SINGLE PHASE - ISOLATING TRANSFORMER ES710(Available as GL Edition)
SINGLE PHASE - ISOLATING TRANSFORMER ES710(Available as GL Edition) - Image 2
SINGLE PHASE - ISOLATING TRANSFORMER ES710(Available as GL Edition) - Image 3

SINGLE PHASE – ISOLATING TRANSFORMER ES710(Available as GL Edition)

Categories: , Tag:

Device features
• Built-in temperature sensors acc. to DIN 44081 (120 °C)
• Screen winding with brought-out insulated connection terminal
• Insulated mounting angles
• Degree of protection, IP00 (open design)
• Degree of protection, IP23 (with enclosure)
• Protection class I
• Protection class II (option: encapsulated version)
• Reinforced insulation
• Classification of insulation: ta40/B
• Connections: screw terminals
• Noise level < 35 dB (A) (no-load and nominal load)
• Vector group: IiO
• Inrush current IE GL version < 8 x În

Product Overview

Description

Application and description
The transformers of the ES710 series (Also available as energy-efficient Green Line (GL) edition) have reinforced insulation and comply with the requirements of IEC 61558-1/DIN EN 61558-1 (VDE 0570-1) and IEC 61558-2-15/DIN EN 61558-2-15 (VDE 0570-2-15).
In addition, the transformers comply with the requirements of IEC 60364-7-710/DIN VDE 0100-710 (VDE 0100-710) for IT systems in medical locations. The windings are galvanically isolated. In order to minimize electrical interferences, an electrostatic screen is installed between the primary and secondary winding the lead out of which is connected to an insulated terminal for connection to the equipotential bonding.
The fixing angles are isolated from the transformer core in order to guarantee an isolated installation to comply with the requirements of DIN VDE 0100-710 (VDE 0100-710), para. 710.512.1.6.2).
The transformers are available for horizontal and vertical installation. Protection against corrosion is guaranteed by a complete resin impregnation.
The transformers are designed for use in dry locations. Transformers of the SK2 series are completely encapsulated and fulfil the requirements of protection class II.
Frequency/ratings
The transformers are designed for rated frequencies of 50…60 Hz. The values specified in the chapter “Technical data” refer to a maximum ambient temperature of 40 °C and a rated frequency of 50 Hz.
Temperature rise
Free air circulation must be ensured. An ambient temperature exceeding 40 °C will reduce the rated power. For temperature monitoring, a PTC thermistor is placed on each transformer leg and the leads are connected to the terminals.
Enclosure
Appropriate steel sheet enclosures, degree of protection IP 23, are available for all standard types of isolating transformers.
Rated power
According to DIN VDE 0100-710 (VDE 0100-710), the rated power of the transformer shall not be less than 3.15 kVA and shall not exceed 8 kVA.
Overload protection
When isolating transformers are used to form a medical IT system in accordance with para. 710.512.1.6.2 of DIN VDE 0100-710 (VDE 0100-710), overload protection is not permitted. In this case, short-circuit protection is required. That means, emphasis is focused on the availability of the power supply; it is therefore essential to avoid disconnection on the occurrence of transient overload. The protection of isolating transformers
against overload and overtemperature can be realized by using monitoring devices in accordance with para. 710.531.3.1. The appropriate fuses for short-circuit protection can be selected from the table “Technical data”.
Standards
ES710 isolating transformers comply with the device standards and the regulations for installation: DIN EN 61558-1 (VDE 570-1), IEC 61558-1, DIN VDE 0100-710 (VDE 0100-710), DIN EN 61558-2-15 (VDE 0570-2-15), IEC 61558-2-15, IEC 60364-7-710.