Variable Auto Transformers - DC High Voltage Testers Delhi India

Wherever voltage control is required, ‘RE’ Variacs makes it very simple by providing Toroidally wound Auto Transformer for variable voltage. If you have not yet used ‘RE’ Variacs you are missing some important benefits of using electric power.

The maximum current that can be drawn depends on the size of the wire used. The ‘RE’ Voltage regulators are manufactured from 2 A to 2000 A for Single and Three Phase.

Special Features

  • Compact in Size.
  • Easy to operate.
  • Special Insulating Paper is used for transformer winding.
  • Guaranteed for one year against manufacturing defects.
  • Efficient After Sales Service.




TECHNICAL SPECIFICATIONS

‘RE’ Variac Continuously Variable Auto Transformers usually form part of system in which other components such as transformers. Diode etc. are used as power components, ‘RE’ Variac Engineers are well experienced in such applications and are always available for consultation to prospective users.

The proportion between iron section and copper turns is such that at the maximum AC applied voltage maximum NO LOAD current is within 5%.

The insulation of the wire over one face is removed the output is taken between one end and the brush arm. The moving Brush contacts the next turn before it breaks away from the previous turn, thus, there is no interruption in output voltage.

‘RE’ Variac is designed to Boost the Output, Voltage by 12% than the input voltage.

Three Single phase units are connected in star for 3 phase four wire system. The brush arms are moved by a common shaft and the Star point is connected to the neutral of the system. A three phase voltage variable from zero to 470V is obtained, if the Input voltage is 415V in case of single phase 270V is obtained if input is 240V. Custom made capacities can be manufactured and as yet the manufacturing range covers upto 2000 Amperes in three phase.

OPTIONAL: ‘RE’ Variacs are available with motor drive. The type of motor used for driving is specially made for this application. It is 240V AC motor operating with speed of 60 RPM synchronous at 50Hz. It is instantly reversible and can be stopped without overrun. It speed depends on frequency i.e. 60 RPM at 50 Hz. Supply. The desired speed is obtained by suitable by gearing. It starts stops & reverses instantly. It is ideal for automatic voltage control through Electronic system. *It can be stalled indefinitely without over heating.


For further details

Call us at: +91-11-41425851 / 52
E-mail us at: info@re-india.com

Million Mega Ohm Meter Manufacturers Suppliers Exporters India

Million mega ohm Meters are designed for measurement of insulation resistance of insulating materials, Electrical & Electronic Components, Cables, Panels, Transformers, chokes, PCB's, Plugs & Sockets and many similar products. They are especially designed for testing cables & wires keeping in view high charging current of capacitive loads.

The unit consists of built in arrangement for charging the capacitor and indicates the value of insulation after preset time. This facility ensures efficient working of the unit.

SPECIAL FEATURES

  • Solid State Circuit
  • More reliable than hand cranked/motorized models
  • Simple to operate
  • Can be used on all types of insulation material




TECHNICAL SPECIFICATIONS

INPUT VOLTAGE : 
230 + 10% Single Phase 50Hz Ac

OUTPUT VOLTAGE (any one or more) :
100V, 250V, 500V, 1000V, 2500V, 5000V, DC.

OUTPUT CURRENT :
3 mA (upto 5mA)

RANGE OF MEASUREMENT : 
1 Megohm to 10 Megohms (As per requirement)

METERING :
(a) With Digital Indication upto 2000 Megohms.
(b) Moving Coil Analogue Meter. Scale 0-100 Megohm

TEST VOLTAGE SELECTION :
Through Selector Switch

OVER RANGE INDICATION : 
Available.

ACCURACY CLASS :
+/- 2% of reading, + 0.5 % of FSD


For further details

Call us at: +91-11-41425851 / 52
E-mail us at: info@re-india.com

DC High Voltage Test Set - Stationary - Exporters to South Africa, Zimbabwe

This equipment is used for testing the underground cable, large Generator, Motor Transformer capacitor etc as per IS specification. The unit comes equipped with digital meters, motorized controls, one/two way computer interface, Emergency shut down and Optimum operator safety features.

SPECIAL FEATURES

  • Multiplier circuit for economy and better life.
  • Multiple interlocks for human safety.
  • Optional computer interface facility.
  • Available unto 1000 kV and 1 Amps.





TECHNICAL SPECIFICATIONS

TRANSFORMER :
A double wound step up transformer is used for boosting the voltage. The transformer is made of super enameled wire, CRGO core and polyster film/paper for insulation.

VOLTAGE CONTROL :
A step less auto-transformer is used for controlling the output from zero to maximum. The auto-transformer has built in arrangement for zero start interlocking.

INPUT VOLTAGE : 
230 or 400 volts single phase 50 Hz AC supply.

OUTPUT VOLTAGE : 
Upto 300 KV

CAPACITY : 
Upto 50mA on HV side.

RATING : 
Continuous for testing and 15 minutes at full load

CONTROL :
Knob to control the output voltage from zero to maximum or push button n case of motorized model.
Knob to control the tripping current in steps.

METERING :
Moving coil / digital KV meter and milliamp meter will be provided to indicate output Voltage and leakage current.

TERMINATING :
The negative and positive terminals are brought out on suitable insulators. Positive or negative polarity can be supplied at Earth Potential on request.

PROTECTION :
The unit consists of fast acting DC relay which actuates instantaneously if the testing current goes beyond the pre-set level.b) The HV will not actuate if variac is not at zero position (To protect the transformer against transients on HV side & to protect the operator)

RECTIFIER :
Silicon diodes with RC network are used for rectification in bridge or doubler or multiplier or half wave circuit.


For further details

Call us at: +91-11-41425851 / 52
E-mail us at: info@re-india.com

Portable (Hipot) DC High Voltage Test Set Suppliers

Portable DC High Voltage Test Set is used for testing the underground cable for knowing the condition of cable-leakage at High Voltage. The units are supplied with 5 meter long input lead and 5 meter long output lead with sockets & clips. The unit comes with digital meters for easy readability with a test terminal for zero error.

SPECIAL FEATURES

  • Available in 30, 60, 75, 120, 150 & 220 kV models
  • Easy to operate
  • Digital meters for easy readability.
  • High Voltage Surge protection
  • Multiplier circuit for better life.




TECHNICAL SPECIFICATIONS

Input: 
220/230 Volts Single Phase 50Hz. Ac supply.

Output: 
15-220 kV

Capacity: 
150-2200W

Cooling: 
Naturally Air Cooled.

Control: 
SteplessRating : Continuous for testing duty.

HT CABLE: 
The equipment is supplied with five meters long cooper braided H.T. cable with HT plug and socket. The braiding remains on earth potential.

LT CABLE: 
For input supply ten meters long 3 core cable is provided.

ZERO START INTERLOCKING: 
This is to ensure that the H.T. shall not actuate if the voltage control knob is not at zero position.

EARTH INTERLOCKING: 
If proper earth is not connected the HT shall not actuate.

AUTO DISCHARGING ARRANGEMENT: 
The equipment consists of automatic cable discharging arrangement.

SOCKET: 
H.T. plug and socket has been especially developed by us with automatic earthing arrangement

METERS: 
mA meter and Volt meter are provided on H.T. side. The meters are well protected against surges and spikes.

OVER VOLTAGE PROTECTION: 
H.T. Automatically trips in case of output voltage exceeds the preset level.

SURGES AND SPIKES PROTECTION: 
During the testing surges or spikes are often generated due to short circuit. The equipment is fully protected against these.


For further details

Call us at: +91-11-41425851 / 52
E-mail us at: info@re-india.com

Continuous Type DC High Voltage Tester Manufacturers Delhi, UP, Haryana

This equipment is used for testing the underground cable, large Generator, Motor Transformer capacitor etc as per IS specification. The unit comes equipped with digital meters, motorized controls, one/two way computer interface, Emergency shut down and Optimum operator safety features.

SPECIAL FEATURES

  • Multiplier circuit for economy and better life.
  • Multiple interlocks for human safety.
  • Optional computer interface facility.
  • Available unto 1000 kV and 1 Amps.




TECHNICAL SPECIFICATIONS

TRANSFORMER:
A double wound step up transformer is used for boosting the voltage. The transformer is made of super enameled wire, CRGO core and polyster film/paper for insulation.

VOLTAGE CONTROL:
A step less auto-transformer is used for controlling the output from zero to maximum. The auto-transformer has built in arrangement for zero start interlocking.

INPUT VOLTAGE: 
230 or 400 volts single phase 50 Hz AC supply.

OUTPUT VOLTAGE: 
Upto 300 KV

CAPACITY: 
Upto 50mA on HV side.

RATING: 
Continous for testing and 15 minutes at full load

CONTROL:

  • Knob to control the output voltage from zero to maximum or push button n case of motorized model.
  • Knob to control the tripping current in steps.


METERING:
Moving coil / digital KV meter and milliamp meter will be provided to indicate output Voltage and leakage current.

TERMINATING:
The negative and positive terminals are brought out on suitable insulators. Positive or negative polarity can be supplied at Earth Potential on request.

PROTECTION:
The unit consists of fast acting DC relay which actuates instantaneously if the testing current goes beyond the pre-set level.b) The HV will not actuate if variac is not at zero position (To protect the transformer against transients on HV side & to protect the operator)

RECTIFIER:
Silicon diodes with RC network are used for rectification in bridge or doubler or multiplier or half wave circuit.



For further details

Call us at: +91-11-41425851 / 52
E-mail us at: info@re-india.com