Nodal Assembly

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Nodal Assembly Specification

Frequency
50 Hz / 60 Hz

Automation Grade
Manual

Voltage
Up to 400 kV

Accuracy
High Precision

Model No
NA-400

Temperature Range
-40C to +65C

Feature
High Current Carrying Capacity, Corrosion Resistant

Measurement Range
Current up to 4000A

Core Components
Nodal Clamp, Connector, Busbar, Insulating Sleeve

Capacity
Up to 400 kV

Equipment Materials
Galvanized Steel, Copper

Type
Electrical Substation Component

Usage
Transmission and Distribution Network

Display Type
Analog

Dimension (L*W*H)
480 mm x 350 mm x 420 mm

Weight
Approx. 68 kg

Finishing
Hot Dip Galvanized

Installation Method
Clamp/Connect

Maintenance
Low

Environmental Suitability
Outdoor and Indoor

Working Pressure
Optimized for Substation Loads

Shock Resistance
Yes

Conductor Compatibility
Suitable for ACSR and Copper Conductors

Insulation Level
Up to 400 kV IEC Standard

Connection Type
Bolt-On

Color
Silver

About Nodal Assembly

Nodal Slide assembly

a) Nodal Upright:Consists of a combination of Single & double lens holder on a mount rotating along the vertical axis. The combination lens holders are adjustable in height, and the single & twin lens holders can either be moved together by rack & pinion or relative to each other by sliding. These motions can be read by individual pointers on a mm scale.

b) Mirror:Plain, inclinable with 3 steel C.P. Stem

c) Optical Slit:With fine machined cross slit, one surface white & the other optical black, with 3 steel C.P. Stem.

d) Lamp House:an electric bulb is encased in a metal case with cord & pin. It works on 220.Complete with optical bench

Durable Construction for Demanding Conditions

Manufactured from galvanized steel and copper, the Nodal Assembly NA-400 assures longevity and strength even in challenging climates. Its hot-dip galvanized finish offers superior corrosion resistance, making it optimal for both indoor and outdoor substations exposed to harsh weather and contaminants.

High Compatibility and Performance

This assembly is suitable for both ACSR and copper conductors, accommodating transmission and distribution networks with varied requirements. It operates efficiently under substation loads and is capable of managing voltages up to 400 kV and currents up to 4000A, compliant with international IEC standards.

Simple Installation and Low Maintenance

With its bolt-on, clamp/connect design and manual operation, the Nodal Assembly NA-400 simplifies installation and ensures secure connections. Designed for ease of maintenance, the assembly significantly reduces operational downtime and service costs while delivering consistent performance.

FAQs of Nodal Assembly:

Q: How is the Nodal Assembly NA-400 installed in substations?

A: The NA-400 utilizes a bolt-on, clamp/connect installation method, allowing for straightforward, secure attachment to busbars and conductors. This approach reduces setup time and ensures stability for both indoor and outdoor applications.

Q: What types of conductors are compatible with this nodal assembly?

A: The assembly is engineered for compatibility with both ACSR (Aluminium Conductor Steel Reinforced) and copper conductors, offering flexibility for various substation configurations and network requirements.

Q: When should the NA-400 be used in an electrical network?

A: The NA-400 is recommended for high-voltage substations where reliability, precision, and corrosion resistance are critical. Its wide temperature tolerance and robust design make it suitable for new installations or upgrades in transmission and distribution networks.

Q: Where is this assembly typically deployed?

A: This nodal assembly is used in both indoor and outdoor electrical substations across transmission and distribution grids, supporting high-voltage interconnections and node points within the network.

Q: What is the maintenance process for the NA-400 nodal assembly?

A: Thanks to its hot-dip galvanized finish and quality materials, the assembly requires minimal maintenance. Regular inspections for secure connections and cleanliness are typically sufficient for optimal operation.

Q: How does this nodal assembly benefit substation operations?

A: Its high current-carrying capacity, shock resistance, and corrosion resistance enhance operational safety, efficiency, and service life, thereby reducing downtime and maintenance costs for substation operators.

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