NMX‑EVC‑350 / Rev 00 / IEC 61851 · IS 17017 / Noida · India 2026 · Product Page

NMX-EVC-350 · ENGINEERED TO ORDER — EV CHARGER TEST SYSTEMS

The grid on one side, a vehicle that isn’t there on the other.

Name: EV Charger & EVSE Test System
Brand: Neometrix

EV charger & EVSE test systems — a programmable grid simulator feeds the charger the grid as it really is; a bidirectional battery emulator (0–1,000 V) is the vehicle it believes it is charging. Between them: IEC 61851 signalling, ISO 15118 / DIN 70121 communication, OCPP backend conformance, safety to the 6 kV class — and multi-station regenerative ageing banks that run tens of chargers around the clock. AC 7–22 kW to DC 350 kW class. Engineered to order — the reference configuration on this page has not yet been built.

Enquire — charger test Capability sheet (PDF)

Illustrative image, not a delivered installation — an EV charger test laboratory: a DC fast-charger cabinet under test with its CCS cable plugged into a test receptacle panel, flanked by a grey grid-simulator cabinet and an emulator rack, with an engineer's bench of dark instruments in the foreground

Fig · 01 Charger under test between grid simulator and battery emulator — illustrative, not a delivered installation

DC class

350kW · CCS2

Emulation

1,000V · bidirectional

Safety

6kV withstand

Ageing bank

24×7multi-station

Protocols

15118· 61851 · OCPP

ISO 9001 / 14001 Engineered to order IEC 61851 · IS 17017 · ISO 15118 executed 17025-traceable calibration in scope of supply Noida · India

Overview

A charger lives between two strangers. Test it against both.

Every charger spends its life negotiating between a grid it cannot control and a vehicle it has never met. Testing it properly means reproducing both strangers at will — a grid that misbehaves on command, and a vehicle whose battery, protocol stack and manners are exactly what the test plan says they are.

Illustrative image, not a delivered installation — close-up of a CCS2 charging connector seated in a test receptacle on an instrumented panel, with heavy DC cables strain-relieved into trunking and a pair of measurement probes clipped to test points beside the receptacle

Fig · 02 The connector is a measurement point — signalling, power and temperature all live here — illustrative, not a delivered installation

The grid stranger. A programmable 1φ/3φ source in the tens-of-kVA class plays the grid as it actually is: high line, low line, frequency drift, sags, swells, distortion. A charger that only ever met nominal supply in the lab meets everything else in the field — better it happens here.

The vehicle stranger. The bidirectional battery emulator (0–1,000 V class) presents a pack at any state of charge, with realistic voltage behaviour and dynamics, and absorbs full power regeneratively — so a 350 kW test doesn’t become 350 kW of heat. Every fill is repeatable because the “vehicle” is always exactly where the test plan parked it.

And the conversation between them. Control-pilot states per IEC 61851, high-level communication per ISO 15118 / DIN 70121, backend behaviour against OCPP simulation — because most field failures are not power failures; they are two computers failing to agree before power ever flows.

Reliability is a different question again: not “does it work?” but “does it still work on the ten-thousandth session?” That is what the ageing banks exist to answer.

Engineered to Order

Sized to the chargers and the certification route

Power classes, station counts, protocol depth and chamber pairing follow from what is being tested — a 7 kW AC wallbox line or a 350 kW DC corridor charger — and the standards it must clear. Engineered against India’s charging build-out; no order followed, so no delivered system is claimed.

Type Test · Endurance

Prove the design, then prove the decade

One bench answers the certification question; the multi-station bank answers the reliability one — tens of chargers cycling 24×7 on profile-driven schedules, each station logged and limit-watched, energy returned through regenerative loads.

The Family Closes

Thermal and electromagnetic, next door

Chargers derate in heat and must coexist on the spectrum: thermal soak comes from the Neometrix climatic chamber line, EMC from the EMI/EMC laboratory — the same qualification family, one supplier.

Architecture

Two emulated strangers, one instrumented handshake.

The schematic below is the whole laboratory: grid simulation on one side, battery emulation on the other, the protocol stack exercised between them, and the ageing bank where the same architecture runs wide instead of deep.

