Transformer Calculator

 

Công suất MBA (P):		[VA]
Điện áp vào (Uv):		[V]
Điện áp ra (Ur):		[V]
Vật liệu tấm lõi (E):	Lá thép E có bề dầy là 0.35mm Lá thép E có bề dầy là 0.5mm	[mm]
Hệ số hở (K):
Hiệu suất (η):
Tiết diện lõi thép (S):		mm2
Chiều rộng lõi thép (a):	20 22 25 28 32 36 40 45 50	[mm]
Độ dày lõi thép (b):		[mm]
Số lượng lõi thép:		pcs
Hệ số từ thẩm lõi thép (F):		36-50
Số vòng trên cuận sơ cấp N1:		[vòng]
Số vòng trên cuận thứ cấp N2:		[vòng]
Dòng tải sơ cấp I1:		[A]
Dòng tải thứ cấp I2:		[A]

Motor starter parts

Motor Full Load Current (AMPS):		A
OR MOTOR INFORMATION
Three Phase Voltage (V):		V
Motor Power(S):		kW
Power factor (cosΦ):
Efficiency (E):		[%]
Frequency (F):		[Hz]
Poles (P):
Connection type
Connection type:	D.O.L Starter Star-Delta Starter
Aplication of motor:	Non-inductive or slightly inductive loads, eg. Heaters Slip-ring motors:  Switching off Squirrel-cage motors:  starting, switching off motors during running time Squirrel-cage motors: starting, plugging, inching Switching of discharge lamps Switching of incandescent lamps Switching of transformers Switching of capacitor banks Slightly inductive loads in household appliances: eg. Mixers, blenders Motor-loads for household appliances: eg. Fans, central vacuum Hermetic refirgerant compressor motor control with manual resetting overloads Hermetic refirgerant compressor motor control with automatic resetting overloads Control of resistive loads and solid state loads with opto-coupler isolation Control of solid state loads with transformer isolation Control of small electromagnetic loads Control of AC electromagnetic loads Connecting and disconnecting under no-load conditions Switching of resistive loads; including moderate overloads Switching of mixed resistive & inductive loads, including moderate overloads Switching of motor loads or other highly inductive loads
The result
Full load current:		[A]
Motor Starting Current :		[A]
Motor Synchronous Speed:		[Rpm]
Fuse (Max)		[A]
Circuit Breaker (Max)		[A]
Over Load Relay		[A]
		[A]
Main Contactor:		[A]
Delta Contactor:		[A]
Star Contactor:		[A]
Contactor of type:

Star/Delta Motor Starter diagram.

Circuit Breaker in household Size

THE AMPERAGE OF A CIRCUIT BREAKER IN HOUSEHOLD
Power of device:		[W]
1 Phase Voltage:		[V]
Power factor:		[P.F]
Safety factor:	- 2.5
Full Load Current:		[A]
Recommend the Amperage of Circuit Breaker (Min):		[A]
Recommend the Amperage of Circuit Breaker (Max):		[A]

Capacitor Bank

 

P: Real Power (kW)

S: Apparent Power (kVA)

Q: Reactive Power (kVAr)

Cosø1: Old Power factor

Cosø2: Power factor correction

Qc: The power of the capacitor bank (kVAr) 

SIZE OF CAPACITOR BANK CALCULATION
Electrical Load (P):		[kW]
Old Power factor (Cosø1):		[P.F]
Target Power factor (Cosø2):		[P.F]
Required Size of Capacitor Bank (Q):		[kVAr]

Voltage Drop Calculator (60364-5-52 - IEC:2009)

Full Load current:	[A]
Voltage:	[V]
No phases:	3 Phase 1 Phase
Power factor:	[pu]
Conductor material:	Copper Aluminium
Select cable size:	1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 [mm2]
Cable length:	[m]

THE RESULT:

Table G.52.1 – Voltage drop

Type of installation	Lighting %	Other uses %
A – Low voltage installations supplied directly from a public low voltage distribution system	3	5
B – Low voltage installation supplied from private LV supply*	6	8
* As far as possible, it is recommended that voltage drop within the final circuits do not exceed those indicated in installation type A. When the main wiring systems of the installations are longer than 100 m, these voltage drops may be increased by 0,005 % per meter of wiring system beyond 100 m, without this supplement being greater than 0,5 %. Voltage drop is determined from the demand by the current-using equipment, applying diversity factors where applicable, or from the values of the design current of the circuits.

Conductor sizing (60364-5-52 -IEC:2009)

- Selection of conductor type and insulation.
- Selection of method of installation.
- Taking account of correction factors for different environmental conditions.
- Determination of cross-sectional areas using tables giving the current carrying capacity.

LOAD INFORMATION
Full Load current:		[A]
CABLE SPECIFICATION
Conductor material:	Copper Aluminium
Insulation type:	PVC XLPE
Number of cores:	Single Core Multi Core
INSTALLATION CONDITIONS
Installation reference method:	A B C D E F G
Ambient temperature:	10 15 20 25 30 35 40 45 50 55 60 65 70 75 80	[C]
No. of grouped cables:	1 2 3 4 5 6 7 8 9 12 16 20
Installation type:
Nature of soil:

The Result: