ABB SACE Emax E2.2 - Electrical Characteristics; Isolation Transformer; Measurements

ABB | SACE Emax 2
172 | © 2013 ABB | 1SDH001000R0002 - L7804
Electronic accessories | 3 - Ekip Synchrocheck module
Electrical characteristics
The following table lists the electrical characteristics of the module:
Component Characteristics
Input voltage 0...120 V AC nominal
Frequency in input 30…80 Hz
Output contact
• Maximum switching power
(1)
: 1250 VA.
• Maximum switching voltage
(1)
: 150V DC / 250 V AC.
• Breaking power
(1)
: 2 A @ 30 V DC, 0.8 A @ 50 V DC, 0.2 A @
150 V DC, 4A @ 250V AC.
• Dielectric strength between open contacts: 2000 V AC (1 minute
@ 50 Hz).
(1)
Data relating to a resistive load.
Isolation transformer
Between the external contacts of the circuit-breaker and the inputs of the module, an isolation
transformer must always be installed that has the characteristics listed in the following table:
Characteristics Description
Mechanical
• Mounting: EN 50022 DIN43880 guide.
• Material: self-extinguishing thermoplastic.
• Protection class: IP30.
• Electrostatic protection: with screen to be connected to earth.
Electrical
• Precision class: ≤ 0.5.
• Performance: ≥ 5 VA.
• Overload: 20 % permanent.
• Insulations: 4 kV between inputs and outputs, 4 kV between
screen and outputs, 4 kV between screen and inputs.
• Frequency: 45…66 Hz.
Measurements
The following table lists the measurement precision for the module:
Quantity Interval Accuracy
Voltage 10…120 V AC ± 1 %
(1)
Frequency
(2)
30…80 Hz ± 0.1 %
(3)
Phase
(4)
-180...+180 ° ± 1 °
(1)
With Bar live
(2)
With a live Bar, the measurement of the frequency is started up with a measured voltage ≥ 36 V AC, and
is stopped with a measured voltage ≤ 32 V AC.
(3) In the absence of harmonic distortion.
(4)
The phase measurement refers to the difference in phase between internal and external voltage.