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Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller
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Product information
High-quality Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller supplied by Narendra Electronics & Technology. Bulk wholesale pricing is negotiable. Inquiry for latest prices.
Operating Temp:
0 - 45 deg. C
Tap Resistance Input Range:
0 To 20k
Under Voltage Relay:
1 Normally Closed Relay Contact
Weight:
1.5 K Approx. Indication
Time Delay Range:
10 To 199 Seconds
Pt Voltage:
110 Volts Ac
Mains Voltage:
110 Volts Ac
Main Auxiliary Supply:
110V + 15% 50 HZ, 12VA
Specifications
Operating Temp:
0 - 45 deg. C
Tap Resistance Input Range:
0 To 20k
Under Voltage Relay:
1 Normally Closed Relay Contact
Weight:
1.5 K Approx. Indication
Time Delay Range:
10 To 199 Seconds
Pt Voltage:
110 Volts Ac
Mains Voltage:
110 Volts Ac
Main Auxiliary Supply:
110V + 15% 50 HZ, 12VA
PT Supply:
110V AC, 50HZ, 1 VA
Display Tap Position:
2 Digit
Voltage Increase Relay:
2 Relay Contacts, 5 Amp, 240v
Voltage Decrease Relay:
2 Relay Contacts, 5 Amp, 240v
Display Pt Voltage:
4 Digit
Tap Position Counter:
5 Digit Readable
Under Voltage Hysteresis:
5 Volts
Under Voltage Blocking Threshold:
80 Volts
Low Voltage Limit Range:
90 To 120 Volts
High Voltage Limit Range:
95 To 129 Volts
Terminal Common:
C
Computer Interface:
D Type 9 Pin Female Connector
Over Voltage Message:
Displayed
Under Voltage Message:
Displayed
Under Voltage Blocking:
Internal Blocking At 80V Restoration at 85V
Terminal Voltage Decrease:
Lr
Control Relays:
One Pair Of Normally Open Potential Free Contacts ,Rating 5A At 240 VAC Or 24 DC Resistive Load
Terminal Voltage Increase:
Rr
Pt Voltage Calibration Method:
Select Ac Parameter, Press Set Key, Enter Actual Pt Voltage Using Up Key And Shift Key, Hold Cnt Key, Press Set Key For 1 Second
Tap Position Calibration Method:
Select Tap Parameter, Press Set Key, Enter Actual Tap Position Using Up Key And Shift Key, Hold Cnt Key, Press Set Key For 1 Second
Dead Band Setting Method:
Set By Low Voltage And High Voltage Parameters In P1 And P2
Over Voltage Limit Parameter:
Set In Parameter P4, Not Used In This Instrument
Time Delay Setting:
Settable 10 - 199 Second
Low Voltage Setting:
Settable 90V To 120V
High Voltage Setting:
Settable 95V To 129V
Control Operation:
Single Pulse Operation With 2 Second (App.) Time
Trade Term:
To be discussed
Payment Term:
To be discussed
Terminal Under Voltage:
Uv
Voltage Increase Inhibition Condition:
When Voltage Falls Below Under Voltage Limit Or Pt Fails
Business Details
Country:
India
Business Types:
Not specified
Main Markets:
Not specified
Main Products:
Not specified
Year Established:
2016
Annual Revenue Amount:
Not specified
Numbers Of Employees:
Not specified
Preferred Payment Term:
Not specified
Preferred Trade Term:
Not specified
Port Of Loading:
Not specified
Product descriptions from the supplier
Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller
Introduction
The Micro-Controller Based Automatic Voltage Regulating Relay Model M98 is used for regulating the secondary voltage of Power Transformer with on load tap changer. The required dead band settings are set by low voltage & high voltage parameters. The time delay setting is set by delay parameter. The delay parameter use for momentary fluctuations of the regulated voltage. The reducing the number of operations of the tap changer.
When the regulated voltage falls below the under voltage limit, the control relays are automatically blocked i.e. there is no voltage correction & under voltage relay is open contact positions.
The Instrument has following features:
1. 2 Digit display : For Tap Position
2. 4 Digit display : For PT Voltage
3. Readable 5 digit tap position change counter
4. Under voltage Message display
5. Over voltage message display
6. 2 Relay contact 5 Amp. 240V provided for Voltage increase & Decrees.
7. 1 Relay contact( normally close) provided for under voltage.
8. D type 9 pin female connector provided for computer interfacing.
General Description
The dead-band (band width) can be set by setting low Voltage & High Voltage limits in parameter 1 (P1) parameter2 (P2). The desired time delay can be set in delay parameter (P3)
Operation of the voltage increase relay is automatically inhibited when the voltage falls below the specified under voltage limit or if PT fail.
Operating Instructions
1. Check the PT Auxiliary (Main) fuse connect the PT & Auxiliary supply to the appropriate terminals (PT I/P) and mains of the rear panel terminal block. In case separate main supply is not available, then the same PT supply can be connected both PT & mains terminals. Leave the unit ON for 5 minutes before making any new sitting.
2. Dead Band Settings :
Set the High Voltage and low voltage setting the setting are made through the front panel touch dome switches
3. Under Voltage Blocking
This is factory set at 80V, Note that between blocking and the release (Restoration) a hysterics 5V has been provided.
4. Time Delay:
Time is a variable content with variation from 10 to 199 Sec.
Programming parameters:
Parameter(P2)
In this parameter user can be set low voltage Limit .(90-120v)
Parameter (P1)
In this parameter user can be set high voltage Limit (95-129v)
Parameter (P3)
In this parameter user can be set Delay time (10-199seconds)
Parameter (P4)
In this parameter user can be set over voltage range limit.
Not use in this instrument.
Parameter (Tap)
In this parameter user can be calibrate tap position
Calibration:
Select tap parameter and press setkey display 0000
Now actual tap position feed on display by use up key(0-9)/shift(digit select) key and press and hold cntkey then press set key for 1 seconds after release both key now tap calibration complete.
AC voltage calibration (PT voltage)
In this parameter user can be calibrate PT voltage
Calibration:
Select AC parameter and press setkey display 000.0
Now actual PT voltage feed on display by use up key(0-9)/shift key(digit select) key and press and hold cntkey then press set key for 1 seconds after release both key now PT voltage calibration complete
Introduction
The Micro-Controller Based Automatic Voltage Regulating Relay Model M98 is used for regulating the secondary voltage of Power Transformer with on load tap changer. The required dead band settings are set by low voltage & high voltage parameters. The time delay setting is set by delay parameter. The delay parameter use for momentary fluctuations of the regulated voltage. The reducing the number of operations of the tap changer.
When the regulated voltage falls below the under voltage limit, the control relays are automatically blocked i.e. there is no voltage correction & under voltage relay is open contact positions.
The Instrument has following features:
1. 2 Digit display : For Tap Position
2. 4 Digit display : For PT Voltage
3. Readable 5 digit tap position change counter
4. Under voltage Message display
5. Over voltage message display
6. 2 Relay contact 5 Amp. 240V provided for Voltage increase & Decrees.
7. 1 Relay contact( normally close) provided for under voltage.
8. D type 9 pin female connector provided for computer interfacing.
General Description
The dead-band (band width) can be set by setting low Voltage & High Voltage limits in parameter 1 (P1) parameter2 (P2). The desired time delay can be set in delay parameter (P3)
Operation of the voltage increase relay is automatically inhibited when the voltage falls below the specified under voltage limit or if PT fail.
Operating Instructions
1. Check the PT Auxiliary (Main) fuse connect the PT & Auxiliary supply to the appropriate terminals (PT I/P) and mains of the rear panel terminal block. In case separate main supply is not available, then the same PT supply can be connected both PT & mains terminals. Leave the unit ON for 5 minutes before making any new sitting.
2. Dead Band Settings :
Set the High Voltage and low voltage setting the setting are made through the front panel touch dome switches
3. Under Voltage Blocking
This is factory set at 80V, Note that between blocking and the release (Restoration) a hysterics 5V has been provided.
4. Time Delay:
Time is a variable content with variation from 10 to 199 Sec.
Programming parameters:
Parameter(P2)
In this parameter user can be set low voltage Limit .(90-120v)
Parameter (P1)
In this parameter user can be set high voltage Limit (95-129v)
Parameter (P3)
In this parameter user can be set Delay time (10-199seconds)
Parameter (P4)
In this parameter user can be set over voltage range limit.
Not use in this instrument.
Parameter (Tap)
In this parameter user can be calibrate tap position
Calibration:
Select tap parameter and press setkey display 0000
Now actual tap position feed on display by use up key(0-9)/shift(digit select) key and press and hold cntkey then press set key for 1 seconds after release both key now tap calibration complete.
AC voltage calibration (PT voltage)
In this parameter user can be calibrate PT voltage
Calibration:
Select AC parameter and press setkey display 000.0
Now actual PT voltage feed on display by use up key(0-9)/shift key(digit select) key and press and hold cntkey then press set key for 1 seconds after release both key now PT voltage calibration complete
Control Relays
Connect the respective voltage increase & voltage decrease N/O Contacts on the rear Panel Terminal Blocks (LR, C, and RR)
Terminal details
C = Common Terminal
LR = Voltage Decrease relay
RR = Voltage Increase relay
UV = under voltage relay
Mains = 110 volts AC
PT = 110 volts AC
TAP = Tap resistance input (0-20k)
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3.6/5
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Narendra Electronics & Technology is a company based in India, established in 2016, and located at Meerut, India. The company offers products including Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller, Donnelly Chute Level Transmitter.
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Frequently Asked Questions (FAQs)
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You can contact verified India supplier Narendra Electronics & Technology through platforms like Freshdi.com to purchase Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller. For direct inquiries, please contact Narendra Electronics & Technology, the company’s representative. The supplier has a 3.6-star rating on Freshdi and has verified phone number. You’ll receive product details, pricing, and shipping terms directly from supplier.
What are the specifications of Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller from India?
Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller is sourced from India and meets international export standards. Key specifications include: Low Voltage Setting: Settable 90V To 120V, PT Supply: 110V AC, 50HZ, 1 VA, Time Delay Setting: Settable 10 - 199 Second, Main Auxiliary Supply: 110V + 15% 50 HZ, 12VA, High Voltage Setting: Settable 95V To 129V, Weight: 1.5 K Approx. Indication, Trade Term: To be discussed, Payment Term: To be discussed
What is the current price of Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller?
The supplier Narendra Electronics & Technology offers Automatic Voltage Regulating Relay Model M 98 Automatic OLTC Controller at negotiation.
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Negotiable
Min. order: Negotiable
Narendra Electronics & Technology
Year Established: 2016
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