SD300 Capacitor Discharge unit

SD300 Capacitor Discharge Unit

SD300 for Safe Discharge of Capacitors

The portable new SD 300 is an innovative, self-contained safe electrical discharge device. It has been designed to protect the operator or electrical test engineer from danger and the equipment under test from potential damage. The UL Listed device has been specifically designed to enable engineers to safely discharge high power capacitors used in power storage, power factor correction, DC drives and energy storage applications in the wind turbine, petrochemical, oil and gas processing and other industries.

The unique failsafe design of the SD300 capacitor discharge unit incorporates a two-handed push button operation to initiate and maintain the energy discharge, ensuring that the operator cannot come into contact with the live circuit. In addition, the operator is totally isolated from the discharged energy by a fully insulated and robust instrument case rated at IP66.

The totally self contained capacitor discharge instrument comes complete with fully shrouded fused test leads and includes an inbuilt test lead and fuse proving facility. Other safety features include an automatic pre-use self test, protection against prolonged connection to live operating circuits and monitoring of critical component temperatures with automatic cut off.

As the first instrument of its type, the SD300 capacitor discharge unit provides an innovative and highly effective solution for the safe discharge of electrically charged equipment - protecting the operator from danger and the equipment under test from potential damage.

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Key Features

Unique failsafe designMultiple safety interlocks inhibit discharge if the capacitors are not electrically isolated.
UL Listed The SD300 is Listed by Underwriters Laboratories Inc.
Electrical isolation between probes. All test leads and probes are electrically isolated to avoid sparking during connection/disconnection.
Two handed operation Both hands are needed to initiate and maitain discharge ensuring the operator does not come into contact with hazardous parts.
Self test facility. All discharge meters and indicators, test leads and test lead fuses are tested using the in-built proving facility.
Rugged drop proof enclosure. High impact resistance, IP66 enclsoure designed to withstand the harshest of working environments.

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SD300 Data sheet

Technical Specification

Maximum voltage 1000V DC

Maximum capacitance 1200uF

Discharge time 30s nominal @1000V/1200uF

Safety Interlock Discharge inhibited if >40V AC between test probes

Indicators Centre-zero panel meters and LED indicators

Test leads 3 x 4m fully shrouded with fused probes.

IP Rating IP66 (Case closed)

IP40 (Case open)

Power Supply 3 x PP3 alkaline (main unit)

1 x MN21 alkaline (proving)

Dimensions (mm) 339(w) x 295 (d) x152 (h)

Weight 4kg

Approvals UL Listed

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