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The RETOM-25 relay protection parameter measuring device is designed to adjust secondary electrical equipment in relay protection circuits and allows performing some tests of measuring current and voltage transformers, low-voltage control devices, contactors, electromagnetic starters and power switches. The RETOM-25 device has two adjustable sources of voltage and current of variable frequency, one adjustable source of DC voltage, a control panel and a multifunctional meter, which includes: ammeter, voltmeter, phase meter, frequency meter, stopwatch.
RETOM-25 is indispensable for testing and adjusting secondary and primary equipment: - All types of electromechanical relays (directional and non-directional current relays, voltage relays; resistance, power, frequency, time, indicating, intermediate, etc.); - Microprocessor protection 6-10-35 kV; - RCD; - Current measuring transformers, - Voltage measuring transformers; - Grounding; - Automatic reclosing; - High-voltage switches; - Automatic circuit breakers; - Low-voltage control devices; - Contactors, electromagnetic starters, etc.
Features of the compact complex for testing secondary and primary equipment Retom-25:
- Maximum output current 200 A – ensures testing of all types of relays, measurement of transformation ratio and polarity of current transformers;
- Maximum power 5000 VA – output power of the device for operation with additional units RET-3000 and RET-VAH-2000;
- Output voltage 250 V – operation in 220 V networks, removal of volt-ampere characteristics of measuring current transformers with a saturation voltage of 250 V;
- Compact and convenient – the device is easy to transport due to its light weight (only 19 kg) and small dimensions, a removable cover allows you to work with it in both vertical and horizontal positions;
- Expanding the functionality of the device through the use of the RET-3000 load transformer, RET-DT current converter, RET-VAH-2000 transformer unit, RETOM-6000 insulation testing device, and RETOMETR-M2 volt-ampere phase meter;
- Accurate measurements - the presence of an electronic regulator allows you to set the values of the output parameters in a small step (0.1% of the selected range), which guarantees more accurate measurement results. Additional indicators make it possible to determine the current position of the regulator;
- A wide range of measurements of the output and external current, voltage, frequency, phase angle, all types of time characteristics (operation, return, duration, time difference, bounce) of various relays and switching devices, determination of total, active and reactive resistance, total, active and reactive power;
Various measurement methods: amplitude, average rectified, root mean square (True RMS), with the allocation of the first harmonic (50 Hz);
- Phase and frequency control: the ability to adjust the phase angle between two sources allows you to check directional protection (power relays, resistance relays, etc.), as well as synchronization systems;
- The ability to change the frequency in a wide range (20-1000 Hz) allows you to check filter relays, high setting accuracy (0.001 Hz) ensures checking the frequency relay, and control of the frequency change rate (df / dt) - checking the automatic frequency shift, automatic automatic reversal;
- The operational power source (220 W) allows you to check the relay protection devices in an autonomous mode at nominal, reduced and increased voltage (176 - 260 V);
- Computer control - the device can operate both in autonomous mode and under PC control. The software included in the delivery set includes the "Manual Control" module for full control of the main organs of RETOM-25, as well as programs for automatic testing of most types of relays (RT, RN, RM, RF) and taking the I-V characteristics of measuring CTs;
- The inter-verification interval is 4 years.
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