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Pradeep Sales & Service

What We Offer

Our team of experts maintains a strict vigil and runs regular checks on the quality of products that are sourced before they are dispatched. Our range of products include:


Digital Automatic Voltage Regulating Relay
Digital Automatic Voltage Regulating Relay

  • Microcontroller - based LTC Transformer and regulator control provides reliable operation and expanded capabilities.

  • Interfaces with conversion front panels sized to replace popular industry tapchanger controls.

  • Serial communication ports with several on board communication protocols.

  • Two active serial communication ports through RS-232,RS-485, or Fiber Optics.

  • Field updatable programming

  • Reverse power detection /operation

  • Demand matering

  • Time/date stamping of maximum /minimum system conditions.

  • Data logging of metered parameters.

  • Self-test alarm and user-programmable alarm

  • Line overcurrent tapchange inhibit

  • Transformer parallelling by circulating current method/external master follower cicultry

  • LDC with R & X or Z-compression.

  • Can be configured for various tap position ranges.

  • Definite or inverse Time Delay

  • Voltage limits with automatic runback, tap position limits.

  • Both 50 & 60 Hz models available

  • UL Listed.

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    Digital Tap Position Indicator
    Digital Tap Position Indicator

    Annex. A : Application,Specifications and Features
    of Various Models of Tap Postion Indicators

    Sl. Feature TDC 2001 TPC 2001 REP 2002 PX 2000 PX 2001 PX 2002
    1. Application Indication of operating tap No. Indication of operating tap No. Repeat Indication of
    operating tap No.
    		 Indication of
    operating tap No.,
    Voltage and count of tap change operations
    		 Indication of
    operating tap No.,
    Voltage and count of tap change operations
    		 Indication of
    operating tap No.,
    Voltage
    2. Mounting Flush Mounting Flush Mounting Flush Mounting Flush Mounting Flush Mounting Flush Mounting
    3. Optional Instruments - Repeater Model REP 2002 Repeater Model REP 2002 Repeater Model REP 2002 Repeater Model REP 2002 Repeater Model REP 2002
    4. Tap Range 1 -70 positions 1 -70 positions 1 -70 positions 1 -70 positions 1 -70 positions 1 -70 positions
    5. Auxiliary Supply 110-230V AC or
    90-270V AC/DC
    		 90-270V AC/DC 90-270V AC/DC 90-270V AC/DC 90-270V AC/DC 90-270V AC/DC
    6. Output - One Output 4 -20 mA Optional One Output 4 -20 mA One Output 4 -20 mA One Output 4 -20 mA

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    Automatic Power Factor Control
    Automatic Power Factor Control

    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)

    Change password : Change password (0000 to 9999)

    Enter Password : Enter Password (0000 to 9999)

    Wrong Password : Incorrect Password.

    ONLINE MODE MESSAGES :

  • OverVtg : Over Volatage.

  • UnderVtg : Under Voltage

  • UnderCurr : Under Current

  • OvercComp : Over Compensation

  • UnderComp : Under Compensation

  • Ct. conn : Incorrect CT Connetion

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    Annuciator
    Annuciator

    Annuciator Model Features

    Sl. PSS 400 PSS 500> PSS 401 PSS 350 PSS 351 PSS 352 PSS 353PSS 400
    1. System Content ANN ANN ANN ANN ANN ANNANN ANN
    2. Overall dim 96 X 96 X 150 260 X 145 220 X 170 220 X 170 220 X 170 170 X 220170 X 220 285 x 140
    3. Cutout 92 X 92mm 230 X 145 205 X 155 205 X 155 205 X 155 155 X 205155 X 205 285 X 140
    4. Window Size 30 X 40mm 25 X 60 45 X45 45 X45 45 X45 45 X4545 X45 45 X45
    5. No. of Windows 14W 6 -8 W 9 - 10W 1 - 8W 1 -12W 1 - 12V1 -8WV 1 - 20W

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    Digital Temprature - Scanner
    Digital Temprature - Scanner

    Temperature SensorRTD (Pt 100 DIN 43760)
    Number of Sensor Inputs6 Nos. or 8 Nos. Max
    No. of Set Points2 Nos. + 2 Nos. optional
    Resolution1oC or 1oC Opt.
    Accuracy+- 0.5% of F.S.
    Dead Band (Hystersis)User Settable (0 to 9 oC
    Display Scan TimeSeven segment,12.5 mm RED LED
    1 digit display for channel no
    4 digit display for temperature
    Error Setting+-10oC
    Indications (additional) a) RED LED to indicate Power On
    b) Yellow LED Auto Manual
    c) Green LED Alarm (relay)
    d) Green LED for very high (Relay)
    f)Green LED for Fan (Relay)
    g) Blue LED for sensor Fault
    Overall Size96 X 96 X 150
    Cutout Size92 X 92 X 150


    Electrical
    Supply Voltage90 V to 260 V AC/DC Voltage
    OutputTwo N/O Contacts (5A at 240V AC or 10A at 110V AC
    Analog OutputOne analog o/p 4-20mA, 1k burden
    one analog o/p 4-20mA, (Optional)
    TerminalsScrew Caged suitable for 0.2 - 4 sq.mm. solid conductors
    InsulationInsulation resistance > 100 M at 500 V DC
    between each Terminal proof between all mains supply terminals shorted
    together & earth - no break down for one minute.
    - Factory tested at 1.5 kV rms, 50 Hz.
    - Susequent field test at 0.5 rms, 50 Hz
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    RTD System
    RTD System

    Annex. B : Features of various Models of RWTI Series RTD-100/W
    Sl. Feature RTD 2000 RTD 2000 A RTD 2000 B RTD 2000 C RTD 2000 D
    1. System Content Pt.100 sensor, Shunt
    resistor box & indicator
    with inbuilt CCU
    		 Pt 100 sensor, shunt
    resistor box & indicator
    with inbuilt CCU
    		Pt.100 sensor, Shunt
    resistor box & indicator
    with inbuilt CCU
    		 Pt.100 sensor, Shunt
    resistor box & indicator
    with inbuilt CCU
    		 Pt.100 sensor, Shunt
    resistor box & indicator
    with inbuilt CCU
    2. Overall Dim. 96 X 96 X 150mm 96 X 96 X 150mm 96 X 96 X 150mm 96 X 96 X 150mm 96 X 96 X 150mm
    3. Panel Cutout 92 X 92mm P92 X 92mm 92 X 92mm 92 X 92mm 92 X 92mm
    4. Mounting Flush Mounting Flush Mounting Flush Mounting Flush Mounting Flush Mounting
    5. Display 3 digits,7 segment LED
    12.7 mm ht.
    		 3 digits,7 segment LED
    12.7 mm ht.
    		 3 digits,7 segment LED
    12.7 mm ht.
    		 3 digits,7 segment LED
    12.7 mm ht.
    		 3 digits,7 segment LED
    12.7 mm ht.
    6. Temperature Range 0-150o C (STD)
    temp.can be set - 50
    500oC
    		 0-150o C (STD)
    temp.can be set - 50
    500oC
    		0-150o C (STD)
    temp.can be set - 50
    500oC
    		 0-150o C (STD)
    temp.can be set - 50
    500oC
    		 0-150o C (STD)
    temp.can be set - 50
    500oC

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    Remote Winding Temerature
    Remote Winding Temerature

    Salient Features :

    The microprocessor based, model - WTC 2002 / OTC 2003 is distinguished for its features, construction, operation and cost effectiveness. The Versatility of this model is a result of careful consideration and understanding of the wide spectrum of the user needs and convenience, whether during testing or online operation.

    This instrument is designed using state of the art integrated circuits (IC), and glass epoxy Circuit Boards (PCB). It is easy to configure this instrument as the same is very user friendly. The instrument incorporates a stabilized power supply and filter circuit for absorbing power supply transients, thus ensuring accurate control / and a stable disply. The out put is displayed and has a viewing distance of more than 4 meter.

    BURN - IN :
    Each instrument is tested and aged at ambient conditions for 48 hours in electrically energized condition prior to delivery as per Pradeep's norms for verification of design reliability. This practice ensures the unit's continued performance to specifications and to customers satisfaction.

    Type Tests :
    Repeated series models are type tested at ERTL (West), STQC, Govt of India for following :
  • EMC Test : As per IEC - 61000 - 4 - 2 : 1995 for ESD and for HED.


  • Impact Shock Test as per IS 9000 ( Pt.VII) : 1997.


  • Cold and Dry Heat Test as per IS 9000 (Pt.II) : 1997.


    • Additional important Features :
    a. Range can be set lower side and higher side.
    b. Having the facility of Error Setting to compensate the line drop or hold.
    c. Having the facility of 4-20 mA output optional on demand.
    c. Having the facility to check all the segments by pressing "SET" Key.
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    Electronic Hooter
    Electronic Hooter

    Features

  • High Audio Output : 90 to 125 dB

  • Single supply : 12V AC/DC, 24V AC/DC, 48V AC/DC,
    110 VAC, 230 VAC
    or Univeral Supply : 24 - 240 V AC/DC

  • Din standard (96 X 96 X 65 mm) Panel / Wall mounting.
    Cut-out 92 (W) X 92 (H) mm

  • Tone & Volume Adjustable

  • Custom Models with multiple tones / Musical tones

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    Current Converter Unit
    Current Converter Unit

    Annex.A :Features of Various Model of RTT - 3000

    Sl. Features CCUPT 203 CCUO 201 CCUT 202
    1. Application Measurement of Winding Temperature Measurement of Top Oil Temerature Incication of operating Tap no.
    of transformer fitted with OLTD
    2. System Contents Sensor with PT- 100 insert
    & heater Shunt resistor unit
    Current Converter Unit (CCU)
    		 Sensor with PT -100 insert
    Current Converter Unit (CCU)
    		Current Converter Unit (CCU)
    3. Mounting Rail Mounting Rail Mounting Rail Mounting
    4. Temperature Range 0 - 150 deg. c However
    temp. range can be set
    up to -50 deg to 400 deg. C if required
    		 0 - 150 deg. c However
    temp. range can be set
    up to -50 deg to 400 deg. C if required
    		 N.A
    5. Auxiliary Supply 90 - 260 V ac/dc 90 - 260 V ac/dc 90 - 260 V ac/dc
    6. Output Two outputs 4 - 20 mA at 500 mA at
    500 Ohm burden each
    		 Two outputs 4 - 20 mA at 500 mA at
    500 Ohm burden each
    		 Two outputs 4 - 20 mA at 500 mA at
    500 Ohm burden each

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    Current Transformer (CT)
    Current Transformer (CT)

    Product Description

    The series CT can be applied to test, control, display and record the running of the equipment against the damage in the AC circuit with the running of the electrical equipment, and to protect the equipment against the damage in the AC circuit with the rated voltage below 600V and the frequency of 50/60Hz. The products can be also applied to from a complete set of mine transformer.
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    Automatic Servo Voltage Stabilizer
    Automatic Servo Voltage Stabilizer

    Digital Servo Voltage Stabilizer Control Card
    Digital Servo Voltage Control Module is equipped with an advanced Microcontroller Technology with self-controllable Design. It requires minimum external wiring for fast production of Servo Voltage Stabilizers.
    The Main Features:
    Display Module: To display the input and output voltages simultaneously.
    Protection: The output voltage is disconnected, incase the feedback to the control card is disconnected or loose connected.
    Programming: The Stabilizer Control Card can be programmed for the below parameters:

  • Low voltage cut off set Display shows-Lo

  • High voltage cut off set Display shows-Hi

  • Time delay relay set (TDR) Display shows-tdr

  • Hysteresis Display shows-HYS


    • Low Voltage cut off:
    This value can be changed from 160V to 210V. Whenever there is any fluctuation present in the power supply to the extent that output voltage has turned out to be below this set voltage range then relay switches OFF.

    High Voltage cut off:
    This value can be changed from 220V to 254V. Whenever there is any fluctuation present in the power supply to the extent that output voltage has turned out to be above this set voltage range then relay switches OFF.

    Time Delay Relay:
    This value can be programmed from 15 sec to 180 sec. Whenever the output voltage goes beyond the low and high voltage range, the relay switches off. When the output voltage has reached in this range and now this much time (which has been programmed in TDR) is introduced and after this the relay turns ON.
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    Local Winding Temperature Indicator
    Local Winding Temperature Indicator

    The Temperature time constant of heater assembly is almost same as that of transformer winding and hence response to the change of transformer winding temperature by heater and in turn instrument is fast.

    Specifications
    Actual temperature display ch 1 WTI)3 digit, 0.5 inch high,
    7 segment red LED
    Temperature range0 - 150 deg. C
    Resolution1.0 deg. C
    Actual temperature display ch 2 WTI)3 digit, 0.5 inch high,
    7 segment red LED
    Temperature range0 - 150 deg. C
    Resolution1.0 deg. C
    Output
    4 - 20 mA analogue output 14 - 20 ma analogue output 1 corrosponds to
    to - 0-150 deg. C
    4 - 20 mA analogue output 24 - 20 ma analogue output 1 corrosponds to
    to - 0-150 deg. C
    Relay Settings :
    Set 1 to Set 10 Temp. DisplayPair of 3 digit, 0.5 inch high, 7 segment red
    LED for High and Low Setting
    Temperature setting range1- 150 deg. C
    Operating ambient temperature0- 150 deg. C
    Power Supply90 V to 260 V ac / dc
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