Relco Electricals India Private Limited

Our Disc Fitting for ACSR Rabbit is made using cutting edge technology operated by highly skilled technocrats. Our Disc Fitting is made with precision and our quality guidelines are as per the international quality standards to ensure cost effectiveness and high value to our esteemed clients. We conduct stringent quality checks in our unit at several stages of manufacturing of the Disc Fitting before the final dispatch. Apart from that, Rashtriya Electrical & Engg. Corp. makes sure that it upgrades its technological configurations in accordance with the industrial innovations. Further, the exhaustive research in the field of Disc Fitting enables the company to understand the market insights.

Parallel Groove Clamp connector is a conductor designed for the purpose of connecting two or more conductors whose axes are parallel to each other.

Parallel Groove Clamp also called PG Clamp are primarily intended to establish electrical connection between conductors, aluminium to aluminium or aluminium to copper or copper to copper conductors, between equipment and conductors, etc, in places like substations and generating stations.

As per IS 5561 : 2018 (Electric Power Connectors), originally IS 5561 : 1970. Our product also conform to ANSI/ NEMA CC1 : 2009 (Electric power connectors for substation), IEC 61284 : 1997 (Overhead lines — Requirement and tests for fittings, IS/IEC 62271 (Part 1) : 2007 (High-voltage switchgear and control gear — Part 1: Common specifications), IS 2121 (Part 4) : 1991 (Non Tension Joints - Specifications)

The rated normal current of PG clamp is ther.m.s value of the current which carry continuously under specified conditions of use and behaviour and can be selected from one of the following values:200 A, 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3000 A or 3150 A or as recommended by the conductor manufacturer.

• All material conform to the relevant Standard
• The chemical composition of aluminium and aluminium alloys used in Parallel Groove Clamp conform to designation 4600 of IS 617, AL6 of IS 617, LM6 or AlSi10Mg(a) of IS 617:2024.
• Steel bolts and nuts conform to IS 1367
• Spring washers are electro-galvanized mild steel suitable for service condition-3 as per IS 1573.

Definition
Tee Clamp or Tee Connector also known as T Clamp or T Connector is a connector designed for the purpose of connecting two conductors whose axes are perpendicular to each other.

Application/ Useage
Tee Connector also called T Clamp are primarily intended to establish electrical connection between conductors, aluminium to aluminium or aluminium to copper or copper to copper conductors, between equipment and conductors, etc, in places like substations and generating stations.

Relevant Standard
As per IS 5561 : 2018 (Electric Power Connectors), originally IS 5561 : 1970. Our product also conform to ANSI/ NEMA CC1 : 2009 (Electric power connectors for substation), IEC 61284 : 1997 (Overhead lines — Requirement and tests for fittings, IS/IEC 62271 (Part 1) : 2007 (High-voltage switchgear and control gear — Part 1: Common specifications), IS 2121 (Part 4) : 1991 (Non Tension Joints - Specifications)

Rated Normal Current
The rated normal current of Tee Connector is ther.m.s value of the current which carry continuously under specified conditions of use and behaviour and can be selected from one of the following values: 200 A, 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3000 A or 3150 A or as recommended by the conductor manufacturer.

Material

• All material conform to the relevant Standard
• The chemical composition of aluminium and aluminium alloys used in Tee Connector conform to designation 4600 of IS 617, AL6 of IS 617, LM6 or AlSi10Mg(a) of IS 617:2024.
• Steel bolts and nuts conform to IS 1367
• Spring washers are electro-galvanized mild steel suitable for service condition-3 as per IS 1573.

Definition
An Equipment Connector is a connector designed for the purpose of connecting the terminal of the equipment to the conductor(s). Terminal pad (or) Round terminal stud.


Application/ Useage
Equipment Connector also called Terminal Pad Clamps are primarily intended to establish electrical connection between conductors, aluminium to aluminium or aluminium to copper or copper to copper conductors, between equipment and conductors, etc, in places like substations and generating stations.


