Industrial & Utility Grade Panels
Explore LT/HT panel families with manufacturing & testing workflows. Specs can be tailored for CPRI/BIS, DISCOM/CEIG approvals, and project-specific standards.
Overview
LT Panels
HT Panels
Manufacturing
Testing & QA
Scope & Philosophy
Our panel systems are engineered for performance, safety and maintainability. We align with utility interlocks, site constructability, and long-term serviceability.
CPRI/BIS-ready
CEIG/DISCOM
Form-2/3/4
ARC/Coordination
Core Design Tenets
Correct **fault level** & kAIC, temperature-rise & busbar derating per ambient/grouping.
IP protection & **Form of Separation (2/3/4)** with shrouds, interlocks, safe maintenance clearances.
Selection of **AIC/TR/IP** for breakers & enclosures, segregation for metering/control/drive sections.
Protection coordination with upstream/downstream—**ETAP/equivalent studies** on request.
Low Tension (LT) Panels
Designed for 415V systems with robust busbar architecture, coordinated protection and ergonomic maintenance access.
PCC/MCC
APFC/Hybrid PFC
Sync/AMF-ATS
Feeder Pillar / DBs
1) PCC (Power Control Center)
Main Incomer(s) with ACB/MCCB (fixed/draw-out), **bus couplers**, tie feeders; preventive arc design.
Busbars: ETP Cu/Al, **electrolytic grade**, epoxy sleeving/heat-shrink; temp-rise & short-circuit withstand accounted.
Metering: multi-function meters, demand logging, energy segregation; **PF, kW, kVAh** visibility.
Form-2/3/4 segregation, IP54/55 (indoor) or IP65 kiosks (outdoor) per site conditions.
2) MCC (Motor Control Center)
Feeder architecture: DOL/SD/Star-Delta, **VFD**/Soft-starter drawers, interlocks & mechanical keying.
Dedicated **cable alleys**, labeled terminals, marshalling; maintenance access & heat management.
OL/SC protection coordination with upstream MCCB/ACB; **Type-2 coordination** on request.
3) APFC / Hybrid PFC
kVAR sizing from load profile; **detuned reactors** (5.67%/7%/14%) to control harmonics.
Heavy-duty contactors/thyristor switching, chamber ventilation & thermal safety.
Hybrid solutions with **Active Filters** for THD control & PF improvement.
4) Synchronization / AMF-ATS
DG-DG / DG-Mains sync logic, dead-bus/live-bus, soft loading/unloading, breaker interlocks.
**AMF-ATS** with source health, time delays, load shedding, black start & safety permissives.
Event logs, alarms, communication to SCADA/PLC as required.
5) Feeder Pillars & Distribution Boards
Outdoor **IP65** kiosks, surge protection, gland plates & cable interface ergonomics.
DBs: SPN/TPN with MCB/MCCB/RCBO, **selective coordination**, clear circuit identification.
6) Relay/Metering & Automation
Protection: OCR/EF/SEF, earth-fault/inst/dir relays, thermal overload; CT/PT selection & burden check.
Automation: PLC/SCADA interfacing, I/O list, comms (Modbus/Profinet/Ethernet), panel HMI.
Material & Build Quality
CRCA 1.6/2.0/2.5mm enclosures, 7–9 tank pre-treatment, powder coating 60–80µ.
PE/FR gaskets, anti-condensation heaters, RAL/brand color per spec.
High Tension (HT) Panels — 11/33 kV
Vacuum/SF₆ switchgear with protection & interlocking schemes for utility/industrial feeders.
VCB Panels
SF₆ / Ring Main Unit
Indoor/Outdoor IP
CEIG/CEA Ready
1) VCB Panels (Indoor)
Draw-out VCBs with truck interlocks, **shutters**, key interlocks; racking with safety permissives.
Relays: **O/C, E/F, SEF, 50/51/50N/51N**, directional where required; synch-check, UV/OV.
CT/PT selection (class/VA/burden), busbar insulation, **arc-ducts** (if specified), cable CTs.
2) SF₆ / RMU (Outdoor/Compact)
Ring arrangement for redundancy, load break switches, fault indicators, **gas monitoring**.
Cable terminations (heat-shrink/cold-shrink), surge arresters, earthing pads & kiosks.
3) Interface & Compliance
DISCOM metering cubicles, **CEA/CEIG** safety, earthing & clearances, danger boards.
Protection coordination & settings sheet; inter-panel interlocks and mimic diagrams.
Manufacturing Workflow
CNC-grade fabrication with controlled finishing & traceable assembly ensures repeatability and field serviceability.
CNC/Shearing/Bending
7–9 Tank PT
Powder 60–80µ
Torque-Marked
Sheet Metal & Finish
CRCA cutting/bending (CNC), **spot/CO₂ welding**, grinding & de-burring.
7–9 tank pre-treatment (degrease, phosphate), **powder coating** with curing; RAL/brand color.
Busbar & Wiring
ETP Cu/Al busbars, epoxy sleeve/heat-shrink; supports with **FRP/SMC**; edge rounding & burr-free.
Control wiring: ferruled, color-coded, **numbered terminals**, ducts & tie-downs, segregation maintained.
Assembly & Documentation
Module-wise assembly with ITP checkpoints; torque values recorded & **paint-marked**.
GA, SLD, wiring diagrams, BoM, **as-built** and O&M packs as deliverables.
Routine Tests & QA (Indicative)
Factory routine/acceptance tests as per IS/IEC. Type tests (CPRI) can be provided where required/spec’d.
IR/PI
Hi-Pot
DLRO
Primary/Secondary Inj.
Electrical Tests
IR/PI (Megger): main/control circuits insulation health.Hi-Pot: dielectric withstand across phases & to earth (as applicable).DLRO: busbar/joint contact resistance.Primary/Secondary Injection: relay operation, CT/PT polarity & ratio verification.
Mechanical/Functional & PQ
Breaker operation, **interlocks**, mimic/annunciation, spring charge, racking (draw-out) checks.
Wiring continuity, labeling, lamp/test, space heater & thermostats, ventilation path.
Thermal scanning on trials, PQ checks, event log verification (if comms enabled).
Documentation & Standards
FAT protocols, QA checklists, torque sheets, certificates & test reports packed with panels.
Standards (indicative): IS 8623/IEC 61439 (LT), IS/IEC for switchgear/VCB/RMU, IS 3043 (Earthing), IS 732 (Installations), IEEE 519 (Harmonics).
Why our panels
Correct fault-level/kAIC & thermal derating built-in.
Form-2/3/4 segregation, IP per site, safe maintenance clearances.
Study-backed protection coordination & labeled wiring.
Quick Highlights
PCC/MCC/APFC
Sync & AMF-ATS
VCB/SF₆ RMU
FAT & Docs
Need a project-specific **SLD/GA** or **study pack** (Load flow, SC, coordination)? We can tailor & submit for approvals.