FIG · 03SYSTEM ARCHITECTURE · GRID SIMULATION · PROTOCOL CONFORMANCE · BATTERY EMULATION · AGEING BANK

Fig · 03 Power flows grid-simulator → charger → emulator and back to the bus; the conversation flows CP/PP → ISO 15118 → OCPP; the ageing bank multiplies the loop by tens of stations

Arc · 01

Grid Simulation

A programmable AC source in the tens-of-kVA class applies voltage and frequency deviation, sags, swells and THD on schedule. Input power factor, harmonics and standby draw are measured across the load range — the charger characterised as a grid citizen, not just a power converter.

Arc · 02

Protocol Conformance

IEC 61851 control-pilot and proximity states walked through their full matrix; ISO 15118 / DIN 70121 sessions negotiated, interrupted and resumed; OCPP backends simulated for authorisation, metering and remote commands. Most field tickets are handshake tickets — this is where they are prevented.

Arc · 03

Battery Emulation & Safety

The 0–1,000 V bidirectional emulator presents any pack, any SoC, with realistic dynamics — and absorbs full power regeneratively. Around it, the safety suite: HV withstand to the 6 kV class, IR, earth continuity, RCD behaviour — the tests that keep a charger from ever becoming the news.

Arc · 04

The Ageing Bank

Tens of stations, 24×7, profile-driven — connect, negotiate, charge, disconnect, again — with per-station logging, limit supervision and automated reports. Regenerative loads return the energy; a climatic chamber adds heat and cold. Endurance is not a bigger test; it is the same test refused permission to stop.

Have a charger test, EVSE certification or ageing-bank requirement? Send it across — clause-by-clause compliance matrix within two working days · [email protected]

Send tender spec

Specifications

Reference system, sized to your chargers.

The parameters below describe a reference type-test bench and ageing bank. Power classes, station counts, protocol depth and environmental pairing are settled at design review.

Illustrative image, not a delivered installation — a charger ageing bank: two facing rows of identical AC wallbox chargers mounted on steel frames, each connected by its cable to a shared load rack in the aisle, with tidy overhead cable trays and a small monitoring desk at the end of the row

Fig · 04 The ageing bank — the same test, refused permission to stop — illustrative, not a delivered installation

Where charger labs actually disappoint

Handshake coverage that stops at the happy path, so the field finds the unhappy ones; ageing banks that burn every tested kilowatt as heat until the energy bill caps how many stations can run; and safety test sets bolted on separately from the automation, so the one test nobody may skip is the one that requires manual effort.

The architecture here answers each: protocol matrices walked programmatically including interruption and resume, regenerative loads that make a big bank economical, and safety sequences wired into the same automation and reporting as everything else.

Full specification — expand

System	EV charger & EVSE test system — grid simulation, battery emulation, protocol conformance, safety and power-quality measurement, ageing banks · design, engineering, supply, installation, integration, commissioning, calibration and training
Charger Classes	AC 7–22 kW (Type 2 / IEC 62196) · DC fast charge to the 350 kW class (CCS2) · fleet and corridor charger duties
Grid Simulation	Programmable 1φ/3φ source, tens-of-kVA class · voltage/frequency deviation, sags, swells, harmonic injection · multichannel power measurement with THD analysis at input and output
Battery Emulation	Bidirectional DC, 0–1,000 V class · programmable pack curves, SoC behaviour and dynamics · full regenerative absorption — tested energy returns to the bus
Protocol Conformance	IEC 61851 CP/PP state matrix incl. fault states · ISO 15118 / DIN 70121 session negotiation, interruption and resume · OCPP backend simulation — authorisation, metering, remote ops · interoperability matrices across vehicle profiles · CAN where charger architectures use it
Safety Tests	HV withstand to the 6 kV class · insulation resistance · earth continuity · RCD trip behaviour · sequences integrated into the automation, not bolted on
Efficiency & PQ	Efficiency curves across the load range · input power factor and THD vs load · standby consumption · output ripple characterisation
Ageing / Endurance	Multi-station parallel banks — tens of chargers — 24×7 profile-driven · connect/negotiate/charge/disconnect cycling · regenerative loads · per-station logging, limit supervision, automated reporting · thermal soak via climatic chamber pairing
Automation	Sequence engine across grid, emulator, protocol and safety layers · live and historical curves · limit watch with disposition · report generation · resume-after-interruption
Environmental / EMC	Temperature and soak via the Neometrix climatic chamber line · EMC via the Neometrix EMI/EMC laboratory line — one qualification family
Standards Executed	IEC 61851-1 / -23 · IS 17017 · ISO 15118 / DIN 70121 · IEC 62196 · OCPP conformance scenarios · calibration ISO/IEC 17025-traceable, in scope of supply
Sourcing	Grid simulators, emulator power stages and analysers are proprietary bought-in components of established manufacturers · Neometrix engineers and builds the system — architecture, protocol harnesses, safety integration, bank engineering, automation, installation, calibration and acceptance
Status	Engineered to order — reference configuration, not yet built · sized to the chargers, volumes and standards at design review

