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WorksheetsIntro to Substation
Total questions: 26
Worksheet time: 13mins
What does SCADA stands for:
Supervision Center and Data Association
Supervisory Control and Digital Association
Supervision Control and Digital Acquisition
Supervisory Control and Data Acquisition
In a basic SCADA system, which component is the interface between Field Devices and Control Center:
FIELD DEVICE
CONTROLLER
HMI
None of the above
What does RTU stands for:
Remote Terminal Unit
Relay Terminal Unit
Remote Termination Unit
Relay Termination Unit
In a basic SCADA system, which component provides operators real-time view of the remote devices:
FIELD DEVICE
CONTROLLER
HMI
None of the above
Identify SCADA Component item number 5 in the below diagram:
UPS
Remote Terminal Unit
Control Center
Identify SCADA Component item number 6 in the below diagram:
Digital Output Module
Analog Module
Digital Input Module
This bus configuration consists of two main buses, both normally energized. Ele
ctrically connected between the buses are two breakers, and between these two
breakers is a termination.
Ring Bus
Single Bus
Breaker and a Half
Double Breaker – Double Bus
This bus configuration consists of two main buses, both normally energized. Electrically connected between the buses are three circuit breakers, and between each two breakers is a termination (middle breaker is shared by the two terminations).
Ring Bus
Single Bus
Breaker and a Half
Double Breaker – Double Bus
What type of bus configuration does the diagram show?
Ring Bus
Single Bus
Breaker and a Half
Double Breaker – Double Bus
The following are advantages of double breaker – double bus, which one is NOT?
Isolation of either main bus for maintenance without disrupting service
Isolation of any circuit breaker for maintenance without disrupting service
Two circuit breakers are required for each circuit
No interruption of service to any circuits from bus fault
The following are the advantages of single bus, which one is NOT?
Easily expandable
Simple in concept and operation
Relatively simple for the application of protective relaying
Failure of a circuit breaker or a bus fault causes loss of the entire substation
What type of bus configuration does the diagram below show?
Ring Bus
Single Bus
Breaker and a Half
Double Breaker –Double Bus
What component of substation is the arrow pointing to in figure 1?
115 kV Power Circuit Breaker
96 kV Surge Arrester
115 kV Disconnect Switch
115 kV Potential Transformer
In equipment number 61MAK4, 6 stands for
Substation designation
Bay breaker
Position type
System Voltage
In a breaker-and-a-half configuration, the circuit breaker connected to bus 1 shall be given the suffix number ____.
2
24
8
4
In a breaker-and-a-half configuration, the circuit breaker connected to bus 2 shall be given the suffix number ____.
2
24
8
4
A relay that functions when the circuit admittance, impedance, or reactance increases or decreases beyond predetermined limits.
Instantaneous Overcurrent Relay
Distance Relay
Overvoltage Relay
Directional Power Relay
A device that is used to close and interrupt an AC power circuit under normal conditions or to interrupt this circuit under fault or emergency conditions.
AC Circuit Breaker
Differential Protective Relay
Reclosing Relay
Distance Relay
If there's a fault (F1) at Line 2 (L2), B8 and B9 will be tripped by Main Protection. If B9 fails, which breaker/s should be tripped by Local Back Up Protection?
B8 & B7
B8
B6 & B3
B6
What does GIS stands for?
Geographic Isolation System
Gas Insulated Switchgear
Gas Insulated System
Graphic Input System
A device that is operated or restrained by a signal transmitted or received via any communications media used for relaying
Carrier or Pilot-Wire Relay
Lockout Relay
Pressure Switch
Undervoltage Relay
Regions of power system that can be protected adequately with fault recognition and removal resulting in isolation of a minimum amount of equipment
Protective Relaying
Zone of Protection
Primary Protection
Back-Up Protection
True or False: Zones of protection must overlap to prevent any system element
from being unprotected.
TRUE
FALSE
What is the protection requirement for Sub-transmission Line with less than 4km distance?
Main 1: 87L
Main 2: 87L
Main 1: 21
Main 2: 67
Main 1: 87L
Main 2: 21
Main 1: 21
Main 2: 21
Which of the following is NOT a part of Protection and Controls Design Drawings?
Single Line Diagram
Technical Data Sheet
Transformer Accessory Wiring Diagram
Control and Protection Room Panel Arrangement
Rank the following zone of protections from 1-5 based:
1. Transformer Protection
2. Generator Protection
3. Feeder Protection
4. Sub-Transmission Line Protection
5. Bus Protection
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