The Objective of this course is to give Field Teams a ‘hands on’ experience of

solving engineering problems.

Objectives

ATS In/Out door Lights

Tower Lights

Emergency Lights

Fire Device

E.L.C.B. 25A Sockets

ACs

Spares

DISTRIBUTION

PANEL

(D.P)

Mains (WAPDA 03 Φ)

Generator (03 Φ)

Rectifier

10A, 2P

10A/32A 2P (each)

-54V

BatteryBackup

LV

D

DC Supply

(AC Supply)

E.L

.C.B

63A

RF

An

ten

na

M/WAntenna

Microwave IDUBTS Cabinet

10A, 2P

16A, 2P

32A, 2P

32A, 4P

10A, 2P

10A, 2P

Power routes for BTS Site

………… Introduction

………… Equipment Description

………… Installation and Wiring

………… Maintenance and Component Replacement

………… Handling

CONTENTS

WAPDA(Normal Source)

Generator(Standby Source)

Load

ATS

AUTOMATIC TRANSFER SWITCH

D.PATS

Ducting for Power Cables

PM is a schedule duty means to do the work in such a manner that nothing should be pending in order to avoid alarms.

Cable Glands

Circuit Breakers

ATS Components 0

3 1 2

ATS Selection Switch

Magnetic Contactors

Fuses

Timer Delay Relays

3 Phase Monitor (UVR)Indicators

Electromechanically Relay

Interlock UnitAuxiliary Contact Block

Magnetic Contactor Coil

Front Mount

ATS Selection Switch Position

Contacts Status

Mains control (Φ) Gen set control(Φ) Gen Auto Start

OFFInput (1) Output (A1)Input (2) Output (B2)Input (3) Output (C3)

1(Mains)

Input (1) Output (A1)Input (2) Output (B2)Input (3) Output (C3)

2(Auto)

Input (1) Output (A1)Input (2) Output (B2)Input (3) Output (C3)

3(Gen)

Input (1) Output (A1)Input (2) Output (B2)Input (3) Output (C3)

ATS Selection Switch Position:

Four positions;0 = OFF1 = Normal Source2 = Auto Function3 = Emergency

Source

Power Source Availability:Provides LEDs to indicate if a power source is available. LEDs may be Red, Yellow & Blue for 03 phases.

(a) Normal Source (WAPDA) – Available(b) Emergency Source (Generator) – Available

Load Transferred Availability:

Two LEDs for Normal & Emergency Source.

After PMBefore PM

POWER CABLES BEFORE & AFTER PM

Interlock (Mechanical & Electrical)

Gen phase (In)Wapda phase (In)

GenMagneticContactor

WapdaMagneticContactor

N (00)N (0)

NC

NC

Coil Coil

v

v

MCB Order Information

S25 1S C10

Type

Pole

Rated Current

17.5 mm 4 Pole

(see coil voltage selection chart)

Catalog number explanation

A9-30-10-84

Frame size

30 = 3 NO40 = 4 NO22 = 2 NO & 2 NC 10 = 1 NO & 0 NC

01 = 0 NO & 1 NC11 = 1 NO & 1 NC00 = No auxiliary provided

Coil voltage selection chart

Power pole

Coil voltage

Auxiliary contacts

Hz 12 24 48 110 120 125 208 220 240 277 380 415 440 480 500 600

50 81 83 84 84 34 36 80 42 86 86 51 53 55

60 81 83 84 80 85 86 55

SINGLE GENSET ATS

DUAL GENSETS ATS

20

Thank You