PDF · 1 page

EV Charger & EVSE Test System — Capability Sheet

Tender Response

Send your specification — compliance matrix in two working days

Variants

One handshake, four duties.

Tenders and programmes call these charger testers, EVSE test benches, conformance rigs or ageing farms. What changes is the power class and whether the question is “does it comply?” or “does it last?”

Var · 01

AC EVSE Test Bench

7–22 kW wallbox and pole chargers — CP/PP signalling, safety suite, efficiency and PQ, at development and production-QA depth.

Var · 02

DC Fast-Charge Test Bench

CCS2 to the 350 kW class with full battery emulation and ISO 15118 / DIN 70121 conformance — the corridor charger proven end to end before the corridor.

Var · 03

Ageing & Endurance Banks

Tens of stations on regenerative loads, 24×7, profile-driven, per-station logged — reliability answered with data instead of confidence.

Var · 04

Interoperability & Protocol Labs

Vehicle-profile libraries, backend simulation and fault-case matrices — for charge-point operators and manufacturers who must work with every vehicle, not just the ones they tested against.

Applications

Where it applies.

Anywhere charging hardware meets certification, production or a purchase order with a reliability clause.

A · 01EVSE manufacturers — development, certification support & production QA

A · 02Charge-point operators & oil-marketing companies — acceptance & interoperability

A · 03Certification & research laboratories — IEC 61851 / IS 17017 test infrastructure

A · 04Fleet & depot programmes — charger fleet reliability before rollout

A · 05Grid-interaction studies — PQ, harmonics & standby behaviour at scale

A · 06Endurance & warranty engineering — multi-station ageing farms

FAQ

Common questions.

Plain-language answers from the engineering team.

Q · 01 Why does a charger tester need a battery emulator rather than a real EV?

Because a real vehicle is the least controllable instrument in the building. Its state of charge is wherever the last test left it, its BMS decides when to derate, and one vehicle represents exactly one implementation of the protocols. An emulator presents any pack voltage from 0 to 1,000 V, any state of charge on demand, and any vehicle profile from a library — then does it again identically, ten thousand times. It also absorbs the charger’s full output regeneratively, so a 350 kW test returns energy to the bus instead of cooking the room. Real vehicles still matter at the very end for interoperability spot-checks; but development, certification sequences and endurance all belong to the emulator, precisely because it has no personality of its own.

Q · 02 What actually happens in the IEC 61851 / ISO 15118 handshake?

Two layers of conversation before any serious power flows. The low layer is IEC 61851’s control-pilot signalling — a PWM line whose voltage levels announce the states: vehicle detected, ready to charge, charging, fault — plus proximity detection confirming the plug is seated and what current the cable can carry. The high layer, ISO 15118 (or its DC precursor DIN 70121), is a digital negotiation over the same pilot line: identities, tariffs, maximum voltage and current, target state of charge, and continuous renegotiation while charging. Field failures overwhelmingly live in these conversations — a session that dies on resume, a renegotiation misread, a fault state entered and never exited — which is why the conformance rig walks the entire state matrix including the unhappy paths, not just the demonstration-day sequence.

Q · 03 Why test the charger against a misbehaving grid?

Because the grid a charger meets in service is not the one on its nameplate. Voltage rides high near a light feeder and sags on a summer evening; frequency drifts; a neighbouring industrial load fills the waveform with harmonics; and a distant fault produces the sag-and-recover transient that reveals whether a charger rides through or drops the session. A programmable grid simulator reproduces all of it on schedule — and measures the charger’s own conduct in return: the harmonics it injects, its power factor across load, what it draws while idle. A public charging network is ultimately a grid citizen at scale; this is where its citizenship is tested.

Q · 04 What is the difference between type testing and the ageing bank?

