Electrical maintenance departments workshops manufacturing electrical items and components, test and research laboratories are incomplete with- out A.C.High Voltage Teasting Facilities. It is an essential gadget to test quality of insulation provided in electrical equipment. It is most essential for routine periodical maintenance of electrical equipment
These nmc make auto reclosing relays are specially desinged for various control panels and motor control panels. our relays are very cost efficient and easy to operater. it comes in a standard size of : 96 mm , 96 mm, 65mm.
this auto recolsing relay is of two types:
1) auto reclosing relay - type s. S.
auto reclosing relay with adjustable time delay between 4 to 10 seconds.
this s. S. Type relay consists of just a single shot . there is a trigger which when is switched on, the timer gets on and within 4 seconds to 10 seconds the relay is tripped and the timer is switched off accordingly to the voltage within the circuit.
2) auto reclosing relay - type d. S. auto reclosing relay with adjustable time delay between10 sec to 60 sec. For 1st shot and 30 to 180 sec. For 2nd shot.
First introduced in 1992, the line has undergone great improvements based on advances in technology.These meters are exclusively developed at NMC for utter reliability under Industrial Conditions.
The KW (&MW) and Kvar (& Mvar) meters employ true 4-quadrant multiplieer exclusively developed for acurate true RMS measurement.
The instruments are in 96mm sq DIN flush mount enclosure ABS plastic body.
Ammeters suitable for CT primary rating 100 to 1600 A through DIP swtlches.
The instruments are field proven reliability having stable bright LED display& available in 230V AC auxilliary supply. 110 VAC version are also availabe.
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.
Power factor (cos Ø)
Apparent (RMS), active and reactive currents
5th, 7th ,11th ,13th harmonic voltage content
Total Capacitive power required to meet target power factor setting.
Monitoring 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 resonance cause 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.
Power Factor is an important Electrical parameter needing control,State of theart microcontrolbased APFCR type 130 5is specially designed to control the powerfactor of aninstallation by giving signals to switch capacitors on and of in a FIFO/FILOmanner accordinglyandreliably. The controller is ~ousedin a COQ1pac Ftlush Panelmounting enclosure of size144x 144DIN and has all the required controls and indications arranged on the front panel. High barrier / shroud edterminals are provided attherear of the casefor external connections. Solid state comonents are used through out with the exception of the electromechanical relays for the externals witch in gfor high reliability and compactness.The constructionis rugged, designed for years of troublefree service.
This instruments serves to indicate the angular or linear movement of any mumber of mechanism/Temperature at remote point, particularly for OLTC panel to indicate - tap Position, winding / Oil Temperature Indicator.
NMC : Oil Test set is ideal for speedy and acurate testing of di-i-electric strength of transformer and circuit breaker oil undertest room condition in acordance with IS:6792-1972 for oil testing
RATING
Input : 230 Volts, Single Phase, 50 Hz, AC. Output : Continuouslyvariablefrom0to 50 Kv'or' 0 to 60 Kv,'or' 0to 100Kv,'
CAPACITY: 1000VA(1KVA ) DUTY: The Oil Test set will be designed for"INTERMITTENT" RATING
NMC: Relay testing Kit in one unit, is suitable to test different types of Relays like over current, over voltage,under voltage,earth fault etc. The Test Kit will be in one unit. Meters, Terminals ,Indicators, Regulator Knob,Timer Display etc.will be fitted on the horizontal panel of the cabinet which can be approached by opening the top hinged lid. An input chord of 2 meters length with 3 pin plug will be provided. Loading transformer,Measuring CT & protection circuit will also be housed with in the same unit
Digital Temperature Control Module -20 to 100 Celsius. Power supply : 12 VDC./ max 250 mA. Max. load : 500 Watts. Display : 3.5 digits (0.1) LED Display shows current temp, min temp setting, max temp setting.This will allow you to connect your heater or air conditioner, or fan (up to 500 watts) through the relay. You can then set a low and high temperature value, within the tolerance of -20C to +100C. The display will tell you the current temperature, and when the low temp is hit, the relay comes on (activating your heater) until the current temperature value reaches the high value which acts as a cut off, opening the relay and turning off the heater. Conversely, this can work the opposite way as well, so that you can run an airconditioner or fan. Power supply : 12 VDC./ max 250 mA. Max load for the relay: 500 Watts. Sensor temperature range: -20 to 100 Celsius Display: 3.5 digits. There is also LED indication for power on/off and relay on/off. This is a fully assembled and tested module.
Introduced in 2000. the instruments are used for variety of control, alarm and tripping applications. The instruments serve to replce other more expensive equipments. These meters are exclusively developed at NMC for utter reliability under Industrial Conditions. The KW (&MW) and Kvar (&Mvar) meters employ a true 4-quadrant multiplier exclusively developed at NMC for accurate true RMS measrement. This instruments are fully solid state, field proven reliability, microcontrol design, low power consumption and avalable for LT & HT application.
A bar-graph which displays the voltage decay during the discharge of the tested circuit and the voltage stressing the insulation while the test is in progress.
A timer which shows the elapsed time when the test was
ON and also shows the total time of the test.
Displays a voltage warning and sound when AC or DC is present before injecting the test voltage.
A buzz will intermittently sound when high voltage is
generated and continues until the circuit is fully discharged.
Electronic Digital Earth Resistance Tester is direct replacement of the conventional hand generator type tester. It is designed for measurement of the resistance of earthing used in the electrical equipment as well as for measurement of ground resistivity. It can be used for measurements of the other low regular and liquid resistances. It can also be used for measurement of voltage AC, voltage DC and resistance. This instrument finds wide application for testing earthing installation in power based industries, telecommunication networks and electrical traction systems etc.
Delta Power & Controls Suppliers and retailers of circuit breakers such as electrical circuit breakers, communication circuit breakers, residual current circuit breakers, mini circuit breakers and miniature circuit breakers.
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