13 • Technical Data
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4. TECHNICAL DATA
4.1 HRVS-DN IP00 Unit (OEM Kit)
Power Section and
Connection Harness
Control Module
Firing
Transformer
EPT-Tx and EPT-Rx
Figure 8 – HRVS-DN IP00 Unit (OEM Kit)
The IP00 unit (OEM kit) is available for building into custom enclosures or other relevant equipment.
It consists of the following (refer to
Figure 8 above):
Power Section consists of the 3 identical phase stacks, firing PCBs, power supplies to the firing PCBs
(in HRVS-DN from 10kV and up power supplies to the firing PCBs are separated from the Power
Section), 3 CTs and the connection harness to the low voltage compartment (including copper wires
and fiber optic wires). The Power Section is installed in the medium voltage compartment of the
cabinet.
Control Module is the “brain” of the soft starter. It consists of the main CPU PCB, fireboard PCB,
power supply, optional PCBs (when ordered) and input/output interface terminals.
The Control Module for HRVS-DN is identical for all ratings and suitable for mounting in the L.V.
compartment of the cabinet which should be fully segregated from the M.V. compartment.
Interposing relays should be connected to all HRVS-DN auxiliary contacts, three relays must be
incorporated: Immediate, End of Acceleration and Fault.
Firing Transformer. This transformer is applicable for 115VAC or 230VAC control voltages.
For HRVS-DN controlled by DC control voltages - DC power supply is supplied – for details consult the
factory.
The Firing transformer is installed in the low voltage compartment of the cabinet and supplies control
power to the firing PCBs located in the Power Section of the HRVS-DN in the medium voltage
compartment of the cabinet.
EPT-Tx (transmitter) and EPT-Rx (receiver) are used instead of the traditional voltage transformer to
measure the input voltage.
The EPT-Tx is installed in the medium voltage compartment and is connected to the mains bus bars
downstream from the Line Contactor.
The EPT-Rx is installed in the low voltage compartment of the cabinet.
The EPT-Tx and EPT-Rx are connected by 2 fiber optic wires which are part of the connection
harness.
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