Type testing asks whether the design is right; the ageing bank asks whether it stays right. The first is one charger on one bench, walked deep through conformance, safety, efficiency and abuse cases. The second is tens of chargers running the same modest cycle — connect, negotiate, charge, disconnect — around the clock for weeks, each station individually logged and limit-watched. Different failures live in each: a protocol defect appears on the bench; a relay that survives ten thousand operations but not thirty thousand, a connector that heats a little more each month, a firmware leak that crashes on day nineteen — those only surface in the bank. Regenerative loads are what make the bank economical: the energy circulates, so scale costs floor space rather than a power bill.

Q · 05 Which standards govern EV chargers in India?

The backbone is IEC 61851 — part 1 for general requirements and AC charging, part 23 for DC fast charging — adopted and adapted in India as IS 17017, which is the reference in Indian EVSE procurement and certification. Connectors and inlets follow IEC 62196 (the Type 2 and CCS2 geometry), high-level communication follows ISO 15118 with DIN 70121 still common for DC sessions, and network behaviour — authorisation, metering, remote management — runs on OCPP. A complete test system therefore has to span all four layers: power hardware, connector interface, communication stack and backend — which is what this page describes. The standards are what the laboratory executes; certification itself belongs to the accredited bodies.

Q · 06 Do you build the grid simulators and emulators yourselves?

No — programmable AC sources, bidirectional DC power stages and precision analysers are proprietary products from established manufacturers, selected for the duty. What Neometrix engineers and builds is the test system: the architecture that binds source, emulator and DUT; the protocol harnesses and vehicle-profile libraries; the safety sequences integrated into automation rather than bolted beside it; the ageing-bank engineering — power distribution, regeneration, per-station supervision; and the installation, calibration and acceptance that make results defensible. Same division of work as the battery and e-motor pages in this family. And to be straightforward: this configuration is engineered to order and has not yet been built, so nothing here is offered as a delivered reference.

↗

The EV test laboratory from Neometrix.

Charging, battery, electromagnetic and fuelling infrastructure — engineered as one family at our Noida facility.

↗ Battery

EV Battery Test System

The pack this charger spends its life negotiating with.

↗ EMC

EMI / EMC Test Laboratory

Where a power converter proves it can share the spectrum.

↗ Fuelling

Hydrogen Refuelling Station

The other way Neometrix fills a vehicle.

Browse all Neometrix product lines.

Get a quotation

Send your chargers
and your volumes.

The Projects desk replies within two working days with a clause-by-clause compliance matrix and a budgetary quotation. Write to [email protected] or use the form.

Enquire — charger test Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED TO ORDER — EV CHARGER TEST SYSTEMS IEC 61851 · IS 17017 · ISO 15118 · OCPP ENGINEERED IN NOIDA · INDIA

The grid on one side, a vehicle that isn’t there on the other.

A charger lives between two strangers. Test it against both.

Sized to the chargers and the certification route

Prove the design, then prove the decade

Thermal and electromagnetic, next door

Two emulated strangers, one instrumented handshake.

Grid Simulation

Protocol Conformance

Battery Emulation & Safety

The Ageing Bank

Reference system, sized to your chargers.

Where charger labs actually disappoint

One handshake, four duties.

AC EVSE Test Bench

DC Fast-Charge Test Bench

Ageing & Endurance Banks

Interoperability & Protocol Labs

Where it applies.

Common questions.

The EV test laboratory from Neometrix.

EV Battery Test System

EMI / EMC Test Laboratory

Hydrogen Refuelling Station

Send your chargers
and your volumes.

Similar Products

Share This Page

The grid on one side, a vehicle that isn’t there on the other.

A charger lives between two strangers. Test it against both.

Sized to the chargers and the certification route

Prove the design, then prove the decade

Thermal and electromagnetic, next door

Two emulated strangers, one instrumented handshake.

Grid Simulation

Protocol Conformance

Battery Emulation & Safety

The Ageing Bank

Reference system, sized to your chargers.

Where charger labs actually disappoint

One handshake, four duties.

AC EVSE Test Bench

DC Fast-Charge Test Bench

Ageing & Endurance Banks

Interoperability & Protocol Labs

Where it applies.

Common questions.

The EV test laboratory from Neometrix.

EV Battery Test System

EMI / EMC Test Laboratory

Hydrogen Refuelling Station

Send your chargersand your volumes.

Similar Products

Share This Page

Send your chargers
and your volumes.