RECTIFIERS
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RECTIFIERS CITY CLECTRIC TRANSPORT ■ RAILWAYS ■ METRO

PLUTON is one of the largest manufacturers of electrotechnical equipment on the territory of Europe. The company's products are supplied to many countries around the world. PLUTON holds key position in electrical industry and has been successfully working for over 25 years, realizing the strategy of intensive growth, development and continuous improvement of products quality and services. PLUTON quality management system corresponds international standard ISO 9001:2015. The company also confirmed compliance of its management principles with occupational safety and health OHSAS 18001:2007...

PLUTON offers fixed and withdrawable rectifiers. The latest achievements of world technology are applied during development and manufacturing of our rectifiers. This applies both to design of the cabinet and converter power part, as well as rectifier software, protection, diagnostics and control systems, electrical installation, technological solutions, maintenance and repair technology. As a rule, we supply rectifier with Resibloc® windings dry transformer. Transformers can also be cast resin, supplied with epoxy glass cloth laminate sheet windings. RESIBLOC® Dry Transformer: • reliability...

FIXED RECTIFIERS Rectifiers are manufactured with 12-pulse and 6-pulse “bridge” rectification circuits (according to EN 50238: 2003, Table 4, connections 8,9,12). COMPLIANCE WITH INTERNATIONAL STANDARDS Rectifiers manufactured by PLUTON were successfully type-tested for compliance with International standards in test center IPH Institut (Berlin, Germany). Rectifiers meet international standards EN 50328, IEC 60146-1-1.

FIXED RECTIFIERS Main Components Switching surge protection Power semiconductor devices are protected against internal and external switching surges. Diodes are protected against internal switching surges with RC-circuits and against external switching surges combined with RC-circuits and varistors. Power Diodes Pill power diodes manufactured by VISHAY (formerly International Rectifier) are applied. Two diodes in series are connected in each arm of rectifier. Contact Connections Stabilizing Power part of rectifier is manufactured applying maintenance-free contact connections.

Diagnostics and Control System The system is based on industrial controller 4PP70 (with colored HMI panel) providing each diode parameters monitoring in dynamic mode during operation of the rectifier. It also provides events logging, visualization of temperature distribution, voltage and other diode parameters, protection against rectifier and transformer overheating, protection against diodes breakdown, communication with SCADA system etc. Galvanic isolation boards Galvanic isolation boards provide protection against overvoltage with RC-circuits, supply information for diagnostics system...

Rectifiers are equipped with microprocessor control and diagnostics system. This system issues the following criteria information about state of each diode on visualization panel: “normal operation”, “parameters derating”, “breakdown”, as well as diodes temperature. Monitoring of each diode parameters is made dynamically, during rectifier operation. Diagnosis of the mentioned criteria can significantly increase the period of rectifier trouble-free operation. In case of diode parameters changing to critical for this circuit level, the power diode can be replaced without its breakdown. In...

Main technical parameters of fixed rectifiers * other values - upon request Rectifiers are manufactured for both indoor and outdoor arrangement. In case of outdoor arrangement control and diagnostic system is located separately and installed indoors or in a cabinet with regulated environment. Rectifiers are manufactured with air natural and forced cooling. Forced air cooling is actually combined natural air and forced air. Rectifier operates with natural cooling under loads lower or close to rated ones. In case of risk of overheating under overloads, fans are switched on and forced cool...

OVERALL DIMENSIONS OF FIXED RECTIFIERS Positive busbar Negative busbar Rectifier 750 V (825 V); 1600 А, with natural cooling, VІ duty class acc. EN 50328. Positive busbar Negative busbar W Rectifier 750 V (825 V); 2500 А, with natural cooling, Rectifier 750 V (825 V); 4000 А with forced cooling, VІ duty class acc. EN 50328. 10

Rectifier 1650 V; 3150 A with natural cooling, Rectifier 1500 V (1650 V, 3300 V); 4000 A with forced cooling, VI duty class acc. EN 50328.

Rectifier 3300 V, 2000 A, with natural cooling, Rectifier 3300 V, 3150 A, with forced cooling. VI duty class acc. to EN 50328. 12-pulse rectification circuit. Outdoor installation. PLUTOn RECTIFIERS

POWER PART CIRCUITS OF FIXED RECTIFIERS Protection panel А - galvanic isolation board Diagnostics system Protection panel Protection panel Diagnostics system

POWER PART CIRCUITS OF FIXED RECTIFIERS А - galvanic isolation board V1 Diagnostics system Diagnostics syst

The main control device in the rectifier is a modular microprocessor control and protection system based on microcontrollers 4PPC70 produced by B&R. With a long-term experience in the electrotechnical field, PLUTON offers a wide range of reliable withdrawable rectifiers. Withdrawable rectifiers are produced with 6-pulse and 12-pulse bridge rectification circuits. Rectifier arm can be made with “diode-diode" or “diode-fuse" structure. Power pill diodes, 25th grade, are applied for current up to 3000 A. Power fuse is applied in series with each diode in “diode-fuse" circuit. Control and...

Design features Power unit can have three specific positions against fixed cabinet: • operating position - power contacts are closed; • test position - power unit is 100 mm rolled out from the cabinet, power contacts are opened and separated with the gap, ensuring insulation; • servicing position - power unit is completely rolled out on the substation floor. ▲ Withdrawable rectifier (diode-fuse). Power unit in the maintenance position Protections Overvoltage protection: • Power semiconductor devices in “diode-diode" rectifier are protected against internal switching overvoltages (using...