Motor Protector
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The SN-25 Series is a high current DC motor protector which delivers the benefit of locked rotor and overload protection in a robust integrated package. A broad range of design and mounting options enable this device to be custom engineered to meet your needs. Over current and temperature protection in DC Motors. - Refrigerator Compressors - DC blowers - Engine Cooling fan motors - Pump Motor Features - Tin plated steel base and tab.- Available in covered and uncovered versions- Designed to trip time or temperature specifications.- Multiple bimetallic resistivities available. The SN-25 Series has been designed to offer protection for a wide range of 12 volt to 48 volt applications in a minimum package size. The SN-25 Series is suitable for both intermittent and continuous rated motors. The SN-25 is also designed for manual switching operations. The SN-25 is physically small and has unique 'snap action' bimetal disc, ensuring a positive make and break switching action for enhanced contact life.
Motor Protector
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Industrial Relay
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reverse power relay
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Power ( Load ) sharing between two Alternators in Parallel Operation condition Transfer of Power from one Alternator to other Alternator in Parallel operation Power sharing between one Alternator & Infinite Bus (3Ø mains) in Parallel Operation condition.
Automatic Power Factor Control Relay
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CONTROLSBasicPowerFactor: The value at which that power factor is to beset is selected by means of this control, which has a calibrated dialfrom0.81agto 1.00.DeadBand:Dependinguponthe KVARcapacityofeach capacitortobe switched the, relay response sensitivityhas to be adjusted. Thedead band control serves to adjust this, so that hunting isavoidedDeadBandControl: . AtMinimum-::'::3° ElectricalAtMaximum- ::'::13°ElectricalSPECIFICATIONVoltage: 400 or 415 or 440V 3 Ph. 3. wire, 50 Hz, 2.5 VA(J ]OVAC.forHTapplication).Current: Through 5 Amp. CTsecondary on RPhase of incomer.3VA(1Amp model on request).Output: Each capacitor control relay is provided with one changeover contaa rated formaximum 230VAC/5Amps.resistiveload.P.FA. djustment range: 0.81agto 1.00.P.F. Meter range: 0.61agto 0.6Iead. Digital automatic control relay for intelligent control of capacitor bank.Simple Commissioning: By automatic identificaton of threshold current(c/k value), phase angle, connected capacitor stages and switching sequences.Operator Overview: Through clear display of key momentary values and operating parameter.a. Power factor (cos Ø)b. Apparent (RMS), active and reactive currentsc. 5th, 7th ,11th ,13th harmonic voltage contentd. Total Capacitive power required to meet target power factor settingMonitoring of Harmonic Levels: By continuous monitoring and display of harmonic voltage levels. In the event of harmonic levels exceeding programmable limits, all capacitors will be switched off through over-current alarm.Additional Protection for Capacitors: The RMS current monitoring function provides excellent protection for capacitor bank without harmonic filters, especially when resonancecause an increase in harmonic levels. Potential-free alarm contact. Programmable overcurrent alarm threshold limit(from 1.05 to 3.0 x Irms). Continuous monitoring for defective capacitor stages through self adjustment of control program. Zero voltage and zero current tripping with alarm signal. Kinked" control curve characteristics avoid overcompensation under light load. Four-quadrant power control with LED display when active power is generated into mains. Manual/automatic operation with ability to switch each individual capacitor stage ON or OFF. Target power factor setting adjustable from 0.80 inductive to 0.95 capacitive in steps of 0.01. Preset up to three fixed capacitor stages which will be excluded from normal automatic operation. Independent setting of capacitor swithcing time to match discharge time of capacitor stages. Suitable for current transformers with rated secondary current of 1A-5A. Alarm Signals for: a. Undercompensationb. High harmonic levelsc. Overcurrentd. Switching counterse. Fault in voltage circuit (U = 0 alarm)f. Fault in current circuit (I = 0 alarm)g. Fault in capacitor stages (C = 0 alarm)PF Target Power Factor (1.70 to 1.00) PF Cap / Ind : Lagging /Leading Target Power Factor.Dead band : Dead band for target Power Factor (0.00 t0 0.30).Corr. Delay : Capacitor - switching delay (1 to 250).Ct Rating 1A / 5A : Current rating for the current transformer/ (select 1 AMP if the CT input is received through the select 5Amp if the CT input is received through the R5 pin of the power connector).Ct Ratio : turns ratio for the current transformer (1 to 200)Program No : Program No. ( 1 to 33) (refer the program no. chart).CB1 KVAr : KVAr rating of the first Capacitor Bank connected (0.5 to 99.5 KVAr)
reverse power relay
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MRP11 is micro controller based single phase, reverse power relay with one measuring element. Relay operates for pure active reverse power only and will not cause spurious tripping due to PF fluctuations in the system. Relay can work as a reverse reactive power relay with an addition potential transformer.
single phasing preventer
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Stucke Power Protection Relays
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We offer stucke make power protection relays.
Miniature Power Relay
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Miniature Power Relay, Global Positioning System
Single Phase High Power Solid State Relay
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Single Phase High Power Solid State Relay, Soft Starter, interface modules
reverse power relay
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reverse power relay, Engine Start Relay