Electrical Characteristics Of The Transformers; Mechanical Characteristics; Operating Frequency Range - ABB SACE Emax Series Installation, Service And Maintenance Instructions

15.1.7

Electrical characteristics of the transformers

If the phase-to-phase line voltage is greater than 690Vac, it is essential to use a step-down transformer between the bars and the PR120/V
module. Voltage transformers can be installed up to 15m away from the PR120/V module to which they are connected. Proper operation is
only guaranteed for star/star or delta/delta configurations.
The allowable primary and secondary rated voltages that must be set on the unit are specified in the table 15.1.5.2.

Mechanical characteristics

Fixture
Material
Degree of protection
Electrostatic protection
Electrical characteristics
Precision class
Performance
Overload
Insulation

Operating frequency range

L2234
Model
L2778
DIN rail EN 50022
self-extinguishing thermoplastic
IP30
shielded towards EARTH
cl. 0.5
≥10 VA...≤20 VA
20% permanent
4 kV between inputs and outputs
4 kV between shield and outputs
4 kV between shield and inputs
from 50Hz to 60Hz, ± 10%
Apparatus
Doc. No.
1SDH000460R0002
Scale
Emax
Page No.
119/158