3 forms of insulators: Solid‚ liquid and gaseous Performance of these insulators depend on the temperature. Classification according to their temperature rating: International Electrotechincal Commission has categories
Premium Transformer Circuit breaker Electrical engineering
Operation and Control of Auxiliary Systems: FUEL/GBC: Safe operation of GBC Check out while starting: • CW System: Ensure that the cooling water pump & at least 04/05 nos fan are in running condition. • Seal Gas Skid: Always Charge gas through gas filters GT-F8102 and fill the system. This prevents dirty gas going to seals. • Always maintain barrier seal pressure @ 0.3to 0.5 atg on OTB side and TB side before start of the Lube oil Pump and during normal operation.
Premium Suction Liquid Pressure
ECE348 Circuit Debugging Tips These guidelines may be useful to you if your circuits are not working as planned: Check the Microcontroller Control Register Settings Sometimes you have to configure multiple control settings before you can enable a pin for a particular purpose (input‚ output‚ A/D conversion‚ etc). Section 2.3.2 of the MCU datasheet describes the control registers related to various ports. Sometimes you may have to look in other parts of the datasheet (for example‚ the A/D section)
Premium Output Input Chess
m / F answer: a The SI unit of time is the second. Express 0.00001 seconds in a suitable sub multiple: a. 10 milliseconds‚ 10 ms b. 100 milliseconds‚ 100 ms c. 100 microseconds‚ 100 us d. 10 microseconds‚ 10 us answer: d In a magnetic circuit the magnetic field strength H is expressed in ampere turns/metre. H is calculated using the formula: a. H = I/nl b. H = nI/l c. H = Il/n d. H = nl/I answer: b The formula used to calculate the resistance (R) of a conductor‚ given its length
Premium Electricity Electric current Electric charge
RAJASTHAN RAJYA VIDYUT PRASARAN NIGAM LTD. (Regd. Office: Vidyut Bhavan‚ Janpath‚ Jyoti Nagar‚ Jaipur–302005) CONSTRUCTION MANUAL FOR SUB STATIONS Last Updated : 31-1-2008 FOREWORD The Engineers experienced in the field of Transmission have made this effort to compile the experience gained over the past 40 years in the form of a Manual and make it available to the Engineers and Technical Supervisors of the Company. This is a step forward to disseminate knowledge so that uniform practices
Premium Orders of magnitude Transformer Circuit breaker
CURRENT PROTECTION FUNCTIONS ANSI 50/51 – Phase over-current ANSI 50N/51N or 50G/51G – Earth fault or sensitive earth fault ANSI 50BF – Breaker failure ANSI 46 -Negative sequence / unbalance ANSI 49RMS – Thermal overload CURRENT PROTECTION FUNCTIONS ANSI 50/51 – PHASE OVERCURRENT Three-phase protection against overloads and phase-to-phase short-circuits. ANSI 50N/51N OR 50G/51G – EARTH FAULT Earth fault protection based on measured or calculated residual current values: ANSI 50N/51N:
Premium Circuit breaker Electric motor Earth