Simulasi Sistem Tenaga ListrikDay 1

Oleh:

Yohan Fajar Sidik

Materi

1. Pendahuluan

2. One-line diagram

3. Load Flow

4. Short Circuit

5. Starting Motor

6. Harmonic Analysis

7. Transient Stability

8. Protection

Introduction

• Why Etap ?

Let’s start!

1. Click ETAP on your desktop

2. File – New Project

Type “Your Name here”

Worksheet

Project View One-Line Diagram

Menu BarProject Toolbar

Select Mode

AC Elements

Our Case!The Equipments:

1. Utilities

2. Bus

3. Trafo 5 MVA and 0.5 MVA

4. Cable 100 ft

5. Motor 206 HP and175 HP

6. Static Load 0.193 MVA

Parameter

• Power Grid

– ID: PLN

– Rated kV: 20

– MVAsc=100

– X/R=20

• 2-winding transformer (a)

– Prim: 20

– Sec: 6.6

– 5 MVA

– Impedance : click typical X/R and %Z

POWER GRID

TRANSFORMER

Typical X/R Ratios for Transformer

Parameter – cont’d

• Cable: – Units: 100 ft

– Click library: • Frequency: 50

• Size: 6

• Induction Machine (a)– HP: 206

– kV: 6.6

– %PF: 78

– %Eff: 87

POWER GRID

TRANSFORMER

INDUCTION MACHINE

CABLE

Parameter – cont’d

• 2-winding transformer (b)– Prim: 6.6

– Sec: 0.4

– MVA: 0.5

– Typical X/R and %Z

• Induction Machine (b)– HP: 174.93

– kV: 0.4

– %PF: 79.87

– %Eff: 87

Parameter – cont’d

• Static Load

– kV: 0.4

– MVA: 0.193

– %PF: 93.37

POWER GRID

TRANSFORMER

INDUCTION MACHINE

CABLE

STATIC LOAD