GOODWE GMK330 Smart Meter Installation Guide
- June 13, 2024
- GOODWE
Table of Contents
GOODWE GMK330 Smart Meter Installation Guide
01 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS Please strictly follow these safety instructions in the user manual during the operation.
General Disclaimer
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The information in this quick installation guide is subject to change due to product updates or other reasons. All descriptions here are for guidance only.
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Before installations, read through the quick installation guide.
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All operations should be performed by trained and knowledgeable technicians who are familiar with local standards and safety regulations.
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Check the deliverables for correct model, complete contents, and intact appearance.
Contact the manufacturer if any damage is found or any component is missing. -
Strictly follow the installation, operation, and configuration instructions in this guide and user manual. The manufacturer shall not be liable for equipment damage or personal injury if you do not follow the instructions.
For more warranty details, please visit https://en.goodwe.com/warranty.
Safety Disclaimer
⚠ WARINING
- Make sure that the device is powered off before any operations.
- Ensure the cables are connected tightly, securely, and correctly. Inappropriate wiring may cause poor contact or damage the device.
- Additional circuit breakers are recommended on the voltage input side to avoid personal injury or device damage.
- You are recommended to add fuses with rated current of 0.5A on the voltage input side of the Smart Meter.
- CT direction: House–>Grid.
- Ensure to connect the voltage input side of the Smart Meter between Loads and Household meter, CT and L cable connected correctly as well. Otherwise, the monitoring data may be wrong.
- Pay attention to the silkscreens on the device when connecting the voltage input cables. A wrong connection may cause damage to the device.
- Pay attention to the silkscreens on the device when connecting the CT and RS485 to the Smart Meter. A wrong connection may cause incorrect reading values.
- In areas at risk of lightning, if the input cable of the device exceeds 10m, you are recommended to use an external lightning protection device. If the communication cables are wired with grounded metal conduits, the lightning protection device is not necessary.
- The ingress protection rating of the smart meter is IP20, which is suitable to be installed indoors or inside of the distribution box. For outdoor installation, prepare a waterproof cover to protect the smart meter. Otherwise it will cause damage to the equipment, which is beyond the manufacturer’s liability.
Personal Requirements
- Personnel who install or maintain the equipment must be strictly trained, learn about safety precautions and correct operations.
- Only qualified professionals or trained personnel are allowed to install, operate, maintain, and replace the equipment or parts.
Check before Power-on
Storage
If the equipment is not to be installed or used immediately, please ensure
that the storage environment meets the following requirements:
- Do not unpack the outer package or throw the desiccant away.
- Store the equipment in a clean place. Make sure the temperature and humidity are appropriate and no condensation.
- If the smart meter has been long term stored, it should be checked by professionals before being put into use.
02 EU Declaration of Conformity
The module sold in the European market meets the following directives and requirements:
- Electromagnetic compatibility Directive 2014/30/EU (EMC)
- Electrical Apparatus Low Voltage Directive 2014/35/EU (LVD)
- Restrictions of Hazardous Substances Directive 2011/65/EU and (EU) 2015/863 (RoHS)
- Waste Electrical and Electronic Equipment 2012/19/EU
- Registration, Evaluation, Authorization and Restriction of Chemicals (EC) No 1907/2006
(REACH) You can download the EU Declaration of Conformity on https://en.goodwe.com.
03 Technical Parameters
NOTE
The smart meters are not kilowatt-hour metering devices. They can only be used
to calculate the element and energy in solar and hybrid systems. Please refer
to the data measured by a standard kilowatt-hour meter when you need to
calculate the electricity tariff.
04 Product Introduction
05 Wiring System
Connect CT cables
NOTICE
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Only applicable to GM330.
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Prepare the CT. Or contact the device manufacturer for purchasing.
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Specifications of the CT:
1. Choose nA/5A for the current transformation ratio of the CT. (nA: For primary current of the CT, n ranges from 200 to 5000.Set the current value depending on the actual needs.5A: The output current of the secondary current of the CT.)
2. The recommended precision of the CT: 0.5, 0.5s, 0.2, 0.2s. Ensure the sampling error for the CT current shall be ≤ 1%. -
The CT bore diameter shall be bigger than the outer diameter of AC power cable, to ensure the AC power cable can be inserted through CT.
The dimension and appearance of the CT differs slightly according to its type provided by the device manufacturer. However, the installation and wiring methods are the same.
Example CT1
The recommended conductor cross-sectional area of the CT’s secondary output cable: 1.6mm² (15AWG cable).
Example CT2
For specific CT wirings, refer to the documents provided by the respective manufacturer.
06 Installation
07 Commissioning
Power ON
Step 1 Connect the smart meter cables.
Step 2 Turn on the breaker on the voltage input side. Then the smart meter is
powered on.
08 Maintenance
⚠ DANGER
Power off the smart meter before operations and maintenance. Otherwise, the
smart meter may be damaged or electric shocks may occur.
Power OFF
Step 1 (Optional)Turn off the breaker on the voltage input side.
Step 2 Take out the terminals from the voltage input side of the Smart Meter,
then the smart meter is powered off.
Removing the Smart meter
Step 1 Disconnect all the cables, including input power cable cables, CT
cables, RS485 communication cables.
Step 2 Press the buckle at the bottom of the device to take it from the rail.
Step 3 Store the smart meter properly. If the smart meter needs to be used
later, ensure that the storage conditions meet the requirements.http://www.goodwe.com
GoodWe Technologies Co., Ltd.
No. 90 Zijin Rd., New District, Suzhou, 215011, China
www.goodwe.com
service@goodwe.comhttps://en.goodwe.com/contact-
us.asp
References
- GoodWe: Smart Energy Innovator
- GoodWe: Smart Energy Innovator
- GoodWe Warranty
- GoodWe: Slimme energie-innovator
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>