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Supplier Details

Zhejiang Joy Electronic Technology Co., Ltd.

Year Established:2013

Business Type:Manufacturer and Trading Company

Management Certifiation:

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JOY311MC Three Phase Triple Phase Current Transformer Electricity Meter

JOY311MC is a new developed CT (Current Transformer) operated meter, which can be provided singlely or with the whole solution of meter, CT, and contactors together assembled in a meter box.

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Product Details

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Description

JOY311MC Three Phase Current Transformer Electricity Meter
JOY311MC is a new developed CT (Current Transformer) operated meter, which can be provided singlely or with the whole solution of meter, CT, and contactors together assembled in a meter box.

It is suitable for residential and commercial applications. Credit and management data is transfered from a point of sales(POS) to the meter via a 20-digit numeric token that is generated using the Standard Transfer Specification(STS) encryption prot℃ol and entered into meter via a keypad.

FEATURES:
● Suitable for commercial metering
● External circuit breaker
● External Current Transformer
● Complete set of solution of CT meter
● STS compliant
● Keypad with audible and text feedback
● Adjustable audio and visual low credit warning levels
● Adjustable power limit
● Adjustable emergency credit allowance
● Automatic diagnosis of various faults include contactor fault, memory ---device fault, etc.
● Improved sealing against ingress of insects
● IP54 Rated
● Significant Reverse Energy (SRE) detection
● Advanced tamper detection
● Easy switch between prepayment and post-payment option

VOLTAGE
● Nominal Voltage : 3 x 220/230/240V
● Operating Range: 70% to 130% of Un
● Frequency Range: 50/60Hz

CURRENT RATINGS
● Base Current (lb): 1.5A
● Max Current (lmax): 6A

STARTING CURRENT
● 4‰Ib

ACCURACY
● Class 1 (Class 2 optional)

MAX WITHSTAND VOLTAGE
● 450V (48hr)

INSULATION CLASS
● Insulation System Classification: Double insulation
● Insulation Level: 4kV rms for 1 minute

SUPPLY BURDEN
● Voltage Circuit: ≤ 2W/10VA@Un
● Current Circuit: ≤ 4.5VA@Ib

PROTECTION
● Overload Protection
● Tamper Protection: magnetic interference, open cover　
and reverse power
● No-load Protection
● SRE Measurement

OPERATING ENVIRONMENT
● Operating Temperature: -30℃ ~ 60℃
● Storage Temperature:-40℃ ~ 70℃
● Relative Humidity: ≤ 95%; annual mean 75%
● IP Rating: IP54

COMMUNICATION (Between MCU & CIU)
● Wired: Non-polarized 2 wire low voltage
● PLC (power line carrier) communication

STANDARD
● IEC 62055-31, IEC62055-41
● IEC 62052-11, IEC62053-21, IEC62056-21

EMC
● Electrostatic Discharge: 16kV air discharge; 10kV contact discharge
● Immunity to Fast Transient Burst: 4kV
● Surge Immunity: 4kV or 6kV alternative

LIQUID CRYSTAL DISPLAY (LCD)
● 87mm x 34mm
● 8 digits + icons + 2 digits (index)
● Backlight reserved
● Battery reserved

DISPLAY
● Credit balance
● Estimated days left
● Last recharge credit amount
● Total active power

LED INDICATOR
● Active: 10000 imp/kWh
● Reactive: 10000 imp/kVarh
● Communication LED
● Credit LED: low credit alarm

BUZZER
● Feedback on key press
● Token accept or reject
● Low credit alarm

USER INTERFACE
● 12 keys, international outlay standard with
0-9 numeric key, backspace and enter key

EXTERNAL INTERFACE
● Optical port

DISCONNECTION DEVICE
● Internal contactor in each phase

TERMINAL
● Type: fixed block
● Maximum cable size: Ф6 mm

INSTALLATION
● 1.8m height installation, indoor or outdoor wall-mounted
● CIU optional

PRODUCT LIFE
● 15 Years
● Data retained over 20 years

METER WEIGHT & DIMENSION
● Weight: 2.1kg
● Dimensions: 287mm x 170mm x 75mm

CT METER BOX

● Weight: 40kg
● Dimensions: 1000mm x 650mm x 280mm
● Material: Stainless Steel

Company Profile

Joy provides comprehensive solutions to energy metering and control globally. With a pool of talents, it is able to tailor solution as needed; with the factory sized 26500sqm and automated production lines, it is able to produce up to 2 million units annually.
Joy is devoted to helping utilities, corporation and consumers to better control scarce resources like heat, water, electricity and gas. After continuous and intensive development, Joy’s product range has been extended to heat, water, electricity and gas measuring devices, collection and communication devices, as well as energy control and management systems.
As a company with international presence, Joy has built up a number of R&D centers, sales and support centers which are closely located to its end customers. Joy is devoted to providing quicker and better support globally.
Joy team consists of experts from various backgrounds such as metering, communication and software industries. The team is a multi-national team holding strong global perspectives. Highly educated and experienced engineers form approximately 45% of the team. Joy has established cooperative relationship with a number of top universities in China including Tsinghua University, Tianjin University and Zhejiang University. Joy sets out a policy since 2012 – at least 10% of annual sales shall be invested into R&D in order to provide leading technology and products to our customers continuously. Joy owns more than 20 patents. It is one of the first companies that come out STS compliant water and gas meters, highly accurate ultrasonic water meters, heat cost allocators and so on.
Joy has two automated production lines for electronic modules (SMT, reflow soldering, AOI and wave soldering), more than 20 test benches for water meters, more than 10 test benches for heat meters, 5 test benches for gas meters, and more than 40 test benches for electricity meters. It has an environmental lab for temperature, humidity, shock and salty spray tests, an aging lab, a heat and water meter lab, an EMC lab (surge, static, fast transient impulse etc). Besides, a thermal lab is customized and built specially for heat cost allocators. Sufficient test equipment and stringent control procedures are in place to ensure high quality.
Joy has implemented RDM, OA, ERP and PMS systems. It is ISO90001, ISO14001 and MID D-module accredited. Joy is the first China based company that received MID accreditation for ultrasonic heat meter and STS approval for water meter. Up to 2013, Joy has provided products and services for over 60 countries or areas.
In near future, Joy sees itself as a leading provider of solutions to energy metering and control for residents, commercials and industries.

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