20kW To 100kw Silent 4 Cylinder Diesel Generator

Product Description

20-100kW generator set driven by 4-cylinder water-cooled diesel engine, primarily used for emergency backup and prime power. NEWLAND can customize the engine brand according to customer requirements, such as CUMMINS, BAUDOUIN, WEICHAI, RICARDO, etc. Water-cooled diesel generators have larger size and weight, making them unsuitable for rapid mobile deployment, but they offer an exceptionally long service life and lower noise levels.

Product Advantages

1. Cummins/Baudouin/Weichai/Ricardo engines

2. Stanford/Leroy-Somer alternator

3. Capable of multi-unit parallel operation or parallel operation with the grid

4. Built-in or external ATS.

5. Optional PMG excitation for superior inductive load capability.

Product Uses

1. ESP (Emergency Standby Power)

Definition: Operates only during power outages or emergencies, not for continuous power generation.
Typical Applications:

• Hospitals & data centers (supports critical systems during UPS switchover).

• Factory emergency lighting & safety systems (ensures operations during blackouts or fires).

• Telecom base stations (provides temporary power until grid restoration).
  Operational Limits:

  • Max. 200 hours/year at ≤80% load (prevents overheating & excessive wear).

  • Unsuitable for prolonged use—reduces engine lifespan if overused.

2. LTP (Limited Time Prime Power)

Definition: Serves as the primary power source but with restricted annual runtime (typically ≤500 hours). Ideal for periodic or intermittent use.
Typical Applications:

• Microgrids/off-grid power (e.g., remote mining sites, islands with scheduled maintenance).

• Seasonal demands (e.g., agricultural irrigation, aquaculture during peak seasons).

• Construction sites (temporary power for projects with unstable grid supply).
  Operational Limits:

  • ≤80% load capacity, with annual runtime caps (varies by manufacturer).

  • Requires regular cooling system checks (prevents clogging/corrosion in water-cooled systems).

FAQ

1. What standards define the prime/standby power ratings for temperature rise and insulation class?

- Answer: Prime power uses 125/40°H (Class H insulation), 105/40°F (Class F), or 80/40°B (Class B). Standby power follows 163/27 or 150/40 standards. 

2. How does water cooling extend generator lifespan compared to air cooling?

- Answer: Water-cooled systems maintain stable temperatures under heavy loads, critical for prolonged use (e.g., 2,000–3,000 hours vs. 200–500 hours for gas generators).

3. What safety tests are conducted on the generators?

- Answer: High-voltage tests include 1,800V (single-phase) and 2,160V (three-phase), ensuring insulation reliability. 

4. What engine brands do you use, and how do they perform?

- Answer: Options include Cummins (high-altitude efficiency), Isuzu (low noise/fuel consumption), and Weichai (CRDI technology for precise injection). 

5. How do you handle shipping for bulky water-cooled units?

- Answer: Forklifts/cranes are mandatory due to weight/size. Standard packaging uses pearl cotton; wooden crates are optional.