DG2
FORM
ADDITIONAL INFORMATION FOR OVER 10 kW
SOLAR, OR OTHER DISTRIBUTED
GENERATION TYPE NETWORK APPROVAL
APPLICATION FORM
Counties Power Limited | 14 Glasgow Road, Pukekohe, Auckland 2120
Private Bag 4, Pukekohe 2340, New Zealand | www.countiespower.com
Data required for each distributed generation system
Data required for range of power output
10-100 kVA
100-750 kVA
> 750 kVA
Type of generation unit – synchronous, asynchronous, etc.
P
P
P
Type of prime mover
P
P
P
Rated terminal voltage (kV)
P
P
P
Rated generation capacity (kVA)
P
P
P
P
P
P
P
P
P
Rated minimum power factors (both over and under excited) at rated kVA
Maximum continuous active power generated (kW)
P
Maximum short term active power generated (kW)
For asynchronous generations, reactive power requirements (kVAr)
P
P
NA
Anticipated operating regime e.g. continuous, intermittent, peak lopping
P
P
P
Method of voltage control
P
P
P
Generation transformer details, if applicable
P
Interface arrangements
Data required for range of power output
10-100 kVA
100-750 kVA
> 750 kVA
The means of connection and disconnection
P
P
P
The means of synchronisation between the distribution network and the distributed
generation
P
P
P
Generation neutral earthing arrangements
Single line diagram for installation detailing circuit breakers, base loads and generation
capabilities
P
P
P
P
10-100 kVA
100-750 kVA
> 750 kVA
Interface arrangements
Data required for range of power output
Lowest frequency at which the distributed generation can run
P
Actual low frequency trip setting and time delay
P
P
P
Actual over frequency trip setting and time delay
P
P
P
Minimum operating power
P
Generation kW/kVAr capability charts (at lower voltage terminals at nominal and ±10% of nominal voltage) at:
(a) maximum short term power
(b) maximum continuous power
P
P
P
(c) 75% output
P
(d) 50% output
P
(e) minimum power
P
Auxiliary power requirements at:
Website Version August 2015 | Page 1
DG2
FORM
ADDITIONAL INFORMATION FOR OVER 10 kW
SOLAR, OR OTHER DISTRIBUTED
GENERATION TYPE NETWORK APPROVAL
APPLICATION FORM
Counties Power Limited | 14 Glasgow Road, Pukekohe, Auckland 2120
Private Bag 4, Pukekohe 2340, New Zealand | www.countiespower.com
Interface arrangements
Data required for range of power output
10-100 kVA
100-750 kVA
> 750 kVA
(a) rated power output
P
(b) minimum power output
P
(c) start up
P
Start up times to minimum operating power:
(a) from cold
P
(b) from warm
P
(c) from hot
P
Normal ramp rate
P
Time for cold start to full rated output
P
P
Inertia constant (seconds) (whole machine)
Stator resistance
P
Direct axis synchronous reactance
P
Quadrature axis synchronous reactance
P
Direct axis transient reactance
P
Quadrature axis transient reactance
P
Direct axis sub transient reactance
P
Quadrature axis sub transient reactance
P
Leakage (positive sequence) reactance
P
Negative sequence reactance
P
Zero sequence reactance
P
Earthing resistance/reactance
P
Time constants:
(a) direct axis transient open circuit
P
(b) quadrature axis transient open circuit
P
(c) direct axis sub transient open circuit
P
(d) quadrature axis sub transient open circuit
P
Generation transformer details (impedance, tap changer, vector group, earthing,
maximum overvoltage capability at rated frequency etc.)
P
Type of excitation system (block diagram/specifications, forward/feedback gains/time
constants and limits)
P
P
Speed governor and prime mover data (detailed functional description of governing
system with all subsystems including system control and turbine time)
P
P
Website Version August 2015 | Page 2
DG2
FORM
ADDITIONAL INFORMATION FOR OVER 10 kW
SOLAR, OR OTHER DISTRIBUTED
GENERATION TYPE NETWORK APPROVAL
APPLICATION FORM
Counties Power Limited | 14 Glasgow Road, Pukekohe, Auckland 2120
Private Bag 4, Pukekohe 2340, New Zealand | www.countiespower.com
Protection Requirements
Protection Requirements
10-100 kVA
100-750 kVA
> 750 kVA
Generation circuit breaker
P
P
P
Dedicated transformer
P
Disconnect/isolate switch
P
P
P
Over-voltage protection
P
P
P
Under-voltage protection
P
P
P
Over-frequency protection
P
P
P
Under-frequency protection
P
P
P
P
P
Earth-fault protection
Over-current voltage restraint protection
P
Neutral voltage displacement protection
P
P
P
Synchronisation
P
P
P
Loss of network supply
P
P
P
P
P
Power factor or voltage regulation equipment
Website Version August 2015 | Page 3