Eaton Circuit Breakers (Cont.’d)

& Eaton Type Tested Assembly (X-Energy) Technical Training

Prepared by: Eng. Ahmed Lotfy

(BO Technical Director and Factory Manager)

Barkouky Organization (BO) (EATON) SYSTEM INTEGRATOR - EGYPT

Circuit Breakers and (TTA) X-Energy

Technical Training

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Training Contents: 1. Eaton LV MCCB’s : Types and Selection 1.1: NZM & LZM (What is the difference?) 1.2: Circuit-Breaker or Switch Disconnector? 1.3: Switching Capacity at 415 VAC 1.4: Key to Type References 1.5: Samples of the Trip Units

2. Eaton Type Tested Assembly (TTA) X-Energy 2.1: Type Tests 2.2: Routine Tests 2.3: An Intelligent System from Eaton (5 Basic Types) 2.4: XP Power Section

Circuit Breakers and (TTA) X-Energy

Technical Training

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1. Eaton LV MCCB’s : Types and Selection

Circuit Breakers and (TTA) X-Energy

Technical Training

٤ Circuit Breakers and (TTA) X-Energy

Technical Training

IEC Range Approvals –NZM

٥ Circuit Breakers and (TTA) X-Energy

Technical Training

IEC Range Approvals –LZM

٦ Circuit Breakers and (TTA) X-Energy

Technical Training

NZM PN N

Breaker or Switch Disconnector-Circuit

۷ Circuit Breakers and (TTA) X-Energy

Technical Training

25 kA

50 kA

100 kA

150 kA

36 kA

B

1 / 2

C

1 / 2 / 3

N

1 / 2 3 / 4

VAC415 Switching Capacity at

H

1 / 4

2 / 3

۸ Circuit Breakers and (TTA) X-Energy

Technical Training

Frame size: 1 - up to 160A 2 - up to 300A 3 - up to 630A 4 - up to 1600A

Switching capacity: B - Basic 25kA 415 V C - Comfort 36kA N - Normal 50kA H - High 150 / 100 / 85kA

Designation: NZM - Circuit-breaker N - Switch-disconnector, with release function PN - Switch-disconnector, without release funct.

NZM B 2 - 4 -A 200

Key to Type References

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Trip release: A - distribution circuit protect., thermomagnetic AE - distribution circuit protection, electronic M - motor protection, thermomagnetic ME - motor protection, electronic S - motor protection without overload release VE - selective (discriminitive) and generator protection, electronic

Rated uninterrupted current: 20A to 1600A

Circuit Breakers and (TTA) X-Energy

Technical Training

Number of poles: - - 3-pole -4- - 4-pole

NZM B 2 - 4 -A 200

Key to Type References (Cont.’d)

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Ir = 0,8...1 x In

Ii = 6...10 x In

Ir = 0,5...1 x In

Ii = 2...12 x In

Trip Unit type (A) distribution circuit protection

Thermo-Magnetic (TM)

Trip Unit type (AE) distribution circuit protection

Electronic

Circuit Breakers and (TTA) X-Energy

Technical Training

Samples of the Trip Units

۱۱

Ir = 0,8...1 x In

Ii = 8...14 x In

Ir = 0,5...1 x In

Ii = 2...14 x In

tr = 2...20s

Trip Unit type (M) Motor protection

Thermo-Magnetic (TM)

Trip Unit type (ME) Motor protection

Electronic

Circuit Breakers and (TTA) X-Energy

Technical Training

۱۲

overload Ir

0,5 – 1,0

adjustable delayed

short-circuit release: Isd 2- 10

non-delayed

short-circuit release : Ii 2- 12

adjustable time-lag class (heavy starting) tr 2 – 20 sec

Infinite ( without bimetal )

adjustable delay time tsd 0 – 1000 ms

switchable I2t constant function

I²t : on or off

Selective Electronic Release type (VE)

Circuit Breakers and (TTA) X-Energy

Technical Training

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2. Eaton Type Tested Assembly (TTA) X-Energy

Circuit Breakers and (TTA) X-Energy

Technical Training

۱٤ Circuit Breakers and (TTA) X-Energy

Technical Training

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Type Tests Type tests are intended to verify compliance with the requirements of IEC 60439-1 Type tests will be carried out on a sample of such an ASSEMBLY or on such parts of ASSEMBLIES manufactured to the same or a similar design. They shall be carried out on the initiative of the manufacturer.

1. Verification of the temperature-rise limits

2. Verification of dielectric properties

3. Verification of the short-circuit withstand strength

4. Verification of the effectiveness of the protective

circuit

5. Verification of clearances and creepage distances

6. Verification of mechanical operation

7. Verification of degree of protection

Circuit Breakers and (TTA) X-Energy

Technical Training

۱٦

Routine Tests Routine tests are intended to detect faults in materials and workmanship. They are carried out on every new ASSEMBLY after it has been assembled or on each transport unit. Another routine test at the place of installation is not required. Routine tests include: 1. Inspection of the ASSEMBLY including inspection of wiring and, if necessary, electrical operation test.

2. Dielectric test

3. Checking of protective measures and of the electrical continuity of the protective circuit

Circuit Breakers and (TTA) X-Energy

Technical Training

۱۷

An Intelligent System from Eaton

XP Power sections

XG section

Fixed

Withdrawable

XF Outgoing sections

5 Basic types

XW Outgoing sections XR Outgoing sections

Removable

New

General

Circuit Breakers and (TTA) X-Energy

Technical Training

۱۸

• XP Power Section

IZMX16 630 - 1600A

IZM20 800 - 2000A

IZM32 800 - 3200A

IZM40 4000A

IZM63 4000 - 5000A

Circuit Breakers and (TTA) X-Energy

Technical Training

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• XP Power Section (Cont.‘d) Feeders / Outgoers / Connections

Compact Circuit Breaker • 3 or 4-pole • Fixed • Withdrawable

NZM3 125 - 630A

Circuit Breakers and (TTA) X-Energy

Technical Training

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End of Training for Today (DEC.,17,2014) …..

Thanks for your attention… Eng. Ahmed Lotfy

(BO Technical Director and Factory Manager)

Circuit Breakers and (TTA) X-Energy

Technical Training