للمحاضر م/ علاء ابراهيم Low Voltage Panels محاضرة

1. L.V Technical Data

2. Outline
 Introduction about LV SWG.
 Alfanar LV products.
 Alfanar Terasaki.
 Alfanar’s Approvals.

4. Introduction for LV electrical characteristics
Circuit-breakers:
Disconnect and connect the power and provide protection for
cable, load and human against overload and overcurrent.
The following are the type of the CB:
MCB, RCCB, RCBO, MCCB, ICCB, ELCP, MCP, Power circuit and ACB.
Rated operational current (In, Ie):
Continuous current Without overheating
Rated operational voltage (Ue):
This is the voltage at which the equipment has been designed to
operate, in normal (undisturbed) conditions

5. Rated insulation voltage (Ui) for Circuit-breakers:
This is the value of voltage to which the dielectric tests voltage
and Creepage distances are referred too. The Ue ≤ Ui
Rated impulse-withstand voltage (Uimp) for Circuit-breakers:
This characteristic expresses, in kV peak, the value of voltage
which the equipment is capable of withstanding without failure,
under test conditions. Generally, for industrial circuit-breakers,
Uimp=8kV and for domestic types, Uimp=6kV, and in special cases
could be 12KV
Rated ultimate short-circuit breaking capacity (Icu):
The maximum current, that can be broken across the contacts,
twice times without being damage.
Introduction for LV electrical characteristics

6. Rated service short-circuit breaking capacity (Ics):
The maximum current, that can be broken across the contacts, without being
damage.
Rated short-time withstand current rating (Icw):
Is the maximum current, that the B category CB can withstand, thermally and
electro dynamically, without sustaining damage, for a period of time given by the
manufacturer.
Category A:
For which there is no calibrate delay in the operation of the “instantaneous” short-
circuit magnetic tripping device.
Category B:
For which, in order to discriminate with other circuit-breakers on a time basis, it is
possible to delay the tripping of the CB, where the fault-current level is lower than,
that of the short-time withstand current rating (Icw) of the CB.
Introduction for LV electrical characteristics

7. Co-ordination study:
 Discrimination/Selectivity:
Is the Co-ordination of protective device such that a fault is
cleared by the protective device installed immediately
upstream of the fault, and by that device alone.
 Total Discrimination:
Discrimination is said to be total if the downstream circuit
breaker opens and the upstream circuit breaker remains
closed. This ensure maximum availability of the system.
 Partial Discrimination:
Discrimination is partial if the above condition is not fulfilled
up to the prospective short-circuit current, but to lesser
value, above this value both circuit breakers could open,
resulting in loss selectivity.
 Cascading/Backup:
Is a technique where the current limiting capability of
upstream circuit breakers is used to permit the installation
of lower circuit breakers downstream.
Introduction for LV electrical characteristics

8. Introduction for LV electrical characteristics
 Discrimination/Selectivity:
 Cascading/Backup:

9. Introduction for LV Mechanical characteristics
Ingrees of Protection (IP X X):
Standard IEC 60529 (February 2001) indicates the degree of protection
provided by electrical equipment enclosures against accidental direct contact
with live parts and against the ingress of solid foreign objects or water.

10. IK Code “Mechanical Impact test:
The European standard EN 50102 dated March 1995 defines a coding system
(IK code) for indicating the degree of protection provided by electrical equipment
enclosures against external mechanical impact.
Introduction for LV Mechanical characteristics

11. Separation Forms:
Introduction for LV Mechanical characteristics

12. Form IEC standard definition Specific recommendations
1 No Internal separation Protection over busbar for customer
safety
2a Separation of busbars from the functional units Terminals not separated from busbars
2b Separation of busbars from the functional units Terminals separated from busbars
3a Separation of busbars from the functional units
and of all functional units from each other.
Terminals not separated from busbars
3b Separation of busbars from the functional units
and of all functional units from each other.
Terminals separated from busbars
4a Separation of busbars from the functional units
and of all functional units from each other, also
separation of terminals from any functional unit
Terminals in the same compartment
as associated functional units.
4b Separation of busbars from the functional units
and of all functional units from each other, also
separation of terminals from any functional unit
Terminals are not in the same
compartment as the associated
functional units
Introduction for LV Mechanical characteristics

13. IEC 61439:
Is a series of standard IEC 60439
 Fundamental change:
• The categories of TTA (Type Tested Assemblies) and PTTA (Partially
Type Tested Assemblies) have been discarded in favor of a design.
• The performance of assemblies is now determined by a “Design
Verification”.
IEC 61439 Vs IEC 60439:

14. Arc Flash protection:
International standards (IEC / ANSI) guidelines are
different but the objectives are the same,
i.e. defining minimum safety level for operators
 Assessment criteria for the internal arc test:
• Correctly secured doors, covers, etc. do not open.
• Parts of the assembly (which may cause a hazard) do
not fly off.
• Arcing does not cause holes in the external parts of
the enclosure.
• Indicators do not ignite (made from black cretonne).
• The protective circuit is still operational.
• The arc is to be confined in the same area where it
was ignited.
If these criteria are achieved by the panel, then the
test is a success.
Arc Flash protection:

15. Seismic :
Proper mounting of the equipment is the
single most important factor in
withstanding a seismic event.
The foundation must be level and
continuous under the entire assembly. The
foundation must be designed to withstand
the reaction loads imposed on it by the
equipment during a seismic event.
Earth quake protection (Seismic):

16. Product Portfolio :
 Main Distribution Switchboards
 ATS, Synch, 2 out of 3
 Motor Control Center (MCC)
 Control Panels & Panel Boards
 Power Factor Correction Capacitors (PFC)
 Switch rack
 ICP
alfanar L.V Factory:

17. • Applicable standards IEC 61439-2
• Ie Up to 6300A (No derating up to 6100A, tested at 40° C)
• ICW 100kA/1 sec or 50kA/3 sec
• Ue 690Vac/600Vdc
• Ui 1000Vac
• Uimp 12KV
• Form Form 1 to Form 4B
• Internal Arc Withstand 65kA/300 mSec (Upon Request)
• Seismic Withstand 8 on Richter Scale (Standard Feature)
Alfanar-Terasaki
alfanar L.V SWG:

18. Who is TERASAKI ?
Alfanar Low Voltage equipment:

19. ALFANAR TERASAKI Breakers:
 Tem Power-2 is ACB made in Japan up to 6300A/135kA.
 TemBreak2 is MCCB made in Japan up to 1600A/200kA.
 TemDin2 is MCB made in France up to 125A/15KA.
 All ACBs & MCCBs tested under 50°C w/o derating.
Alfanar Low Voltage equipment:

20. Air Circuit Breakers (World Class Circuit Breakers):
 Ie=800A to 6300A
 Icu=Ics=Icw/1sec
 Ue=690Vac/600Vdc
 Ui=1000Vac
 Uimp=12KV
 Three frame size (800-2000A, 2500-4000A and 5000-6300A)
 Fixed or Withdrawable (Front, vertical or horizontal connection)
 Manual or Motor charging
 Comply with IEC 60947-2
 Comply with ANSI C37.13 and NEMA PUB NO.SG3
 3P or 4P
 Category B
 Trip Unit is AGR (L, R for general feeder or Transformer and S for
generator protection)
Alfanar Low Voltage equipment:

21. Protection Relays:
The Tem Power-2 series is equipped with an RMS sensing over-current
release AGRB AR Protection Relay samples& calculates the load current
every
(500 micro seconds).
Alfanar Low Voltage equipment:

22. Harmonic Monitoring:
TemPower 2 AGRs can detect & protect up to the 31th Harmonic.
Protection Relays:
The Phase Rotation Protection function detects the negative phase
current occurring due to reverse phase or phase loss and prevents
burnout of a
Moto or damage to equipment.
Alfanar Low Voltage equipment:

23. Tempreture control:
CONTACT TEMPERATURE MONITORING, This AGR protection function
monitors the temperature of the ACBs main contacts.
An alarm when the temperature exceeds 155°C.
Continuous monitoring of the contact temperature provides valuable
information for BMS, preventative and predictive maintenance programs.
Alfanar Low Voltage equipment:

24. Double break:
The Tem Power-2 Air Circuit Breaker is the smallest depth Air Circuit
Breaker in the world with a one second Short Circuit Withstand.
The unique “Double Break” main contact system ensures extremely
fast interruption of short circuit currents.
Conventional break time is 70msec, TemPower 2 breaking time is
25~30msec.
Alfanar Low Voltage equipment:

25. Eeasy maintenance:
The unique design of Tem Power-2 incorporates its
isolating clusters and main contacts on the ACB body. Allowing for
quick easy maintenance of the main electrical contact points and for
maintenance to be completed without having to isolate the board.
Alfanar Low Voltage equipment:

26. Replacement of main contacts:
The fixed and moving main contacts can easily
be replaced in the field, thus prolonging the life
on the circuit breaker. Changing each pole takes
around 15 minutes.
Alfanar Low Voltage equipment:

27. Double opening and closing coils:
Double Opening and Closing Coils provides extended control
system redundancy to an ACB. Double coils allow designers to
implement back-up tripping and closing systems. It provides the
end user with ultimate reliability on critical UPS circuits connected
to critical loads.
Alfanar Low Voltage equipment:

28. ACB accessories:
Alfanar Low Voltage equipment:

29. Moulded Case Circuit Breakers Circuit Breakers:
 Ie=125A to 1600A
 Ue=690Vac/600Vdc
 Ui=800Vac
 Uimp=8KV
 Fixed or Withdrawable (Front, vertical or horizontal connection)
 Manual or Motor charging
 Comply with IEC 60947-2
 Comply with NEMA AB-1
 1P, 3P or 4P
 Category A/B
Alfanar Low Voltage equipment:

30. Moulded Case Circuit Breakers (Thermal Magnetic):
6
8
12
10
0.8
0.63
1
Ir (x ln) Ii (x ln)
125A
Alfanar Low Voltage equipment:

31. Moulded Case Circuit Breakers
(Electronic):
Electronic version with integrated
monitoring and communication, data
can be sent to integrated display
local display and Modbus network
simultaneously.
Alfanar Low Voltage equipment:

32. Direct opening “Yellow and red symbol “:
This symbol located on the MCCB rating label,
indicates that the MCCB has direct opening
action.
According to IEC 60204 provides a positive
off.
Alfanar Low Voltage equipment:

33. Plug-in safety lock:
MCCB can only be
withdrawn when MCCB is
switched off.
Alfanar Low Voltage equipment:

34. MCCB accessories:
Alfanar Low Voltage equipment:

35. Circuit breaker with integral Residual Current
Protection “CBR”:
Alfanar Low Voltage equipment:

36. Al Imam Muhammed
ibn Saud Islamic
University
King Abdullah
Financial District -
KAFD
King Abdullah Sport
City –Jeddah (KASC)
Haramain High Speed Railway
King Abdullah Port
Alfanar Low Voltage equipment:
Reference projects in KSA:

37. Alfanar Low Voltage equipment:
Reference projects in overseas:

38. Alfanar Low Voltage equipment:
Reference projects in overseas:

39. Alfanar Low Voltage equipment:
Reference projects in overseas:

40. Alfanar Low Voltage equipment:
Reference projects in overseas: