Instructions
Table Of Contents
- Safety precautions
- DISCLAIMER
- CONTENTS
- Revision log
- SYMBOLS
- 1.- VERIFICATION UPON RECEPTION
- 2.- Product description
- 3.- DEVICE installation
- 3.1.- PRELIMINARY RECOMMENDATIONS
- 3.2.- BATTERY INSTALLATION
- 3.4.- MYeBOX 480V ~ PSU ADAPTER : POWER SUPPLY ADAPTER
- 3.5.- VOLTAGE CABLES
- 3.6.- CURRENT CLAMPS
- 3.7.2.- MYeBOX 1500
- 3.8.- CONNECTION DIAGRAMS
- 3.8.1.- Three-phase network measuring with a 4-wire connection,
- MYeBOX 150.
- 3.8.2.- Three-phase network measuring with a 4-wire connection,
- MYeBOX 1500.
- 3.8.3.- Three-phase network measuring with a 3-wire connection, MYeBOX 150 and MYeBOX1500.
- 3.8.4.- Three-phase network measuring with a 3-wire connection and ARON connection, MYeBOX 150 and MYeBOX 1500.
- 3.8.5.- Two-phase network measuring with a 3-wire connection,
- MYeBOX 150.
- 3.8.6.- Two-phase network measuring with a 3-wire connection,
- MYeBOX 1500.
- 3.8.7. - Single-phase network measurement, phase to phase, with a 2-wire connection, MYeBOX 150 and MYeBOX 1500.
- 3.8.8.- Single-phase network measurement, phase to neutral, with a 2-wire connection, MYeBOX 150.
- 3.8.9.- Single-phase network measurement, phase to neutral, with a 2-wire connection, MYeBOX 1500.
- 3.8.10.- Detail of the current measurement connection.
- 3.8.11.- Leakage current connection, ILeak. (MYeBOX 1500 model)
- 3.9.- REGISTERING AND UPDATING THE DEVICE
- 4.- OPERATION
- 5.- display
- 6.- CONFIGURATION
- 6.2.2.- Measurement name
- 6.2.1.- Name of the device
- 6.1.12.- Exit
- 6.1.11.- Save
- 6.1.10.- Frequency
- 6.1.9.- Primary winding of the leakage current transformer
- 6.1.7.- Primary winding of the neutral current transformer
- 6.1.6.- Neutral clamp scale
- 6.1.5.- Primary winding of the current transformer
- 6.1.4.- Phase clamp scale
- 6.1.3.- Secondary voltage
- 6.1.2.- Primary voltage
- 6.3.2.- Gap, Sag
- 6.3.1.- Overvoltage, swell
- 6.2.5.- Exit
- 6.2.4.- Save
- 6.2.3.- Type of installation
- 6.4.1.- Wi-Fi Configuration
- 6.3.6.- Exit
- 6.3.5.- Save
- 6.3.4.- Transients, Disturb
- 6.3.3.- Outage, Interruption
- 6.4.9.- PIN
- 6.4.8.- APN, password
- 6.4.7.- APN, user
- 6.4.6.- APN, access point name
- 6.4.5.- Enabling 3G communications
- 6.4.4.- Password
- 6.4.3.- WPS
- 6.4.2.- SSID
- 6.5.- SETUP MENU: MEMORY SETUP
- 6.6.- SETUP MENU: RESET FACTORY SETUP
- 6.1.1.- Rated voltage
- 6.1.8.- Clamp scale for measuring the leakage current, ILeak
- 7.- WIRELESS COMMUNICATIONS
- 8.- MOBILE APPLICATION MYeBOX
- 9.- mYeBOX Cloud
- 10.- software UPDATE
- 11.- TECHNICAL FEATURES
- 12.- Maintenance AND TECHNICAL SERVICE
- 13.- GUARANTEE
- 14.- CE CERTIFICATE
47
Instruction Manual
MYeBOX 150 - MYeBOX 1500
Asymmetry coefcient, Ka: ratio between the homopolar and direct components in an unbal-
anced system.
% =
|
|
|
|
100
% =
|
|
|
|
100
=
1 +
1 +
=
|
|
100
Equation 1: Asymmetry coefcient.
Unbalance coefcient, Kd: ratio between the inverse and direct components in an unbal-
anced system
% =
|
|
|
|
100
% =
|
|
|
|
100
=
1 +
1 +
=
|
|
100
Equation 2:Unbalance coefcient.
K-factor, Transformer power reduction factor :
The device calculates the K-factor according to IEEE C57�110. The K-factor is a factor that is
used to calculate transformer power reduction.
=
=
1
Equation 3: K-factor �
Where:
I
R
, denotes nominal rms load current of the transformer,
h, denotes harmonic order.
Crest Factor
The crest factor is the ratio between the peak value and the RMS value of a voltage or a peri-
odic current. The purpose of the crest factor is to give an idea of the wave peak and it is used
primarily for current waves.
% =
|
|
|
|
100
% =
|
|
|
|
100
=
1 +
1 +
=
|
|
100
Equation 4: Crest Factor
In a perfect sinusoidal wave, the peak is √2 times greater than the RMS value; therefore the
crest factor is 1�41. For waves with very high peaks, the crest factor will be over 1�41