KEY FEATURES
2014/34/UE (ATEX)
master/slave operation
energy return to the grid
compact construction
Selected technical data
up tp 1140 V
rated switching voltage
up to 1,5 In (60s)
current overload capability
up to 2500 kg
weight of the device
up to 0÷100 Hz
output frequency
up to 340 A
total rated continuous current of the inverter outlets
50/60 Hz
rated supply frequency
Technical specification
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The converter, with a voltage of up to 1.14kV, is an electrical device designed for the connection and control of electrical drives of mining machines and equipment, allowing stepless adjustment of the motor speed.
The device can be installed in underground mine workings of non-methane and methane mines.
The design of the device has been developed
in accordance with the requirements of Directive 2014/34/EU (ATEX). The applied electroenergetic protection and the adopted system of control and cooperation with interlocks
technological interlocks with the use of intrinsically safe circuits, allow for safe cooperation with equipment supplying mining machinery.
The frequency converter is designed for autonomous operation and in a group of converters, in which each converter (drive) can operate independently and in MASTER-SLAVE mode. The device is adapted to be connected to a data transmission system
data transmission system enabling control, reading of technological information and its transfer to the mine surface (e.g. to the dispatcher).
Technical specification
FREQUENCY INVERTER PNO-340
| Rated switching voltage | up to 1140 V |
| Total rated continuous current of inverter outlets | up to 340 A |
| Rated power frequency | 50/60 Hz |
| Current overload capability | 1,5 In (60s) |
| Scale, vector | control |
| By-pass mode | |
| Weight of the device | up to 2500 kg |
| Built-in mains and output filter | filter |
| Water – dedicated cooling device | cooling |
| Output frequency | 0÷100 Hz |
| Secondary drains | up to 1140 V |
Configuration diagram
Diagram
FREQUENCY INVERTER PNO-340
FREQUENCY INVERTER PNO-340
Voltage converter up to 1.14 kV
