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]

Chiller Cooling Capacity Calculator

Metric units
Imperial units

Water temperature Inlet:		[°C]
Water temperature Outlet:		[°C]
Volume flow rate [Q]:		[m3/hr]
Safety factor:
Requied cooling capacity:		[kW]
		[BTU/hr]
		[Tons]