Relevant Standard
As per IS 5561 : 2018 (Electric Power Connectors), originally IS 5561 : 1970. Our product also conform to ANSI/ NEMA CC1 : 2009 (Electric power connectors for substation), BS 159 : 1992 (Busbar and busbar connections), BS 3288-1:2014 (Insulator and conductor fittings for overhead power lines: Part 1 Performance and
general requirements) IEC 61284 : 1997 (Overhead lines — Requirement and tests for fittings, IS/IEC 62271 (Part 1) : 2007 (High-voltage switchgear and control gear — Part 1: Common specifications), IS 2121 (Part 4) : 1991 (Non Tension Joints - Specifications)


Rated Normal Current
The rated normal current of Terminal Pad is the r.m.s value of the current which carry continuously under specified conditions of use and behaviour and can be selected from one of the following values:200 A, 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3000 A or 3150 A or as recommended by the conductor manufacturer.


Material

• All material conform to the relevant Standard
• The chemical composition of aluminium and aluminium alloys used in Terminal Pad conform to designation 4600 of IS 617, AL6 of IS 617, LM6 or AlSi10Mg(a) of IS 617:2024.
• Steel bolts and nuts conform to IS 1367
• Spring washers are electro-galvanized mild steel suitable for service condition-3 as per IS 1573.

A CT-PT clamp, also known as a current transformer and potential transformer clamp, is a specialized device used in electrical power systems to secure and support current transformers (CTs) and potential transformers (PTs) to mounting structures such as poles, walls, or equipment frames. These clamps are crucial for ensuring the proper operation, accuracy, and safety of these transformers in power distribution and measurement applications. Here's a detailed explanation of CT-PT clamps:

Components and Construction

1. Materials:

   • CT-PT clamps are typically made from durable and corrosion-resistant materials such as stainless steel or galvanized steel to withstand outdoor conditions.
   • They may include insulating materials or coatings to prevent electrical contact between the clamp and the transformer windings.

2. Design:

   • CT-PT clamps are designed to securely hold CTs and PTs in place, preventing movement or displacement due to environmental factors like wind, vibrations, or mechanical stresses.
   • The design ensures that the transformers maintain their position and alignment relative to the conductors or busbars they are measuring or supplying.

Installation and Mounting

1. Mounting Structure:

   • CT-PT clamps can be mounted on various structures including poles, walls, equipment racks, or busbars within electrical substations.
   • They are designed to accommodate different mounting configurations to suit the specific requirements of the installation site.

2. Securing Mechanism:

   • CT-PT clamps typically use bolts, nuts, or straps to secure the transformers firmly to the mounting structure.
   • The clamping mechanism ensures that the transformers remain stable and aligned during operation, preventing potential errors in current or voltage measurement.

Functions and Importance

1. Alignment and Stability:

   • By securely holding CTs and PTs in place, the clamp ensures accurate alignment with the conductors or busbars they are connected to.
   • Proper alignment is crucial for accurate measurement and monitoring of electrical parameters such as current and voltage in power systems.

Types of CT-PT Clamps

1. Adjustable Clamps:

   • Allow for adjustment to accommodate different transformer sizes or mounting configurations.
   • Useful in situations where flexibility in positioning or alignment is required.

2. Fixed Clamps:

   • Designed for specific transformer sizes and mounting setups.
   • Provide a stable and secure mounting solution without the need for frequent adjustments.

Installation Considerations

1. Transformer Size and Weight:

   • Select a clamp that can safely support the weight and dimensions of the CT or PT being installed.
   • Ensure the clamp is rated for the maximum load and environmental conditions of the installation site.

2. Environmental Conditions:

   • Choose materials and coatings that provide protection against corrosion, UV exposure, and other environmental factors.
   • Ensure the clamp maintains its integrity and performance over the operational lifetime of the transformers.

Standards and Compliance

1. Industry Standards:
   • CT-PT clamps should comply with relevant industry standards and regulations (e.g., IEEE, IEC) regarding electrical equipment and safety.
   • Compliance ensures that the clamps meet minimum requirements for performance, durability, and safety in electrical installations.