GZDW DC (screen) manual (EN)

DC power cabinet Product Manual

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Head record Overview··············································· ··············································· ···························2 1. Application scope············································ ··············································· ··········· 2 2. Operating environment conditions··········································· ··············································· ······ 2 3. Model meaning············································ ··············································· ··········· 2 4. Main technical parameters··········································· ··············································· ······ 3 5.

Module and monitoring system selection········································ ··············································· 4 6. Structural features and number of cabinets········································ ··············································· ··· 6 The first DC system battery management·········································· ··············································· ·· 7 1. Charging process············································· ··············································· ··········· 7 2. Operation when the main power supply is interrupted········································ ··············································· 7 3.

Operation when both main power supply and backup power supply are cut off···································· ···································· 7 4. Battery installation and maintenance·········································· ··············································· ····7 5. Regular battery maintenance··········································· ··············································· ·8 Chapter 2 System Installation and Maintenance·········································· ··············································· ···· 10 1.

It is recommended to install in the following locations·········································· ············································· 10 2. Inspection before operation········································· ··············································· ······ 10 3. Normal operation············································ ··············································· ··········10 4. Before connecting the DC power supply to the main power supply and working load, the following measures should be taken······························· ···········10 5.

Maintenance inspection rules··········································· ··············································· ···· 11 6.

Analysis of common faults············································ ··············································· ····· 12 Part Three DC System Configuration Plan·········································· ··············································· 13 GZDW30 wiring scheme············································· ··············································· ·····14 GZDW31 wiring scheme············································· ··············································· ·····15 GZDW32 wiring scheme············································· ··············································· ·····16 GZDW33 wiring scheme············································· ··············································· ·····17 GZDW34 wiring scheme············································· ··············································· ·····18 GZDW35 wiring scheme············································· ··············································· ·····19 GZDW40 wiring scheme············································· ··············································· ·····20 GZDW42 wiring scheme············································· ··············································· ·····twenty one -- 1 --

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1. Application scope Self-contained power plant serves as the operation and control power supply for high-voltage switches, relay protection, automatic devices, etc. and emergency lighting power supply. It can also be applied to GZDW series DC power cabinets are suitable for power distribution rooms in 10-500kV substations, power plants, high-rise buildings, residential quarters, etc., as well as small Other places requiring DC power supply. This product complies with: GB/T 19826-2005 "General technical conditions and safety requirements for DC power supply equipment in power engineering" GB/T8456-1996 "Low Voltage DC Switchgear Complete Sets" and other relevant regulations. 2.

Use environmental conditions 1. Ambient temperature: -10яя+45я; 2. Altitude: no more than 2400m; 3. Relative humidity: the daily average value is not greater than 95%, and the monthly average value is not greater than 90%; 4. Earthquake intensity: no more than 8 degrees; 5. Installation vertical inclination: no more than 5°; 6. Places without risk of fire, explosion, serious pollution, chemical corrosion and severe vibration; 7. Microcontroller anti-noise: 1000V 1µS pulse for 1 minute; 8. No interference from strong electromagnetic fields; 9. If the usage environment is inconsistent with the above, it shall be resolved through negotiation between the user and the manufacturer. 3.

Model meaning Note: Battery type: C ultra-high-rate cadmium-nickel battery; G high-rate cadmium-nickel battery; Z medium-rate cadmium-nickel battery; F Acid-proof lead-acid battery; M Maintenance-free lead-acid battery. -- 2 --

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4. Main technical parameters 1. The AC input power supply is two-way three-phase four-wire main power supply and backup power supply. Rated input voltage: three-phase four-wire AC 380V±15%, frequency Rate 50Hz±5%; 2. Lightning strike protection: higher than 2000:1; 3. Rated output DC voltage: 110V, 220V; 4. Rated output current: 6A, 10A, 15A, 20A, 30A, 40A, etc. (up to 600A); 5. Battery rated capacity: 7Ah, 10Ah, 20Ah, 24Ah, 38Ah, 65Ah, 100Ah, 200Ah, 300Ah, 500Ah, 800Ah, 1000Ah, 1500Ah, 2000Ah, 3000Ah; 6. Machine noise: 7. Working method: continuous working; 8. Voltage stabilization accuracy: я0.5%; 9. Steady flow accuracy: я0.5%; 10. Ripple coefficient: я0.1%; 11.

Uneven fluidity of parallel machines: я5%; 12. Power factor: я0.99; 13. Protection level: IP20; 14. Technical parameter table of three types of batteries: —-3--

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